add company code to organization serialzier

apps/product/models.py

@@ -294,6 +294,12 @@ class Quota(BaseModel):
 
         return factor_total + broker_total + coop + factory
 
+    @property
+    def remaining_quota_weight(self):
+        """ calculate remaining quota weight after distribution """
+        distributed_weight = self.distributions_assigned.aggregate(total=models.Sum("weight"))["total"] or 0
+        return self.quota_weight - distributed_weight
+
     def save(self, calculate_final_price=None, *args, **kwargs):
         if not self.quota_id:
             self.quota_id = self.generate_quota_id()
@@ -424,4 +430,3 @@ class QuotaDistribution(BaseModel):
 
     def save(self, *args, **kwargs):
         return super(QuotaDistribution, self).save(*args, **kwargs)
-