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# -*- coding: utf-8 -*- |
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from senaite.core.api import dtime |
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from senaite.core.schema.fields import BaseField |
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from senaite.core.schema.interfaces import IDatetimeField |
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from zope.interface import implementer |
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from zope.schema import Datetime |
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def localize(dt, fallback="UTC"): |
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if dtime.is_timezone_naive(dt): |
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zone = dtime.get_os_timezone() |
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if not zone: |
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zone = fallback |
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dt = dtime.to_zone(dt, zone) |
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return dt |
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@implementer(IDatetimeField) |
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class DatetimeField(Datetime, BaseField): |
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"""A field that handles date and time |
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""" |
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def set(self, object, value): |
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"""Set datetime value |
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NOTE: we need to ensure timzone aware datetime values, |
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so that also API calls work |
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:param object: the instance of the field |
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:param value: datetime value |
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:type value: datetime |
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""" |
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if dtime.is_dt(value): |
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value = localize(value) |
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super(DatetimeField, self).set(object, value) |
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def get(self, object): |
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"""Get the current date |
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:param object: the instance of the field |
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:returns: datetime or None |
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""" |
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value = super(DatetimeField, self).get(object) |
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if not dtime.is_dt(value): |
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return None |
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return localize(value) |
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def _validate(self, value): |
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"""Validator when called from form submission |
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""" |
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super(DatetimeField, self)._validate(value) |
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senaite /
senaite.core
