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edx-platform/openedx
Abdul-Muqadim-Arbisoft e5b497cbba fix: prevent None entrance_exam_minimum_score_pct from breaking CourseOverview sync (#37339)
* fix: prevent None entrance_exam_minimum_score_pct from breaking CourseOverview sync

When entrance exams are disabled in Studio, the field
`entrance_exam_minimum_score_pct` was set to `None`. This caused silent failures
when saving `CourseOverview` because the database column requires a float (NOT NULL).

This patch ensures that:
- CourseOverview sanitizes None values by falling back to
  `settings.ENTRANCE_EXAM_MIN_SCORE_PCT` (default=50).
- Studio avoids writing `None` and instead applies the configured default.

Impact:
- Prevents IntegrityErrors and silent failures when updating course settings.
- Restores proper syncing between modulestore (Mongo) and CourseOverview (MySQL).
- Fixes reported issues such as display name changes not persisting and course
  start dates not syncing.

Closes: https://github.com/openedx/edx-platform/issues/37319#

* refactor: clean up entrance_exam_minimum_score_pct handling

- Consolidate logic to avoid repeated assignments
- Centralize None fallback and int/float normalization
- Improve readability with inline comment and consistency with Open edX style

* test: update entrance exam deletion test to expect default min score

- Adjusted `test_entrance_exam_created_updated_and_deleted_successfully` to check for
  `settings.ENTRANCE_EXAM_MIN_SCORE_PCT` instead of `None` after exam deletion
- Added handling for both int and float defaults (`/100` for integer case)
2025-10-08 15:26:00 +05:00
..

openedx
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This directory (openedx) should contain code that is used by both `LMS <https://github.com/openedx/edx-platform/tree/master/lms>`_ and `CMS <https://github.com/openedx/edx-platform/tree/master/cms>`_. If your code is specific to LMS or CMS, put it in those directories instead.

Like openedx, the directory `common <https://github.com/openedx/edx-platform/tree/master/common>`_ also contains code used by both LMS and CMS. At some point we'll merge the two.

Lastly, the directory `xmodule <https://github.com/openedx/edx-platform/tree/master/xmodule>`_ contains legacy core code, also used by both LMS and CMS. We're in the middle of a long process of phasing that code out. Don't add new code there.