Show warning when un-attached policies exist

passbook/admin/templates/administration/policy/list.html

@@ -28,6 +28,7 @@
     <table class="table table-striped table-bordered">
         <thead>
             <tr>
+                <th></th>
                 <th>{% trans 'Name' %}</th>
                 <th>{% trans 'Type' %}</th>
                 <th></th>
@@ -35,7 +36,14 @@
         </thead>
         <tbody>
             {% for policy in object_list %}
-            <tr>
+            <tr {% if not policy.policymodel_set.exists %} class="warning" {% endif %}>
+                <th>
+                    {% if not policy.policymodel_set.exists %}
+                    <span class="pficon-warning-triangle-o" data-toggle="tooltip" data-placement="right" title="{% trans 'Warning: Policy is not assigned.' %}"></span>
+                    {% else %}
+                    <span class="pficon-ok" data-toggle="tooltip" data-placement="right" title="{% blocktrans with objects=policy.policymodel_set.all|join:', ' %}Assigned to objects {{ objects }}{% endblocktrans %}"></span>
+                    {% endif %}
+                </th>
                 <td>{{ policy.name }}</td>
                 <td>{{ policy|verbose_name }}</td>
                 <td>