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raise NotSupportedError for QuerySet.prefetch_related() #75

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Merged
merged 1 commit into from
Jul 12, 2024
Merged

raise NotSupportedError for QuerySet.prefetch_related() #75

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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -114,6 +114,7 @@ Migrations for 'admin':
- `datetimes()`
- `distinct()`
- `extra()`
- `prefetch_related()`

- `Subquery`, `Exists`, and using a `QuerySet` in `QuerySet.annotate()` aren't
supported.
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2 changes: 2 additions & 0 deletions django_mongodb/compiler.py
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Expand Up @@ -101,6 +101,8 @@ def check_query(self):
raise NotSupportedError("QuerySet.dates() is not supported on MongoDB.")
raise NotSupportedError("QuerySet.distinct() is not supported on MongoDB.")
if self.query.extra:
if any(key.startswith("_prefetch_related_") for key in self.query.extra):
raise NotSupportedError("QuerySet.prefetch_related() is not supported on MongoDB.")
raise NotSupportedError("QuerySet.extra() is not supported on MongoDB.")
if any(
isinstance(a, Aggregate) and not isinstance(a, Count)
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