add purchace limitations system for rancher - add incentive plans to rancher entries data

apps/product/services/services.py

@@ -22,10 +22,25 @@ def quota_live_stock_allocation_info(quota: Quota) -> typing.Any:
 
     allocations = quota.livestock_allocations.filter(quota=quota)
 
-    allocations_list = [{
-        "name": alloc.livestock_type.name,
-        "quantity": alloc.quantity_kg
-    } for alloc in allocations]
+    if allocations:
+        allocations_list = [{
+            "name": alloc.livestock_type.name,
+            "quantity": alloc.quantity_kg
+        } for alloc in allocations]
 
-    return allocations_list
+        return allocations_list
 
+
+def quota_incentive_plans_info(quota: Quota) -> typing.Any:
+    """ information of quota incentive plans """
+
+    incentive_plans = quota.incentive_assignments.all()
+
+    if incentive_plans:
+        incentive_plans_list = [{
+            'name': plan.incentive_plan.name,
+            'heavy_value': plan.heavy_value,
+            'light_value': plan.light_value
+        } for plan in incentive_plans]
+
+        return incentive_plans_list