objectbox / objectbox/objectbox-dart
Support oneOf for relations
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enhancement
- Dominant language
- Dart
- Stars
- 1.2k
- Forks
- 162
- Avg merge
- 15m
- Merged PRs (30d)
- 1
Description
Basic info (please complete the following information):
- ObjectBox version: 2.0.0
- Flutter/Dart SDK: Flutter 3.7.7
- Null-safety enabled: yes
- Reproducibility: always
- OS: macOs, but it shoudlnt exactly matter
Steps to reproduce
Dart version lacks any kind of eager loading of relations so I wanted to batch get them rather then fetching it one by one.
Example: ObjectA with ToOne relation to ObjectB.
final q = (db.store.box<ObjectA>().query()..link(ObjectA_.relation, ObjectB_.id.oneOf([1])))
.build();
final res = q.find();
getting
Unsupported operation: Unsupported type for IN: 11
Similarly:
final q = (db.store.box<ObjectA>().query(ObjectA_.relation.oneOf([1])).build();
final res = q.find();
Same error.
Expected behavior
Return ObjectA list where relation is filtered by oneOf.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source files or tests are named. Start by reproducing the relation query with ToOne and oneOf shown in the issue, then trace the Dart query-builder handling for linked relations and IN filters. Done means both examples return ObjectA records whose relation matches oneOf without the unsupported-type error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- dart, flutter
- Domain
- database, mobile
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100