diff -r fbfab570a276 -r 1cba3393ba01 schemas/base.py
--- a/schemas/base.py	Mon Jun 22 14:20:46 2009 +0200
+++ b/schemas/base.py	Tue Jun 23 13:31:16 2009 +0200
@@ -6,11 +6,15 @@
 :license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
 """
 __docformat__ = "restructuredtext en"
+_ = unicode
 
+from yams.buildobjs import (EntityType, RelationType, SubjectRelation,
+                            String, Boolean, Datetime)
+from cubicweb.schema import RQLConstraint
+from cubicweb.schemas import META_ETYPE_PERMS, META_RTYPE_PERMS
 
 class CWUser(WorkflowableEntityType):
     """define a CubicWeb user"""
-    meta = True # XXX backported from old times, shouldn't be there anymore
     permissions = {
         'read':   ('managers', 'users', ERQLExpression('X identity U')),
         'add':    ('managers',),
@@ -35,7 +39,7 @@
                                description=_('groups grant permissions to the user'))
 
 
-class EmailAddress(MetaEntityType):
+class EmailAddress(EntityType):
     """an electronic mail address associated to a short alias"""
     permissions = {
         'read':   ('managers', 'users', 'guests',), # XXX if P use_email X, U has_read_permission P
@@ -81,11 +85,11 @@
         'delete': ('managers', RRQLExpression('U has_update_permission S'),),
         }
 
-class in_group(MetaRelationType):
+class in_group(RelationType):
     """core relation indicating a user's groups"""
-    meta = False
+    permissions = META_RTYPE_PERMS
 
-class owned_by(MetaRelationType):
+class owned_by(RelationType):
     """core relation indicating owners of an entity. This relation
     implicitly put the owner into the owners group for the entity
     """
@@ -100,7 +104,7 @@
     subject = '**'
     object = 'CWUser'
 
-class created_by(MetaRelationType):
+class created_by(RelationType):
     """core relation indicating the original creator of an entity"""
     permissions = {
         'read':   ('managers', 'users', 'guests'),
@@ -114,13 +118,13 @@
     object = 'CWUser'
 
 
-class creation_date(MetaAttributeRelationType):
+class creation_date(RelationType):
     """creation time of an entity"""
     cardinality = '11'
     subject = '**'
     object = 'Datetime'
 
-class modification_date(MetaAttributeRelationType):
+class modification_date(RelationType):
     """latest modification time of an entity"""
     cardinality = '11'
     subject = '**'
@@ -137,7 +141,6 @@
         'update': ('managers', 'owners',),
         'delete': ('managers', 'owners',),
         }
-    meta = True
     # key is a reserved word for mysql
     pkey = String(required=True, internationalizable=True, maxsize=256,
                   description=_('defines what\'s the property is applied for. '
@@ -152,7 +155,7 @@
                                              ' a global property'))
 
 
-class for_user(MetaRelationType):
+class for_user(RelationType):
     """link a property to the user which want this property customization. Unless
     you're a site manager, this relation will be handled automatically.
     """
@@ -164,9 +167,11 @@
     inlined = True
 
 
-class CWPermission(MetaEntityType):
+class CWPermission(EntityType):
     """entity type that may be used to construct some advanced security configuration
     """
+    permissions = META_ETYPE_PERMS
+
     name = String(required=True, indexed=True, internationalizable=True, maxsize=100,
                   description=_('name or identifier of the permission'))
     label = String(required=True, internationalizable=True, maxsize=100,
@@ -186,7 +191,7 @@
         'delete': ('managers',),
         }
 
-class require_group(MetaRelationType):
+class require_group(RelationType):
     """used to grant a permission to a group"""
     permissions = {
         'read':   ('managers', 'users', 'guests'),
@@ -200,7 +205,7 @@
     symetric = True
 
 
-class CWCache(MetaEntityType):
+class CWCache(EntityType):
     """a simple cache entity characterized by a name and
     a validity date.
 
@@ -212,7 +217,7 @@
     permissions = {
         'read':   ('managers', 'users', 'guests'),
         'add':    ('managers',),
-        'update': ('managers', 'users',),
+        'update': ('managers', 'users',), # XXX
         'delete': ('managers',),
         }