Part table filtering

- Filter by active status
- Filter by 'is_template' status
- Filter by 'has_stock'
- Allow cascading sublocations
- API improvements to allow new features

InvenTree/part/api.py

@@ -215,6 +215,21 @@ class PartList(generics.ListCreateAPIView):
             building=Sum('builds__quantity', filter=build_filter),
         )
 
+        # If we are filtering by 'has_stock' status, 
+        # Check if the 'has_stock' quantity is zero
+        has_stock = self.request.query_params.get('has_stock', None)
+
+        if has_stock is not None:
+            has_stock = str2bool(has_stock)
+
+            if has_stock:
+                # Filter items which have a non-null 'in_stock' quantity above zero
+                data = data.exclude(in_stock=None)
+                data = data.filter(in_stock__gt=0)
+            else:
+                # Filter items which a null or zero 'in_stock' quantity
+                data = data.filter(Q(in_stock__lte=0) | Q(in_stock=None))
+
         # Reduce the number of lookups we need to do for the part categories
         categories = {}
 

InvenTree/part/models.py

@@ -659,7 +659,7 @@ class Part(models.Model):
         if total:
             return total
         else:
-            return 0
+            return Decimal(0)
 
     @property
     def has_bom(self):

InvenTree/part/templates/part/category.html

@@ -99,7 +99,7 @@
     <div class='button-toolbar container-fluid' style="float: right;">
         <button class='btn btn-default' id='part-export' title='Export Part Data'>Export</button>
         <button class='btn btn-success' id='part-create'>New Part</button>
-        <div class='dropdown' style='float: right;'>
+        <div class='btn dropdown'>
             <button id='part-options' class='btn btn-primary dropdown-toggle' type='button' data-toggle="dropdown">Options<span class='caret'></span></button>
             <ul class='dropdown-menu'>
                 <li><a href='#' id='multi-part-category' title='Set category'>Set Category</a></li>
@@ -107,6 +107,9 @@
                 <li><a href='#' id='multi-part-export' title='Export'>Export Data</a></li>
             </ul>
         </div>
+        <div class='filter-list' id='filter-list-parts'>
+            <!-- Empty div -->
+        </div>
     </div>
 </div>