fix - remove child_total / not self.instanceto validate in distribution serializer

apps/herd/pos/api/v1/api.py

@@ -149,5 +149,5 @@ class RancherViewSet(viewsets.ModelViewSet, DynamicSearchMixin):
             return Response(serializer.data, status=status.HTTP_200_OK)
         else:
             return Response({
-                "message": "rancher has not existence"
+                "message": "دامدار با کد ملی مد نظر وجود ندارد"  # noqa
             }, status=status.HTTP_404_NOT_FOUND)

apps/product/web/api/v1/serializers/quota_distribution_serializers.py

@@ -66,7 +66,7 @@ class QuotaDistributionSerializer(serializers.ModelSerializer):
                 if total + amount > quota.quota_weight:
                     raise QuotaWeightException()
             else:
-                if parent_distribution.remaining_weight + amount > parent_distribution.remaining_weight:
+                if amount > parent_distribution.remaining_weight:
                     raise QuotaWeightException()
 
         if self.instance:
@@ -80,7 +80,7 @@ class QuotaDistributionSerializer(serializers.ModelSerializer):
                 raise APIException("وزن وارد شده کمتر از وزن ورودی به انبار است", code=403)  # noqa
 
             if self.instance.parent_distribution:
-                if self.instance.parent_distribution.remaining_weight + amount > self.instance.parent_distribution.remaining_weight:
+                if amount > self.instance.parent_distribution.remaining_weight:
                     raise QuotaWeightException()
 
             # if weight is more than distribution remaining weight
@@ -88,7 +88,7 @@ class QuotaDistributionSerializer(serializers.ModelSerializer):
                 if amount + total > self.instance.quota.quota_weight:
                     raise APIException("وزن وارد شده بیشتر از وزن باقیمانده است", code=403)  # noqa
             else:
-                if self.instance.parent_distribution.remaining_weight + amount > self.instance.parent_distribution.remaining_weight:
+                if amount > self.instance.parent_distribution.remaining_weight:
                     raise QuotaWeightException()
 
         return data