# HG changeset patch
# User Lennard de Rijk <ljvderijk@gmail.com>
# Date 1228757493 0
# Node ID 51703b18ef2e691c7ab9770fa255416b8cb0a1e1
# Parent  3e2ce3d8057a9fdb106c1d999c01957a4a1f90f7
Adds the removal of requests from the datastore when a new role entity is created.

This uses the classname from the role entity as the type of role in the request.

Patch by: Lennard de Rijk

diff -r 3e2ce3d8057a -r 51703b18ef2e app/soc/logic/helper/request.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/soc/logic/helper/request.py	Mon Dec 08 17:31:33 2008 +0000
@@ -0,0 +1,54 @@
+#!/usr/bin/python2.5
+#
+# Copyright 2008 the Melange authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Functions that are useful when dealing with requests.
+"""
+
+__authors__ = [
+  '"Lennard de Rijk" <ljvderijk@gmail.com>',
+  ]
+
+
+import soc.logic.models as model_logic
+
+
+def removeRequestForRole(role_entity):
+  """Removes the request that leads to the creation of the given entity.
+  
+  Args:
+    role_entity : A datastore entity that is either a role or a subclass of the role model
+   
+  """
+  
+  # get the type of the role entity using the classname
+  role_type = role_entity.__class__.__name__
+  
+  # get the request logic so we can query the datastore
+  request_logic = model_logic.request.logic
+  
+  # create the query properties for the specific role
+  properties = {'scope' : role_entity.scope,
+      'link_id' : role_entity.link_id,
+      'role' : role_type.lower() }
+  
+  # get the request that complies with properties
+  request_entity = request_logic.getForFields(properties, unique=True)
+  
+  # delete the request from the datastore, if there is any
+  if request_entity:
+    request_logic.delete(request_entity)
+    
+    
\ No newline at end of file
diff -r 3e2ce3d8057a -r 51703b18ef2e app/soc/logic/models/role.py
--- a/app/soc/logic/models/role.py	Sun Dec 07 20:25:50 2008 +0000
+++ b/app/soc/logic/models/role.py	Mon Dec 08 17:31:33 2008 +0000
@@ -19,9 +19,11 @@
 
 __authors__ = [
   '"Sverre Rabbelier" <sverre@rabbelier.nl>',
+  '"Lennard de Rijk" <ljvderijk@gmail.com>',
   ]
 
 
+from soc.logic.helper import request
 from soc.logic.models import base
 
 import soc.models.role
@@ -38,6 +40,12 @@
 
     super(Logic, self).__init__(model, base_model=base_model,
                                 scope_logic=scope_logic)
+    
+  def _onCreate(self, entity):
+    """Will remove any outstanding requests for the new role entity.
+    """
+  
+    request.removeRequestForRole(entity)
 
 
 logic = Logic()