Flask Framework

1. Flask Framework: A Beginner's Guide

The Flask framework is a popular, lightweight “microframework” for Python used for building web applications. It's particularly well-suited for beginners due to its simplicity and flexibility. This article provides a comprehensive introduction to Flask, covering its core concepts, setup, basic usage, and some more advanced features. We will also touch upon how Flask can be used in conjunction with other technologies for more complex applications. Understanding Flask is a valuable skill for anyone interested in Web Development or building APIs.

What is Flask?

Unlike more comprehensive frameworks like Django, Flask doesn't dictate a specific structure or provide a lot of built-in features. This minimalist approach gives developers more control and allows them to choose the components they need. Flask provides the essentials – routing, request handling, and templating – and leaves the rest to you. This makes it perfect for small to medium-sized applications, RESTful APIs, and prototypes. It’s built on Werkzeug, a WSGI toolkit, and Jinja2, a templating engine.

• **Microframework:** This means it’s designed to be small and extensible.
• **WSGI Compliance:** Flask adheres to the Web Server Gateway Interface (WSGI) standard, ensuring compatibility with various web servers.
• **Jinja2 Templating:** Jinja2 is a powerful and flexible template engine that allows you to create dynamic HTML pages.
• **Extensible:** Flask's core is minimal, but it can be extended using extensions to add features like database integration, form validation, and authentication.

Setting up Your Environment

Before you can start using Flask, you need to set up your development environment.

1. **Python Installation:** Ensure you have Python 3.7 or later installed. You can download it from [1](https://www.python.org/downloads/). 2. **Virtual Environment (Recommended):** Creating a virtual environment isolates your project's dependencies from the global Python installation. This is crucial for managing different project requirements.

  * Open your terminal or command prompt.
  * Navigate to your project directory.
  * Run `python3 -m venv venv` (or `python -m venv venv` on Windows).
  * Activate the virtual environment:
    * On Linux/macOS: `source venv/bin/activate`
    * On Windows: `venv\Scripts\activate`

3. **Install Flask:** Once the virtual environment is activated, install Flask using pip:

  * `pip install Flask`

Your First Flask Application

Let's create a simple "Hello, World!" application.

1. **Create a Python file:** Create a file named `app.py` (or any other name you prefer). 2. **Write the code:** Add the following code to `app.py`:

```python from flask import Flask

app = Flask(__name__)

@app.route("/") def hello_world():

return "

Hello, World!

"

if __name__ == '__main__':

   app.run(debug=True)

```

3. **Explanation:**

  * `from flask import Flask`: Imports the Flask class.
  * `app = Flask(__name__)`: Creates a Flask application instance.  `__name__` is a special Python variable that represents the name of the current module.
  * `@app.route("/")`: This is a decorator that associates the `hello_world` function with the root URL ("/").  Whenever a user visits the root URL, Flask will execute this function.  This is a core concept of Routing.
  * `def hello_world():`: Defines the function that will be executed when the root URL is accessed.

* `return "

Hello, World!

"`: Returns the HTML string "Hello, World!" as the response.

  * `if __name__ == '__main__':`:  Ensures that the following code is executed only when the script is run directly (not when it's imported as a module).
  * `app.run(debug=True)`: Starts the Flask development server.  `debug=True` enables debugging mode, which provides helpful error messages and automatically reloads the server when you make changes to the code.

4. **Run the application:**

  * Open your terminal or command prompt.
  * Navigate to the directory where you saved `app.py`.
  * Run `python app.py`.
  * You should see output indicating that the Flask development server is running.

5. **Access the application:** Open your web browser and go to `http://127.0.0.1:5000/`. You should see "Hello, World!" displayed in your browser.

Routing and Request Handling

Flask's routing system maps URLs to Python functions. The `@app.route()` decorator is used to define these mappings.

• **Dynamic Routes:** You can create dynamic routes that accept variables in the URL.

```python @app.route("/user/<username>") def show_user_profile(username):

   # Show the user profile for that user
   return f"User: {username}"

@app.route("/post/<int:post_id>") def show_post(post_id):

   # Show the post with the given id, the id is an integer
   return f"Post ID: {post_id}"

```

In this example, `<username>` and `<int:post_id>` are placeholders for variables. Flask will pass the value of the variable as an argument to the function. The `int:` converter ensures that `post_id` is an integer. Understanding how to use variables in URLs is crucial for building dynamic web applications. This is closely related to URL Parameters.

• **Request Object:** Flask provides a `request` object that contains information about the incoming request, such as form data, query parameters, and headers.

```python from flask import request

@app.route("/login", methods=['POST']) def login():

   if request.method == 'POST':
       username = request.form['username']
       password = request.form['password']
       # Authentication logic here
       return f"Logged in as: {username}"
   else:
       return "Login method not allowed"

```

This example shows how to access form data using `request.form`. The `methods` parameter in `@app.route()` specifies the HTTP methods that the route accepts.

Templating with Jinja2

Jinja2 is a powerful templating engine that allows you to separate the presentation logic from your Python code. It’s a key component of the Model-View-Controller (MVC) architectural pattern.

1. **Create a templates folder:** Create a folder named `templates` in your project directory. 2. **Create a template file:** Create an HTML file inside the `templates` folder, for example, `index.html`:

```html <!DOCTYPE html> <html> <head>

   <title>Flask Template</title>

</head> <body>

Hello,

1. Template:Name

Template:Name is a fundamental building block in MediaWiki, allowing you to create reusable content snippets that can be dynamically inserted into multiple pages. This article will provide a comprehensive guide for beginners on understanding, creating, and using templates, specifically focusing on the core concepts applicable to MediaWiki 1.40 and beyond. We'll cover everything from basic syntax to more advanced techniques, including parameters, default values, conditional statements, and common pitfalls to avoid. This will empower you to streamline content creation, ensure consistency across your wiki, and enhance the overall maintainability of your site. The concepts detailed here are crucial for anyone looking to contribute significantly to a MediaWiki-based platform, especially those involved in topics like Technical Analysis, Trading Strategies, and Market Trends.

What are Templates?

Imagine you frequently need to include the same information on multiple pages – perhaps a standard disclaimer, a navigation box, or a formatted table of Financial Ratios. Manually copying and pasting this information is time-consuming and prone to errors. Templates solve this problem.

A template is essentially a page that contains content designed to be *transcluded* – that is, inserted into other pages without actually moving the template's content. When a template is transcluded, the receiving page displays the template’s content as if it were directly written there. However, any changes made to the template are automatically reflected on all pages where it is used.

This is incredibly powerful for maintaining consistency and simplifying updates. For instance, if a legal disclaimer changes, you only need to edit the template once, and the change will propagate to every page that includes it. This is particularly useful for rapidly changing information like Volatility Indicators or Economic Calendars.

Basic Template Syntax

Templates reside in the Template: namespace. To create a template, simply create a new page starting with "Template:". For example, to create a template named "Example", you would create a page titled "Template:Example".

The core of template syntax revolves around the `Template:...` construct. This is how you *call* or *invoke* a template on a page. Within the double curly braces, you specify the template name.

For example, if you created a template named "Template:Greeting" with the following content:

```wiki Hello, Wiki User! Welcome to our wiki. ```

You would include this greeting on another page by writing:

```wiki

1. Template:Greeting

Template:Greeting is a fundamental and highly versatile template within the MediaWiki environment, designed to dynamically generate personalized greetings for users. This article provides a comprehensive guide to understanding, utilizing, and customizing this template, catering specifically to beginners. We will cover its core functionality, parameters, usage examples, advanced customization options, troubleshooting common issues, and its role within the broader context of wiki user engagement.

What is a Template?

Before diving into the specifics of Template:Greeting, it’s crucial to understand what a Template is in MediaWiki. Templates are pre-defined sets of wiki markup that can be inserted into pages to consistently display specific content. They act as reusable building blocks, preventing repetitive typing and ensuring uniformity across the wiki. Think of them as functions in programming – you provide certain inputs (parameters), and the template generates a pre-defined output. Using templates promotes efficient content management and a consistent user experience. They are essential for maintaining a professional and organized wiki. Related concepts include Help:Variables and Help:Magic words.

Core Functionality of Template:Greeting

Template:Greeting’s primary purpose is to display a customized greeting message to a user, often incorporating their username. It typically leverages MediaWiki's built-in parser functions to determine the current time and tailor the greeting accordingly (e.g., "Good morning," "Good afternoon," "Good evening"). Beyond a simple greeting, the template can also be extended to display welcome messages, recent activity notifications, or links to helpful resources for new users. It's a crucial element in fostering a welcoming and engaging community environment. Understanding Help:Linking and referencing is key to adding helpful links within the greeting.

Parameters

Template:Greeting utilizes several parameters to control its behavior and output. These parameters are specified when the template is included on a page using the `` syntax. Here's a breakdown of the common parameters:

• `username`: (Optional) The username to greet. If omitted, the template will automatically attempt to determine the current user’s username.
• `greeting`: (Optional) Allows you to override the default greeting message. This can be useful for special occasions or themed greetings.
• `time-format`: (Optional) Specifies the format for displaying the time. Defaults to a 12-hour format. Acceptable values include "12" or "24".
• `show-time`: (Optional) A boolean value (true/false) that determines whether the current time is displayed alongside the greeting. Defaults to "true".
• `custom-message`: (Optional) Allows you to add a completely custom message after the greeting. This parameter is perfect for displaying specific announcements or welcome information.
• `image`: (Optional) Specifies the name of an image to be displayed alongside the greeting. Use standard MediaWiki image syntax (e.g., `File:Example.png`).
• `link`: (Optional) A URL to link from the greeting. Useful for linking to a user's profile or a welcome page.
• `linktext`: (Optional) The text to display for the link specified by the `link` parameter.
• `bgcolor`: (Optional) Sets the background color of the greeting box. Accepts standard HTML color codes (e.g., `#f0f0f0`).
• `textcolor`: (Optional) Sets the text color of the greeting. Accepts standard HTML color codes.

Usage Examples

Here are several examples demonstrating how to use Template:Greeting with different parameters:

1. **Basic Usage (Automatic Username & Default Greeting):**

   ```wiki
   
   ```

   This will display a greeting like "Good morning, [Your Username]!" along with the current time.

2. **Specifying a Username:**

   ```wiki
   
   ```

   This will display "Good morning, ExampleUser!"

3. **Custom Greeting Message:**

   ```wiki
   
   ```

   This will display "Welcome back, [Your Username]!"

4. **Custom Greeting with Time Format:**

   ```wiki
   
   ```

   This will display "Greetings, [Your Username]!" followed by the current time in 24-hour format.

5. **Hiding the Time:**

   ```wiki
   
   ```

   This will display a greeting without the current time.

6. **Adding a Custom Message:**

   ```wiki
   
   ```

   This will display the greeting followed by "Don't forget to check out the Help:Contents!".

7. **Including an Image:**

   ```wiki
   
   ```

   This will display a small Wiki logo next to the greeting.

8. **Adding a Link:**

   ```wiki
   
   ```

   This will display the greeting followed by a link labeled "Visit Example.com" pointing to https://www.example.com.

9. **Customizing Colors:**

   ```wiki
   
   ```

   This will display the greeting in a light blue box with dark blue text.

10. **Combining Parameters:**

   ```wiki
   
