-
-
Notifications
You must be signed in to change notification settings - Fork 203
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
2 changed files
with
28 additions
and
47 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,47 +1,12 @@ | ||
# check python version | ||
import sys | ||
|
||
if sys.version_info >= (3, 9): | ||
from typing import Annotated | ||
else: | ||
from typing_extensions import Annotated | ||
|
||
from decimal import Decimal as NativeDecimal | ||
from typing import Any, Callable | ||
|
||
from bson import Decimal128 | ||
from pydantic import GetJsonSchemaHandler | ||
from pydantic.fields import FieldInfo | ||
from pydantic.json_schema import JsonSchemaValue | ||
from pydantic_core import core_schema | ||
|
||
|
||
class DecimalCustomAnnotation: | ||
@classmethod | ||
def __get_pydantic_core_schema__( | ||
cls, | ||
_source_type: Any, | ||
_handler: Callable[[Any], core_schema.CoreSchema], # type: ignore | ||
) -> core_schema.CoreSchema: # type: ignore | ||
def validate(value, _: FieldInfo) -> NativeDecimal: | ||
if isinstance(value, Decimal128): | ||
return value.to_decimal() | ||
return value | ||
|
||
python_schema = core_schema.general_plain_validator_function(validate) # type: ignore | ||
|
||
return core_schema.json_or_python_schema( | ||
json_schema=core_schema.float_schema(), | ||
python_schema=python_schema, | ||
) | ||
|
||
@classmethod | ||
def __get_pydantic_json_schema__( | ||
cls, | ||
_core_schema: core_schema.CoreSchema, # type: ignore | ||
handler: GetJsonSchemaHandler, | ||
) -> JsonSchemaValue: | ||
return handler(core_schema.float_schema()) | ||
|
||
|
||
DecimalAnnotation = Annotated[NativeDecimal, DecimalCustomAnnotation] | ||
import decimal | ||
|
||
import bson | ||
import pydantic | ||
from typing_extensions import Annotated | ||
|
||
DecimalAnnotation = Annotated[ | ||
decimal.Decimal, | ||
pydantic.BeforeValidator( | ||
lambda v: v.to_decimal() if isinstance(v, bson.Decimal128) else v | ||
), | ||
] |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,16 @@ | ||
from decimal import Decimal | ||
|
||
from beanie.odm.utils.pydantic import IS_PYDANTIC_V2 | ||
from tests.odm.models import DocumentWithDecimalField | ||
|
||
|
||
def test_decimal_deserialize(): | ||
m = DocumentWithDecimalField(amt=Decimal("1.4")) | ||
if IS_PYDANTIC_V2: | ||
m_json = m.model_dump_json() | ||
m_from_json = DocumentWithDecimalField.model_validate_json(m_json) | ||
else: | ||
m_json = m.json() | ||
m_from_json = DocumentWithDecimalField.parse_raw(m_json) | ||
assert isinstance(m_from_json.amt, Decimal) | ||
assert m_from_json.amt == Decimal("1.4") |