for ldap returning different values for the same attribute? out of the box,
no.
Ldap->search returns a string.
http://search.cpan.org/~marschap/perl-ldap-0.53/lib/Net/LDAP.pod

relevant code in CustomerUser/LDAP.pm
 my %Users;
    for my $entry ( $Result->all_entries() ) {

        my $CustomerString = '';
        for my $Field (@attrs) {

            my $FieldValue = $entry->get_value($Field); # <==
http://search.cpan.org/~marschap/perl-ldap-0.53/lib/Net/LDAP/Entry.pod *
            $FieldValue = defined $FieldValue ? $FieldValue : '';

            $CustomerString .= $Self->_ConvertFrom($FieldValue) . ' ';
        }

        my $KeyValue = $entry->get_value( $Self->{CustomerKey} );
        $KeyValue = defined $KeyValue ? $KeyValue : '';

        $Users{ $Self->_ConvertFrom($KeyValue) } = $CustomerString;
    }

* $FieldValue will be the first value for the $Field attribute

changing
my $FieldValue = $entry->get_value($Field);
to
my $FieldValue = $entry->get_value($Field, asref => 1);

makes it a reference to an array.
to deref
@{ $FieldValue };

to make it a CSV list:
$FieldValue = join( ',', @{ $FieldValue } );

http://www.perlmonks.org/?node_id=30279

At least, that's what I'd consider doing. Haven't tried it. Your results
may vary.


On Sun, Feb 24, 2013 at 9:40 AM, GARDAIS Ionel <[email protected]>wrote:

>  Hi list,
>
>  According to the doc, CustomerIDs can be pulled from a LDAP customer
> backend if the declared attribute contains a list of customer ids separated
> by commas. (see
> http://doc.otrs.org/3.2/en/html/external-backends.html#multi-customer-ids-ldap
> )
>
>  We use an ActiveDirectory as user repository an plan to use the
> directReports/manager attributes.
> That is, for a manager, asking for the directReports attribute return a
> list of reporters.
>
>  Is it possible to set the LDAP attribute to an attribute that returns
> multiple values ?
> I guess if not, I should try to adapt Kernel/System/CustomerUser/LDAP.pm
> for that purpose by myself ?
>
>  Thanks for your feedback,
> Ionel
>
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