Add "purchase price" field to PurchaseOrderLineItem table

InvenTree/order/forms.py

@@ -175,6 +175,7 @@ class EditPurchaseOrderLineItemForm(HelperForm):
             'part',
             'quantity',
             'reference',
+            'purchase_price',
             'notes',
         ]
 

InvenTree/order/migrations/0038_auto_20201112_1737.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.0.7 on 2020-11-12 06:37
+
+from django.db import migrations
+import djmoney.models.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('order', '0037_auto_20201110_0911'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='purchaseorderlineitem',
+            name='purchase_price',
+            field=djmoney.models.fields.MoneyField(decimal_places=4, default_currency='USD', help_text='Unit purchase price', max_digits=19, null=True, verbose_name='Purchase Price'),
+        ),
+        migrations.AddField(
+            model_name='purchaseorderlineitem',
+            name='purchase_price_currency',
+            field=djmoney.models.fields.CurrencyField(choices=[('AUD', 'Australian Dollar'), ('CAD', 'Canadian Dollar'), ('EUR', 'Euro'), ('NZD', 'New Zealand Dollar'), ('GBP', 'Pound Sterling'), ('USD', 'US Dollar'), ('JPY', 'Yen')], default='USD', editable=False, max_length=3),
+        ),
+    ]

InvenTree/order/models.py

@@ -4,6 +4,10 @@ Order model definitions
 
 # -*- coding: utf-8 -*-
 
+import os
+from datetime import datetime
+from decimal import Decimal
+
 from django.db import models, transaction
 from django.db.models import F, Sum
 from django.db.models.functions import Coalesce
@@ -15,9 +19,7 @@ from django.utils.translation import ugettext as _
 
 from markdownx.models import MarkdownxField
 
-import os
+from djmoney.models.fields import MoneyField
-from datetime import datetime
-from decimal import Decimal
 
 from part import models as PartModels
 from stock import models as stock_models
@@ -499,6 +501,15 @@ class PurchaseOrderLineItem(OrderLineItem):
 
     received = models.DecimalField(decimal_places=5, max_digits=15, default=0, help_text=_('Number of items received'))
 
+    purchase_price = MoneyField(
+        max_digits=19,
+        decimal_places=4,
+        default_currency='USD',
+        null=True,
+        verbose_name=_('Purchase Price'),
+        help_text=_('Unit purchase price'),
+    )
+
     def remaining(self):
         """ Calculate the number of items remaining to be received """
         r = self.quantity - self.received

InvenTree/order/serializers.py

@@ -95,6 +95,8 @@ class POLineItemSerializer(InvenTreeModelSerializer):
     part_detail = PartBriefSerializer(source='get_base_part', many=False, read_only=True)
     supplier_part_detail = SupplierPartSerializer(source='part', many=False, read_only=True)
     
+    purchase_price_string = serializers.CharField(source='purchase_price', read_only=True)
+
     class Meta:
         model = PurchaseOrderLineItem
 
@@ -108,6 +110,9 @@ class POLineItemSerializer(InvenTreeModelSerializer):
             'part_detail',
             'supplier_part_detail',
             'received',
+            'purchase_price',
+            'purchase_price_currency',
+            'purchase_price_string',
         ]
 
 

InvenTree/order/templates/order/purchase_order_detail.html

@@ -178,6 +178,14 @@ $("#po-table").inventreeTable({
             field: 'quantity',
             title: '{% trans "Quantity" %}'
         },
+        {
+            sortable: true,
+            field: 'purchase_price',
+            title: '{% trans "Unit Price" %}',
+            formatter: function(value, row) {
+                return row.purchase_price_string || row.purchase_price;
+            }
+        },
         {
             sortable: true,
             field: 'received',