Index: trunk/packages/sipb-xen-database/sipb-xen-database/sipb_xen_database/models.py
===================================================================
--- trunk/packages/sipb-xen-database/sipb-xen-database/sipb_xen_database/models.py	(revision 237)
+++ trunk/packages/sipb-xen-database/sipb-xen-database/sipb_xen_database/models.py	(revision 238)
@@ -56,8 +56,16 @@
        Column('description', String, nullable=False))
 
+machine_access_table = Table('machine_access', meta,
+       Column('machine_id', Integer, ForeignKey('machines.machine_id'), nullable=False, index=True),
+       Column('user', String, nullable=False, index=True),
+       PrimaryKeyConstraint('machine_id', 'user'))
 
 class Machine(object):
     def __repr__(self):
         return "<Machine %s: name='%s' owner='%s'>" % (self.machine_id, self.name, self.owner)
+
+class MachineAccess(object):
+    def __repr__(self):
+        return "<MachineAccess machine='%s' user='%s'>" % (self.machine, self.user)
 
 class NIC(object):
@@ -92,8 +100,9 @@
               properties={'nics': relation(NIC, backref="machine"),
                           'disks': relation(Disk, backref="machine"),
-                          'type': relation(Type)});
+                          'type': relation(Type),
+                          'users': relation(MachineAccess, backref="machine")});
+assign_mapper(ctx, MachineAccess, machine_access_table)
 assign_mapper(ctx, NIC, nic_table)
 assign_mapper(ctx, Disk, disk_table)
 assign_mapper(ctx, Type, types_table)
 assign_mapper(ctx, CDROM, cdroms_table)
-