# Net::LDAP::Control::PostRead - phpMan

## NAME
    [Net::LDAP::Control::PostRead] - LDAPv3 Post-Read control object

## SYNOPSIS
     use [Net::LDAP];
     use [Net::LDAP::Control::PostRead];
     use [Net::LDAP::Constant] qw( LDAP_CONTROL_POSTREAD LDAP_SUCCESS );

     $ldap = [Net::LDAP]->new( "ldap.mydomain.eg" );

     $postread = [Net::LDAP::Control::PostRead]->new( attrs => [ qw/givenName/ ] );

     my $mesg = $ldap->modify( "cn=Barbara Jensen, o=University of Michigan, c=US",
                               replace => { givenName => "Babs" },
                               control => $postread );

     if ($mesg->code eq LDAP_SUCCESS) {
       my ($afterwards) = $mesg->control( LDAP_CONTROL_PREREAD );
       my $entry = $afterwards ? $afterwards->entry() : undef;

       if ($entry) {
         print "givenName changed to '" .
               join("', '", $entry->get_value(givenName") .
               "' to 'Babs'\n");
       }
     }

## DESCRIPTION
    "[Net::LDAP::Control::PostRead]" provides an interface for the creation
    and manipulation of objects that represent the "Post-Read Controls" as
    described by RFC 4527.

    In modification operations, the "Post-Read request control" indicates to
    the server that a copy of the modified entry after the update is to be
    returned. After the successful completion of the operation, the
    accompanying "Post-Read response control" allows one to retrieve the
    updated value from the server's response.

    One use case of this control may be to obtain values of operational
    attributes, such as the "entryUUID" and "modifyTimestamp" attributes,
    updated by the server as part of the update operation.

## CONSTRUCTOR ARGUMENTS
    In addition to the constructor arguments described in [Net::LDAP::Control]
    the following are provided.

    attrs => [ ATTR, ... ]
        A list of attributes to be returned in the entry returned in the
        response control.

        If absent, all attributes are returned.

        Operational attributes may be included in the list by explicitly
        asking for them or by using special "+" feature (provided the server
        supports this feature).

## METHODS
    As with [Net::LDAP::Control] each constructor argument described above is
    also available as a method on the object which will return the current
    value for the attribute if called without an argument, and set a new
    value for the attribute if called with an argument.

    In addition to these methods, the control also supports the following
    method:

    entry ()
        Returns the entry from the response control in the response message
        to the LDAP request that contained the request control.

        The result is either a [Net::LDAP::Entry] object or undefined.

## SEE ALSO
    [Net::LDAP], [Net::LDAP::Control], <http://www.ietf.org/rfc/rfc4527.txt>

## AUTHOR
    Peter Marschall <<peter@adpm.de>>

    Please report any bugs, or post any suggestions, to the perl-ldap
    mailing list <<perl-ldap@perl.org>>

## COPYRIGHT
    Copyright (c) 2008,2011 Peter Marschall. All rights reserved. This
    program is free software; you can redistribute it and/or modify it under
    the same terms as Perl itself.