Implemented API to move multiple items at once

- Added ability to override request method in inventreeUpdate
- Added inventree/script/stock.js to handle stock API js 
- Added StockMove API endpoint

InvenTree/stock/api.py

@@ -13,6 +13,12 @@ from .serializers import LocationSerializer
 from InvenTree.views import TreeSerializer
 from InvenTree.serializers import DraftRUDView
 
+from rest_framework.serializers import ValidationError
+from rest_framework.views import APIView
+from rest_framework.response import Response
+from rest_framework import authentication, permissions
+from django.contrib.auth.models import User
+
 class StockCategoryTree(TreeSerializer):
     title = 'Stock'
     model = StockLocation
@@ -45,6 +51,54 @@ class StockFilter(FilterSet):
         fields = ['quantity', 'part', 'location']
 
 
+class StockMove(APIView):
+
+    permission_classes = [
+        permissions.IsAuthenticatedOrReadOnly,
+    ]
+
+    def post(self, request, *args, **kwargs):
+
+        data = request.data
+
+        if not u'location' in data:
+            raise ValidationError({'location': 'Destination must be specified'})
+
+        loc_id = data.get(u'location')
+
+        try:
+            location = StockLocation.objects.get(pk=loc_id)
+        except StockLocation.DoesNotExist:
+            raise ValidationError({'location': 'Location does not exist'})
+
+        if not u'parts[]' in data:
+            raise ValidationError({'parts[]': 'Parts list must be specified'})
+
+        part_list = data.getlist(u'parts[]')
+
+        parts = []
+
+        errors = []
+
+        for pid in part_list:
+            try:
+                part = StockItem.objects.get(pk=pid)
+                parts.append(part)
+            except StockItem.DoesNotExist:
+                errors.append({'part': 'Part {id} does not exist'.format(id=part_id)})
+
+        if len(errors) > 0:
+            raise ValidationError(errors)
+
+        for part in parts:
+            part.move(location, request.user)
+
+        return Response({'success': 'Moved {n} parts to {loc}'.format(
+            n=len(parts),
+            loc=location.name
+        )})
+
+
 class StockLocationList(generics.ListCreateAPIView):
 
     queryset = StockLocation.objects.all()
@@ -167,6 +221,8 @@ stock_api_urls = [
 
     url(r'location/(?P<pk>\d+)/', include(location_endpoints)),
 
+    url(r'move/?', StockMove.as_view(), name='api-stock-move'),
+
     url(r'^tree/?', StockCategoryTree.as_view(), name='api-stock-tree'),
 
     url(r'^.*$', StockList.as_view(), name='api-stock-list'),

InvenTree/stock/models.py

@@ -192,6 +192,23 @@ class StockItem(models.Model):
 
         track.save()
 
+    @transaction.atomic
+    def move(self, location, user):
+
+        if location == self.location:
+            return
+
+        note = "Moved to {loc}".format(loc=location.name)
+
+        self.location = location
+        self.save()
+
+        self.add_transaction_note('Transfer',
+                                  user,
+                                  notes=note,
+                                  system=True)
+
+
     @transaction.atomic
     def stocktake(self, count, user):
         """ Perform item stocktake.

InvenTree/stock/templates/stock/location.html

@@ -61,6 +61,7 @@
 {% block js_load %}
 {{ block.super }}
 <script type='text/javascript' src="{% static 'script/inventree/api.js' %}"></script>
+<script type='text/javascript' src="{% static 'script/inventree/stock.js' %}"></script>
 <script type='text/javascript' src="{% static 'script/modal_form.js' %}"></script>
 {% endblock %}
 {% block js_ready %}
@@ -125,9 +126,12 @@
 
         var items = selectedStock();
 
-        alert('Moving ' + items.length + ' items');
-
-        return false;
+        moveStock(items,
+                  {
+                      success: function() {
+                          $("#stock-table").bootstrapTable('refresh');
+                      }
+                  });
     });
 
     $("#multi-item-delete").click(function() {