[SQLObject] Re: SQLObject inheritance patch 2

[Daniel S. <sa...@gn...>]

Hello Oleg,

    I tried your test with MySQL and PostGreSQL under Python 2.2.3 and 
2.3.3 and it worked well. 
    What database are you using ?

    Did you create the table (createTable method) ?

    You should add theses two lines after class creation:
Woman.createTable(1)
Wilma.createTable(1)

    I tried your sample without creating the table and get the same 
problem as your.
    Adding theses two lines just after the class creation corrected it.

Daniel Savard

Oleg Broytmann wrote:

>Hi!
>
>   I tried a simplest test.
>
>import SQLObject
>from db import db_conn
>
>
>class Woman(SQLObject.SQLObject):
>   _inheritable = 1
>   _connection = db_conn
>
>   name = SQLObject.StringCol()
>
>
>class Wilma(Woman):
>   smile = SQLObject.IntCol()
>
>
>wilma = Wilma.new(name="Wilma", smile=1)
>barney = Barney.new(passion=wilma)
>
>woman = Woman(1)
>print woman # prints <Wilma 1 childName=None smile=1>, ok
>print woman.smile # => 1
>print woman.name
>
>Traceback (most recent call last):
>  File "test.py", line 10, in ?
>    print woman.name
>  File "<string>", line 1, in <lambda>
>AttributeError: 'Wilma' object has no attribute '_parent'
>
>   Oops. I found many places in the code where _parent attribute is
>used, but only one where it is assigned - in new(). Shouldn't it be
>assigned in __new__ too?
>
>Oleg.
>  
>