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d1chiqua / expertiza

Expertiza is a web application through which students can submit and peer-review learning objects (articles, code, web sites, etc). The Expertiza project is supported by the National Science Foundation.
http://wiki.expertiza.ncsu.edu/index.php/Expertiza_documentation
MIT License
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Create TeamAssignmentService under app/services #30

Closed d1chiqua closed 1 hour ago

d1chiqua commented 1 week ago

https://www.toptal.com/ruby-on-rails/rails-service-objects-tutorial

d1chiqua commented 1 week ago

After last session with professor (mentor), he had indicated that it might be better to have the Services folder under lib/ instead of app/. The article that I reviewed on service objects in rails seems to lean towards app/services. So I asked ChatGPT, which also leaned towards app/services as well.

In Ruby on Rails applications, it's generally better to add a services folder to the app directory rather than the lib directory. Here's why:

  1. Rails Autoloading Mechanism:

App Directory Autoloading: Rails automatically autoloads and reloads code from the app directory and its subdirectories. This means any classes or modules you place in app/services will be automatically loaded without additional configuration. Eager Loading in Production: Placing service objects in app/services ensures they are eager-loaded in production environments, which improves performance and reduces the risk of runtime errors due to missing constants.

  1. Logical Organization:

Application-Specific Code: The app directory is intended for code that is specific to your application's domain and business logic. Service objects typically encapsulate core functionalities that are central to your app. Separation of Concerns: Keeping service objects in app/services maintains a clear separation between your application code and library code, which is usually placed in lib.

  1. Consistency with Rails Conventions:

Community Standards: The Rails community commonly places service objects in app/services. Following this convention makes your codebase more approachable for other developers familiar with Rails. Tool Compatibility: Many gems and Rails tools expect custom code to reside in the app directory, which can simplify integration and reduce configuration overhead.

  1. Easier Maintenance and Testing:

Simplified Testing Setup: Test frameworks like RSpec automatically load code from the app directory, making it easier to write and run tests for your service objects. Hot Reloading in Development: Changes to files in app/services are automatically picked up in development mode, eliminating the need to restart the server when you make changes. When to Use the lib Directory:

Shared or Reusable Code: If you have modules or classes that are generic and could be extracted into a gem or used across multiple applications, placing them in lib makes sense. Extensions and Patches: Code that extends third-party libraries or patches should reside in lib to distinguish it from your application's core functionality. Conclusion:

Adding a services folder to the app directory is the recommended approach for organizing service objects in a Ruby on Rails application. It leverages Rails' autoloading capabilities, aligns with community practices, and keeps your application's business logic well-organized and maintainable.

d1chiqua commented 1 week ago

Reference for updating the controller action method... Rails Guide: Adding More Restful Routes Looking to rename method to just intelligent_assignment

d1chiqua commented 4 days ago

Had issues initially pushing code but used below to update permissions in vm... The error message you're encountering:

vbnet Copy code fatal: Unable to create '/home/juwujar/expertiza/.git/index.lock': Permission denied indicates that Git is unable to create the index.lock file within your repository's .git directory. This lock file is essential for ensuring that Git operations are performed safely without interference from other processes. The "Permission denied" part suggests that there are issues related to file permissions or ownership.

Here's a step-by-step guide to help you diagnose and resolve this issue:

  1. Check Current Permissions First, verify the permissions of the .git directory and its contents:

bash Copy code ls -la /home/juwujar/expertiza/.git/ This command will display the permissions, ownership, and other details of files and directories within .git. Look for the following:

Ownership: Ensure that your user (juwujar) owns the .git directory and its contents. Permissions: Ensure that you have read and write permissions.

  1. Change Ownership If Necessary If you find that the .git directory or its contents are not owned by your user, you can change the ownership using the chown command:

bash Copy code sudo chown -R $(whoami) /home/juwujar/expertiza/.git -R: Applies the change recursively to all files and directories within .git. $(whoami): Automatically uses your current username.

  1. Adjust Permissions Ensure that you have the necessary read and write permissions:

bash Copy code chmod -R u+rw /home/juwujar/expertiza/.git u+rw: Grants the user read and write permissions. -R: Applies recursively.

  1. Remove Existing Lock File (If Present) Sometimes, a leftover index.lock file from a previous Git operation can cause this issue. Before removing it, ensure that no other Git processes are running to avoid data corruption.

Check for running Git processes:

bash Copy code ps aux | grep git If you're certain that no Git processes are active, remove the index.lock file:

bash Copy code rm /home/juwujar/expertiza/.git/index.lock

  1. Avoid Using sudo with Git Using sudo with Git commands can lead to permission issues by changing the ownership of files to the root user. Always run Git commands as your regular user unless absolutely necessary.

  2. Retry the Git Command After performing the above steps, try running your Git command again:

bash Copy code git add .