fixed model for rights

pboard/pboard/model/auth.py

     created = Column(DateTime, default=datetime.now)
     personnal_group = Column(Boolean)
     users = relation('User', secondary=user_group_table, backref='groups')
-    rights = relation('Rights', secondary=group_node_table, backref='groups')
 
     def __repr__(self):
         return '<Group: name=%s>' % repr(self.group_name)
         hash.update((password + self.password[:64]).encode('utf-8'))
         return self.password[64:] == hash.hexdigest()
 
+class Rights(DeclarativeBase):
+    __tablename__ = 'pod_group_node'
+
+    group_id = Column(Integer, ForeignKey('pod_group.group_id'), autoincrement=True, primary_key=True)
+    node_id = Column(Integer, ForeignKey('pod_nodes.node_id'), autoincrement=True, primary_key=True)
+    rights = Column(Integer)
+
+    groups = relation('PBNode')
+
 class Permission(DeclarativeBase):
     """
     Permission definition.

pboard/pboard/model/data.py

 - data_status_id
 """
 
+
 class PBNodeStatusItem(object):
   def __init__(self, psStatusId, psStatusLabel, psStatusFamily, psIconId, psCssClass): #, psBackgroundColor):
     self._sStatusId     = psStatusId
   data_file_mime_type = Column(Unicode(255),  unique=False, nullable=False, default='')
   data_file_content   = sqlao.deferred(Column(LargeBinary(), unique=False, nullable=False, default=None))
 
+  rights = relation('Rights')
 
   _oParent = relationship('PBNode', remote_side=[node_id], backref='_lAllChildren')
-  rights = relation('Rights', secondary=group_node_table, backref='nodes')
   _oOwner = relationship('User', remote_side=[pma.User.user_id], backref='_lAllNodes')
 
   def getChildrenOfType(self, plNodeTypeList, poKeySortingMethod=None, pbDoReverseSorting=False):
     # FIXME - D.A. - 2013-09-12
     # Does not match @@ at end of content.
 
-
-
-# This is the association table for the many-to-many relationship between groups and nodes
-group_node_table = Table('pod_group_node', metadata,
-        Column('group_id', Integer, ForeignKey('pod_group.group_id',
-            onupdate="CASCADE", ondelete="CASCADE"), primary_key=True),
-        Column('node_id', Integer, ForeignKey('pod_nodes.node_id',
-            onupdate="CASCADE", ondelete="CASCADE"), primary_key=True),
-        Column('rights', Integer)
-)