Re: [Zope] if object does not exist in python

13 Dec 2006


      ----- Original Message ----- 
From: "Andrew Milton" <akm@theinternet.com.au>
To: "Garito" <garito@sistes.net>
Cc: "zope" <Zope@zope.org>
Sent: Wednesday, December 13, 2006 9:40 AM
Subject: Re: [Zope] if object does not exist in python
...
+-------[ Garito ]----------------------
| Andrew Milton escribi?:
| >+-------[ David Bear ]----------------------
| >| Can anyone show me code examples of a script that checks for the
| >| existences of a named object?
| >
| >if namedObject in container.objectIds():
| >  # object exists
| >else:
| >  # doesn't
| >
| >
| >Checks for named object inside the container that the script is in.
| >
| >  
| hasattr(container, 'id')
That will acquire...
And the ever popular:

obj = context.restrictedTraverse('/path/to/object/objId', None)
if obj is None:
    # object not found
else:
    # object exists


Jonathan