group/migrations/0037_auto_20170821_1600.py

@@ -0,0 +1,19 @@

                +# -*- coding: utf-8 -*-
              

                +# Generated by Django 1.11.3 on 2017-08-21 08:00
              

                +from __future__ import unicode_literals
              

                +
              

                +from django.db import migrations
              

                +
              

                +
              

                +class Migration(migrations.Migration):
              

                +
              

                +    dependencies = [
              

                +        ('group', '0036_groupphotoinfo_has_watermark'),
              

                +    ]
              

                +
              

                +    operations = [
              

                +        migrations.AlterUniqueTogether(
              

                +            name='groupinfo',
              

                +            unique_together=set([('session_id', 'group_from')]),
              

                +        ),
              

                +    ]
              

group/models.py

@@ -55,6 +55,8 @@ class GroupInfo(CreateUpdateMixin):

                         verbose_name = _(u'groupinfo')
              

                         verbose_name_plural = _(u'groupinfo')
              

                 
              

                +        unique_together = (('session_id', 'group_from'),)
              

                +
              

                     def __unicode__(self):
              

                         return unicode(self.group_id)