Serialize BOMItem pricing information

- Account for quantity
- Prefetch required items

InvenTree/part/models.py

@@ -933,3 +933,19 @@ class BomItem(models.Model):
         base_quantity = self.quantity * build_quantity
 
         return base_quantity + self.get_overage_quantity(base_quantity)
+
+    @property
+    def price_range(self):
+        """ Return the price-range for this BOM item. """
+
+        prange = self.sub_part.get_price_range(self.quantity)
+
+        if prange is None:
+            return prange
+
+        pmin, pmax = prange
+
+        if pmin == pmax:
+            return str(pmin)
+
+        return "{pmin} to {pmax}".format(pmin=pmin, pmax=pmax)

InvenTree/part/serializers.py

@@ -122,6 +122,7 @@ class BomItemSerializer(InvenTreeModelSerializer):
 
     part_detail = PartBriefSerializer(source='part', many=False, read_only=True)
     sub_part_detail = PartBriefSerializer(source='sub_part', many=False, read_only=True)
+    price_range = serializers.CharField(read_only=True)
 
     @staticmethod
     def setup_eager_loading(queryset):
@@ -131,6 +132,7 @@ class BomItemSerializer(InvenTreeModelSerializer):
         queryset = queryset.prefetch_related('sub_part')
         queryset = queryset.prefetch_related('sub_part__category')
         queryset = queryset.prefetch_related('sub_part__stock_items')
+        queryset = queryset.prefetch_related('sub_part__suppliers__price_breaks')
         return queryset
 
     class Meta:
@@ -142,6 +144,7 @@ class BomItemSerializer(InvenTreeModelSerializer):
             'sub_part',
             'sub_part_detail',
             'quantity',
+            'price_range',
             'overage',
             'note',
         ]

InvenTree/static/script/inventree/bom.js

@@ -149,8 +149,22 @@ function loadBomTable(table, options) {
                 
                 return renderLink(text, row.sub_part_detail.url + "stock/");
             }
+        });
+
+        cols.push(
+        {
+            field: 'price_range',
+            title: 'Price',
+            sortable: true,
+            formatter: function(value, row, index, field) {
+                if (value) {
+                    return value;
+                } else {
+                    return "<span class='warning-msg'>No pricing available</span>";
                 }
-        );
+            }
+        });
+
     }
     
     // Part notes