[DRAFT] Unit Prerequisites Lost During Course Export/Import

[haftamuk]

This PR introduces support for subsection (sequential) prerequisites in the OLX course format. Course authors can now define prerequisite relationships between subsections with configurable completion criteria including minimum score and completion percentage requirements.

Problem Statement

Currently, Open edX lacks the ability to define prerequisite relationships between subsections at the OLX level. This prevents course authors from enforcing learning pathways where students must complete certain subsections before accessing others, which is crucial for structured learning experiences.

Proposed Solution

• Extend the element in OLX to support prerequisite definitions
• Add a new child element with configurable requirements
• Maintain full backward compatibility with existing OLX courses

<sequential display_name="..." ...>
  <prerequisite 
    url_name="SEQUENTIAL-ID"
    min_score="MIN-SCORE-VALUE"
    min_completion="MIN-COMPLETION-SCORE"
  />
  <vertical url_name="..."/>
</sequential>

Supporting information

1. Unit Prerequisites Lost During Course Export/Import #36995
2. https://discuss.openedx.org/t/request-for-comments-course-export-import-and-re-run/16508?u=haftamu.kebede

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[Cup0fCoffee]

@haftamuk Try adding load_services_for_studio function call to export_olx function body, I think this should resolve your issue with getting no services when trying to export the course.

[haftamuk]

@Cup0fCoffee This always returns an empty object.

[haftamuk]

The values to be exported will be populated from the results found at milestone object. @Cup0fCoffee

[mphilbrick211]

Hi @haftamuk! Just checking to see if this pull request is still in progress?

[mphilbrick211]

Closing for now due to inactivity. Can reopen if needed. Thanks!

[haftamuk]

@mphilbrick211 I am planning to put more time in this the coming days! If you may kindly reopen this

[mphilbrick211]

@haftamuk Would you be able to create a new pull request? I wasn't able to reopen this one. Looks like this one can't be re-opened because the branch on your end was removed. Sorry for any confusion.

[haftamuk]

@haftamuk Would you be able to create a new pull request? I wasn't able to reopen this one. Looks like this one can't be re-opened because the branch on your end was removed. Sorry for any confusion.

Here is the new PR

[haftamuk]

@mphilbrick211 Yes. here is the new PR I am working on! Kindly if you can conduct a review on it or facilitate to engage someone to do a review. The bug requires some data formatting considerations that require feedback in the early stages i.e. on data export before we work on import and course re-run!

Thank you