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fix: add ability to strictly enforce date format in conformatteddate #70

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Merged
stevenhsd merged 3 commits into from
Mar 12, 2026
Merged

fix: add ability to strictly enforce date format in conformatteddate #70

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3f59d8c
fix: add ability to strictly enforce date format in conformatteddate
stevenhsd Mar 11, 2026
0d3b6c2
Merge branch 'release_v070' of https://github.com/NHSDigital/data-val…
stevenhsd Mar 12, 2026
d45428a
refactor: tweaks to sort review comments
stevenhsd Mar 12, 2026
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6 changes: 6 additions & 0 deletions src/dve/metadata_parser/domain_types.py
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Original file line number Diff line number Diff line change
Expand Up @@ -260,6 +260,8 @@ class ConFormattedDate(dt.date):

DATE_FORMAT: ClassVar[Optional[str]] = None
"""The specific format of the date as a Python 'strptime' string."""
strict: ClassVar[Optional[bool]] = False
"""Add additional check to ensure that date supplied meets the date format exactly."""
ge: ClassVar[Optional[dt.date]] = None
"""The earliest date allowed."""
le: ClassVar[Optional[dt.date]] = None
Expand All @@ -280,6 +282,8 @@ def validate(cls, value: Optional[Union[dt.date, str]]) -> Optional[dt.date]:
elif cls.DATE_FORMAT is not None:
try:
date = dt.datetime.strptime(value, cls.DATE_FORMAT).date()
if cls.strict and (date.strftime(cls.DATE_FORMAT) != value):
raise ValueError
except ValueError as err:
raise ValueError(
f"Unable to parse provided datetime in format {cls.DATE_FORMAT}"
Expand Down Expand Up @@ -317,6 +321,7 @@ def __get_validators__(cls) -> Iterator[classmethod]:
@validate_arguments
def conformatteddate(
date_format: Optional[str] = None,
strict: Optional[bool] = False,
ge: Optional[dt.date] = None, # pylint: disable=invalid-name
le: Optional[dt.date] = None, # pylint: disable=invalid-name
gt: Optional[dt.date] = None, # pylint: disable=invalid-name
Expand All @@ -331,6 +336,7 @@ def conformatteddate(

dict_ = ConFormattedDate.__dict__.copy()
dict_["DATE_FORMAT"] = date_format
dict_["strict"] = strict
dict_["ge"] = ge
dict_["le"] = le
dict_["gt"] = gt
Expand Down
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