Helpers¶
AsTag¶
- class ttag.helpers.AsTag¶
Assists with the common case of tags which want to add something to the context.
For example, if you wanted a tag which would add a QuerySet containing a user’s friends to the context ({% get_friends user as friends %}):
class GetName(ttag.helpers.AsTag) user = ttag.Arg() def output(self, data, context): return data['user'].friends_set.all()
Some additional customization attributes to those which are provided in the standard Tag‘s Meta class are available:
- class Meta¶
- as_name¶
Use some other argument name rather than the default of as.
- as_required¶
Set whether or not as varname argument is required (defaults to True).
Two additional methods of interest are as_value, which allows you to more completely customise output.
- ttag.helpers.as_value(self, data, context)¶
Returns the value you want to put into the context variable. By default, returns the value of output().
- ttag.helpers.as_output(self, data, context)¶
Returns the data you want to render when as varname is used. Defaults to ''.