optimize load balance for inventory list in pos - add new fields to stake holdes

apps/pos_device/models.py

@@ -1,13 +1,11 @@
-import random
-import string
-
-from apps.authentication.models import Organization
-from apps.product.models import Broker
-from apps.product.models import Product
+from apps.product.models import Product, Broker, QuotaBrokerValue
 from django.contrib.postgres.fields import ArrayField
 from apps.authorization.models import UserRelations
+from apps.authentication.models import Organization
 from apps.core.models import BaseModel
 from django.db import models
+import random
+import string
 
 
 class ProviderCompany(BaseModel):
@@ -258,6 +256,18 @@ class StakeHolders(BaseModel):
         related_name='pos_stake_holders',
         null=True
     )
+    broker = models.ForeignKey(
+        Broker,
+        on_delete=models.CASCADE,
+        related_name='pos_stake_holders',
+        null=True
+    )
+    broker_amount = models.ForeignKey(
+        QuotaBrokerValue,
+        on_delete=models.CASCADE,
+        related_name='pos_stake_holders',
+        null=True
+    )
     share_percent = models.FloatField(default=0)
     default = models.BooleanField(default=False)
 
@@ -295,29 +305,3 @@ class POSFreeProducts(BaseModel):
 
     def save(self, *args, **kwargs):
         return super(POSFreeProducts, self).save(*args, **kwargs)
-
-
-class BrokerStakeHolderAssignment(BaseModel):
-    device = models.ForeignKey(
-        Device,
-        on_delete=models.CASCADE,
-        related_name="stake_brok_assigment",
-        null=True
-    )
-    stake_holder = models.ForeignKey(
-        StakeHolders,
-        on_delete=models.CASCADE,
-        related_name='stake_brok_assignment',
-        null=True
-    )
-    broker = models.ForeignKey(
-        Broker,
-        on_delete=models.CASCADE,
-        related_name='stake_brok_assignment',
-        null=True
-    )
-    
-    def save(self, *args, **kwargs):
-        return super(BrokerStakeHolderAssignment, self).save(*args, **kwargs)
-
-