feat: audit preview of verified content in course outline

[nsprenkle]

Description

Where enabled, previews the presence of verified content to audit learners.

To-do list

• Feature flagged
• Course Home
  • Shows non-audit content to audit where enabled
• Unit Testing
• Regression testing
  • Still hides content gated for other reasons (e.g. Staff-only, gated content)
  • Exams details (update to toggles removes this)
  • Schedule details (update to toggles removes this)

Deferred

• Left Side Nav
• Limited to Verified content only

Supporting information

Enable the feature by setting the Course Waffle flag course_home.audit_learner_verified_preview to Enabled.

Once enabled, this checks for the checks that both the user is Audit and the course has a Verified track. Where this is the case it will no longer remove Verified content from the outline, instead marking blocks that are Verified-only with the is_preview field as true

Trimmed API as example:

GET https://{lms}/api/course_home/outline/{course-id} HTTP/1.1

{
  "course_blocks": {
        "blocks": {
            "block-v1:{course-id}+type@sequential+block@{block-id}": {
                "display_name": "Sequence limited to Verified Track",
                 "children": [  ],
                "type": "sequential",
                "is_preview": true
            },
            "block-v1:{course-id}+type@sequential+block@{block-id}": {
                "display_name": "Sequence available to Audit",
                 "children": [ ],
                "type": "sequential",
                "is_preview": false
            }
        }
    }
}

Testing instructions

1. Create a course with
   a. Verified and enrollment tracks
   b. Sequences that are restricted to certain enrollment groups.
   c. course_home.audit_learner_verified_preview waffle flag enabled.
2. Log in as an audit learner.
3. Go to the Course Overview page.
4. Verified-only sequences and sections with verified-only content should still show up for audit learners.
5. Disable the feature and confirm that verified-only content no longer show up in course outline.

[Copilot]

Pull request overview

This PR introduces a feature that allows audit learners to preview the structure of verified-only content in course outlines, controlled by the course_home.audit_learner_verified_preview waffle flag. When enabled, audit learners can see that verified content exists (marked with is_preview: true) without being able to access it.

Key changes:

• Added feature flag logic to determine when audit learners can preview verified content
• Modified the learning sequences API to collect and mark previewable content instead of removing it
• Updated the course home outline view to set is_preview markers on applicable blocks

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
lms/djangoapps/course_home_api/toggles.py	Added waffle flag and helper functions to check if audit learners can preview verified content
lms/djangoapps/course_home_api/tests/test_toggles.py	Added comprehensive unit tests for the preview eligibility logic
openedx/core/djangoapps/content/learning_sequences/data.py	Added previewable_sequences field to UserCourseOutlineData
openedx/core/djangoapps/content/learning_sequences/api/outlines.py	Modified outline processing to collect previewable content when feature is enabled
openedx/core/djangoapps/content/learning_sequences/services.py	Added preview_verified_content parameter to service interface
openedx/core/djangoapps/content/learning_sequences/api/tests/test_outlines.py	Added tests for preview functionality with verified and audit users
lms/djangoapps/course_home_api/outline/views.py	Added logic to mark previewable blocks with is_preview flag in API response
lms/djangoapps/course_home_api/outline/tests/test_view.py	Added integration tests for the preview feature in the outline view
lms/djangoapps/course_home_api/outline/serializers.py	Added is_preview field to block serialization with False default
openedx/features/course_experience/utils.py	Updated comments to correctly describe function behavior

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

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[jansenk]

lgtm

[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 1 comment.

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[nsprenkle]

Replaces openedx#37616, which I have now closed