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- from django.template import Library, Node, TemplateSyntaxError
- from django.utils import formats
-
- register = Library()
-
-
- @register.filter(is_safe=False)
- def localize(value):
- """
- Force a value to be rendered as a localized value,
- regardless of the value of ``settings.USE_L10N``.
- """
- return str(formats.localize(value, use_l10n=True))
-
-
- @register.filter(is_safe=False)
- def unlocalize(value):
- """
- Force a value to be rendered as a non-localized value,
- regardless of the value of ``settings.USE_L10N``.
- """
- return str(formats.localize(value, use_l10n=False))
-
-
- class LocalizeNode(Node):
- def __init__(self, nodelist, use_l10n):
- self.nodelist = nodelist
- self.use_l10n = use_l10n
-
- def __repr__(self):
- return '<%s>' % self.__class__.__name__
-
- def render(self, context):
- old_setting = context.use_l10n
- context.use_l10n = self.use_l10n
- output = self.nodelist.render(context)
- context.use_l10n = old_setting
- return output
-
-
- @register.tag('localize')
- def localize_tag(parser, token):
- """
- Force or prevents localization of values, regardless of the value of
- `settings.USE_L10N`.
-
- Sample usage::
-
- {% localize off %}
- var pi = {{ 3.1415 }};
- {% endlocalize %}
- """
- use_l10n = None
- bits = list(token.split_contents())
- if len(bits) == 1:
- use_l10n = True
- elif len(bits) > 2 or bits[1] not in ('on', 'off'):
- raise TemplateSyntaxError("%r argument should be 'on' or 'off'" % bits[0])
- else:
- use_l10n = bits[1] == 'on'
- nodelist = parser.parse(('endlocalize',))
- parser.delete_first_token()
- return LocalizeNode(nodelist, use_l10n)
|
