basic.blog tag view

for marco

def tag_detail(request, slug, template_name = 'blog/tag_detail.html', **kwargs):
    """
    Tag detail

    Template: ``blog/tag_detail.html``
    Context:
        object_list
            List of posts specific to the given tag.
        tag
            Given tag.
    """
    #tag = get_object_or_404(Tag, name__iexact=slug)
    # i changed this 

    from django.template.defaultfilters import slugify
    from django.http import Http404
    postags = Tag.objects.usage_for_model(Post)
    tags = []
    for pt in postags:
        if slugify(pt.name) == slugify(slug):
            tags.append(pt)
    if not tags:
        raise Http404

    return list_detail.object_list(
        request,
        queryset = TaggedItem.objects.get_union_by_model(Post, tags).filter(status=2),
        extra_context = {'tag': tags[0]},
        template_name = template_name,
        **kwargs
    )
    # endichanged