'Extracts interesting thing from a Thread and its Posts'

@classmethod
def extract_document(cls, obj_id, obj=None):

    if (obj is None):
        model = cls.get_model()
        obj = model.objects.select_related('user').get(pk=obj_id)
    if (not obj.user.is_active):
        raise UnindexMeBro()
    d = {}
    d['id'] = obj.pk
    d['model'] = cls.get_mapping_type_name()
    d['url'] = obj.get_absolute_url()
    d['indexed_on'] = int(time.time())
    d['username'] = obj.user.username
    d['display_name'] = obj.display_name
    d['twitter_usernames'] = obj.twitter_usernames
    d['last_contribution_date'] = obj.last_contribution_date
    d['iusername'] = obj.user.username.lower()
    d['idisplay_name'] = obj.display_name.lower()
    d['itwitter_usernames'] = [u.lower() for u in obj.twitter_usernames]
    from kitsune.users.templatetags.jinja_helpers import profile_avatar
    d['avatar'] = profile_avatar(obj.user, size=120)
    d['suggest'] = {'input': [d['iusername'], d['idisplay_name']], 'output': _(u'{displayname}    ({username})').format(displayname=d['display_name'], username=d['username']), 'payload': {'user_id': d['id']}}
    return d