   ```

   This demonstrates how to combine multiple parameters for a comprehensive greeting message.

Advanced Customization

While the parameters described above cover most common use cases, Template:Greeting can be further customized by modifying the template’s source code. This requires a basic understanding of MediaWiki markup and parser functions. You can access the template’s source code by clicking the "View source" tab on the Template:Greeting/doc page (or the template itself if documentation doesn't exist).

Here are some advanced customization possibilities:

• **Conditional Greetings:** Use `#if` statements to display different greetings based on user groups (e.g., administrators, registered users, anonymous users). This requires using the `{{#ifeq:Template:USERGROUPS...}}` construct. See Help:Conditional statements for more details.
• **Dynamic Content:** Integrate with other templates or extensions to display dynamic content based on user preferences or recent activity.
• **Custom Time Formats:** Use the `Template:Formattime` parser function to create highly customized time formats. Refer to Help:FormatTime for comprehensive documentation.
• **Error Handling:** Implement error handling to gracefully handle cases where a username is not provided or an image file is missing. Use `#ifexist` to check for file existence.
• **Localization:** Support multiple languages by using the Extension:Translate extension and defining translations for the greeting messages.

Troubleshooting Common Issues

• **Template Not Displaying:** Ensure that the template is correctly included on the page using the `` syntax. Check for typos in the template name.
• **Incorrect Username:** If the template is not displaying the correct username, verify that the user is logged in. If you are specifying a username manually, double-check the spelling.
• **Time Not Displaying Correctly:** Ensure that the server’s time is correctly configured. Verify the `time-format` parameter is set to the desired value ("12" or "24").
• **Image Not Displaying:** Make sure the image file exists in the wiki and that the filename is correct. Verify that the image syntax is correct (e.g., `File:Example.png`).
• **Styling Issues:** If the colors or other styling are not displaying as expected, double-check the HTML color codes and ensure they are valid.

Template Documentation

Every template should have comprehensive documentation. This is typically created on a subpage of the template, such as `Template:Greeting/doc`. The documentation should include:

• A clear description of the template’s purpose.
• A list of all available parameters, with detailed explanations and examples.
• Usage examples demonstrating common use cases.
• Troubleshooting tips for common issues.
• Links to related templates and documentation.

Relationship to Trading and Financial Analysis (for context, as requested)

While seemingly unrelated, the principles behind a well-designed template like Template:Greeting mirror best practices in financial analysis and trading. Just as a template provides a consistent and reliable output based on input parameters, successful trading relies on consistent application of strategies and analysis. Consider these analogies:

• **Parameters as Indicators:** The template’s parameters (username, greeting, time-format) are analogous to technical indicators like Moving Averages, MACD, or RSI. Each parameter modifies the output, just as each indicator provides a different perspective on market data.
• **Template Logic as Trading Strategy:** The logic within the template (determining the greeting based on time) resembles a trading strategy. A defined set of rules (time of day) leads to a specific action (greeting). Similar to a Breakout strategy, the template responds to a specific condition.
• **Customization as Risk Management:** The ability to customize the template reflects the need for risk management in trading. Adjusting parameters allows for tailoring the output to specific circumstances, just as adjusting position size or stop-loss orders manages risk.
• **Consistency as Backtesting:** The consistent output of the template is akin to the need for backtesting in trading. A reliable template ensures predictable results, just as backtesting validates the performance of a trading strategy.
• **Documentation as Trading Journal:** The documentation for the template is like a trading journal. It records the rules, parameters, and expected outcomes, allowing for review and improvement.
• **Market Trends & Template Updates:** Just as market trends change, requiring adjustments to trading strategies (e.g., shifting from a Trend Following to a Mean Reversion approach), templates may need updates to remain relevant and effective.
• **Volatility and Parameter Sensitivity:** The sensitivity of the template's output to parameter changes mirrors the concept of volatility in financial markets. Small changes in input can lead to significant differences in the outcome.
• **Correlation & Parameter Interdependence:** The interaction between different template parameters is similar to correlations between different assets.
• **Support and Resistance Levels & Template Limits:** The limitations of the template (e.g., the types of parameters it accepts) are like support and resistance levels in a market – boundaries that define the range of possible outcomes.
• **Fibonacci Retracements & Template Refinement:** Iteratively refining the template's code and parameters is analogous to using Fibonacci Retracements to identify potential price targets.
• **Elliot Wave Theory & Template Evolution:** The evolution of a template over time, with new features and improvements, can be compared to Elliot Wave Theory, where patterns repeat at different scales.
• **Candlestick Patterns & Template Visualizations:** The visual presentation of the greeting (colors, images) can be considered a form of visualization, similar to how Candlestick patterns provide a visual representation of price action.
• **Bollinger Bands & Template Boundaries:** The parameters of the template define its boundaries, similar to how Bollinger Bands define a range around a moving average.
• **Ichimoku Cloud & Template Conditions:** The conditional logic within the template (e.g., displaying different greetings based on user groups) is analogous to the complex conditions defined by the Ichimoku Cloud.
• **Stochastic Oscillator & Template Momentum:** The dynamic nature of the greeting (changing based on the time of day) can be compared to the momentum indicators like the Stochastic Oscillator.
• **Average True Range (ATR) & Template Variability:** The degree to which the template’s output can vary based on parameter changes is similar to the Average True Range (ATR), which measures market volatility.
• **Donchian Channels & Template Range:** The range of possible outputs from the template, defined by its parameters, can be compared to Donchian Channels, which define a price range over a specific period.
• **Parabolic SAR & Template Acceleration:** The ability to customize the template to respond quickly to changing conditions is analogous to the Parabolic SAR, which accelerates as prices move.
• **Volume Weighted Average Price (VWAP) & Template Importance:** The frequency with which the template is used can be compared to the Volume Weighted Average Price (VWAP), which reflects the importance of price levels based on trading volume.
• **Harmonic Patterns & Template Complexity:** The intricate logic and interdependencies within a highly customized template can be compared to the complexity of Harmonic Patterns.
• **Renko Charts & Template Simplification:** Simplifying the template to focus on essential parameters is analogous to using Renko Charts to filter out noise and focus on significant price movements.
• **Heikin Ashi Charts & Template Smoothing:** Using the template to smooth out variations in the user experience is similar to using Heikin Ashi Charts to smooth out price data.
• **Keltner Channels & Template Volatility:** The template’s responsiveness to changes in user data or system settings is similar to how Keltner Channels adapt to changing market volatility.
• **Pivot Points & Template Key Levels:** The key parameters of the template can be considered pivot points that define its behavior.

See Also

• Help:Templates
• Help:Variables
• Help:Magic words
• Help:Linking and referencing
• Help:Conditional statements
• Help:FormatTime
• Extension:Translate
• Template:Documentation
• MediaWiki syntax
• Help:Contents

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This would render as:

Hello, Wiki User! Welcome to our wiki.

Parameters: Making Templates Dynamic

The real power of templates comes from their ability to accept *parameters*. Parameters allow you to pass data to the template, making its output dynamic and adaptable to different situations. Parameters are specified within the template call, separated by an equals sign (=).

Let's modify our "Greeting" template to accept a name as a parameter:

```wiki Hello, {{{1}}}! Welcome to our wiki. ```

Now, when you call the template, you can specify the name:

```wiki

1. Template:Greeting

Template:Greeting is a fundamental and highly versatile template within the MediaWiki environment, designed to dynamically generate personalized greetings for users. This article provides a comprehensive guide to understanding, utilizing, and customizing this template, catering specifically to beginners. We will cover its core functionality, parameters, usage examples, advanced customization options, troubleshooting common issues, and its role within the broader context of wiki user engagement.

What is a Template?

Before diving into the specifics of Template:Greeting, it’s crucial to understand what a Template is in MediaWiki. Templates are pre-defined sets of wiki markup that can be inserted into pages to consistently display specific content. They act as reusable building blocks, preventing repetitive typing and ensuring uniformity across the wiki. Think of them as functions in programming – you provide certain inputs (parameters), and the template generates a pre-defined output. Using templates promotes efficient content management and a consistent user experience. They are essential for maintaining a professional and organized wiki. Related concepts include Help:Variables and Help:Magic words.

Core Functionality of Template:Greeting

Template:Greeting’s primary purpose is to display a customized greeting message to a user, often incorporating their username. It typically leverages MediaWiki's built-in parser functions to determine the current time and tailor the greeting accordingly (e.g., "Good morning," "Good afternoon," "Good evening"). Beyond a simple greeting, the template can also be extended to display welcome messages, recent activity notifications, or links to helpful resources for new users. It's a crucial element in fostering a welcoming and engaging community environment. Understanding Help:Linking and referencing is key to adding helpful links within the greeting.

Parameters

Template:Greeting utilizes several parameters to control its behavior and output. These parameters are specified when the template is included on a page using the `` syntax. Here's a breakdown of the common parameters:

• `username`: (Optional) The username to greet. If omitted, the template will automatically attempt to determine the current user’s username.
• `greeting`: (Optional) Allows you to override the default greeting message. This can be useful for special occasions or themed greetings.
• `time-format`: (Optional) Specifies the format for displaying the time. Defaults to a 12-hour format. Acceptable values include "12" or "24".
• `show-time`: (Optional) A boolean value (true/false) that determines whether the current time is displayed alongside the greeting. Defaults to "true".
• `custom-message`: (Optional) Allows you to add a completely custom message after the greeting. This parameter is perfect for displaying specific announcements or welcome information.
• `image`: (Optional) Specifies the name of an image to be displayed alongside the greeting. Use standard MediaWiki image syntax (e.g., `File:Example.png`).
• `link`: (Optional) A URL to link from the greeting. Useful for linking to a user's profile or a welcome page.
• `linktext`: (Optional) The text to display for the link specified by the `link` parameter.
• `bgcolor`: (Optional) Sets the background color of the greeting box. Accepts standard HTML color codes (e.g., `#f0f0f0`).
• `textcolor`: (Optional) Sets the text color of the greeting. Accepts standard HTML color codes.

Usage Examples

Here are several examples demonstrating how to use Template:Greeting with different parameters:

1. **Basic Usage (Automatic Username & Default Greeting):**

   ```wiki
   
   ```

   This will display a greeting like "Good morning, [Your Username]!" along with the current time.

2. **Specifying a Username:**

   ```wiki
   
   ```

   This will display "Good morning, ExampleUser!"

3. **Custom Greeting Message:**

   ```wiki
   
   ```

   This will display "Welcome back, [Your Username]!"

4. **Custom Greeting with Time Format:**

   ```wiki
   
   ```

   This will display "Greetings, [Your Username]!" followed by the current time in 24-hour format.

5. **Hiding the Time:**

   ```wiki
   
   ```

   This will display a greeting without the current time.

6. **Adding a Custom Message:**

   ```wiki
   
   ```

   This will display the greeting followed by "Don't forget to check out the Help:Contents!".

7. **Including an Image:**

   ```wiki
   
   ```

   This will display a small Wiki logo next to the greeting.

8. **Adding a Link:**

   ```wiki
   
   ```

   This will display the greeting followed by a link labeled "Visit Example.com" pointing to https://www.example.com.

9. **Customizing Colors:**

   ```wiki
   
   ```

   This will display the greeting in a light blue box with dark blue text.

10. **Combining Parameters:**

   ```wiki
   
   ```

   This demonstrates how to combine multiple parameters for a comprehensive greeting message.

Advanced Customization

While the parameters described above cover most common use cases, Template:Greeting can be further customized by modifying the template’s source code. This requires a basic understanding of MediaWiki markup and parser functions. You can access the template’s source code by clicking the "View source" tab on the Template:Greeting/doc page (or the template itself if documentation doesn't exist).

Here are some advanced customization possibilities:

• **Conditional Greetings:** Use `#if` statements to display different greetings based on user groups (e.g., administrators, registered users, anonymous users). This requires using the `{{#ifeq:Template:USERGROUPS...}}` construct. See Help:Conditional statements for more details.
• **Dynamic Content:** Integrate with other templates or extensions to display dynamic content based on user preferences or recent activity.
• **Custom Time Formats:** Use the `Template:Formattime` parser function to create highly customized time formats. Refer to Help:FormatTime for comprehensive documentation.
• **Error Handling:** Implement error handling to gracefully handle cases where a username is not provided or an image file is missing. Use `#ifexist` to check for file existence.
• **Localization:** Support multiple languages by using the Extension:Translate extension and defining translations for the greeting messages.

Troubleshooting Common Issues

• **Template Not Displaying:** Ensure that the template is correctly included on the page using the `` syntax. Check for typos in the template name.
• **Incorrect Username:** If the template is not displaying the correct username, verify that the user is logged in. If you are specifying a username manually, double-check the spelling.
• **Time Not Displaying Correctly:** Ensure that the server’s time is correctly configured. Verify the `time-format` parameter is set to the desired value ("12" or "24").
• **Image Not Displaying:** Make sure the image file exists in the wiki and that the filename is correct. Verify that the image syntax is correct (e.g., `File:Example.png`).
• **Styling Issues:** If the colors or other styling are not displaying as expected, double-check the HTML color codes and ensure they are valid.

Template Documentation

Every template should have comprehensive documentation. This is typically created on a subpage of the template, such as `Template:Greeting/doc`. The documentation should include:

• A clear description of the template’s purpose.
• A list of all available parameters, with detailed explanations and examples.
• Usage examples demonstrating common use cases.
• Troubleshooting tips for common issues.
• Links to related templates and documentation.

Relationship to Trading and Financial Analysis (for context, as requested)

While seemingly unrelated, the principles behind a well-designed template like Template:Greeting mirror best practices in financial analysis and trading. Just as a template provides a consistent and reliable output based on input parameters, successful trading relies on consistent application of strategies and analysis. Consider these analogies:

• **Parameters as Indicators:** The template’s parameters (username, greeting, time-format) are analogous to technical indicators like Moving Averages, MACD, or RSI. Each parameter modifies the output, just as each indicator provides a different perspective on market data.
• **Template Logic as Trading Strategy:** The logic within the template (determining the greeting based on time) resembles a trading strategy. A defined set of rules (time of day) leads to a specific action (greeting). Similar to a Breakout strategy, the template responds to a specific condition.
• **Customization as Risk Management:** The ability to customize the template reflects the need for risk management in trading. Adjusting parameters allows for tailoring the output to specific circumstances, just as adjusting position size or stop-loss orders manages risk.
• **Consistency as Backtesting:** The consistent output of the template is akin to the need for backtesting in trading. A reliable template ensures predictable results, just as backtesting validates the performance of a trading strategy.
• **Documentation as Trading Journal:** The documentation for the template is like a trading journal. It records the rules, parameters, and expected outcomes, allowing for review and improvement.
• **Market Trends & Template Updates:** Just as market trends change, requiring adjustments to trading strategies (e.g., shifting from a Trend Following to a Mean Reversion approach), templates may need updates to remain relevant and effective.
• **Volatility and Parameter Sensitivity:** The sensitivity of the template's output to parameter changes mirrors the concept of volatility in financial markets. Small changes in input can lead to significant differences in the outcome.
• **Correlation & Parameter Interdependence:** The interaction between different template parameters is similar to correlations between different assets.
• **Support and Resistance Levels & Template Limits:** The limitations of the template (e.g., the types of parameters it accepts) are like support and resistance levels in a market – boundaries that define the range of possible outcomes.
• **Fibonacci Retracements & Template Refinement:** Iteratively refining the template's code and parameters is analogous to using Fibonacci Retracements to identify potential price targets.
• **Elliot Wave Theory & Template Evolution:** The evolution of a template over time, with new features and improvements, can be compared to Elliot Wave Theory, where patterns repeat at different scales.
• **Candlestick Patterns & Template Visualizations:** The visual presentation of the greeting (colors, images) can be considered a form of visualization, similar to how Candlestick patterns provide a visual representation of price action.
• **Bollinger Bands & Template Boundaries:** The parameters of the template define its boundaries, similar to how Bollinger Bands define a range around a moving average.
• **Ichimoku Cloud & Template Conditions:** The conditional logic within the template (e.g., displaying different greetings based on user groups) is analogous to the complex conditions defined by the Ichimoku Cloud.
• **Stochastic Oscillator & Template Momentum:** The dynamic nature of the greeting (changing based on the time of day) can be compared to the momentum indicators like the Stochastic Oscillator.
• **Average True Range (ATR) & Template Variability:** The degree to which the template’s output can vary based on parameter changes is similar to the Average True Range (ATR), which measures market volatility.
• **Donchian Channels & Template Range:** The range of possible outputs from the template, defined by its parameters, can be compared to Donchian Channels, which define a price range over a specific period.
• **Parabolic SAR & Template Acceleration:** The ability to customize the template to respond quickly to changing conditions is analogous to the Parabolic SAR, which accelerates as prices move.
• **Volume Weighted Average Price (VWAP) & Template Importance:** The frequency with which the template is used can be compared to the Volume Weighted Average Price (VWAP), which reflects the importance of price levels based on trading volume.
• **Harmonic Patterns & Template Complexity:** The intricate logic and interdependencies within a highly customized template can be compared to the complexity of Harmonic Patterns.
• **Renko Charts & Template Simplification:** Simplifying the template to focus on essential parameters is analogous to using Renko Charts to filter out noise and focus on significant price movements.
• **Heikin Ashi Charts & Template Smoothing:** Using the template to smooth out variations in the user experience is similar to using Heikin Ashi Charts to smooth out price data.
• **Keltner Channels & Template Volatility:** The template’s responsiveness to changes in user data or system settings is similar to how Keltner Channels adapt to changing market volatility.
• **Pivot Points & Template Key Levels:** The key parameters of the template can be considered pivot points that define its behavior.

See Also

• Help:Templates
• Help:Variables
• Help:Magic words
• Help:Linking and referencing
• Help:Conditional statements
• Help:FormatTime
• Extension:Translate
• Template:Documentation
• MediaWiki syntax
• Help:Contents

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This would render as:

Hello, John! Welcome to our wiki.

• `{{{1}}}` represents the first parameter passed to the template.
• `{{{2}}}` would represent the second parameter, and so on.
• You can use named parameters for better readability (explained later).

This concept is vital for templates used in Forex Trading, where parameters can represent currency pairs, timeframes, or indicator settings.

Named Parameters

While numbered parameters work, they can be difficult to remember and maintain, especially for templates with many parameters. Named parameters offer a more descriptive and organized approach.

To define a named parameter, use the `{{{name=default value}}}` syntax. For example:

```wiki Hello, Wiki User! Your favorite color is blue. ```

In this example:

• `name` is a named parameter. If no value is provided when the template is called, it defaults to "Wiki User".
• `color` is another named parameter with a default value of "blue".

