On 7/6/06 9:25, Young, Darren <[EMAIL PROTECTED]> wrote:
>
> How can/should I change one value in a multivalued attribue? The
> attribute I have in question is mailAlternateAddress of which there can
> be any number of them attached to a given dn. As in:
>
> dn: uid=testacct,ou=people,o=gsb,dc=uchicago,dc=edu
> mailAlternateAddress: [EMAIL PROTECTED]
> mailAlternateAddress: [EMAIL PROTECTED]
> mailAlternateAddress: [EMAIL PROTECTED]
>
> $ldap->modify or $ldap->replace? Or is it a delete the old and add a
> new?
You need a modify operation that deletes the old value and adds a new value.
> If I do:
>
> replace => [ mailAlternateAddress => '[EMAIL PROTECTED]']
>
> That'll replace all the others with that one.
Yes.
> Say I want to change the [EMAIL PROTECTED] to [EMAIL PROTECTED] in
> the above example, I could (but should I):
>
> $entry->delete ( 'mailAlternateAddress' => [ '[EMAIL PROTECTED]' ] );
> $entry->add ( 'mailAlternateAddress' => [ '[EMAIL PROTECTED]' ] );
Yes. I don't tend to use the Net::LDAP::Entry class much myself, but I
believe that will do the right thing. You should be able to pass the single
values being deleted/added as simple scalars rather than wrapping them
inside an array.
You will need to call $entry->update($ldap) after this.
Don't forget that you can do these exact modifications in a single protocol
exchange with the server. There's no need to do a read/mangle/modify cycle.
So something like this should also work and avoid the extra round trip:
$ldap->modify("uid=testacct,ou=people,o=gsb,dc=uchicago,dc=edu",
delete => { mailAternateAddress => '[EMAIL PROTECTED]' },
add => { mailAternateAddress => '[EMAIL PROTECTED]' });
(It would also work (and read/mangle/modify would not) in the situation
where you had permission to modify the values but not read the values.
Password attributes are often like this, though I suspect something like
mailAlternateAddress wouldn't be :-)
> Or is there a way to use the replace => an existing attribute/value pair
> with a new value method?
No, the "replace" modification type affects *all* the values of the
attribute. Delete and add is what you want.
Cheers,
Chris
