--- a/doc/book/en/devrepo/datamodel/definition.rst	Tue Sep 13 14:41:53 2011 +0200
+++ b/doc/book/en/devrepo/datamodel/definition.rst	Tue Sep 13 14:48:24 2011 +0200
@@ -646,68 +646,7 @@
   RelationType declaration which offers some advantages in the context
   of reusable cubes.
 
-Definition of permissions
-~~~~~~~~~~~~~~~~~~~~~~~~~~
-The entity type `CWPermission` from the standard library
-allows to build very complex and dynamic security architectures. The schema of
-this entity type is as follow:
-
-.. sourcecode:: python
-
-    class CWPermission(EntityType):
-        """entity type that may be used to construct some advanced security configuration
-        """
-        name = String(required=True, indexed=True, internationalizable=True, maxsize=100)
-        require_group = SubjectRelation('CWGroup', cardinality='+*',
-                                        description=_('groups to which the permission is granted'))
-        require_state = SubjectRelation('State',
-                                        description=_("entity's state in which the permission is applicable"))
-        # can be used on any entity
-        require_permission = ObjectRelation('**', cardinality='*1', composite='subject',
-                                            description=_("link a permission to the entity. This "
-                                                          "permission should be used in the security "
-                                                          "definition of the entity's type to be useful."))
-
-
-Example of configuration:
-
-.. sourcecode:: python
-
-    class Version(EntityType):
-        """a version is defining the content of a particular project's release"""
-
-        __permissions__ = {'read':   ('managers', 'users', 'guests',),
-                           'update': ('managers', 'logilab', 'owners',),
-                           'delete': ('managers', ),
-                           'add':    ('managers', 'logilab',
-                                       ERQLExpression('X version_of PROJ, U in_group G,'
-                                                 'PROJ require_permission P, P name "add_version",'
-                                                 'P require_group G'),)}
-
-
-    class version_of(RelationType):
-        """link a version to its project. A version is necessarily linked to one and only one project.
-        """
-        __permissions__ = {'read':   ('managers', 'users', 'guests',),
-                           'delete': ('managers', ),
-                           'add':    ('managers', 'logilab',
-                                  RRQLExpression('O require_permission P, P name "add_version",'
-                                                 'U in_group G, P require_group G'),)
-                       }
-        inlined = True
-
-
-This configuration indicates that an entity `CWPermission` named
-"add_version" can be associated to a project and provides rights to create
-new versions on this project to specific groups. It is important to notice that:
-
-* in such case, we have to protect both the entity type "Version" and the relation
-  associating a version to a project ("version_of")
-
-* because of the genericity of the entity type `CWPermission`, we have to execute
-  a unification with the groups and/or the states if necessary in the expression
-  ("U in_group G, P require_group G" in the above example)
-
+  
 
 
 Handling schema changes