More hungry fetching

InvenTree/build/models.py

@@ -139,7 +139,7 @@ class Build(models.Model):
 
         allocations = []
 
-        for item in self.part.bom_items.all():
+        for item in self.part.bom_items.all().prefetch_related('sub_part'):
 
             # How many parts required for this build?
             q_required = item.quantity * self.quantity
@@ -216,7 +216,7 @@ class Build(models.Model):
         - Delete pending BuildItem objects
         """
 
-        for item in self.allocated_stock.all():
+        for item in self.allocated_stock.all().prefetch_related('stock_item'):
             
             # Subtract stock from the item
             item.stock_item.take_stock(
@@ -295,7 +295,7 @@ class Build(models.Model):
         """ Returns a dict of parts required to build this part (BOM) """
         parts = []
 
-        for item in self.part.bom_items.all():
+        for item in self.part.bom_items.all().prefetch_related('sub_part'):
             part = {'part': item.sub_part,
                     'per_build': item.quantity,
                     'quantity': item.quantity * self.quantity,

InvenTree/part/models.py

@@ -532,7 +532,7 @@ class Part(models.Model):
 
         hash = hashlib.md5(str(self.id).encode())
 
-        for item in self.bom_items.all().prefetch('sub_part'):
+        for item in self.bom_items.all().prefetch_related('sub_part'):
             hash.update(str(item.sub_part.id).encode())
             hash.update(str(item.sub_part.full_name).encode())
             hash.update(str(item.quantity).encode())

InvenTree/part/serializers.py

@@ -125,6 +125,9 @@ class BomItemSerializer(InvenTreeModelSerializer):
 
     @staticmethod
     def setup_eager_loading(queryset):
+        queryset = queryset.prefetch_related('part')
+        queryset = queryset.prefetch_related('part__category')
+        queryset = queryset.prefetch_related('part__stock_items')
         queryset = queryset.prefetch_related('sub_part')
         queryset = queryset.prefetch_related('sub_part__category')
         queryset = queryset.prefetch_related('sub_part__stock_items')