patch chat

chat/models.py

@@ -10,6 +10,7 @@ class ChatChannelModel(models.Model):
 		self.save()
 		for user_id in users_id:
 			ChatMemberModel(channel_id = self.pk, member_id = user_id).save()
+		return self.pk
 
 	def get_members_id(self):
 		return [member_channel.member_id for member_channel in ChatMemberModel.objects.filter(channel_id = self.pk)]