Calling the template like this:

```wiki

1. Template:Greeting

Template:Greeting is a fundamental and highly versatile template within the MediaWiki environment, designed to dynamically generate personalized greetings for users. This article provides a comprehensive guide to understanding, utilizing, and customizing this template, catering specifically to beginners. We will cover its core functionality, parameters, usage examples, advanced customization options, troubleshooting common issues, and its role within the broader context of wiki user engagement.

What is a Template?

Before diving into the specifics of Template:Greeting, it’s crucial to understand what a Template is in MediaWiki. Templates are pre-defined sets of wiki markup that can be inserted into pages to consistently display specific content. They act as reusable building blocks, preventing repetitive typing and ensuring uniformity across the wiki. Think of them as functions in programming – you provide certain inputs (parameters), and the template generates a pre-defined output. Using templates promotes efficient content management and a consistent user experience. They are essential for maintaining a professional and organized wiki. Related concepts include Help:Variables and Help:Magic words.

Core Functionality of Template:Greeting

Template:Greeting’s primary purpose is to display a customized greeting message to a user, often incorporating their username. It typically leverages MediaWiki's built-in parser functions to determine the current time and tailor the greeting accordingly (e.g., "Good morning," "Good afternoon," "Good evening"). Beyond a simple greeting, the template can also be extended to display welcome messages, recent activity notifications, or links to helpful resources for new users. It's a crucial element in fostering a welcoming and engaging community environment. Understanding Help:Linking and referencing is key to adding helpful links within the greeting.

Parameters

Template:Greeting utilizes several parameters to control its behavior and output. These parameters are specified when the template is included on a page using the `` syntax. Here's a breakdown of the common parameters:

• `username`: (Optional) The username to greet. If omitted, the template will automatically attempt to determine the current user’s username.
• `greeting`: (Optional) Allows you to override the default greeting message. This can be useful for special occasions or themed greetings.
• `time-format`: (Optional) Specifies the format for displaying the time. Defaults to a 12-hour format. Acceptable values include "12" or "24".
• `show-time`: (Optional) A boolean value (true/false) that determines whether the current time is displayed alongside the greeting. Defaults to "true".
• `custom-message`: (Optional) Allows you to add a completely custom message after the greeting. This parameter is perfect for displaying specific announcements or welcome information.
• `image`: (Optional) Specifies the name of an image to be displayed alongside the greeting. Use standard MediaWiki image syntax (e.g., `File:Example.png`).
• `link`: (Optional) A URL to link from the greeting. Useful for linking to a user's profile or a welcome page.
• `linktext`: (Optional) The text to display for the link specified by the `link` parameter.
• `bgcolor`: (Optional) Sets the background color of the greeting box. Accepts standard HTML color codes (e.g., `#f0f0f0`).
• `textcolor`: (Optional) Sets the text color of the greeting. Accepts standard HTML color codes.

Usage Examples

Here are several examples demonstrating how to use Template:Greeting with different parameters:

1. **Basic Usage (Automatic Username & Default Greeting):**

   ```wiki
   
   ```

   This will display a greeting like "Good morning, [Your Username]!" along with the current time.

2. **Specifying a Username:**

   ```wiki
   
   ```

   This will display "Good morning, ExampleUser!"

3. **Custom Greeting Message:**

   ```wiki
   
   ```

   This will display "Welcome back, [Your Username]!"

4. **Custom Greeting with Time Format:**

   ```wiki
   
   ```

   This will display "Greetings, [Your Username]!" followed by the current time in 24-hour format.

5. **Hiding the Time:**

   ```wiki
   
   ```

   This will display a greeting without the current time.

6. **Adding a Custom Message:**

   ```wiki
   
   ```

   This will display the greeting followed by "Don't forget to check out the Help:Contents!".

7. **Including an Image:**

   ```wiki
   
   ```

   This will display a small Wiki logo next to the greeting.

8. **Adding a Link:**

   ```wiki
   
   ```

   This will display the greeting followed by a link labeled "Visit Example.com" pointing to https://www.example.com.

9. **Customizing Colors:**

   ```wiki
   
   ```

   This will display the greeting in a light blue box with dark blue text.

10. **Combining Parameters:**

   ```wiki
   
   ```

   This demonstrates how to combine multiple parameters for a comprehensive greeting message.

Advanced Customization

While the parameters described above cover most common use cases, Template:Greeting can be further customized by modifying the template’s source code. This requires a basic understanding of MediaWiki markup and parser functions. You can access the template’s source code by clicking the "View source" tab on the Template:Greeting/doc page (or the template itself if documentation doesn't exist).

Here are some advanced customization possibilities:

• **Conditional Greetings:** Use `#if` statements to display different greetings based on user groups (e.g., administrators, registered users, anonymous users). This requires using the `{{#ifeq:Template:USERGROUPS...}}` construct. See Help:Conditional statements for more details.
• **Dynamic Content:** Integrate with other templates or extensions to display dynamic content based on user preferences or recent activity.
• **Custom Time Formats:** Use the `Template:Formattime` parser function to create highly customized time formats. Refer to Help:FormatTime for comprehensive documentation.
• **Error Handling:** Implement error handling to gracefully handle cases where a username is not provided or an image file is missing. Use `#ifexist` to check for file existence.
• **Localization:** Support multiple languages by using the Extension:Translate extension and defining translations for the greeting messages.

Troubleshooting Common Issues

• **Template Not Displaying:** Ensure that the template is correctly included on the page using the `` syntax. Check for typos in the template name.
• **Incorrect Username:** If the template is not displaying the correct username, verify that the user is logged in. If you are specifying a username manually, double-check the spelling.
• **Time Not Displaying Correctly:** Ensure that the server’s time is correctly configured. Verify the `time-format` parameter is set to the desired value ("12" or "24").
• **Image Not Displaying:** Make sure the image file exists in the wiki and that the filename is correct. Verify that the image syntax is correct (e.g., `File:Example.png`).
• **Styling Issues:** If the colors or other styling are not displaying as expected, double-check the HTML color codes and ensure they are valid.

Template Documentation

Every template should have comprehensive documentation. This is typically created on a subpage of the template, such as `Template:Greeting/doc`. The documentation should include:

• A clear description of the template’s purpose.
• A list of all available parameters, with detailed explanations and examples.
• Usage examples demonstrating common use cases.
• Troubleshooting tips for common issues.
• Links to related templates and documentation.

Relationship to Trading and Financial Analysis (for context, as requested)

While seemingly unrelated, the principles behind a well-designed template like Template:Greeting mirror best practices in financial analysis and trading. Just as a template provides a consistent and reliable output based on input parameters, successful trading relies on consistent application of strategies and analysis. Consider these analogies:

• **Parameters as Indicators:** The template’s parameters (username, greeting, time-format) are analogous to technical indicators like Moving Averages, MACD, or RSI. Each parameter modifies the output, just as each indicator provides a different perspective on market data.
• **Template Logic as Trading Strategy:** The logic within the template (determining the greeting based on time) resembles a trading strategy. A defined set of rules (time of day) leads to a specific action (greeting). Similar to a Breakout strategy, the template responds to a specific condition.
• **Customization as Risk Management:** The ability to customize the template reflects the need for risk management in trading. Adjusting parameters allows for tailoring the output to specific circumstances, just as adjusting position size or stop-loss orders manages risk.
• **Consistency as Backtesting:** The consistent output of the template is akin to the need for backtesting in trading. A reliable template ensures predictable results, just as backtesting validates the performance of a trading strategy.
• **Documentation as Trading Journal:** The documentation for the template is like a trading journal. It records the rules, parameters, and expected outcomes, allowing for review and improvement.
• **Market Trends & Template Updates:** Just as market trends change, requiring adjustments to trading strategies (e.g., shifting from a Trend Following to a Mean Reversion approach), templates may need updates to remain relevant and effective.
• **Volatility and Parameter Sensitivity:** The sensitivity of the template's output to parameter changes mirrors the concept of volatility in financial markets. Small changes in input can lead to significant differences in the outcome.
• **Correlation & Parameter Interdependence:** The interaction between different template parameters is similar to correlations between different assets.
• **Support and Resistance Levels & Template Limits:** The limitations of the template (e.g., the types of parameters it accepts) are like support and resistance levels in a market – boundaries that define the range of possible outcomes.
• **Fibonacci Retracements & Template Refinement:** Iteratively refining the template's code and parameters is analogous to using Fibonacci Retracements to identify potential price targets.
• **Elliot Wave Theory & Template Evolution:** The evolution of a template over time, with new features and improvements, can be compared to Elliot Wave Theory, where patterns repeat at different scales.
• **Candlestick Patterns & Template Visualizations:** The visual presentation of the greeting (colors, images) can be considered a form of visualization, similar to how Candlestick patterns provide a visual representation of price action.
• **Bollinger Bands & Template Boundaries:** The parameters of the template define its boundaries, similar to how Bollinger Bands define a range around a moving average.
• **Ichimoku Cloud & Template Conditions:** The conditional logic within the template (e.g., displaying different greetings based on user groups) is analogous to the complex conditions defined by the Ichimoku Cloud.
• **Stochastic Oscillator & Template Momentum:** The dynamic nature of the greeting (changing based on the time of day) can be compared to the momentum indicators like the Stochastic Oscillator.
• **Average True Range (ATR) & Template Variability:** The degree to which the template’s output can vary based on parameter changes is similar to the Average True Range (ATR), which measures market volatility.
• **Donchian Channels & Template Range:** The range of possible outputs from the template, defined by its parameters, can be compared to Donchian Channels, which define a price range over a specific period.
• **Parabolic SAR & Template Acceleration:** The ability to customize the template to respond quickly to changing conditions is analogous to the Parabolic SAR, which accelerates as prices move.
• **Volume Weighted Average Price (VWAP) & Template Importance:** The frequency with which the template is used can be compared to the Volume Weighted Average Price (VWAP), which reflects the importance of price levels based on trading volume.
• **Harmonic Patterns & Template Complexity:** The intricate logic and interdependencies within a highly customized template can be compared to the complexity of Harmonic Patterns.
• **Renko Charts & Template Simplification:** Simplifying the template to focus on essential parameters is analogous to using Renko Charts to filter out noise and focus on significant price movements.
• **Heikin Ashi Charts & Template Smoothing:** Using the template to smooth out variations in the user experience is similar to using Heikin Ashi Charts to smooth out price data.
• **Keltner Channels & Template Volatility:** The template’s responsiveness to changes in user data or system settings is similar to how Keltner Channels adapt to changing market volatility.
• **Pivot Points & Template Key Levels:** The key parameters of the template can be considered pivot points that define its behavior.

See Also

• Help:Templates
• Help:Variables
• Help:Magic words
• Help:Linking and referencing
• Help:Conditional statements
• Help:FormatTime
• Extension:Translate
• Template:Documentation
• MediaWiki syntax
• Help:Contents

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Subscribe to our Telegram channel @strategybin to receive: ✓ Daily trading signals ✓ Exclusive strategy analysis ✓ Market trend alerts ✓ Educational materials for beginners ```

would render as:

Hello, Alice! Your favorite color is green.

Calling it simply as:

```wiki

1. Template:Greeting

Template:Greeting is a fundamental and highly versatile template within the MediaWiki environment, designed to dynamically generate personalized greetings for users. This article provides a comprehensive guide to understanding, utilizing, and customizing this template, catering specifically to beginners. We will cover its core functionality, parameters, usage examples, advanced customization options, troubleshooting common issues, and its role within the broader context of wiki user engagement.

What is a Template?

Before diving into the specifics of Template:Greeting, it’s crucial to understand what a Template is in MediaWiki. Templates are pre-defined sets of wiki markup that can be inserted into pages to consistently display specific content. They act as reusable building blocks, preventing repetitive typing and ensuring uniformity across the wiki. Think of them as functions in programming – you provide certain inputs (parameters), and the template generates a pre-defined output. Using templates promotes efficient content management and a consistent user experience. They are essential for maintaining a professional and organized wiki. Related concepts include Help:Variables and Help:Magic words.

Core Functionality of Template:Greeting

Template:Greeting’s primary purpose is to display a customized greeting message to a user, often incorporating their username. It typically leverages MediaWiki's built-in parser functions to determine the current time and tailor the greeting accordingly (e.g., "Good morning," "Good afternoon," "Good evening"). Beyond a simple greeting, the template can also be extended to display welcome messages, recent activity notifications, or links to helpful resources for new users. It's a crucial element in fostering a welcoming and engaging community environment. Understanding Help:Linking and referencing is key to adding helpful links within the greeting.

