Added AutocompleteView.

rattail/pyramid/views/__init__.py

@@ -27,6 +27,7 @@
 """
 
 from rattail.pyramid.views.crud import *
+from rattail.pyramid.views.autocomplete import *
 
 
 def includeme(config):

rattail/pyramid/views/autocomplete.py

@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+# -*- coding: utf-8  -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2012 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free
+#  Software Foundation, either version 3 of the License, or (at your option)
+#  any later version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU Affero General Public License
+#  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+
+"""
+``rattail.pyramid.views.autocomplete`` -- Autocomplete View
+"""
+
+from edbob.pyramid.views import View
+from edbob.pyramid import Session
+
+
+__all__ = ['AutocompleteView']
+
+
+class AutocompleteView(View):
+
+    def filter_query(self, q):
+        return q
+
+    def make_query(self, query):
+        q = Session.query(self.mapped_class)
+        q = self.filter_query(q)
+        q = q.filter(getattr(self.mapped_class, self.fieldname).ilike('%%%s%%' % query))
+        q = q.order_by(getattr(self.mapped_class, self.fieldname))
+        return q
+
+    def query(self, query):
+        return self.make_query(query)
+
+    def display(self, instance):
+        return getattr(instance, self.fieldname)
+
+    def __call__(self):
+        term = self.request.params.get('term')
+        if term:
+            term = term.strip()
+        if not term:
+            return []
+        results = self.query(term).all()
+        return [{'label': self.display(x), 'value': x.uuid} for x in results]