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✨ Support field max_length #857

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proever wants to merge 2 commits into from
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✨ Support field max_length #857

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bdfb072
support field max_length by checking MaxLen type
proever Mar 25, 2024
cae1653
Merge branch 'main' into field-max-length
YuriiMotov Aug 22, 2025
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5 changes: 5 additions & 0 deletions sqlmodel/_compat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@
Union,
)

from annotated_types import MaxLen
from pydantic import VERSION as P_VERSION
from pydantic import BaseModel
from pydantic.fields import FieldInfo
Expand Down Expand Up @@ -218,6 +219,10 @@ def get_field_metadata(field: Any) -> Any:
for meta in field.metadata:
if isinstance(meta, (PydanticMetadata, MaxLen)):
return meta
elif isinstance(meta, MaxLen):
fake = FakeMetadata()
fake.max_length = meta.max_length
return fake
return FakeMetadata()

def post_init_field_info(field_info: FieldInfo) -> None:
Expand Down