Parameters

Template:Greeting utilizes several parameters to control its behavior and output. These parameters are specified when the template is included on a page using the `` syntax. Here's a breakdown of the common parameters:

• `username`: (Optional) The username to greet. If omitted, the template will automatically attempt to determine the current user’s username.
• `greeting`: (Optional) Allows you to override the default greeting message. This can be useful for special occasions or themed greetings.
• `time-format`: (Optional) Specifies the format for displaying the time. Defaults to a 12-hour format. Acceptable values include "12" or "24".
• `show-time`: (Optional) A boolean value (true/false) that determines whether the current time is displayed alongside the greeting. Defaults to "true".
• `custom-message`: (Optional) Allows you to add a completely custom message after the greeting. This parameter is perfect for displaying specific announcements or welcome information.
• `image`: (Optional) Specifies the name of an image to be displayed alongside the greeting. Use standard MediaWiki image syntax (e.g., `File:Example.png`).
• `link`: (Optional) A URL to link from the greeting. Useful for linking to a user's profile or a welcome page.
• `linktext`: (Optional) The text to display for the link specified by the `link` parameter.
• `bgcolor`: (Optional) Sets the background color of the greeting box. Accepts standard HTML color codes (e.g., `#f0f0f0`).
• `textcolor`: (Optional) Sets the text color of the greeting. Accepts standard HTML color codes.

Usage Examples

Here are several examples demonstrating how to use Template:Greeting with different parameters:

1. **Basic Usage (Automatic Username & Default Greeting):**

   ```wiki
   
   ```

   This will display a greeting like "Good morning, [Your Username]!" along with the current time.

2. **Specifying a Username:**

   ```wiki
   
   ```

   This will display "Good morning, ExampleUser!"

3. **Custom Greeting Message:**

   ```wiki
   
   ```

   This will display "Welcome back, [Your Username]!"

4. **Custom Greeting with Time Format:**

   ```wiki
   
   ```

   This will display "Greetings, [Your Username]!" followed by the current time in 24-hour format.

5. **Hiding the Time:**

   ```wiki
   
   ```

   This will display a greeting without the current time.

6. **Adding a Custom Message:**

   ```wiki
   
   ```

   This will display the greeting followed by "Don't forget to check out the Help:Contents!".

7. **Including an Image:**

   ```wiki
   
   ```

   This will display a small Wiki logo next to the greeting.

8. **Adding a Link:**

   ```wiki
   
   ```

   This will display the greeting followed by a link labeled "Visit Example.com" pointing to https://www.example.com.

9. **Customizing Colors:**

   ```wiki
   
   ```

   This will display the greeting in a light blue box with dark blue text.

10. **Combining Parameters:**

   ```wiki
   
   ```

   This demonstrates how to combine multiple parameters for a comprehensive greeting message.

Advanced Customization

While the parameters described above cover most common use cases, Template:Greeting can be further customized by modifying the template’s source code. This requires a basic understanding of MediaWiki markup and parser functions. You can access the template’s source code by clicking the "View source" tab on the Template:Greeting/doc page (or the template itself if documentation doesn't exist).

Here are some advanced customization possibilities:

• **Conditional Greetings:** Use `#if` statements to display different greetings based on user groups (e.g., administrators, registered users, anonymous users). This requires using the `{{#ifeq:Template:USERGROUPS...}}` construct. See Help:Conditional statements for more details.
• **Dynamic Content:** Integrate with other templates or extensions to display dynamic content based on user preferences or recent activity.
• **Custom Time Formats:** Use the `Template:Formattime` parser function to create highly customized time formats. Refer to Help:FormatTime for comprehensive documentation.
• **Error Handling:** Implement error handling to gracefully handle cases where a username is not provided or an image file is missing. Use `#ifexist` to check for file existence.
• **Localization:** Support multiple languages by using the Extension:Translate extension and defining translations for the greeting messages.

Troubleshooting Common Issues

• **Template Not Displaying:** Ensure that the template is correctly included on the page using the `` syntax. Check for typos in the template name.
• **Incorrect Username:** If the template is not displaying the correct username, verify that the user is logged in. If you are specifying a username manually, double-check the spelling.
• **Time Not Displaying Correctly:** Ensure that the server’s time is correctly configured. Verify the `time-format` parameter is set to the desired value ("12" or "24").
• **Image Not Displaying:** Make sure the image file exists in the wiki and that the filename is correct. Verify that the image syntax is correct (e.g., `File:Example.png`).
• **Styling Issues:** If the colors or other styling are not displaying as expected, double-check the HTML color codes and ensure they are valid.

Template Documentation

Every template should have comprehensive documentation. This is typically created on a subpage of the template, such as `Template:Greeting/doc`. The documentation should include:

• A clear description of the template’s purpose.
• A list of all available parameters, with detailed explanations and examples.
• Usage examples demonstrating common use cases.
• Troubleshooting tips for common issues.
• Links to related templates and documentation.

Relationship to Trading and Financial Analysis (for context, as requested)

While seemingly unrelated, the principles behind a well-designed template like Template:Greeting mirror best practices in financial analysis and trading. Just as a template provides a consistent and reliable output based on input parameters, successful trading relies on consistent application of strategies and analysis. Consider these analogies:

• **Parameters as Indicators:** The template’s parameters (username, greeting, time-format) are analogous to technical indicators like Moving Averages, MACD, or RSI. Each parameter modifies the output, just as each indicator provides a different perspective on market data.
• **Template Logic as Trading Strategy:** The logic within the template (determining the greeting based on time) resembles a trading strategy. A defined set of rules (time of day) leads to a specific action (greeting). Similar to a Breakout strategy, the template responds to a specific condition.
• **Customization as Risk Management:** The ability to customize the template reflects the need for risk management in trading. Adjusting parameters allows for tailoring the output to specific circumstances, just as adjusting position size or stop-loss orders manages risk.
• **Consistency as Backtesting:** The consistent output of the template is akin to the need for backtesting in trading. A reliable template ensures predictable results, just as backtesting validates the performance of a trading strategy.
• **Documentation as Trading Journal:** The documentation for the template is like a trading journal. It records the rules, parameters, and expected outcomes, allowing for review and improvement.
• **Market Trends & Template Updates:** Just as market trends change, requiring adjustments to trading strategies (e.g., shifting from a Trend Following to a Mean Reversion approach), templates may need updates to remain relevant and effective.
• **Volatility and Parameter Sensitivity:** The sensitivity of the template's output to parameter changes mirrors the concept of volatility in financial markets. Small changes in input can lead to significant differences in the outcome.
• **Correlation & Parameter Interdependence:** The interaction between different template parameters is similar to correlations between different assets.
• **Support and Resistance Levels & Template Limits:** The limitations of the template (e.g., the types of parameters it accepts) are like support and resistance levels in a market – boundaries that define the range of possible outcomes.
• **Fibonacci Retracements & Template Refinement:** Iteratively refining the template's code and parameters is analogous to using Fibonacci Retracements to identify potential price targets.
• **Elliot Wave Theory & Template Evolution:** The evolution of a template over time, with new features and improvements, can be compared to Elliot Wave Theory, where patterns repeat at different scales.
• **Candlestick Patterns & Template Visualizations:** The visual presentation of the greeting (colors, images) can be considered a form of visualization, similar to how Candlestick patterns provide a visual representation of price action.
• **Bollinger Bands & Template Boundaries:** The parameters of the template define its boundaries, similar to how Bollinger Bands define a range around a moving average.
• **Ichimoku Cloud & Template Conditions:** The conditional logic within the template (e.g., displaying different greetings based on user groups) is analogous to the complex conditions defined by the Ichimoku Cloud.
• **Stochastic Oscillator & Template Momentum:** The dynamic nature of the greeting (changing based on the time of day) can be compared to the momentum indicators like the Stochastic Oscillator.
• **Average True Range (ATR) & Template Variability:** The degree to which the template’s output can vary based on parameter changes is similar to the Average True Range (ATR), which measures market volatility.
• **Donchian Channels & Template Range:** The range of possible outputs from the template, defined by its parameters, can be compared to Donchian Channels, which define a price range over a specific period.
• **Parabolic SAR & Template Acceleration:** The ability to customize the template to respond quickly to changing conditions is analogous to the Parabolic SAR, which accelerates as prices move.
• **Volume Weighted Average Price (VWAP) & Template Importance:** The frequency with which the template is used can be compared to the Volume Weighted Average Price (VWAP), which reflects the importance of price levels based on trading volume.
• **Harmonic Patterns & Template Complexity:** The intricate logic and interdependencies within a highly customized template can be compared to the complexity of Harmonic Patterns.
• **Renko Charts & Template Simplification:** Simplifying the template to focus on essential parameters is analogous to using Renko Charts to filter out noise and focus on significant price movements.
• **Heikin Ashi Charts & Template Smoothing:** Using the template to smooth out variations in the user experience is similar to using Heikin Ashi Charts to smooth out price data.
• **Keltner Channels & Template Volatility:** The template’s responsiveness to changes in user data or system settings is similar to how Keltner Channels adapt to changing market volatility.
• **Pivot Points & Template Key Levels:** The key parameters of the template can be considered pivot points that define its behavior.

See Also

• Help:Templates
• Help:Variables
• Help:Magic words
• Help:Linking and referencing
• Help:Conditional statements
• Help:FormatTime
• Extension:Translate
• Template:Documentation
• MediaWiki syntax
• Help:Contents

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Subscribe to our Telegram channel @strategybin to receive: ✓ Daily trading signals ✓ Exclusive strategy analysis ✓ Market trend alerts ✓ Educational materials for beginners ```

would render as:

Hello, Wiki User! Your favorite color is blue.

Named parameters are particularly useful for complex templates, such as those used to display Candlestick Patterns or Chart Patterns, where you need to specify multiple attributes.

Default Values

As demonstrated in the named parameter example, providing default values is crucial. It ensures that the template functions correctly even when a parameter is not explicitly provided. Default values make your templates more robust and user-friendly. Always consider what a reasonable default value would be for each parameter. In the context of Trading Psychology, a default value could represent a conservative risk tolerance.

Conditional Statements

Templates can also incorporate basic conditional logic using the `#if` parser function. This allows you to display different content based on the value of a parameter.

The syntax is as follows:

```wiki

1. if:{{{condition}}}|

 Content to display if the condition is true.

1. else|

 Content to display if the condition is false.

1. endif

```

For example, let's create a template that displays a warning message if a stock price is below a certain threshold:

```wiki

1. if:{Template:Price<50}|

 Warning: The stock price is below $50.

1. else|

 The stock price is currently $ {{{price}}}.

1. endif

```

Calling the template with `Template:StockPrice` would render:

Warning: The stock price is below $50.

Calling it with `Template:StockPrice` would render:

The stock price is currently $ 60.

Conditional statements are extremely valuable for templates that need to adapt to changing market conditions or user preferences, such as templates displaying Support and Resistance Levels.

Template Loops with #loop

For more complex scenarios, you can use the `#loop` parser function to iterate over a list of items. This is particularly useful for creating tables or lists dynamically. The `#loop` function requires a bit more understanding and is beyond the scope of a basic beginner guide, but it’s essential for advanced template creation. It’s often used for displaying data from Fundamental Analysis.

Common Pitfalls and Best Practices

• **Category Usage:** Always categorize your templates using the `` category (or a more specific subcategory).
• **Documentation:** Document your templates! Explain what they do, what parameters they accept, and how to use them. Use the `/doc` subpage for documentation (e.g., `Template:Example/doc`).
• **Testing:** Thoroughly test your templates before deploying them to ensure they work as expected.
• **Avoid Excessive Complexity:** Keep your templates as simple as possible. Complex templates can be difficult to maintain and debug. Consider breaking down complex logic into multiple smaller templates.
• **Use Named Parameters:** Favor named parameters over numbered parameters for improved readability and maintainability.
• **Use Default Values:** Always provide default values for parameters to make your templates more robust.
• **Avoid Direct Editing of Templates on Live Pages:** Always test changes in a sandbox environment before applying them to live pages.
• **Consider Transclusion Cost:** Extensive use of complex templates can impact page loading times. Optimize your templates for performance. This is important when dealing with pages displaying real-time Tick Data.
• **Be Mindful of Recursion:** Avoid creating templates that call themselves directly or indirectly, as this can lead to infinite loops.

Advanced Techniques (Brief Overview)

• **TemplateData:** TemplateData is a JSON-based format that defines the parameters and documentation for a template, enabling better editor support.
• **Modules:** Lua modules allow you to write more complex template logic and perform calculations that are not possible with the standard parser functions.
• **Parser Hooks:** Parser hooks allow you to extend the MediaWiki parser with custom functions.

These advanced techniques are beyond the scope of this introductory article but are worth exploring as you become more proficient with templates. They are often used for creating highly customized templates for specific applications, like Algorithmic Trading platforms.

Template:Name – A Specific Example

Let's create a simple "Name" template to demonstrate the concepts discussed. This template will display a user's name in a formatted manner.

