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+# BEGIN BPS TAGGED BLOCK {{{
+#
+# COPYRIGHT:
+#
+# This software is Copyright (c) 1996-2007 Best Practical Solutions, LLC
+# <jesse@bestpractical.com>
+#
+# (Except where explicitly superseded by other copyright notices)
+#
+#
+# LICENSE:
+#
+# This work is made available to you under the terms of Version 2 of
+# the GNU General Public License. A copy of that license should have
+# been provided with this software, but in any event can be snarfed
+# from www.gnu.org.
+#
+# This work is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 or visit their web page on the internet at
+# http://www.gnu.org/copyleft/gpl.html.
+#
+#
+# CONTRIBUTION SUBMISSION POLICY:
+#
+# (The following paragraph is not intended to limit the rights granted
+# to you to modify and distribute this software under the terms of
+# the GNU General Public License and is only of importance to you if
+# you choose to contribute your changes and enhancements to the
+# community by submitting them to Best Practical Solutions, LLC.)
+#
+# By intentionally submitting any modifications, corrections or
+# derivatives to this work, or any other work intended for use with
+# Request Tracker, to Best Practical Solutions, LLC, you confirm that
+# you are the copyright holder for those contributions and you grant
+# Best Practical Solutions, LLC a nonexclusive, worldwide, irrevocable,
+# royalty-free, perpetual, license to use, copy, create derivative
+# works based on those contributions, and sublicense and distribute
+# those contributions and any derivatives thereof.
+#
+# END BPS TAGGED BLOCK }}}
+=head1 NAME
+
+ RT::Link - an RT Link object
+
+=head1 SYNOPSIS
+
+ use RT::Link;
+
+=head1 DESCRIPTION
+
+This module should never be called directly by client code. it's an internal module which
+should only be accessed through exported APIs in Ticket other similar objects.
+
+=head1 METHODS
+
+
+=begin testing
+
+
+use RT::Link;
+my $link = RT::Link->new($RT::SystemUser);
+
+
+ok (ref $link);
+ok (UNIVERSAL::isa($link, 'RT::Link'));
+ok (UNIVERSAL::isa($link, 'RT::Base'));
+ok (UNIVERSAL::isa($link, 'RT::Record'));
+ok (UNIVERSAL::isa($link, 'DBIx::SearchBuilder::Record'));
+
+=end testing
+
+=cut
+
+
+package RT::Link;
+
+use strict;
+no warnings qw(redefine);
+
+
+use Carp;
+use RT::URI;
+
+
+# {{{ sub Create
+
+=head2 Create PARAMHASH
+
+Create a new link object. Takes 'Base', 'Target' and 'Type'.
+Returns undef on failure or a Link Id on success.
+
+=cut
+
+sub Create {
+ my $self = shift;
+ my %args = ( Base => undef,
+ Target => undef,
+ Type => undef,
+ @_ );
+
+ my $base = RT::URI->new( $self->CurrentUser );
+ $base->FromURI( $args{'Base'} );
+
+ unless ( $base->Resolver && $base->Scheme ) {
+ my $msg = $self->loc("Couldn't resolve base '[_1]' into a URI.",
+ $args{'Base'});
+ $RT::Logger->warning( "$self $msg\n" );
+
+ if (wantarray) {
+ return(undef, $msg);
+ } else {
+ return (undef);
+ }
+ }
+
+ my $target = RT::URI->new( $self->CurrentUser );
+ $target->FromURI( $args{'Target'} );
+
+ unless ( $target->Resolver ) {
+ my $msg = $self->loc("Couldn't resolve target '[_1]' into a URI.",
+ $args{'Target'});
+ $RT::Logger->warning( "$self $msg\n" );
+
+ if (wantarray) {
+ return(undef, $msg);
+ } else {
+ return (undef);
+ }
+ }
+
+ my $base_id = 0;
+ my $target_id = 0;
+
+
+
+
+ if ( $base->IsLocal ) {
+ unless (UNIVERSAL::can($base->Object, 'Id')) {
+ return (undef, $self->loc("[_1] appears to be a local object, but can't be found in the database", $args{'Base'}));
+
+ }
+ $base_id = $base->Object->Id;
+ }
+ if ( $target->IsLocal ) {
+ unless (UNIVERSAL::can($target->Object, 'Id')) {
+ return (undef, $self->loc("[_1] appears to be a local object, but can't be found in the database", $args{'Target'}));
