For legacy library_content references in courses, this PR: - **Removes the spurious sync after updating a reference to a migrated library**, so that users don't need to "update" their content _after_ updating their reference, _unless_ there were real content edits that happened since they last synced. We do this by correctly associating a DraftChangeLogRecord with the ModulestoreBlockSource migration artifact, and then comparing that version information before offering a sync. (related issue: https://github.com/openedx/frontend-app-authoring/issues/2626). - **Prompts users to update a reference to a migrated library with higher priority than prompting them to sync legacy content updates for that reference**, so that users don't end up needing to accept legacy content updates in order to get a to a point where they can update to V2 content. - **Ensures the library references in courses always follow the correct migration,** as defined by the data `forwarded` fields in the data model, which are populated based on the REST API spec and the stated product UI requirements. * For the migration itself, this PR: - **Allows non-admins to migrate libraries**, fixing: https://github.com/openedx/edx-platform/issues/37774 - **When triggered via the UI, ensures the migration uses nice title-based target slugs instead of ugly source-hash-based slugs.** We've had this as an option for a long time, but preserve_url_slugs defaulted to True instead of False in the REST API serializer, so we weren't taking advantage of it. - **Unifies logic between single-source and bulk migration**. These were implement as two separate code paths, with drift in their implementations. In particular, the collection update-vs-create-new logic was completely different for single-souce vs. bulk. - **When using the Skip or Update strategies for repeats, it consistently follows mappings established by the latest successful migration** rather than following mappings across arbitrary previous migrations. - **We log unexpected exceptions more often**, although there is so much more room for improvement here. - **Adds more validation to the REST API** so that client mistakes more often become 400s with validation messages rather than 500s. For developers, this PR: - Adds unit tests to the REST API - Ensures that all migration business logic now goes through a general-purpose Python API. - Ensures that the data model (specifically `forwarded`, and `change_log_record`) is now populated and respected. - Adds more type annotations.
CMS
===
This directory contains code relating to the Open edX Content Management System ("CMS"). It allows learning content to be created, edited, versioned, and eventually published to the `Open edX Learning Mangement System <../lms>`_ ("LMS"). The main user-facing application that CMS powers is the `Open edX Studio <https://docs.openedx.org/en/latest/educators/concepts/open_edx_platform/what_is_studio.html>`_
See also
--------
* `CMS vs Studio terminology <../docs/decisions/0013-cms-vs-studio.rst>`_
* `CMS vs LMS boundaries <../docs/decisions/0005-studio-lms-subdomain-boundaries.rst>`_