your test program definitely works, and theres also a new unit test at the bottom of test/orm/inheritance.py (InheritTest7) based on your example which passes.

On Jun 23, 2006, at 12:10 AM, Tim Van Steenburgh wrote:

Not sure what's goin on, but I checked out 1653 and get the exact same error. ? :(

On 6/22/06, Michael Bayer < [EMAIL PROTECTED]> wrote:
the 'roles' attribute on the "User" and "Admin" mappers (inheriting properties copy across a hierarchy) were both trying to insert a row...added some more uniqueness + unittest to fix, revision 1653.

On Jun 22, 2006, at 5:04 PM, Tim Van Steenburgh wrote:

import sqlalchemy.mods.threadlocal
from sqlalchemy import *

sqlite = 'sqlite:///:memory:' 

db = create_engine(sqlite,
    strategy='plain',
    echo=True
)

metadata = BoundMetaData(db)


################################################################################
# TABLE DEFS 
################################################################################

users = Table('user', metadata,
    Column('id', Integer, primary_key=True),
    Column('first_name', String(64)),
    Column('last_name', String(64)), 
    Column('email', String(128)),
    Column('password', String(16)),
    Column('is_active', Boolean)
)

roles = Table('role', metadata,
    Column('id', Integer, primary_key=True),
    Column('description', String(32)) 
)

user_roles = Table('user_role', metadata,
    Column('user_id', Integer, ForeignKey('user.id'), primary_key=True),
    Column('role_id', Integer, ForeignKey(' role.id'), primary_key=True)
)

admins = Table('admin', metadata,
    Column('id', Integer, primary_key=True),
    Column('user_id', Integer, ForeignKey(' user.id'))
)


################################################################################
# CLASS DEFS
################################################################################
        
class User(object): 
    def __init__(self, fname=None, lname=None, email=None, is_active=1):
        self.first_name = fname
        self.last_name = lname
        self.email = email
        self.is_active = is_active
         
    def has_role(self, role_name):
        if role_name in [role.description for role in self.roles]:
            return True
        else:
            return False
        
class Role(object):
    def __init__(self, description=None): 
        self.description = description
        
class UserRole(object): pass

class Admin(User):
    def __init__(self, fname=None, lname=None, email=None, is_active=1):
        User.__init__(self, fname, lname, email, is_active) 
        # give user 'admin' role
        self.roles.append(Query(Role).get_by(description='admin'))
     
     
################################################################################
# MAPPER DEFS 
################################################################################

role_mapper = mapper(Role, roles)

user_mapper = mapper(User, users, properties = {
        'roles' : relation(Role, secondary=user_roles, lazy=False, private=False)  
    }
)

admin_mapper = mapper(Admin, admins, inherits=user_mapper)


################################################################################
# MAIN
################################################################################  

if __name__ == "__main__":
    # create tables
    users.create()
    roles.create()
    user_roles.create()
    admins.create()

    # create roles
    adminrole = Role('admin')
    clientrole = Role('client')
    adjusterrole = Role('adjuster')

    objectstore.flush()
    
    # create admin user
    a = Admin('Tim',
        'Van Steenburgh',
        ' [EMAIL PROTECTED]'
    )
    a.password = 'admin'

    objectstore.flush()



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