Add functionality to return stock item from customer

InvenTree/stock/forms.py

@@ -46,6 +46,18 @@ class AssignStockItemToCustomerForm(HelperForm):
         ]
 
 
+class ReturnStockItemForm(HelperForm):
+    """
+    Form for manually returning a StockItem into stock
+    """
+
+    class Meta:
+        model = StockItem
+        fields = [
+            'location',
+        ]
+
+
 class EditStockItemTestResultForm(HelperForm):
     """
     Form for creating / editing a StockItemTestResult object.

InvenTree/stock/models.py

@@ -495,6 +495,23 @@ class StockItem(MPTTModel):
         # Return the reference to the stock item
         return item
 
+    def returnFromCustomer(self, location, user=None):
+        """
+        Return stock item from customer, back into the specified location.
+        """
+
+        self.addTransactionNote(
+            _("Returned from customer") + " " + self.customer.name,
+            user,
+            notes=_("Returned to location") + " " + location.name,
+            system=True
+        )
+
+        self.customer = None
+        self.location = location
+
+        self.save()
+
     # If stock item is incoming, an (optional) ETA field
     # expected_arrival = models.DateField(null=True, blank=True)
 

InvenTree/stock/templates/stock/item_base.html

@@ -354,7 +354,6 @@ $("#unlink-barcode").click(function() {
 
 {% if item.in_stock %}
 
-{% if item.part.salable %}
 $("#stock-assign-to-customer").click(function() {
     launchModalForm("{% url 'stock-item-assign' item.id %}",
         {
@@ -362,7 +361,6 @@ $("#stock-assign-to-customer").click(function() {
         }
     );
 });
-{% endif %}
 
 function itemAdjust(action) {
     launchModalForm("/stock/adjust/", 
@@ -403,6 +401,16 @@ $('#stock-add').click(function() {
     itemAdjust('add');
 });
 
+{% else %}
+
+$("#stock-return-from-customer").click(function() {
+    launchModalForm("{% url 'stock-item-return' item.id %}",
+        {
+            reload: true,
+        }
+    );
+});
+
 {% endif %}
 
 $("#stock-delete").click(function () {

InvenTree/stock/urls.py

@@ -24,6 +24,7 @@ stock_item_detail_urls = [
     url(r'^qr_code/', views.StockItemQRCode.as_view(), name='stock-item-qr'),
     url(r'^delete_test_data/', views.StockItemDeleteTestData.as_view(), name='stock-item-delete-test-data'),
     url(r'^assign/', views.StockItemAssignToCustomer.as_view(), name='stock-item-assign'),
+    url(r'^return/', views.StockItemReturnToStock.as_view(), name='stock-item-return'),
 
     url(r'^add_tracking/', views.StockItemTrackingCreate.as_view(), name='stock-tracking-create'),
 

InvenTree/stock/views.py

@@ -260,6 +260,41 @@ class StockItemAssignToCustomer(AjaxUpdateView):
         return self.renderJsonResponse(request, self.get_form(), data)
 
 
+class StockItemReturnToStock(AjaxUpdateView):
+    """
+    View for returning a stock item (which is assigned to a customer) to stock.
+    """
+
+    model = StockItem
+    ajax_form_title = _("Return to Stock")
+    context_object_name = "item"
+    form_class = StockForms.ReturnStockItemForm
+
+    def post(self, request, *args, **kwargs):
+
+        location = request.POST.get('location', None)
+
+        if location:
+            try:
+                location = StockLocation.objects.get(pk=location)
+            except (ValueError, StockLocation.DoesNotExist):
+                location = None
+
+        if location:
+            stock_item = self.get_object()
+
+            stock_item.returnFromCustomer(location, request.user)
+        else:
+            raise ValidationError({'location': _("Specify a valid location")})
+
+        data = {
+            'form_valid': True,
+            'success': _("Stock item returned from customer")
+        }
+
+        return self.renderJsonResponse(request, self.get_form(), data)
+
+
 class StockItemDeleteTestData(AjaxUpdateView):
     """
     View for deleting all test data