Added button to disable course on end date

[dwang3851]

Description

-Added a button to the edit course page called "disable on end" -When this button is clicked, students are no longer able to access a course once its end date is reached

Motivation and Context

• Resolves #2114
• Will discourage any AIVs from downloading submissions from past semesters
• Illiano asked for it

How Has This Been Tested?

• Ran on local development environment
• Created a new course with end date equal to the current date with the disable on end feature enabled
• Checked that students were unable to access the course
• Tested enabling the feature for an existing course, and making sure it moved from completed to disabled
• Also created a new course with one date after the current date to test the functionality

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have run rubocop and erblint for style check. If you haven't, run overcommit --install && overcommit --sign to use pre-commit hook for linting
• [ ] My change requires a change to the documentation, which is located at Autolab Docs
• [ ] I have updated the documentation accordingly, included in this PR

Other issues / help required

• May be desirable to not disable exactly on end date in case there's late submissions

[coderabbitai[bot]]

Walkthrough

## Walkthrough The changes primarily focus on enhancing course management by introducing logic to automatically disable courses after their end date and refining the database schema. This includes updating methods to use a more consistent naming convention for course status checks, altering data types in the database for optimization, and adding a new column to support automatic course disabling. The modifications aim to improve the system's ability to manage course accessibility and data integrity. ## Changes | File Path | Change Summary | |-----------|----------------| | `app/controllers/users_controller.rb` | Added logic to skip a course based on additional conditions related to course disabling. | | `app/controllers/application_controller.rb` | Updated logic to use `is_disabled?` for course object checks. | | `app/views/.../index.html.erb` | Updated the `@title` variable condition based on the `is_disabled` status of the course. | | `db/schema.rb` | Modified data types, added new columns, and adjusted limits and default values for various columns. | ## Assessment against linked issues | Objective | Addressed | Explanation | |-----------|-----------|-------------| | Automatically disable courses after end date (#2114) | ✅ | | | Use consistent naming for course status checks (#2114) | ✅ | | | Optimize database schema for better performance and flexibility (#2114) | ✅ | | | Ensure data integrity with foreign key constraints (#2114) | ✅ | | The changes effectively address the primary objectives outlined in the linked issue, focusing on automatically disabling courses after their end date and enhancing the system's overall reliability and maintainability. The introduction of a new column (`disable_on_end`) specifically caters to the automatic disabling feature, while database schema optimizations and naming convention updates contribute to the system's robustness.

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