class ISelfPopulatingExtent(IExtent):
"""An extent that knows how to create it's own initial population."""
populated = schema.Bool(
title=_("Populated"),
description=_(
"Flag indicating whether self-population has been performed."),
readonly=True,
)
def populate():
"""Populate the extent based on the current content of the database.
def value(self, value):
if not isinstance(value, datetime.datetime):
raise ValueError(
_('This index only indexes timezone-aware datetimes.'))
if value.tzinfo is None:
value = datetime.datetime(
value.year, value.month, value.day, value.hour,
value.minute, value.second, value.microsecond, pytz.utc)
value = value.astimezone(pytz.utc)
return super(DateTimeNormalizer, self).value(value)
def all(value, index):
"""Normalize a query value for an "all_of" search; return the value
for query"""
def minimum(value, index, exclude=False):
"""normalize a query value for minimum of a range; return the value for
query"""
def maximum(value, index, exclude=False):
"""normalize a query value for maximum of a range; return the value for
query"""
resolution_vocabulary = SimpleVocabulary(
[SimpleTerm(i, t, t) for i, t in enumerate(
(_('day'), _('hour'), _('minute'), _('second'), _('microsecond')))])
# 0 1 2 3 4
class IDateTimeNormalizer(INormalizer):
resolution = schema.Choice(
vocabulary=resolution_vocabulary,
title=_('Resolution'),
default=2,
required=True)
class ICallableWrapper(zope.index.interfaces.IInjection,
zope.index.interfaces.IIndexSearch,
zope.index.interfaces.IStatistics,
IIndexValues):
def value(self, value):
if not isinstance(value, datetime.datetime) or value.tzinfo is None:
raise ValueError(
_('This index only indexes timezone-aware datetimes.'))
return set_resolution(value, self.resolution)
class IDateTimeNormalizer(INormalizer):
resolution = schema.Choice(vocabulary=resolution_vocabulary,
title=_('Resolution'),
default=2,
required=True)
def all(value, index):
"""Normalize a query value for an "all_of" search; return the value
for query"""
def minimum(value, index, exclude=False):
"""normalize a query value for minimum of a range; return the value for
query"""
def maximum(value, index, exclude=False):
"""normalize a query value for maximum of a range; return the value for
query"""
resolution_vocabulary = SimpleVocabulary([
SimpleTerm(i, t, t)
for i, t in enumerate((_('day'), _('hour'), _('minute'), _('second'),
_('microsecond')))
])
# 0 1 2 3 4
class IDateTimeNormalizer(INormalizer):
resolution = schema.Choice(vocabulary=resolution_vocabulary,
title=_('Resolution'),
default=2,
required=True)
class ICallableWrapper(zope.index.interfaces.IInjection,
zope.index.interfaces.IIndexSearch,
zope.index.interfaces.IStatistics, IIndexValues):
def value(self, value):
if not isinstance(value, datetime.datetime) or value.tzinfo is None:
raise ValueError(
_('This index only indexes timezone-aware datetimes.'))
return set_resolution(value, self.resolution)
