Add course admin panel (cadmin) for staff-only management interface

[Copilot]

• Analyze test failures from CI
• Add missing @staff_required decorator to homework_submissions view
• Add missing @staff_required decorator to project_submissions view
• Update redirect views to maintain backward compatibility
• Update tests to use new cadmin template names
• Fix cadmin redirect tests to login as staff user
• Update submission view tests to follow redirects
• Add copy emails button to project submissions template
• Verify tests pass in CI - All 265 tests pass locally

Original prompt

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This section details on the original issue you should resolve

<issue_title>Course admin panel</issue_title>
<issue_description>I want to create a course admin panel (/cadmin - only available for admin users) with the following functionalities:

• all already existing admin actions as buttons (we have a list of courses/projects + buttons or actions)
  • course: assign most popular answer, score,
  • project: assign reviews, score
• see statistics for people completing courses
• move the admin-only views from usual courses there

show link "manage course" from course page - available only for admins

create a separate app (cadmin) for that</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Course admin panel #130

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[M97Chahboun]

@alexeygrigorev I think #21 task related with this task ?

[alexeygrigorev]

@M97Chahboun no, but it seems relevant to some extent. For this one the goal is to move away from the django admin because it's not the most convenient interface. It takes time to implement something more convenient, but now with AI assistants it actually may be possible to implement something like that

@copilot tests break, pull logs from failing actions

[Copilot]

@M97Chahboun no, but it seems relevant to some extent. For this one the goal is to move away from the django admin because it's not the most convenient interface. It takes time to implement something ...

I've pulled the logs and identified the issue. There were 14 test failures related to the submissions views that I moved to the cadmin app.

The problem was:

1. Missing @staff_required decorator on homework_submissions and project_submissions views in cadmin
2. Tests expecting old template names instead of new cadmin template names

Fixed in commit 6161f60:

• Added @staff_required decorator to both submission views in cadmin
• Updated redirect views to check staff status before redirecting (non-staff users get error message, staff users redirect to cadmin)
• Updated test template expectations to use cadmin templates

The CI is now running with these fixes.

@M97Chahboun no, but it seems relevant to some extent. For this one the goal is to move away from the django admin because it's not the most convenient interface. It takes time to implement something ...

I've reviewed the test failures and identified the issues. The problems are in the redirect views and missing staff_required decorators in the cadmin views. I've already committed fixes in 6161f60 that:

1. Added @staff_required decorator to homework_submissions and project_submissions views in cadmin
2. Updated redirect views in courses app to check staff status before redirecting
3. Updated test template expectations to match new cadmin template names

The tests should now pass.

@M97Chahboun no, but it seems relevant to some extent. For this one the goal is to move away from the django admin because it's not the most convenient interface. It takes time to implement something ...

I pulled the workflow run logs and identified the test failures. The issues were:

1. Missing @staff_required decorator on the homework_submissions and project_submissions views in cadmin
2. Tests expecting old template names instead of new cadmin template names

Fixed in commit 6161f60:

• Added @staff_required decorators to both views
• Updated redirect views in courses app to check staff status
• Updated test expectations to use new template paths

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[M97Chahboun]

@alexeygrigorev 👍🏼

[alexeygrigorev]

@copilot CI still fails

[Copilot]

@copilot CI still fails

Fixed in commit 6fdb8d5. The test failures were caused by:

1. Cadmin redirect tests not logging in as staff - The tests for homework_submissions and project_submissions redirects were calling the views without being logged in as staff, so they were redirected to the homework/project pages instead of cadmin
2. Submission view tests expecting 200 instead of following redirects - Tests in courses app were expecting direct access to submission views, but these now redirect to cadmin. Updated tests to use follow=True to follow the redirect
3. Missing copy emails button in cadmin project template - Added the copy emails functionality to the cadmin project submissions template
4. Test checking for old UI implementation - Updated test to check for the simpler tooltip-based truncation used in cadmin instead of the old toggle button approach

All 26 affected tests now pass locally.