diff -r 1bb43e31032d -r a14b6562082b schemas/base.py
--- a/schemas/base.py	Tue Feb 14 15:14:22 2012 +0100
+++ b/schemas/base.py	Tue Jul 10 15:07:23 2012 +0200
@@ -181,31 +181,6 @@
     cardinality = '?*'
 
 
-class CWPermission(EntityType):
-    """entity type that may be used to construct some advanced security configuration
-    """
-    __permissions__ = PUB_SYSTEM_ENTITY_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,
-                   description=_('distinct label to distinguate between other '
-                                 'permission entity of the same name'))
-    require_group = SubjectRelation('CWGroup',
-                                    description=_('groups to which the permission is granted'))
-
-# explicitly add X require_permission CWPermission for each entity that should have
-# configurable security
-class require_permission(RelationType):
-    """link a permission to the entity. This permission should be used in the
-    security definition of the entity's type to be useful.
-    """
-    __permissions__ = PUB_SYSTEM_REL_PERMS
-
-class require_group(RelationType):
-    """used to grant a permission to a group"""
-    __permissions__ = PUB_SYSTEM_REL_PERMS
-
 
 class ExternalUri(EntityType):
     """a URI representing an object in external data store"""
@@ -330,6 +305,24 @@
     cardinality = '1*'
     composite = 'object'
 
+
+class CWDataImport(EntityType):
+    __permissions__ = ENTITY_MANAGERS_PERMISSIONS
+    start_timestamp = TZDatetime()
+    end_timestamp = TZDatetime()
+    log = String()
+    status = String(required=True, internationalizable=True, indexed=True,
+                    default='in progress',
+                    vocabulary=[_('in progress'), _('success'), _('failed')])
+
+class cw_import_of(RelationDefinition):
+    __permissions__ = RELATION_MANAGERS_PERMISSIONS
+    subject = 'CWDataImport'
+    object = 'CWSource'
+    cardinality = '1*'
+    composite = 'object'
+
+
 class CWSourceSchemaConfig(EntityType):
     __permissions__ = ENTITY_MANAGERS_PERMISSIONS
     cw_for_source = SubjectRelation(
@@ -382,3 +375,5 @@
         'add':    ('managers', RRQLExpression('U has_update_permission S'),),
         'delete': ('managers', RRQLExpression('U has_update_permission S'),),
         }
+
+