Delete things implemented (can't believe I forgot that...)

boxes/views.py

@@ -373,6 +373,21 @@ def delete_box(request, box_id):
     return redirect('box_management')
 
 
+@login_required
+def delete_thing(request, thing_id):
+    """Delete a thing and its associated files."""
+    thing = get_object_or_404(Thing, pk=thing_id)
+    if request.method == 'POST':
+        box_id = thing.box.id
+        if thing.picture:
+            thing.picture.delete(save=False)
+        for thing_file in thing.files.all():
+            thing_file.file.delete(save=False)
+        thing.delete()
+        return redirect('box_detail', box_id=box_id)
+    return redirect('edit_thing', thing_id=thing_id)
+
+
 @login_required
 def resources_list(request):
     """List all links and files from things that have them."""