from django.contrib.syndication.feeds import Feed
from django.contrib.contenttypes.models import ContentType
from django.http import Http404
from jayparlar.tags.models import TaggedItem
from jayparlar.blog.models import Post

class TagFeed(Feed):
    def get_object(self, bits):
        print "BITS", bits
        if len(bits) != 1:
            raise TaggedItem.DoesNotExist
    
        try:
            return TaggedItem.objects.filter(tag__exact=bits[0])[0]
        except:
            raise TaggedItem.DoesNotExit

    def title(self, obj):
        return "JayParlar.com: Items tagged with %s" % obj.tag

    def link(self, obj):
        return obj.get_absolute_url()

    def description(self, obj):
        return "Items recently tagged with %s" % obj.tag

    def items(self, obj):
        # XXX This should probably filter on the Post content type
        ctype_id = ContentType.objects.get_for_model(Post).id
        tags = TaggedItem.objects.filter(tag__exact=obj.tag, 
                                content_type=ctype_id)
        items = []
        for tag in tags:
            if tag.content_object.status == "Published":
                items.append(tag.content_object)
        return items