copelco / lib / copelco / apps / aggregator / templatetags /

from __future__ import absolute_import

from django import template
from .models import Feed

class FeedListNode(template.Node):
    def __init__(self, varname):
        self.varname = varname

    def render(self, context):
        context[self.varname] = Feed.objects.filter(is_defunct=False)
        return ''

def do_get_feed_list(parser, token):
    {% get_feed_list as feed_list %}
    bits = token.contents.split()
    if len(bits) != 3:
        raise template.TemplateSyntaxError, "'%s' tag takes two arguments" % bits[0]
    if bits[1] != "as":
        raise template.TemplateSyntaxError, "First argument to '%s' tag must be 'as'" % bits[0]
    return FeedListNode(bits[2])

register = template.Library()
register.tag('get_feed_list', do_get_feed_list)
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