fix: LastSeenCoursewareTimezone race condition#593
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eemaanamir merged 1 commit intodevelop-teakfrom Feb 19, 2026
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Feb 19, 2026
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Original PR: #536
Fix race condition when setting user's last seen courseware timezone
Description
This PR updates the set_last_seen_courseware_timezone method to handle potential race conditions that could occur when multiple concurrent requests attempt to create or update a user’s LastSeenCoursewareTimezone record simultaneously.
Previously, concurrent writes could trigger IntegrityError exceptions when two requests attempted to create the same record at the same time. This PR introduces a try/except block to safely handle that scenario by catching the IntegrityError, then performing an explicit update instead.
Fixes: #533