def create(self, validated_data):
text = validated_data.get('text', None)
dialog = validated_data.get('dialog', None)
if text is None or text == '':
raise serializers.ValidationError('Отсутствуют необходимые параметры!')
owners = dialog.owners.all()
if self.user not in owners:
raise PermissionDenied
message = Message()
message.owner = self.user
message.dialog = dialog
message.text = text
message.save()
dialog.last_message = message
dialog.save()
send_event('new_message', owners, MessageSerializer(message).data)
return message