Create a page titled "Template:Name" with the following content:

```wiki

Usage

This template displays a user's name in bold.

Syntax:

Example:

Template

Anonymous ```

Now, on any page, you can use the template like this:

```wiki My name is: ```

This will render as:

My name is: Bob

If you call the template without a name:

```wiki My name is: ```

It will render as:

My name is: Anonymous

This simple example illustrates the core principles of template creation and usage. You can expand upon this basic template to create more complex and sophisticated content snippets. This template, while simple, demonstrates the foundational principles applicable to more complex templates used for displaying Fibonacci Retracements or MACD Indicators.

Further Resources

• Help:Templates
• Help:TemplateData
• Help:Lua scripting
• MediaWiki Developer Documentation
• Wikipedia's Template Article
• Tutorialspoint MediaWiki Templates

This article provides a solid foundation for understanding and using templates in MediaWiki. By practicing and experimenting with the concepts discussed, you'll be well on your way to mastering this powerful feature and contributing effectively to your wiki. Remember to always refer to the official MediaWiki documentation for the most up-to-date information. Templates are essential for maintaining a consistent and organized wiki, especially when dealing with dynamic information related to Day Trading, Swing Trading, and Long-Term Investing.

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Current time: Template:Current time

</body> </html> ```

3. **Render the template:** In your Python code, use the `render_template()` function to render the template:

```python from flask import render_template, datetime

@app.route("/") def index():

   name = "John Doe"
   current_time = datetime.datetime.now()
   return render_template("index.html", name=name, current_time=current_time)

```

4. **Explanation:**

  * `render_template("index.html", name=name, current_time=current_time)`: Renders the `index.html` template and passes the `name` and `current_time` variables to the template.
  * `

1. Template:Name

Template:Name is a fundamental building block in MediaWiki, allowing you to create reusable content snippets that can be dynamically inserted into multiple pages. This article will provide a comprehensive guide for beginners on understanding, creating, and using templates, specifically focusing on the core concepts applicable to MediaWiki 1.40 and beyond. We'll cover everything from basic syntax to more advanced techniques, including parameters, default values, conditional statements, and common pitfalls to avoid. This will empower you to streamline content creation, ensure consistency across your wiki, and enhance the overall maintainability of your site. The concepts detailed here are crucial for anyone looking to contribute significantly to a MediaWiki-based platform, especially those involved in topics like Technical Analysis, Trading Strategies, and Market Trends.

What are Templates?

Imagine you frequently need to include the same information on multiple pages – perhaps a standard disclaimer, a navigation box, or a formatted table of Financial Ratios. Manually copying and pasting this information is time-consuming and prone to errors. Templates solve this problem.

A template is essentially a page that contains content designed to be *transcluded* – that is, inserted into other pages without actually moving the template's content. When a template is transcluded, the receiving page displays the template’s content as if it were directly written there. However, any changes made to the template are automatically reflected on all pages where it is used.

This is incredibly powerful for maintaining consistency and simplifying updates. For instance, if a legal disclaimer changes, you only need to edit the template once, and the change will propagate to every page that includes it. This is particularly useful for rapidly changing information like Volatility Indicators or Economic Calendars.

Basic Template Syntax

Templates reside in the Template: namespace. To create a template, simply create a new page starting with "Template:". For example, to create a template named "Example", you would create a page titled "Template:Example".

The core of template syntax revolves around the `Template:...` construct. This is how you *call* or *invoke* a template on a page. Within the double curly braces, you specify the template name.

For example, if you created a template named "Template:Greeting" with the following content:

```wiki Hello, Wiki User! Welcome to our wiki. ```

You would include this greeting on another page by writing:

```wiki

1. Template:Greeting

Template:Greeting is a fundamental and highly versatile template within the MediaWiki environment, designed to dynamically generate personalized greetings for users. This article provides a comprehensive guide to understanding, utilizing, and customizing this template, catering specifically to beginners. We will cover its core functionality, parameters, usage examples, advanced customization options, troubleshooting common issues, and its role within the broader context of wiki user engagement.

What is a Template?

Before diving into the specifics of Template:Greeting, it’s crucial to understand what a Template is in MediaWiki. Templates are pre-defined sets of wiki markup that can be inserted into pages to consistently display specific content. They act as reusable building blocks, preventing repetitive typing and ensuring uniformity across the wiki. Think of them as functions in programming – you provide certain inputs (parameters), and the template generates a pre-defined output. Using templates promotes efficient content management and a consistent user experience. They are essential for maintaining a professional and organized wiki. Related concepts include Help:Variables and Help:Magic words.

Core Functionality of Template:Greeting

Template:Greeting’s primary purpose is to display a customized greeting message to a user, often incorporating their username. It typically leverages MediaWiki's built-in parser functions to determine the current time and tailor the greeting accordingly (e.g., "Good morning," "Good afternoon," "Good evening"). Beyond a simple greeting, the template can also be extended to display welcome messages, recent activity notifications, or links to helpful resources for new users. It's a crucial element in fostering a welcoming and engaging community environment. Understanding Help:Linking and referencing is key to adding helpful links within the greeting.

Parameters

Template:Greeting utilizes several parameters to control its behavior and output. These parameters are specified when the template is included on a page using the `` syntax. Here's a breakdown of the common parameters:

• `username`: (Optional) The username to greet. If omitted, the template will automatically attempt to determine the current user’s username.
• `greeting`: (Optional) Allows you to override the default greeting message. This can be useful for special occasions or themed greetings.
• `time-format`: (Optional) Specifies the format for displaying the time. Defaults to a 12-hour format. Acceptable values include "12" or "24".
• `show-time`: (Optional) A boolean value (true/false) that determines whether the current time is displayed alongside the greeting. Defaults to "true".
• `custom-message`: (Optional) Allows you to add a completely custom message after the greeting. This parameter is perfect for displaying specific announcements or welcome information.
• `image`: (Optional) Specifies the name of an image to be displayed alongside the greeting. Use standard MediaWiki image syntax (e.g., `File:Example.png`).
• `link`: (Optional) A URL to link from the greeting. Useful for linking to a user's profile or a welcome page.
• `linktext`: (Optional) The text to display for the link specified by the `link` parameter.
• `bgcolor`: (Optional) Sets the background color of the greeting box. Accepts standard HTML color codes (e.g., `#f0f0f0`).
• `textcolor`: (Optional) Sets the text color of the greeting. Accepts standard HTML color codes.

Usage Examples

Here are several examples demonstrating how to use Template:Greeting with different parameters:

1. **Basic Usage (Automatic Username & Default Greeting):**

   ```wiki
   
   ```

   This will display a greeting like "Good morning, [Your Username]!" along with the current time.

2. **Specifying a Username:**

   ```wiki
   
   ```

   This will display "Good morning, ExampleUser!"

3. **Custom Greeting Message:**

   ```wiki
   
   ```

   This will display "Welcome back, [Your Username]!"

4. **Custom Greeting with Time Format:**

   ```wiki
   
   ```

   This will display "Greetings, [Your Username]!" followed by the current time in 24-hour format.

5. **Hiding the Time:**

   ```wiki
   
   ```

   This will display a greeting without the current time.

6. **Adding a Custom Message:**

   ```wiki
   
   ```

   This will display the greeting followed by "Don't forget to check out the Help:Contents!".

7. **Including an Image:**

   ```wiki
   
   ```

   This will display a small Wiki logo next to the greeting.

8. **Adding a Link:**

   ```wiki
   
   ```

   This will display the greeting followed by a link labeled "Visit Example.com" pointing to https://www.example.com.

9. **Customizing Colors:**

   ```wiki
   
   ```

   This will display the greeting in a light blue box with dark blue text.

10. **Combining Parameters:**

   ```wiki
   
   ```

   This demonstrates how to combine multiple parameters for a comprehensive greeting message.

Advanced Customization

While the parameters described above cover most common use cases, Template:Greeting can be further customized by modifying the template’s source code. This requires a basic understanding of MediaWiki markup and parser functions. You can access the template’s source code by clicking the "View source" tab on the Template:Greeting/doc page (or the template itself if documentation doesn't exist).

Here are some advanced customization possibilities:

• **Conditional Greetings:** Use `#if` statements to display different greetings based on user groups (e.g., administrators, registered users, anonymous users). This requires using the `{{#ifeq:Template:USERGROUPS...}}` construct. See Help:Conditional statements for more details.
• **Dynamic Content:** Integrate with other templates or extensions to display dynamic content based on user preferences or recent activity.
• **Custom Time Formats:** Use the `Template:Formattime` parser function to create highly customized time formats. Refer to Help:FormatTime for comprehensive documentation.
• **Error Handling:** Implement error handling to gracefully handle cases where a username is not provided or an image file is missing. Use `#ifexist` to check for file existence.
• **Localization:** Support multiple languages by using the Extension:Translate extension and defining translations for the greeting messages.

Troubleshooting Common Issues

• **Template Not Displaying:** Ensure that the template is correctly included on the page using the `` syntax. Check for typos in the template name.
• **Incorrect Username:** If the template is not displaying the correct username, verify that the user is logged in. If you are specifying a username manually, double-check the spelling.
• **Time Not Displaying Correctly:** Ensure that the server’s time is correctly configured. Verify the `time-format` parameter is set to the desired value ("12" or "24").
• **Image Not Displaying:** Make sure the image file exists in the wiki and that the filename is correct. Verify that the image syntax is correct (e.g., `File:Example.png`).
• **Styling Issues:** If the colors or other styling are not displaying as expected, double-check the HTML color codes and ensure they are valid.

Template Documentation

Every template should have comprehensive documentation. This is typically created on a subpage of the template, such as `Template:Greeting/doc`. The documentation should include:

• A clear description of the template’s purpose.
• A list of all available parameters, with detailed explanations and examples.
• Usage examples demonstrating common use cases.
• Troubleshooting tips for common issues.
• Links to related templates and documentation.

Relationship to Trading and Financial Analysis (for context, as requested)

While seemingly unrelated, the principles behind a well-designed template like Template:Greeting mirror best practices in financial analysis and trading. Just as a template provides a consistent and reliable output based on input parameters, successful trading relies on consistent application of strategies and analysis. Consider these analogies:

• **Parameters as Indicators:** The template’s parameters (username, greeting, time-format) are analogous to technical indicators like Moving Averages, MACD, or RSI. Each parameter modifies the output, just as each indicator provides a different perspective on market data.
• **Template Logic as Trading Strategy:** The logic within the template (determining the greeting based on time) resembles a trading strategy. A defined set of rules (time of day) leads to a specific action (greeting). Similar to a Breakout strategy, the template responds to a specific condition.
• **Customization as Risk Management:** The ability to customize the template reflects the need for risk management in trading. Adjusting parameters allows for tailoring the output to specific circumstances, just as adjusting position size or stop-loss orders manages risk.
• **Consistency as Backtesting:** The consistent output of the template is akin to the need for backtesting in trading. A reliable template ensures predictable results, just as backtesting validates the performance of a trading strategy.
• **Documentation as Trading Journal:** The documentation for the template is like a trading journal. It records the rules, parameters, and expected outcomes, allowing for review and improvement.
• **Market Trends & Template Updates:** Just as market trends change, requiring adjustments to trading strategies (e.g., shifting from a Trend Following to a Mean Reversion approach), templates may need updates to remain relevant and effective.
• **Volatility and Parameter Sensitivity:** The sensitivity of the template's output to parameter changes mirrors the concept of volatility in financial markets. Small changes in input can lead to significant differences in the outcome.
• **Correlation & Parameter Interdependence:** The interaction between different template parameters is similar to correlations between different assets.
• **Support and Resistance Levels & Template Limits:** The limitations of the template (e.g., the types of parameters it accepts) are like support and resistance levels in a market – boundaries that define the range of possible outcomes.
• **Fibonacci Retracements & Template Refinement:** Iteratively refining the template's code and parameters is analogous to using Fibonacci Retracements to identify potential price targets.
• **Elliot Wave Theory & Template Evolution:** The evolution of a template over time, with new features and improvements, can be compared to Elliot Wave Theory, where patterns repeat at different scales.
• **Candlestick Patterns & Template Visualizations:** The visual presentation of the greeting (colors, images) can be considered a form of visualization, similar to how Candlestick patterns provide a visual representation of price action.
• **Bollinger Bands & Template Boundaries:** The parameters of the template define its boundaries, similar to how Bollinger Bands define a range around a moving average.
• **Ichimoku Cloud & Template Conditions:** The conditional logic within the template (e.g., displaying different greetings based on user groups) is analogous to the complex conditions defined by the Ichimoku Cloud.
• **Stochastic Oscillator & Template Momentum:** The dynamic nature of the greeting (changing based on the time of day) can be compared to the momentum indicators like the Stochastic Oscillator.
• **Average True Range (ATR) & Template Variability:** The degree to which the template’s output can vary based on parameter changes is similar to the Average True Range (ATR), which measures market volatility.
• **Donchian Channels & Template Range:** The range of possible outputs from the template, defined by its parameters, can be compared to Donchian Channels, which define a price range over a specific period.
• **Parabolic SAR & Template Acceleration:** The ability to customize the template to respond quickly to changing conditions is analogous to the Parabolic SAR, which accelerates as prices move.
• **Volume Weighted Average Price (VWAP) & Template Importance:** The frequency with which the template is used can be compared to the Volume Weighted Average Price (VWAP), which reflects the importance of price levels based on trading volume.
• **Harmonic Patterns & Template Complexity:** The intricate logic and interdependencies within a highly customized template can be compared to the complexity of Harmonic Patterns.
• **Renko Charts & Template Simplification:** Simplifying the template to focus on essential parameters is analogous to using Renko Charts to filter out noise and focus on significant price movements.
• **Heikin Ashi Charts & Template Smoothing:** Using the template to smooth out variations in the user experience is similar to using Heikin Ashi Charts to smooth out price data.
• **Keltner Channels & Template Volatility:** The template’s responsiveness to changes in user data or system settings is similar to how Keltner Channels adapt to changing market volatility.
• **Pivot Points & Template Key Levels:** The key parameters of the template can be considered pivot points that define its behavior.

See Also

• Help:Templates
• Help:Variables
• Help:Magic words
• Help:Linking and referencing
• Help:Conditional statements
• Help:FormatTime
• Extension:Translate
• Template:Documentation
• MediaWiki syntax
• Help:Contents

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This would render as:

Hello, Wiki User! Welcome to our wiki.

Parameters: Making Templates Dynamic

The real power of templates comes from their ability to accept *parameters*. Parameters allow you to pass data to the template, making its output dynamic and adaptable to different situations. Parameters are specified within the template call, separated by an equals sign (=).

Let's modify our "Greeting" template to accept a name as a parameter:

