def _filter_select_dateds(context: Context, dateds: Iterable[Dated],
date: Optional[Datey]) -> Iterator[Dated]:
if date is None:
date = context.resolve_or_missing('today')
return filter(
lambda dated: dated.date is None or dated.date.comparable and dated.
date in date, dateds)
def _filter_url(context: Context,
resource: Any,
media_type: Optional[str] = None,
locale: Optional[str] = None,
**kwargs) -> str:
media_type = 'text/html' if media_type is None else media_type
locale = locale if locale else context.resolve_or_missing('locale')
return context.environment.app.localized_url_generator.generate(
resource, media_type, locale=locale, **kwargs)
def _filter_json(context: Context,
data: Any,
indent: Optional[int] = None) -> str:
"""
Converts a value to a JSON string.
"""
return stdjson.dumps(data,
indent=indent,
cls=JSONEncoder.get_factory(
context.environment.app,
context.resolve_or_missing('locale')))
def _filter_select_localizeds(
context: Context,
localizeds: Iterable[Localized],
include_unspecified: bool = False) -> Iterable[Localized]:
locale = context.resolve_or_missing('locale')
for localized in localizeds:
if include_unspecified and localized.locale in {
None, 'mis', 'mul', 'und', 'zxx'
}:
yield localized
if localized.locale is not None and negotiate_locale(
locale, [localized.locale]) is not None:
yield localized
def _filter_sort_localizeds(context: Context, localizeds: Iterable[Localized],
localized_attribute: str,
sort_attribute: str) -> Iterable[Localized]:
locale = context.resolve_or_missing('locale')
get_localized_attr = make_attrgetter(context.environment,
localized_attribute)
get_sort_attr = make_attrgetter(context.environment, sort_attribute)
def _get_sort_key(x):
return get_sort_attr(
negotiate_localizeds(locale, get_localized_attr(x)))
return sorted(localizeds, key=_get_sort_key)
def _filter_format_date(context: Context, date: Datey) -> str:
locale = context.resolve_or_missing('locale')
return format_datey(date, locale)
def _filter_negotiate_localizeds(
context: Context,
localizeds: Iterable[Localized]) -> Optional[Localized]:
locale = context.resolve_or_missing('locale')
return negotiate_localizeds(locale, list(localizeds))