[Zope-CMF] set the id of a new cmf object in the factory method

[Dieter Maurer]

Aaron Payne writes:
 > I'm trying to set the id of a new cmf object in the factory method and 
 > I'm hitting a wall.
 > I need to get an attribute of the cmf site and then increment it by 1.
 > In the factory method I have:
 > 
 > def addBibliography(self, id , title='', bibliography_reference_id='', 
 > volume='', search_words=''):
 >      """Create an empty bibliography."""
 > 
 >      portal_url = getToolByName(self, 'portal_url')
 >      currentN=portal_url.bibliography_reference_count
 >      newN=currentN+1
 >      id='BIB'+str(newN)
 >      bibliography_reference_id=id
You should return the new id.

 > ...
 > When I attempt to add an object to a folder I receive an AttributeError.
We need "Error Type" (provided) and "Error Value" (missing) beside
the traceback (provided).

 > Traceback (innermost last):
 > ...
 > 514, in constructInstance
 >      (Object: Bibliography)
 >    File /usr/local/zope/Zope2.5.1/lib/python/OFS/ObjectManager.py, line 
 > 232, in _getOb
"constructInstance" passed in an "id".
It expects either

  *  the the object is created with the given id
or
  *  the factory method returns the id it created the object with

You also need to use "_setObject" (or something similar) to
put the new object in the ObjectManager passed as first argument
to the factory method.


Dieter