```wiki Hello, {{{1}}}! Welcome to our wiki. ```

Now, when you call the template, you can specify the name:

```wiki

1. Template:Greeting

Template:Greeting is a fundamental and highly versatile template within the MediaWiki environment, designed to dynamically generate personalized greetings for users. This article provides a comprehensive guide to understanding, utilizing, and customizing this template, catering specifically to beginners. We will cover its core functionality, parameters, usage examples, advanced customization options, troubleshooting common issues, and its role within the broader context of wiki user engagement.

What is a Template?

Before diving into the specifics of Template:Greeting, it’s crucial to understand what a Template is in MediaWiki. Templates are pre-defined sets of wiki markup that can be inserted into pages to consistently display specific content. They act as reusable building blocks, preventing repetitive typing and ensuring uniformity across the wiki. Think of them as functions in programming – you provide certain inputs (parameters), and the template generates a pre-defined output. Using templates promotes efficient content management and a consistent user experience. They are essential for maintaining a professional and organized wiki. Related concepts include Help:Variables and Help:Magic words.

Core Functionality of Template:Greeting

Template:Greeting’s primary purpose is to display a customized greeting message to a user, often incorporating their username. It typically leverages MediaWiki's built-in parser functions to determine the current time and tailor the greeting accordingly (e.g., "Good morning," "Good afternoon," "Good evening"). Beyond a simple greeting, the template can also be extended to display welcome messages, recent activity notifications, or links to helpful resources for new users. It's a crucial element in fostering a welcoming and engaging community environment. Understanding Help:Linking and referencing is key to adding helpful links within the greeting.

Parameters

Template:Greeting utilizes several parameters to control its behavior and output. These parameters are specified when the template is included on a page using the `` syntax. Here's a breakdown of the common parameters:

• `username`: (Optional) The username to greet. If omitted, the template will automatically attempt to determine the current user’s username.
• `greeting`: (Optional) Allows you to override the default greeting message. This can be useful for special occasions or themed greetings.
• `time-format`: (Optional) Specifies the format for displaying the time. Defaults to a 12-hour format. Acceptable values include "12" or "24".
• `show-time`: (Optional) A boolean value (true/false) that determines whether the current time is displayed alongside the greeting. Defaults to "true".
• `custom-message`: (Optional) Allows you to add a completely custom message after the greeting. This parameter is perfect for displaying specific announcements or welcome information.
• `image`: (Optional) Specifies the name of an image to be displayed alongside the greeting. Use standard MediaWiki image syntax (e.g., `File:Example.png`).
• `link`: (Optional) A URL to link from the greeting. Useful for linking to a user's profile or a welcome page.
• `linktext`: (Optional) The text to display for the link specified by the `link` parameter.
• `bgcolor`: (Optional) Sets the background color of the greeting box. Accepts standard HTML color codes (e.g., `#f0f0f0`).
• `textcolor`: (Optional) Sets the text color of the greeting. Accepts standard HTML color codes.

Usage Examples

Here are several examples demonstrating how to use Template:Greeting with different parameters:

1. **Basic Usage (Automatic Username & Default Greeting):**

   ```wiki
   
   ```

   This will display a greeting like "Good morning, [Your Username]!" along with the current time.

2. **Specifying a Username:**

   ```wiki
   
   ```

   This will display "Good morning, ExampleUser!"

3. **Custom Greeting Message:**

   ```wiki
   
   ```

   This will display "Welcome back, [Your Username]!"

4. **Custom Greeting with Time Format:**

   ```wiki
   
   ```

   This will display "Greetings, [Your Username]!" followed by the current time in 24-hour format.

5. **Hiding the Time:**

   ```wiki
   
   ```

   This will display a greeting without the current time.

6. **Adding a Custom Message:**

   ```wiki
   
   ```

   This will display the greeting followed by "Don't forget to check out the Help:Contents!".

7. **Including an Image:**

   ```wiki
   
   ```

   This will display a small Wiki logo next to the greeting.

8. **Adding a Link:**

   ```wiki
   
   ```

   This will display the greeting followed by a link labeled "Visit Example.com" pointing to https://www.example.com.

9. **Customizing Colors:**

   ```wiki
   
   ```

   This will display the greeting in a light blue box with dark blue text.

10. **Combining Parameters:**

   ```wiki
   
   ```

   This demonstrates how to combine multiple parameters for a comprehensive greeting message.

Advanced Customization

While the parameters described above cover most common use cases, Template:Greeting can be further customized by modifying the template’s source code. This requires a basic understanding of MediaWiki markup and parser functions. You can access the template’s source code by clicking the "View source" tab on the Template:Greeting/doc page (or the template itself if documentation doesn't exist).

Here are some advanced customization possibilities:

• **Conditional Greetings:** Use `#if` statements to display different greetings based on user groups (e.g., administrators, registered users, anonymous users). This requires using the `{{#ifeq:Template:USERGROUPS...}}` construct. See Help:Conditional statements for more details.
• **Dynamic Content:** Integrate with other templates or extensions to display dynamic content based on user preferences or recent activity.
• **Custom Time Formats:** Use the `Template:Formattime` parser function to create highly customized time formats. Refer to Help:FormatTime for comprehensive documentation.
• **Error Handling:** Implement error handling to gracefully handle cases where a username is not provided or an image file is missing. Use `#ifexist` to check for file existence.
• **Localization:** Support multiple languages by using the Extension:Translate extension and defining translations for the greeting messages.

Troubleshooting Common Issues

• **Template Not Displaying:** Ensure that the template is correctly included on the page using the `` syntax. Check for typos in the template name.
• **Incorrect Username:** If the template is not displaying the correct username, verify that the user is logged in. If you are specifying a username manually, double-check the spelling.
• **Time Not Displaying Correctly:** Ensure that the server’s time is correctly configured. Verify the `time-format` parameter is set to the desired value ("12" or "24").
• **Image Not Displaying:** Make sure the image file exists in the wiki and that the filename is correct. Verify that the image syntax is correct (e.g., `File:Example.png`).
• **Styling Issues:** If the colors or other styling are not displaying as expected, double-check the HTML color codes and ensure they are valid.

Template Documentation

Every template should have comprehensive documentation. This is typically created on a subpage of the template, such as `Template:Greeting/doc`. The documentation should include:

• A clear description of the template’s purpose.
• A list of all available parameters, with detailed explanations and examples.
• Usage examples demonstrating common use cases.
• Troubleshooting tips for common issues.
• Links to related templates and documentation.

Relationship to Trading and Financial Analysis (for context, as requested)

While seemingly unrelated, the principles behind a well-designed template like Template:Greeting mirror best practices in financial analysis and trading. Just as a template provides a consistent and reliable output based on input parameters, successful trading relies on consistent application of strategies and analysis. Consider these analogies:

• **Parameters as Indicators:** The template’s parameters (username, greeting, time-format) are analogous to technical indicators like Moving Averages, MACD, or RSI. Each parameter modifies the output, just as each indicator provides a different perspective on market data.
• **Template Logic as Trading Strategy:** The logic within the template (determining the greeting based on time) resembles a trading strategy. A defined set of rules (time of day) leads to a specific action (greeting). Similar to a Breakout strategy, the template responds to a specific condition.
• **Customization as Risk Management:** The ability to customize the template reflects the need for risk management in trading. Adjusting parameters allows for tailoring the output to specific circumstances, just as adjusting position size or stop-loss orders manages risk.
• **Consistency as Backtesting:** The consistent output of the template is akin to the need for backtesting in trading. A reliable template ensures predictable results, just as backtesting validates the performance of a trading strategy.
• **Documentation as Trading Journal:** The documentation for the template is like a trading journal. It records the rules, parameters, and expected outcomes, allowing for review and improvement.
• **Market Trends & Template Updates:** Just as market trends change, requiring adjustments to trading strategies (e.g., shifting from a Trend Following to a Mean Reversion approach), templates may need updates to remain relevant and effective.
• **Volatility and Parameter Sensitivity:** The sensitivity of the template's output to parameter changes mirrors the concept of volatility in financial markets. Small changes in input can lead to significant differences in the outcome.
• **Correlation & Parameter Interdependence:** The interaction between different template parameters is similar to correlations between different assets.
• **Support and Resistance Levels & Template Limits:** The limitations of the template (e.g., the types of parameters it accepts) are like support and resistance levels in a market – boundaries that define the range of possible outcomes.
• **Fibonacci Retracements & Template Refinement:** Iteratively refining the template's code and parameters is analogous to using Fibonacci Retracements to identify potential price targets.
• **Elliot Wave Theory & Template Evolution:** The evolution of a template over time, with new features and improvements, can be compared to Elliot Wave Theory, where patterns repeat at different scales.
• **Candlestick Patterns & Template Visualizations:** The visual presentation of the greeting (colors, images) can be considered a form of visualization, similar to how Candlestick patterns provide a visual representation of price action.
• **Bollinger Bands & Template Boundaries:** The parameters of the template define its boundaries, similar to how Bollinger Bands define a range around a moving average.
• **Ichimoku Cloud & Template Conditions:** The conditional logic within the template (e.g., displaying different greetings based on user groups) is analogous to the complex conditions defined by the Ichimoku Cloud.
• **Stochastic Oscillator & Template Momentum:** The dynamic nature of the greeting (changing based on the time of day) can be compared to the momentum indicators like the Stochastic Oscillator.
• **Average True Range (ATR) & Template Variability:** The degree to which the template’s output can vary based on parameter changes is similar to the Average True Range (ATR), which measures market volatility.
• **Donchian Channels & Template Range:** The range of possible outputs from the template, defined by its parameters, can be compared to Donchian Channels, which define a price range over a specific period.
• **Parabolic SAR & Template Acceleration:** The ability to customize the template to respond quickly to changing conditions is analogous to the Parabolic SAR, which accelerates as prices move.
• **Volume Weighted Average Price (VWAP) & Template Importance:** The frequency with which the template is used can be compared to the Volume Weighted Average Price (VWAP), which reflects the importance of price levels based on trading volume.
• **Harmonic Patterns & Template Complexity:** The intricate logic and interdependencies within a highly customized template can be compared to the complexity of Harmonic Patterns.
• **Renko Charts & Template Simplification:** Simplifying the template to focus on essential parameters is analogous to using Renko Charts to filter out noise and focus on significant price movements.
• **Heikin Ashi Charts & Template Smoothing:** Using the template to smooth out variations in the user experience is similar to using Heikin Ashi Charts to smooth out price data.
• **Keltner Channels & Template Volatility:** The template’s responsiveness to changes in user data or system settings is similar to how Keltner Channels adapt to changing market volatility.
• **Pivot Points & Template Key Levels:** The key parameters of the template can be considered pivot points that define its behavior.

See Also

• Help:Templates
• Help:Variables
• Help:Magic words
• Help:Linking and referencing
• Help:Conditional statements
• Help:FormatTime
• Extension:Translate
• Template:Documentation
• MediaWiki syntax
• Help:Contents

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Subscribe to our Telegram channel @strategybin to receive: ✓ Daily trading signals ✓ Exclusive strategy analysis ✓ Market trend alerts ✓ Educational materials for beginners ```

This would render as:

Hello, John! Welcome to our wiki.

• `{{{1}}}` represents the first parameter passed to the template.
• `{{{2}}}` would represent the second parameter, and so on.
• You can use named parameters for better readability (explained later).

This concept is vital for templates used in Forex Trading, where parameters can represent currency pairs, timeframes, or indicator settings.

Named Parameters

While numbered parameters work, they can be difficult to remember and maintain, especially for templates with many parameters. Named parameters offer a more descriptive and organized approach.

To define a named parameter, use the `{{{name=default value}}}` syntax. For example:

```wiki Hello, Wiki User! Your favorite color is blue. ```

In this example:

• `name` is a named parameter. If no value is provided when the template is called, it defaults to "Wiki User".
• `color` is another named parameter with a default value of "blue".

Calling the template like this:

```wiki

1. Template:Greeting

Template:Greeting is a fundamental and highly versatile template within the MediaWiki environment, designed to dynamically generate personalized greetings for users. This article provides a comprehensive guide to understanding, utilizing, and customizing this template, catering specifically to beginners. We will cover its core functionality, parameters, usage examples, advanced customization options, troubleshooting common issues, and its role within the broader context of wiki user engagement.

What is a Template?

Before diving into the specifics of Template:Greeting, it’s crucial to understand what a Template is in MediaWiki. Templates are pre-defined sets of wiki markup that can be inserted into pages to consistently display specific content. They act as reusable building blocks, preventing repetitive typing and ensuring uniformity across the wiki. Think of them as functions in programming – you provide certain inputs (parameters), and the template generates a pre-defined output. Using templates promotes efficient content management and a consistent user experience. They are essential for maintaining a professional and organized wiki. Related concepts include Help:Variables and Help:Magic words.

Core Functionality of Template:Greeting

Template:Greeting’s primary purpose is to display a customized greeting message to a user, often incorporating their username. It typically leverages MediaWiki's built-in parser functions to determine the current time and tailor the greeting accordingly (e.g., "Good morning," "Good afternoon," "Good evening"). Beyond a simple greeting, the template can also be extended to display welcome messages, recent activity notifications, or links to helpful resources for new users. It's a crucial element in fostering a welcoming and engaging community environment. Understanding Help:Linking and referencing is key to adding helpful links within the greeting.

Parameters

Template:Greeting utilizes several parameters to control its behavior and output. These parameters are specified when the template is included on a page using the `` syntax. Here's a breakdown of the common parameters:

• `username`: (Optional) The username to greet. If omitted, the template will automatically attempt to determine the current user’s username.
• `greeting`: (Optional) Allows you to override the default greeting message. This can be useful for special occasions or themed greetings.
• `time-format`: (Optional) Specifies the format for displaying the time. Defaults to a 12-hour format. Acceptable values include "12" or "24".
• `show-time`: (Optional) A boolean value (true/false) that determines whether the current time is displayed alongside the greeting. Defaults to "true".
• `custom-message`: (Optional) Allows you to add a completely custom message after the greeting. This parameter is perfect for displaying specific announcements or welcome information.
• `image`: (Optional) Specifies the name of an image to be displayed alongside the greeting. Use standard MediaWiki image syntax (e.g., `File:Example.png`).
• `link`: (Optional) A URL to link from the greeting. Useful for linking to a user's profile or a welcome page.
• `linktext`: (Optional) The text to display for the link specified by the `link` parameter.
• `bgcolor`: (Optional) Sets the background color of the greeting box. Accepts standard HTML color codes (e.g., `#f0f0f0`).
• `textcolor`: (Optional) Sets the text color of the greeting. Accepts standard HTML color codes.

Usage Examples

Here are several examples demonstrating how to use Template:Greeting with different parameters:

1. **Basic Usage (Automatic Username & Default Greeting):**

   ```wiki
   
   ```

   This will display a greeting like "Good morning, [Your Username]!" along with the current time.

2. **Specifying a Username:**

   ```wiki
   
   ```

   This will display "Good morning, ExampleUser!"

3. **Custom Greeting Message:**

   ```wiki
   
   ```

   This will display "Welcome back, [Your Username]!"

4. **Custom Greeting with Time Format:**

   ```wiki
   
   ```

   This will display "Greetings, [Your Username]!" followed by the current time in 24-hour format.

5. **Hiding the Time:**

   ```wiki
   
   ```

   This will display a greeting without the current time.

6. **Adding a Custom Message:**

   ```wiki
   
   ```

   This will display the greeting followed by "Don't forget to check out the Help:Contents!".

7. **Including an Image:**

   ```wiki
   
   ```

   This will display a small Wiki logo next to the greeting.

8. **Adding a Link:**

   ```wiki
   
