MONGOID-5899 Write conflict error when accessing embedded documents via [] operator after direct DB update#6077
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kyleburgess2025 merged 2 commits intomongodb:9.0-stablefrom Dec 19, 2025
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…ia [] operator after direct DB update (mongodb#6076) * Adds support for single hash input in nested attributes for has_many associations. * Fixing write conflict error when using [] to access embedded document * undoing accidental changes
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Pull request overview
This PR backports MONGOID-5899, which fixes a conflicting update error when accessing embedded documents using the attribute accessor ([] notation). The fix prevents incorrectly marking embedded relations as changed when accessed via bracket notation.
Key Changes:
- Modified
process_raw_attributeto check if an attribute is a relation before marking it as changed - Added test coverage for accessing embedded documents with the attribute accessor to ensure no conflicting update errors occur
- Fixed a typo in an existing test context name ("modifiying" → "modifying")
Reviewed changes
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| File | Description |
|---|---|
| lib/mongoid/attributes.rb | Added relation check to prevent marking embedded relations as changed when accessed |
| spec/mongoid/attributes_spec.rb | Added test case for embedded document access and corrected spelling in context name |
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jamis
approved these changes
Dec 18, 2025
kyleburgess2025
changed the title
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Backport of MONGOID-5899