43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
from datetime import datetime
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from typing import Optional, Union
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from dateutil.parser import isoparse
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from dateutil.tz import tzutc
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from marshmallow import fields
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class StrippedString(fields.Function): # lgtm [py/missing-call-to-init]
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def __init__(self, *args, **kwargs):
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kwargs['serialize'] = self._strip
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kwargs['deserialize'] = self._strip
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super().__init__(*args, **kwargs)
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@staticmethod
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def _strip(value: str):
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return value.strip()
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class DateTime(fields.Function):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.metadata = {
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'example': datetime.now(tz=tzutc()).isoformat(),
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**(self.metadata or {}),
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}
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def _serialize(self, value, attr, obj, **kwargs) -> Optional[str]:
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value = normalize_datetime(obj.get(attr))
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if value:
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return value.isoformat()
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def _deserialize(self, value, attr, data, **kwargs) -> Optional[datetime]:
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return normalize_datetime(value)
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def normalize_datetime(dt: Union[str, datetime]) -> Optional[datetime]:
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if not dt:
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return
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if isinstance(dt, datetime):
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return dt
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return isoparse(dt)
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