Allow django admin filter to be hidable (https://code.djangoproject.com/ticket/15935, https://code.djangoproject.com/attachment/ticket/15935/patch_hide_admin_filter.diff)

patch_hide_admin_filter.diff

Index: django/contrib/admin/templates/admin/change_list.html
===================================================================
--- django/contrib/admin/templates/admin/change_list.html	(revisión: 16133)
+++ django/contrib/admin/templates/admin/change_list.html	(copia de trabajo)
@@ -27,6 +27,18 @@
 (function($) {
     $(document).ready(function($) {
         $("tr input.action-select").actions();
+
+        $('#display-filter').click(function(event) {
+            $('#changelist').addClass('filtered');
+            $('#changelist-filter').show('slow');
+            $('#display-filter').hide('slow');
+        });
+        $('#change-title').click(function(event) {
+            $('#changelist').removeClass('filtered');
+            $('#changelist-filter').hide('slow');
+            $('#display-filter').show('slow');
+        });
+
     });
 })(django.jQuery);
 </script>
@@ -80,8 +92,12 @@
 
       {% block filters %}
         {% if cl.has_filters %}
+        <h2 id="display-filter" style="display:none">
+            {% trans 'Filter' %}:
+            {% for spec in cl.filter_specs %} {{ spec.title }}{{ spec.choices }}{% endfor %}
+        </h2>
           <div id="changelist-filter">
-            <h2>{% trans 'Filter' %}</h2>
+            <h2 id="change-title">{% trans 'Filter' %}</h2>
             {% for spec in cl.filter_specs %}{% admin_list_filter cl spec %}{% endfor %}
           </div>
         {% endif %}