   ```

   This will display the greeting followed by a link labeled "Visit Example.com" pointing to https://www.example.com.

9. **Customizing Colors:**

   ```wiki
   
   ```

   This will display the greeting in a light blue box with dark blue text.

10. **Combining Parameters:**

   ```wiki
   
   ```

   This demonstrates how to combine multiple parameters for a comprehensive greeting message.

Advanced Customization

While the parameters described above cover most common use cases, Template:Greeting can be further customized by modifying the template’s source code. This requires a basic understanding of MediaWiki markup and parser functions. You can access the template’s source code by clicking the "View source" tab on the Template:Greeting/doc page (or the template itself if documentation doesn't exist).

Here are some advanced customization possibilities:

• **Conditional Greetings:** Use `#if` statements to display different greetings based on user groups (e.g., administrators, registered users, anonymous users). This requires using the `{{#ifeq:Template:USERGROUPS...}}` construct. See Help:Conditional statements for more details.
• **Dynamic Content:** Integrate with other templates or extensions to display dynamic content based on user preferences or recent activity.
• **Custom Time Formats:** Use the `Template:Formattime` parser function to create highly customized time formats. Refer to Help:FormatTime for comprehensive documentation.
• **Error Handling:** Implement error handling to gracefully handle cases where a username is not provided or an image file is missing. Use `#ifexist` to check for file existence.
• **Localization:** Support multiple languages by using the Extension:Translate extension and defining translations for the greeting messages.

Troubleshooting Common Issues

• **Template Not Displaying:** Ensure that the template is correctly included on the page using the `` syntax. Check for typos in the template name.
• **Incorrect Username:** If the template is not displaying the correct username, verify that the user is logged in. If you are specifying a username manually, double-check the spelling.
• **Time Not Displaying Correctly:** Ensure that the server’s time is correctly configured. Verify the `time-format` parameter is set to the desired value ("12" or "24").
• **Image Not Displaying:** Make sure the image file exists in the wiki and that the filename is correct. Verify that the image syntax is correct (e.g., `File:Example.png`).
• **Styling Issues:** If the colors or other styling are not displaying as expected, double-check the HTML color codes and ensure they are valid.

Template Documentation

Every template should have comprehensive documentation. This is typically created on a subpage of the template, such as `Template:Greeting/doc`. The documentation should include:

• A clear description of the template’s purpose.
• A list of all available parameters, with detailed explanations and examples.
• Usage examples demonstrating common use cases.
• Troubleshooting tips for common issues.
• Links to related templates and documentation.

Relationship to Trading and Financial Analysis (for context, as requested)

While seemingly unrelated, the principles behind a well-designed template like Template:Greeting mirror best practices in financial analysis and trading. Just as a template provides a consistent and reliable output based on input parameters, successful trading relies on consistent application of strategies and analysis. Consider these analogies:

• **Parameters as Indicators:** The template’s parameters (username, greeting, time-format) are analogous to technical indicators like Moving Averages, MACD, or RSI. Each parameter modifies the output, just as each indicator provides a different perspective on market data.
• **Template Logic as Trading Strategy:** The logic within the template (determining the greeting based on time) resembles a trading strategy. A defined set of rules (time of day) leads to a specific action (greeting). Similar to a Breakout strategy, the template responds to a specific condition.
• **Customization as Risk Management:** The ability to customize the template reflects the need for risk management in trading. Adjusting parameters allows for tailoring the output to specific circumstances, just as adjusting position size or stop-loss orders manages risk.
• **Consistency as Backtesting:** The consistent output of the template is akin to the need for backtesting in trading. A reliable template ensures predictable results, just as backtesting validates the performance of a trading strategy.
• **Documentation as Trading Journal:** The documentation for the template is like a trading journal. It records the rules, parameters, and expected outcomes, allowing for review and improvement.
• **Market Trends & Template Updates:** Just as market trends change, requiring adjustments to trading strategies (e.g., shifting from a Trend Following to a Mean Reversion approach), templates may need updates to remain relevant and effective.
• **Volatility and Parameter Sensitivity:** The sensitivity of the template's output to parameter changes mirrors the concept of volatility in financial markets. Small changes in input can lead to significant differences in the outcome.
• **Correlation & Parameter Interdependence:** The interaction between different template parameters is similar to correlations between different assets.
• **Support and Resistance Levels & Template Limits:** The limitations of the template (e.g., the types of parameters it accepts) are like support and resistance levels in a market – boundaries that define the range of possible outcomes.
• **Fibonacci Retracements & Template Refinement:** Iteratively refining the template's code and parameters is analogous to using Fibonacci Retracements to identify potential price targets.
• **Elliot Wave Theory & Template Evolution:** The evolution of a template over time, with new features and improvements, can be compared to Elliot Wave Theory, where patterns repeat at different scales.
• **Candlestick Patterns & Template Visualizations:** The visual presentation of the greeting (colors, images) can be considered a form of visualization, similar to how Candlestick patterns provide a visual representation of price action.
• **Bollinger Bands & Template Boundaries:** The parameters of the template define its boundaries, similar to how Bollinger Bands define a range around a moving average.
• **Ichimoku Cloud & Template Conditions:** The conditional logic within the template (e.g., displaying different greetings based on user groups) is analogous to the complex conditions defined by the Ichimoku Cloud.
• **Stochastic Oscillator & Template Momentum:** The dynamic nature of the greeting (changing based on the time of day) can be compared to the momentum indicators like the Stochastic Oscillator.
• **Average True Range (ATR) & Template Variability:** The degree to which the template’s output can vary based on parameter changes is similar to the Average True Range (ATR), which measures market volatility.
• **Donchian Channels & Template Range:** The range of possible outputs from the template, defined by its parameters, can be compared to Donchian Channels, which define a price range over a specific period.
• **Parabolic SAR & Template Acceleration:** The ability to customize the template to respond quickly to changing conditions is analogous to the Parabolic SAR, which accelerates as prices move.
• **Volume Weighted Average Price (VWAP) & Template Importance:** The frequency with which the template is used can be compared to the Volume Weighted Average Price (VWAP), which reflects the importance of price levels based on trading volume.
• **Harmonic Patterns & Template Complexity:** The intricate logic and interdependencies within a highly customized template can be compared to the complexity of Harmonic Patterns.
• **Renko Charts & Template Simplification:** Simplifying the template to focus on essential parameters is analogous to using Renko Charts to filter out noise and focus on significant price movements.
• **Heikin Ashi Charts & Template Smoothing:** Using the template to smooth out variations in the user experience is similar to using Heikin Ashi Charts to smooth out price data.
• **Keltner Channels & Template Volatility:** The template’s responsiveness to changes in user data or system settings is similar to how Keltner Channels adapt to changing market volatility.
• **Pivot Points & Template Key Levels:** The key parameters of the template can be considered pivot points that define its behavior.

See Also

• Help:Templates
• Help:Variables
• Help:Magic words
• Help:Linking and referencing
• Help:Conditional statements
• Help:FormatTime
• Extension:Translate
• Template:Documentation
• MediaWiki syntax
• Help:Contents

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would render as:

Hello, Alice! Your favorite color is green.

Calling it simply as:

```wiki

1. Template:Greeting

Template:Greeting is a fundamental and highly versatile template within the MediaWiki environment, designed to dynamically generate personalized greetings for users. This article provides a comprehensive guide to understanding, utilizing, and customizing this template, catering specifically to beginners. We will cover its core functionality, parameters, usage examples, advanced customization options, troubleshooting common issues, and its role within the broader context of wiki user engagement.

What is a Template?

Before diving into the specifics of Template:Greeting, it’s crucial to understand what a Template is in MediaWiki. Templates are pre-defined sets of wiki markup that can be inserted into pages to consistently display specific content. They act as reusable building blocks, preventing repetitive typing and ensuring uniformity across the wiki. Think of them as functions in programming – you provide certain inputs (parameters), and the template generates a pre-defined output. Using templates promotes efficient content management and a consistent user experience. They are essential for maintaining a professional and organized wiki. Related concepts include Help:Variables and Help:Magic words.

Core Functionality of Template:Greeting

Template:Greeting’s primary purpose is to display a customized greeting message to a user, often incorporating their username. It typically leverages MediaWiki's built-in parser functions to determine the current time and tailor the greeting accordingly (e.g., "Good morning," "Good afternoon," "Good evening"). Beyond a simple greeting, the template can also be extended to display welcome messages, recent activity notifications, or links to helpful resources for new users. It's a crucial element in fostering a welcoming and engaging community environment. Understanding Help:Linking and referencing is key to adding helpful links within the greeting.

Parameters

Template:Greeting utilizes several parameters to control its behavior and output. These parameters are specified when the template is included on a page using the `` syntax. Here's a breakdown of the common parameters:

• `username`: (Optional) The username to greet. If omitted, the template will automatically attempt to determine the current user’s username.
• `greeting`: (Optional) Allows you to override the default greeting message. This can be useful for special occasions or themed greetings.
• `time-format`: (Optional) Specifies the format for displaying the time. Defaults to a 12-hour format. Acceptable values include "12" or "24".
• `show-time`: (Optional) A boolean value (true/false) that determines whether the current time is displayed alongside the greeting. Defaults to "true".
• `custom-message`: (Optional) Allows you to add a completely custom message after the greeting. This parameter is perfect for displaying specific announcements or welcome information.
• `image`: (Optional) Specifies the name of an image to be displayed alongside the greeting. Use standard MediaWiki image syntax (e.g., `File:Example.png`).
• `link`: (Optional) A URL to link from the greeting. Useful for linking to a user's profile or a welcome page.
• `linktext`: (Optional) The text to display for the link specified by the `link` parameter.
• `bgcolor`: (Optional) Sets the background color of the greeting box. Accepts standard HTML color codes (e.g., `#f0f0f0`).
• `textcolor`: (Optional) Sets the text color of the greeting. Accepts standard HTML color codes.

Usage Examples

Here are several examples demonstrating how to use Template:Greeting with different parameters:

1. **Basic Usage (Automatic Username & Default Greeting):**

   ```wiki
   
   ```

   This will display a greeting like "Good morning, [Your Username]!" along with the current time.

2. **Specifying a Username:**

   ```wiki
   
   ```

   This will display "Good morning, ExampleUser!"

3. **Custom Greeting Message:**

   ```wiki
   
   ```

   This will display "Welcome back, [Your Username]!"

4. **Custom Greeting with Time Format:**

   ```wiki
   
   ```

   This will display "Greetings, [Your Username]!" followed by the current time in 24-hour format.

5. **Hiding the Time:**

   ```wiki
   
   ```

   This will display a greeting without the current time.

6. **Adding a Custom Message:**

   ```wiki
   
   ```

   This will display the greeting followed by "Don't forget to check out the Help:Contents!".

7. **Including an Image:**

   ```wiki
   
   ```

   This will display a small Wiki logo next to the greeting.

8. **Adding a Link:**

   ```wiki
   
   ```

   This will display the greeting followed by a link labeled "Visit Example.com" pointing to https://www.example.com.

9. **Customizing Colors:**

   ```wiki
   
   ```

   This will display the greeting in a light blue box with dark blue text.

10. **Combining Parameters:**

   ```wiki
   
   ```

   This demonstrates how to combine multiple parameters for a comprehensive greeting message.

Advanced Customization

While the parameters described above cover most common use cases, Template:Greeting can be further customized by modifying the template’s source code. This requires a basic understanding of MediaWiki markup and parser functions. You can access the template’s source code by clicking the "View source" tab on the Template:Greeting/doc page (or the template itself if documentation doesn't exist).

Here are some advanced customization possibilities:

• **Conditional Greetings:** Use `#if` statements to display different greetings based on user groups (e.g., administrators, registered users, anonymous users). This requires using the `{{#ifeq:Template:USERGROUPS...}}` construct. See Help:Conditional statements for more details.
• **Dynamic Content:** Integrate with other templates or extensions to display dynamic content based on user preferences or recent activity.
• **Custom Time Formats:** Use the `Template:Formattime` parser function to create highly customized time formats. Refer to Help:FormatTime for comprehensive documentation.
• **Error Handling:** Implement error handling to gracefully handle cases where a username is not provided or an image file is missing. Use `#ifexist` to check for file existence.
• **Localization:** Support multiple languages by using the Extension:Translate extension and defining translations for the greeting messages.

Troubleshooting Common Issues

• **Template Not Displaying:** Ensure that the template is correctly included on the page using the `` syntax. Check for typos in the template name.
• **Incorrect Username:** If the template is not displaying the correct username, verify that the user is logged in. If you are specifying a username manually, double-check the spelling.
• **Time Not Displaying Correctly:** Ensure that the server’s time is correctly configured. Verify the `time-format` parameter is set to the desired value ("12" or "24").
• **Image Not Displaying:** Make sure the image file exists in the wiki and that the filename is correct. Verify that the image syntax is correct (e.g., `File:Example.png`).
• **Styling Issues:** If the colors or other styling are not displaying as expected, double-check the HTML color codes and ensure they are valid.

Template Documentation

Every template should have comprehensive documentation. This is typically created on a subpage of the template, such as `Template:Greeting/doc`. The documentation should include:

• A clear description of the template’s purpose.
• A list of all available parameters, with detailed explanations and examples.
• Usage examples demonstrating common use cases.
• Troubleshooting tips for common issues.
• Links to related templates and documentation.

