class VitrinaByKeys(Document):
word = StringField(verbose_name = u'слово',max_length=64)
case_id = StringField(verbose_name = u'витрина',max_length=64)
meta = {
'indexes' : ['word', 'case_id', ]
}
keyses=VitrinaByKeys.objects.filter(case_id = 'some_id')
keyses.delete()