Implement POST for receiving items

- Create new StockItem in the correct location

InvenTree/stock/migrations/0006_stockitem_purchase_order.py

@@ -0,0 +1,20 @@
+# Generated by Django 2.2.2 on 2019-06-15 09:06
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('order', '0010_purchaseorderlineitem_notes'),
+        ('stock', '0005_auto_20190602_1944'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='stockitem',
+            name='purchase_order',
+            field=models.ForeignKey(blank=True, help_text='Purchase order for this stock item', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='stock_items', to='order.PurchaseOrder'),
+        ),
+    ]

InvenTree/stock/models.py

@@ -96,6 +96,7 @@ class StockItem(models.Model):
         delete_on_deplete: If True, StockItem will be deleted when the stock level gets to zero
         status: Status of this StockItem (ref: InvenTree.status_codes.StockStatus)
         notes: Extra notes field
+        purchase_order: Link to a PurchaseOrder (if this stock item was created from a PurchaseOrder)
         infinite: If True this StockItem can never be exhausted
     """
 
@@ -249,6 +250,14 @@ class StockItem(models.Model):
 
     updated = models.DateField(auto_now=True, null=True)
 
+    purchase_order = models.ForeignKey(
+        'order.PurchaseOrder', 
+        on_delete=models.SET_NULL,
+        related_name='stock_items',
+        blank=True, null=True,
+        help_text='Purchase order for this stock item'
+    )
+
     # last time the stock was checked / counted
     stocktake_date = models.DateField(blank=True, null=True)
 

InvenTree/stock/templates/stock/item.html

@@ -71,6 +71,12 @@
             <td>{{ item.batch }}</td>
         </tr>
         {% endif %}
+        {% if item.purchase_order %}
+        <tr>
+            <td>Purchase Order</td>
+            <td><a href="{% url 'purchase-order-detail' item.purchase_order.id %}">{{ item.purchase_order }}</a></td>
+        </tr>
+        {% endif %}
         {% if item.customer %}
         <tr>
             <td>Customer</td>