Add grid, CRUD views for Setting model.

This required some tweaks to the base CRUD view etc.

tailbone/grids/alchemy.py

@@ -1,9 +1,8 @@
-#!/usr/bin/env python
-# -*- coding: utf-8  -*-
+# -*- coding: utf-8 -*-
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2012 Lance Edgar
+#  Copyright © 2010-2014 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -21,11 +20,20 @@
 #  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.
 #
 ################################################################################
-
 """
 FormAlchemy Grid Classes
 """
 
+from __future__ import unicode_literals
+
+from sqlalchemy.orm import object_session
+
+try:
+    from sqlalchemy.inspection import inspect
+except ImportError:
+    inspect = None
+    from sqlalchemy.orm import class_mapper
+
 from webhelpers.html import tags
 from webhelpers.html import HTML
 
@@ -36,7 +44,6 @@ from edbob.util import prettify
 
 from .core import Grid
 from ..db import Session
-from sqlalchemy.orm import object_session
 
 __all__ = ['AlchemyGrid']
 
@@ -78,14 +85,18 @@ class AlchemyGrid(Grid):
         return HTML.tag('th', class_=class_, field=field.key,
                         title=self.column_titles.get(field.key), c=label)
 
-    def view_route_kwargs(self, row):
-        return {'uuid': row.uuid}
+    def crud_route_kwargs(self, row):
+        if inspect:
+            mapper = inspect(row.__class__)
+        else:
+            mapper = class_mapper(row.__class__)
+        keys = [k.key for k in mapper.primary_key]
+        values = [getattr(row, k) for k in keys]
+        return dict(zip(keys, values))
 
-    def edit_route_kwargs(self, row):
-        return {'uuid': row.uuid}
-
-    def delete_route_kwargs(self, row):
-        return {'uuid': row.uuid}
+    view_route_kwargs = crud_route_kwargs
+    edit_route_kwargs = crud_route_kwargs
+    delete_route_kwargs = crud_route_kwargs
 
     def iter_fields(self):
         return self._formalchemy_grid.render_fields.itervalues()