Reorganizando e corrigindo filtros personalizados

sigi/admin/filterspecs.py

@@ -3,6 +3,7 @@ from django.utils.encoding import smart_unicode
 from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext as _
 from sigi.apps.contatos.models import UnidadeFederativa
+from abc import ABCMeta
 
 class AlphabeticFilterSpec(ChoicesFilterSpec):
     """
@@ -39,7 +40,28 @@ class AlphabeticFilterSpec(ChoicesFilterSpec):
 FilterSpec.filter_specs.insert(0, (lambda f: getattr(f, 'alphabetic_filter', False),
                                    AlphabeticFilterSpec))
 
-class MunicipioUFFilterSpec(ChoicesFilterSpec):
+class UFFilterSpec(ChoicesFilterSpec):
+    """  
+    This is an abstract class and customs filters by 'Uf' have to extend this class.
+    """
+    __metaclass__ = ABCMeta
+    def __init__(self, f, request, params, model, model_admin):
+        super(UFFilterSpec, self).__init__(f, request, params, model, 
+                                             model_admin)
+        
+    def choices(self, cl):
+        yield {'selected': self.lookup_val is None,
+                'query_string': cl.get_query_string({}, [self.lookup_kwarg]),
+                'display': _('All')}
+        for val in self.lookup_choices:
+            yield {'selected': smart_unicode(val.codigo_ibge) == self.lookup_val,
+                    'query_string': cl.get_query_string({self.lookup_kwarg: val.codigo_ibge}),
+                    'display': val.nome}
+    def title(self):
+        return _('UF') % \
+            {'field_name': self.field.verbose_name}
+
+class MunicipioUFFilterSpec(UFFilterSpec):
     """
     Usage:
 
@@ -58,58 +80,31 @@ class MunicipioUFFilterSpec(ChoicesFilterSpec):
         self.lookup_val = request.GET.get(self.lookup_kwarg, None)
         self.lookup_choices = UnidadeFederativa.objects.all().order_by('nome')
 
-    def choices(self, cl):
-        yield {'selected': self.lookup_val is None,
-                'query_string': cl.get_query_string({}, [self.lookup_kwarg]),
-                'display': _('All')}
-        for val in self.lookup_choices:
-            yield {'selected': smart_unicode(val.codigo_ibge) == self.lookup_val,
-                    'query_string': cl.get_query_string({self.lookup_kwarg: val.codigo_ibge}),
-                    'display': val.nome}
-    def title(self):
-        return _('UF') % \
-            {'field_name': self.field.verbose_name}
 
 # registering the filter
 FilterSpec.filter_specs.insert(0, (lambda f: getattr(f, 'uf_filter', False),
                              MunicipioUFFilterSpec))
 
-class ConvenioUFFilterSpec(ChoicesFilterSpec):
+class ConvenioUFFilterSpec(UFFilterSpec):
     """
     Usage:
 
-      municipio.uf_filter = True
+      my_casa_legislativa_field.convenio_uf_filter = True
 
     On Django 1.3 you will can specify a lookup on admin filters. Example:
 
-      list_filter = ('municipio__uf',)
+      list_filter = ('casa_legislativa__municipio__uf',)
 
     """
-
     def __init__(self, f, request, params, model, model_admin):
-        super(ConvenioUFFilterSpec, self).__init__(f, request, params, model,
+        super(ConvenioUFFilterSpec, self).__init__(f, request, params, model, model_admin)
-                                                    model_admin)
         self.lookup_kwarg = '%s__municipio__uf__codigo_ibge__exact' % f.name
         self.lookup_val = request.GET.get(self.lookup_kwarg, None)
         self.lookup_choices = UnidadeFederativa.objects.all().order_by('nome')
 
-    def choices(self, cl):
+FilterSpec.filter_specs.insert(0, (lambda f: getattr(f, 'convenio_uf_filter', False),
-        yield {'selected': self.lookup_val is None,
-                'query_string': cl.get_query_string({}, [self.lookup_kwarg]),
-                'display': _('All')}
-        for val in self.lookup_choices:
-            yield {'selected': smart_unicode(val.codigo_ibge) == self.lookup_val,
-                    'query_string': cl.get_query_string({self.lookup_kwarg: val.codigo_ibge}),
-                    'display': val.nome}
-    def title(self):
-        return _('UF') % \
-            {'field_name': self.field.verbose_name}
-
-# registering the filter
-FilterSpec.filter_specs.insert(0, (lambda f: getattr(f, 'uf_filter', False),
 ConvenioUFFilterSpec))
 
-
 class RangeValuesFilterSpec(FilterSpec):
     """
     Author: Willie Gollino (wgollino@yahoo.com)