Render better build description in complete form

- List of items to be removed from stock
- Detail of what will be created

InvenTree/build/templates/build/complete.html

@@ -4,10 +4,21 @@
 <b>Build: {{ build.title }}</b> - {{ build.quantity }} x {{ build.part.name }}
 <br>
 Are you sure you want to mark this build as complete?
-<br>
-Completing the build will perform the following actions:
+<hr>
+{% if taking %}
+The following items will be removed from stock:
 <ul>
-    <li>Remove allocated parts from stock</li>
-    <li>Create {{ build.quantity }} new items in the selected location</li>
+{% for item in taking %}
+    <li>{{ item.quantity }} x {{ item.stock_item.part.name }} from {{ item.stock_item.location }}</li>
+{% endfor %}
 </ul>
+{% else %}
+No parts have been allocated to this build.
+{% endif %}
+<hr>
+The following items will be created:
+<ul>
+    <li>{{ build.quantity }} x {{ build.part.name }}</li>
+</ul>
+
 {% endblock %}

InvenTree/build/views.py

@@ -95,6 +95,7 @@ class BuildComplete(AjaxUpdateView):
         if build.part.default_location is not None:
             try:
                 location = StockLocation.objects.get(pk=build.part.default_location.id)
+                initials['location'] = location
             except StockLocation.DoesNotExist:
                 pass
 
@@ -106,8 +107,15 @@ class BuildComplete(AjaxUpdateView):
         - Build information is required
         """
 
+        build = self.get_object()
+
+        # Build object
         context = super(BuildComplete, self).get_context_data(**kwargs).copy()
-        context['build'] = self.get_object() 
+        context['build'] = build
+
+        # Items to be removed from stock
+        taking = BuildItem.objects.filter(build=build.id)
+        context['taking'] = taking
 
         return context