Don't show Save Defaults button if no user is logged in.

tailbone/newgrids/core.py

@@ -231,6 +231,8 @@ class Grid(object):
         """
         Check to see if the current user has default settings on file for this grid.
         """
+        if not self.request.user:
+            return False
         # User defaults should have all or nothing, so just check one key.
         key = 'tailbone.{0}.grid.{1}.sortkey'.format(self.request.user.uuid, self.key)
         return get_setting(Session(), key) is not None
@@ -517,6 +519,7 @@ class Grid(object):
 
         form = filters.GridFiltersForm(self.request, self.filters, defaults=data)
 
+        kwargs['request'] = self.request
         kwargs['grid'] = self
         kwargs['form'] = filters.GridFiltersFormRenderer(form)
         return render(template, kwargs)

tailbone/templates/newgrids/filters.mako

@@ -29,7 +29,9 @@
       </select>
       ${form.tag('button', type='button', id='default-filters', c="Default Filters")}
       ${form.tag('button', type='button', id='clear-filters', c="Clear Filters")}
-      ${form.tag('button', type='button', id='save-defaults', c="Save Defaults")}
+      % if request.user:
+          ${form.tag('button', type='button', id='save-defaults', c="Save Defaults")}
+      % endif
     </div>
 
   ${form.end()}