mirror of
https://github.com/kennethreitz/pydantic.git
synced 2026-06-05 23:00:18 +00:00
Samuel Colvin
21 lines
468 B
Python
21 lines
468 B
Python
from datetime import datetime
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from pydantic import validator
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from pydantic.dataclasses import dataclass
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@dataclass
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class DemoDataclass:
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ts: datetime = None
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@validator('ts', pre=True, always=True)
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def set_ts_now(cls, v):
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return v or datetime.now()
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print(DemoDataclass())
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#> DemoDataclass(ts=datetime.datetime(2019, 4, 2, 18, 1, 46, 66149))
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print(DemoDataclass(ts='2017-11-08T14:00'))
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#> DemoDataclass ts=datetime.datetime(2017, 11, 8, 14, 0)
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