Added MultiSelectFieldListFilter

demo_app/app/adminx.py

@@ -74,7 +74,7 @@ def open_web(self, instance):
 
     search_fields = ['name', 'ip', 'description']
     list_filter = ['idc', 'guarantee_date', 'status', 'brand', 'model',
-                   'cpu', 'core_num', 'hard_disk', 'memory', 'service_type']
+                   'cpu', 'core_num', 'hard_disk', 'memory', ('service_type',xadmin.filters.MultiSelectFieldListFilter)]
 
     list_bookmarks = [{'title': "Need Guarantee", 'query': {'status__exact': 2}, 'order': ('-guarantee_date',), 'cols': ('brand', 'guarantee_date', 'service_type')}]
 

xadmin/filters.py

@@ -419,6 +419,39 @@ def choices(self):
                 'display': EMPTY_CHANGELIST_VALUE,
             }
 
+@manager.register
+class MultiSelectFieldListFilter(ListFieldFilter):
+    """ Delegates the filter to the default filter and ors the results of each
+     
+    Lists the distinct values of each field as a checkbox
+    Uses the default spec for each 
+     
+    """
+    template = 'xadmin/filters/checklist.html'
+    lookup_formats = {'in': '%s__in'}
+
+    @classmethod
+    def test(cls, field, request, params, model, admin_view, field_path):
+        return True
+
+    def __init__(self, field, request, params, model, model_admin, field_path):
+        super(MultiSelectFieldListFilter,self).__init__(field, request, params, model, model_admin, field_path)
+        self.lookup_choices = [x[0] for x in self.admin_view.queryset().order_by(field_path).values_list(field_path).distinct().exclude(**{"%s__isnull"%field_path:True}) if str(x[0]).strip()!=""]#field.get_choices(include_blank=False)
+
+    def choices(self):
+        self.lookup_in_val = (type(self.lookup_in_val) in (tuple,list)) and self.lookup_in_val or list(self.lookup_in_val)
+        yield {
+            'selected': len(self.lookup_in_val) == 0,
+            'query_string': self.query_string({},[self.lookup_in_name]),
+            'display': _('All'),
+        }
+        for val in self.lookup_choices:
+            yield {
+                'selected': smart_unicode(val) in self.lookup_in_val,
+                'query_string': self.query_string({self.lookup_in_name: ",".join([val]+self.lookup_in_val),}),
+                'remove_query_string': self.query_string({self.lookup_in_name: ",".join([v for v in self.lookup_in_val if v != val]),}),
+                'display': val,
+            }
 
 @manager.register
 class AllValuesFieldListFilter(ListFieldFilter):

xadmin/templates/xadmin/filters/checklist.html

@@ -0,0 +1,14 @@
+{% load i18n %}
+<li class="dropdown-submenu">
+  <a><i class="icon-filter {% if spec.is_used %}text-success{%else%}text-muted{% endif %}"></i> {{ title }}</a>
+  <ul class="dropdown-menu">
+    {% for choice in choices %}
+        <li{% if choice.selected %} class="active"{% endif %}>
+        	<a href="{% if choice.selected %}{{ choice.remove_query_string|iriencode }}{% else %}{{ choice.query_string|iriencode }}{% endif %}">
+        		<input type="checkbox" {% if choice.selected %} checked="checked"{% endif %}>
+        		{{ choice.display }}
+        	</a>
+        </li>
+    {% endfor %}
+  </ul>
+</li>