[Zope] Re: PYTHON: Searching for an object inside a folder

16 Oct 2002


      Vitor Varalonga wrote:
...
Hi!
I need to check, inside a Python script, if an object with a
particular ID exists inside a folder.
    Right now I'm using the following code:
# this is the folder I want to search
    myFolder = container.REQUEST.PARENTS[0].img_folder
# search the folder for an object with ID <object_id>
    obj = getattr(myFolder, object_id, None)
    if obj is not None:
        # there is no such object
    else:
        # there is an object with that id
Is there a more efficient way to perform this operation?
hi,

untested..;-), but should work:

if hasattr(myFolder.aq_explicit,object_id):
    # there is an object with object_id
else:
      there is no object with object_id

myFolder.aq_explicit prevents aquiring from above...;-)

cheers, maik
-- 
Maik Jablonski                 __o
www.zfl.uni-bielefeld.de     _ \<_    Deutsche Zope User Group
Bielefeld, Germany          (_)/(_)               www.dzug.org