network: host edit fixes

circle/network/static/js/network.js

@@ -8,8 +8,13 @@ $('i[class="icon-remove"]').click(function() {
     host = $('.page-header').children('h2').text()
     group = $(this).closest('h4').text();
 
+    if(group.length > 0) {
         text = gettext('Are you sure you want to remove host group <strong>"%(group)s"</strong> from <strong>"%(host)s"</strong>?');
         s = interpolate(text, {'group': group, 'host': host}, true);
+    } else {
+        s = gettext('Are you sure you want to delete this rule?');
+    }
+
     bootbox.dialog({
         message: s,
         buttons: {

circle/network/templates/network/host-edit.html

@@ -28,6 +28,7 @@
         <div class="page-header">
             <h3>{% trans "Groups" %}</h3>
         </div>
+        {% if group_rule_list|length > 0 %}
             {% for group in group_rule_list %}
             <div>
                 <h4 id="{{ group.pk }}_group_pk">{{ group.name }} 
@@ -39,6 +40,9 @@
                 {% render_table group.table %}
             </div>
             {% endfor %}
+        {% else %}
+            {% trans "This host is not added to any host groups!" %}
+        {% endif %}
 
     <div class="page-header">
         <h3>Add host group</h3>