pyramid autocomplete renderer

pyramid_formalchemy/__init__.py

@@ -120,6 +120,7 @@ def formalchemy_admin(config, route_name,
                     request_method='GET',
                     permission='new',
                     **kw)
+
     config.add_view(context='pyramid_formalchemy.resources.ModelListing',
                     renderer='pyramid_formalchemy:templates/admin/new.pt',
                     attr='create',
@@ -134,6 +135,7 @@ def formalchemy_admin(config, route_name,
                     request_method='GET',
                     permission='edit',
                     **kw)
+
     config.add_view(context='pyramid_formalchemy.resources.Model',
                     renderer='pyramid_formalchemy:templates/admin/edit.pt',
                     name='edit',
@@ -141,6 +143,7 @@ def formalchemy_admin(config, route_name,
                     request_method='POST',
                     permission='edit',
                     **kw)
+
     config.add_view(context='pyramid_formalchemy.resources.Model',
                     renderer='json',
                     name='',
@@ -156,6 +159,7 @@ def formalchemy_admin(config, route_name,
                     request_method='POST',
                     permission='delete',
                     **kw)
+
     config.add_view(context='pyramid_formalchemy.resources.Model',
                     renderer='pyramid_formalchemy:templates/admin/edit.pt',
                     attr='delete',
@@ -171,3 +175,10 @@ def formalchemy_admin(config, route_name,
                     attr='show',
                     **kw)
 
+    config.add_view(context='pyramid_formalchemy.resources.ModelListing',
+                    attr='autocomplete',
+                    name='autocomplete',
+                    request_method='GET',
+                    permission='view',
+                    **kw)
+

pyramid_formalchemy/views.py

@@ -390,3 +390,12 @@ class ModelView(object):
             return exc.HTTPFound(location=request.fa_url(request.model_name))
         return self.render(id=request.model_id)
 
+    def autocomplete(self, *args, **kwargs):
+        filter_term = "%s%%" % self.request.params.get('term')
+        filter_attr = getattr(self.request.model_class, self.request.params.get('filter_by'))
+        query = self.session.query(self.request.model_class.id, filter_attr).filter(filter_attr.ilike(filter_term))
+        items = self.request.query_factory(self.request, query)
+        return Response(json.dumps([{'label' : x[1],
+                                     'value' : x[0]} for x in items ]),
+                        content_type='text/plain')
+