Relationship to Trading and Financial Analysis (for context, as requested)

While seemingly unrelated, the principles behind a well-designed template like Template:Greeting mirror best practices in financial analysis and trading. Just as a template provides a consistent and reliable output based on input parameters, successful trading relies on consistent application of strategies and analysis. Consider these analogies:

• **Parameters as Indicators:** The template’s parameters (username, greeting, time-format) are analogous to technical indicators like Moving Averages, MACD, or RSI. Each parameter modifies the output, just as each indicator provides a different perspective on market data.
• **Template Logic as Trading Strategy:** The logic within the template (determining the greeting based on time) resembles a trading strategy. A defined set of rules (time of day) leads to a specific action (greeting). Similar to a Breakout strategy, the template responds to a specific condition.
• **Customization as Risk Management:** The ability to customize the template reflects the need for risk management in trading. Adjusting parameters allows for tailoring the output to specific circumstances, just as adjusting position size or stop-loss orders manages risk.
• **Consistency as Backtesting:** The consistent output of the template is akin to the need for backtesting in trading. A reliable template ensures predictable results, just as backtesting validates the performance of a trading strategy.
• **Documentation as Trading Journal:** The documentation for the template is like a trading journal. It records the rules, parameters, and expected outcomes, allowing for review and improvement.
• **Market Trends & Template Updates:** Just as market trends change, requiring adjustments to trading strategies (e.g., shifting from a Trend Following to a Mean Reversion approach), templates may need updates to remain relevant and effective.
• **Volatility and Parameter Sensitivity:** The sensitivity of the template's output to parameter changes mirrors the concept of volatility in financial markets. Small changes in input can lead to significant differences in the outcome.
• **Correlation & Parameter Interdependence:** The interaction between different template parameters is similar to correlations between different assets.
• **Support and Resistance Levels & Template Limits:** The limitations of the template (e.g., the types of parameters it accepts) are like support and resistance levels in a market – boundaries that define the range of possible outcomes.
• **Fibonacci Retracements & Template Refinement:** Iteratively refining the template's code and parameters is analogous to using Fibonacci Retracements to identify potential price targets.
• **Elliot Wave Theory & Template Evolution:** The evolution of a template over time, with new features and improvements, can be compared to Elliot Wave Theory, where patterns repeat at different scales.
• **Candlestick Patterns & Template Visualizations:** The visual presentation of the greeting (colors, images) can be considered a form of visualization, similar to how Candlestick patterns provide a visual representation of price action.
• **Bollinger Bands & Template Boundaries:** The parameters of the template define its boundaries, similar to how Bollinger Bands define a range around a moving average.
• **Ichimoku Cloud & Template Conditions:** The conditional logic within the template (e.g., displaying different greetings based on user groups) is analogous to the complex conditions defined by the Ichimoku Cloud.
• **Stochastic Oscillator & Template Momentum:** The dynamic nature of the greeting (changing based on the time of day) can be compared to the momentum indicators like the Stochastic Oscillator.
• **Average True Range (ATR) & Template Variability:** The degree to which the template’s output can vary based on parameter changes is similar to the Average True Range (ATR), which measures market volatility.
• **Donchian Channels & Template Range:** The range of possible outputs from the template, defined by its parameters, can be compared to Donchian Channels, which define a price range over a specific period.
• **Parabolic SAR & Template Acceleration:** The ability to customize the template to respond quickly to changing conditions is analogous to the Parabolic SAR, which accelerates as prices move.
• **Volume Weighted Average Price (VWAP) & Template Importance:** The frequency with which the template is used can be compared to the Volume Weighted Average Price (VWAP), which reflects the importance of price levels based on trading volume.
• **Harmonic Patterns & Template Complexity:** The intricate logic and interdependencies within a highly customized template can be compared to the complexity of Harmonic Patterns.
• **Renko Charts & Template Simplification:** Simplifying the template to focus on essential parameters is analogous to using Renko Charts to filter out noise and focus on significant price movements.
• **Heikin Ashi Charts & Template Smoothing:** Using the template to smooth out variations in the user experience is similar to using Heikin Ashi Charts to smooth out price data.
• **Keltner Channels & Template Volatility:** The template’s responsiveness to changes in user data or system settings is similar to how Keltner Channels adapt to changing market volatility.
• **Pivot Points & Template Key Levels:** The key parameters of the template can be considered pivot points that define its behavior.

See Also

• Help:Templates
• Help:Variables
• Help:Magic words
• Help:Linking and referencing
• Help:Conditional statements
• Help:FormatTime
• Extension:Translate
• Template:Documentation
• MediaWiki syntax
• Help:Contents

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would render as:

Hello, Wiki User! Your favorite color is blue.

Named parameters are particularly useful for complex templates, such as those used to display Candlestick Patterns or Chart Patterns, where you need to specify multiple attributes.

Default Values

As demonstrated in the named parameter example, providing default values is crucial. It ensures that the template functions correctly even when a parameter is not explicitly provided. Default values make your templates more robust and user-friendly. Always consider what a reasonable default value would be for each parameter. In the context of Trading Psychology, a default value could represent a conservative risk tolerance.

Conditional Statements

Templates can also incorporate basic conditional logic using the `#if` parser function. This allows you to display different content based on the value of a parameter.

The syntax is as follows:

```wiki

1. if:{{{condition}}}|

 Content to display if the condition is true.

1. else|

 Content to display if the condition is false.

1. endif

```

For example, let's create a template that displays a warning message if a stock price is below a certain threshold:

```wiki

1. if:{Template:Price<50}|

 Warning: The stock price is below $50.

1. else|

 The stock price is currently $ {{{price}}}.

1. endif

```

Calling the template with `Template:StockPrice` would render:

Warning: The stock price is below $50.

Calling it with `Template:StockPrice` would render:

The stock price is currently $ 60.

Conditional statements are extremely valuable for templates that need to adapt to changing market conditions or user preferences, such as templates displaying Support and Resistance Levels.

Template Loops with #loop

For more complex scenarios, you can use the `#loop` parser function to iterate over a list of items. This is particularly useful for creating tables or lists dynamically. The `#loop` function requires a bit more understanding and is beyond the scope of a basic beginner guide, but it’s essential for advanced template creation. It’s often used for displaying data from Fundamental Analysis.

Common Pitfalls and Best Practices

• **Category Usage:** Always categorize your templates using the `` category (or a more specific subcategory).
• **Documentation:** Document your templates! Explain what they do, what parameters they accept, and how to use them. Use the `/doc` subpage for documentation (e.g., `Template:Example/doc`).
• **Testing:** Thoroughly test your templates before deploying them to ensure they work as expected.
• **Avoid Excessive Complexity:** Keep your templates as simple as possible. Complex templates can be difficult to maintain and debug. Consider breaking down complex logic into multiple smaller templates.
• **Use Named Parameters:** Favor named parameters over numbered parameters for improved readability and maintainability.
• **Use Default Values:** Always provide default values for parameters to make your templates more robust.
• **Avoid Direct Editing of Templates on Live Pages:** Always test changes in a sandbox environment before applying them to live pages.
• **Consider Transclusion Cost:** Extensive use of complex templates can impact page loading times. Optimize your templates for performance. This is important when dealing with pages displaying real-time Tick Data.
• **Be Mindful of Recursion:** Avoid creating templates that call themselves directly or indirectly, as this can lead to infinite loops.

Advanced Techniques (Brief Overview)

• **TemplateData:** TemplateData is a JSON-based format that defines the parameters and documentation for a template, enabling better editor support.
• **Modules:** Lua modules allow you to write more complex template logic and perform calculations that are not possible with the standard parser functions.
• **Parser Hooks:** Parser hooks allow you to extend the MediaWiki parser with custom functions.

These advanced techniques are beyond the scope of this introductory article but are worth exploring as you become more proficient with templates. They are often used for creating highly customized templates for specific applications, like Algorithmic Trading platforms.

Template:Name – A Specific Example

Let's create a simple "Name" template to demonstrate the concepts discussed. This template will display a user's name in a formatted manner.

Create a page titled "Template:Name" with the following content:

```wiki

Usage

This template displays a user's name in bold.

Syntax:

Example:

Template

Anonymous ```

Now, on any page, you can use the template like this:

```wiki My name is: ```

This will render as:

My name is: Bob

If you call the template without a name:

```wiki My name is: ```

It will render as:

My name is: Anonymous

This simple example illustrates the core principles of template creation and usage. You can expand upon this basic template to create more complex and sophisticated content snippets. This template, while simple, demonstrates the foundational principles applicable to more complex templates used for displaying Fibonacci Retracements or MACD Indicators.

Further Resources

• Help:Templates
• Help:TemplateData
• Help:Lua scripting
• MediaWiki Developer Documentation
• Wikipedia's Template Article
• Tutorialspoint MediaWiki Templates

This article provides a solid foundation for understanding and using templates in MediaWiki. By practicing and experimenting with the concepts discussed, you'll be well on your way to mastering this powerful feature and contributing effectively to your wiki. Remember to always refer to the official MediaWiki documentation for the most up-to-date information. Templates are essential for maintaining a consistent and organized wiki, especially when dealing with dynamic information related to Day Trading, Swing Trading, and Long-Term Investing.

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Subscribe to our Telegram channel @strategybin to receive: ✓ Daily trading signals ✓ Exclusive strategy analysis ✓ Market trend alerts ✓ Educational materials for beginners` and `Template:Current time`: These are Jinja2 template variables that will be replaced with the values of the `name` and `current_time` variables passed from the Python code.

Static Files

Flask allows you to serve static files like CSS, JavaScript, and images.

1. **Create a static folder:** Create a folder named `static` in your project directory. 2. **Place static files:** Place your static files inside the `static` folder. For example, create a CSS file named `style.css` in the `static` folder:

```css body {

   background-color: #f0f0f0;

} ```

3. **Access static files:** In your template, use the `url_for()` function to generate URLs for static files:

```html <link rel="stylesheet" href="Template:Url for('static', filename='style.css')"> ```

This will generate the URL `/static/style.css`, which points to your CSS file. Using `url_for` is best practice as it handles pathing automatically.

Extensions

Flask's extensibility is one of its key strengths. Extensions allow you to add features to your application without writing a lot of boilerplate code. Some popular Flask extensions include:

• **Flask-SQLAlchemy:** For database integration.
• **Flask-WTF:** For form handling and validation.
• **Flask-Login:** For user authentication.
• **Flask-Mail:** For sending email.
• **Flask-RESTful:** For building RESTful APIs.

To install an extension, use pip: `pip install flask-extension-name`. Refer to the extension's documentation for usage instructions. Extensions are a cornerstone of building complex applications with Flask.

Advanced Concepts

• **Blueprints:** Blueprints allow you to organize your application into reusable components. They are useful for larger applications with multiple modules.
• **Contexts:** Flask uses contexts to provide access to global objects like the `request` and `current_app` objects.
• **Signals:** Flask signals allow you to connect different parts of your application.
• **Error Handling:** Flask provides mechanisms for handling errors and displaying custom error pages.

Using Flask for APIs

Flask is an excellent choice for building RESTful APIs. The Flask-RESTful extension simplifies the process of creating APIs with resource-based routing and request parsing. APIs are increasingly important for modern web applications and data exchange. Consider using tools like Postman for testing your APIs. Designing a robust API requires careful consideration of API Design Principles.

Flask and Data Science/Trading Strategies

Flask can be seamlessly integrated with data science and trading strategies. Here’s how:

1. **Backtesting Integration:** Utilize Flask to create a web interface for backtesting trading strategies. Present backtesting results (e.g., Sharpe Ratio, maximum drawdown) in a user-friendly format. Libraries like `backtrader` can be used for backtesting, and Flask can display the results. 2. **Real-Time Data Visualization:** Fetch real-time market data (using APIs like those from IEX Cloud, Alpha Vantage, or Finnhub) within your Flask application and visualize it using charting libraries like Plotly or Bokeh. 3. **Strategy Deployment:** Deploy automated trading strategies by using Flask to receive signals from your strategy and execute trades through a brokerage API. (Caution: requires careful risk management). 4. **Indicator Calculation:** Implement calculations for technical indicators (e.g., Moving Averages, RSI, MACD) within your Flask application. Display the indicator values alongside the price data. 5. **Risk Management Tools:** Build web-based tools for risk management, such as position sizing calculators or portfolio analysis dashboards.

Here's a list of 25 links related to strategies, technical analysis, indicators, and trends:

1. [Moving Average Convergence Divergence (MACD)](https://www.investopedia.com/terms/m/macd.asp) 2. [Relative Strength Index (RSI)](https://www.investopedia.com/terms/r/rsi.asp) 3. [Bollinger Bands](https://www.investopedia.com/terms/b/bollingerbands.asp) 4. [Fibonacci Retracement](https://www.investopedia.com/terms/f/fibonacciretracement.asp) 5. [Ichimoku Cloud](https://www.investopedia.com/terms/i/ichimoku-cloud.asp) 6. [Elliott Wave Theory](https://www.investopedia.com/terms/e/elliottwavetheory.asp) 7. [Trend Following Strategies](https://www.investopedia.com/articles/trading/07/trend-following-strategies.asp) 8. [Mean Reversion Strategies](https://www.investopedia.com/articles/trading/07/mean-reversion-strategies.asp) 9. [Arbitrage Trading](https://www.investopedia.com/terms/a/arbitrage.asp) 10. [Scalping Strategies](https://www.investopedia.com/terms/s/scalping.asp) 11. [Day Trading](https://www.investopedia.com/terms/d/daytrading.asp) 12. [Swing Trading](https://www.investopedia.com/terms/s/swingtrading.asp) 13. [Candlestick Patterns](https://www.investopedia.com/terms/c/candlestick.asp) 14. [Head and Shoulders Pattern](https://www.investopedia.com/terms/h/headandshoulders.asp) 15. [Double Top/Bottom Patterns](https://www.investopedia.com/terms/d/doubletop.asp) 16. [Support and Resistance Levels](https://www.investopedia.com/terms/s/supportandresistance.asp) 17. [Volume Analysis](https://www.investopedia.com/terms/v/volume.asp) 18. [On-Balance Volume (OBV)](https://www.investopedia.com/terms/o/obv.asp) 19. [Average True Range (ATR)](https://www.investopedia.com/terms/a/atr.asp) 20. [Stochastic Oscillator](https://www.investopedia.com/terms/s/stochasticoscillator.asp) 21. [Williams %R](https://www.investopedia.com/terms/w/williamspro.asp) 22. [Moving Averages Crossover](https://www.investopedia.com/articles/trading/07/moving-average-crossover.asp) 23. [Golden Cross/Death Cross](https://www.investopedia.com/terms/g/goldencross.asp) 24. [Market Trend Analysis](https://www.investopedia.com/articles/03/091703.asp) 25. [Technical Analysis Tools](https://www.investopedia.com/resources/technical-analysis/)

Conclusion

Flask is a versatile and beginner-friendly web framework that allows you to build a wide range of applications, from simple websites to complex APIs. Its simplicity, extensibility, and large community make it an excellent choice for developers of all levels. By mastering the core concepts outlined in this article, you’ll be well-equipped to start building your own Flask applications. Remember to explore the vast ecosystem of Flask extensions to enhance your projects and streamline development. Understanding the interplay between Flask and areas like data science and trading strategies opens up exciting possibilities for building innovative solutions.

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