Added id to select fields.

generate.py

@@ -123,7 +123,8 @@ class Model(object):
         relopts = kwargs
 
         if self.options.get('create_select', True):
-            relopts['select'] = ', '.join(model.accessible_attr)
+            relopts['select'] = PRIMARY_KEY + ', ' \
+                                + ', '.join(model.accessible_attr)
 
         return relopts