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

## NAME
    [Net::LDAP::Control::PostRead](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AControl%3A%3APostRead/markdown) - LDAPv3 Post-Read control object

## SYNOPSIS
     use [Net::LDAP](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP/markdown);
     use [Net::LDAP::Control::PostRead](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AControl%3A%3APostRead/markdown);
     use [Net::LDAP::Constant](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AConstant/markdown) qw( LDAP_CONTROL_POSTREAD LDAP_SUCCESS );

     $ldap = [Net::LDAP](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP/markdown)->new( "ldap.mydomain.eg" );

     $postread = [Net::LDAP::Control::PostRead](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AControl%3A%3APostRead/markdown)->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](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AControl%3A%3APostRead/markdown)" 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](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AControl/markdown) 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](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AControl/markdown) 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](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AEntry/markdown) object or undefined.

## SEE ALSO
    [Net::LDAP](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP/markdown), [Net::LDAP::Control](https://www.chedong.com/phpMan.php/perldoc/Net%3A%3ALDAP%3A%3AControl/markdown), <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.