+
+ }
+ $target_id = $target->Object->Id;
+ }
+
+ # {{{ We don't want references to ourself
+ if ( $base->URI eq $target->URI ) {
+ return ( 0, $self->loc("Can't link a ticket to itself") );
+ }
+
+ # }}}
+
+ my ( $id, $msg ) = $self->SUPER::Create( Base => $base->URI,
+ Target => $target->URI,
+ LocalBase => $base_id,
+ LocalTarget => $target_id,
+ Type => $args{'Type'} );
+ return ( $id, $msg );
+}
+
+# }}}
+ # {{{ sub LoadByParams
+
+=head2 LoadByParams
+
+ Load an RT::Link object from the database. Takes three parameters
+
+ Base => undef,
+ Target => undef,
+ Type =>undef
+
+ Base and Target are expected to be integers which refer to Tickets or URIs
+ Type is the link type
+
+=cut
+
+sub LoadByParams {
+ my $self = shift;
+ my %args = ( Base => undef,
+ Target => undef,
+ Type => undef,
+ @_ );
+
+ my $base = RT::URI->new($self->CurrentUser);
+ $base->FromURI( $args{'Base'} );
+
+ my $target = RT::URI->new($self->CurrentUser);
+ $target->FromURI( $args{'Target'} );
+
+ unless ($base->Resolver && $target->Resolver) {
+ return ( 0, $self->loc("Couldn't load link") );
+ }
+
+
+ my ( $id, $msg ) = $self->LoadByCols( Base => $base->URI,
+ Type => $args{'Type'},
+ Target => $target->URI );
+
+ unless ($id) {
+ return ( 0, $self->loc("Couldn't load link") );
+ }
+}
+
+# }}}
+# {{{ sub Load
+
+=head2 Load
+
+ Load an RT::Link object from the database. Takes one parameter, the id of an entry in the links table.
+
+
+=cut
+
+sub Load {
+ my $self = shift;
+ my $identifier = shift;
+
+
+
+
+ if ( $identifier !~ /^\d+$/ ) {
+ return ( 0, $self->loc("That's not a numerical id") );
+ }
+ else {
+ my ( $id, $msg ) = $self->LoadById($identifier);
+ unless ( $self->Id ) {
+ return ( 0, $self->loc("Couldn't load link") );
+ }
+ return ( $id, $msg );
+ }
+}
+
+# }}}
+
+
+# {{{ TargetURI
+
+=head2 TargetURI
+
+returns an RT::URI object for the "Target" of this link.
+
+=cut
+
+sub TargetURI {
+ my $self = shift;
+ my $URI = RT::URI->new($self->CurrentUser);
+ $URI->FromURI($self->Target);
+ return ($URI);
+}
+
+# }}}
+# {{{ sub TargetObj
+
+=head2 TargetObj
+
+=cut
+
+sub TargetObj {
+ my $self = shift;
+ return $self->TargetURI->Object;
+}
+# }}}
+
+# {{{ BaseURI
+
+=head2 BaseURI
+
+returns an RT::URI object for the "Base" of this link.
+
+=cut
+
+sub BaseURI {
+ my $self = shift;
+ my $URI = RT::URI->new($self->CurrentUser);
+ $URI->FromURI($self->Base);
+ return ($URI);
+}
+
+# }}}
+# {{{ sub BaseObj
+
+=head2 BaseObj
+
+=cut
+
+sub BaseObj {
+ my $self = shift;
+ return $self->BaseURI->Object;
+}
+# }}}
+
+
+
+# Static methods:
+
+# {{{ sub BaseIsLocal
+
+=head2 BaseIsLocal
+
+Returns true if the base of this link is a local ticket
+
+=cut
+
+sub BaseIsLocal {
+ my $self = shift;
+ $RT::Logger->crit("Link::BaseIsLocal is deprecated in favor of Link->BaseURI->IsLocal at (". join(":",caller).")");
+ return $self->BaseURI->IsLocal;
+}
+
+# }}}
+
+# {{{ sub TargetIsLocal
+
+=head2 TargetIsLocal
+
+Returns true if the target of this link is a local ticket
+
+=cut
+
+sub TargetIsLocal {
+ my $self = shift;
+ $RT::Logger->crit("Link::BaseIsLocal is deprecated in favor of Link->BaseURI->IsLocal at (". join(":",caller).")");
+ return $self->TargetURI->IsLocal;
+}
+
+# }}}
+
+
+# {{{ sub BaseAsHREF
+
+=head2 BaseAsHREF
+
+Returns an HTTP url to access the base of this link
+
+=cut
+
+sub BaseAsHREF {
+ my $self = shift;
+ $RT::Logger->crit("Link::BaseAsHREF deprecated in favor of ->BaseURI->AsHREF at (". join(":",caller).")");
+ return $self->BaseURI->AsHREF;
+}
+# }}}
+
+# {{{ sub TargetAsHREF
+
+=head2 TargetAsHREF
+
+return an HTTP url to access the target of this link
+
+=cut
+
+sub TargetAsHREF {
+ my $self = shift;
+ $RT::Logger->crit("Link::TargetAsHREF deprecated in favor of ->TargetURI->AsHREF at (". join(":",caller).")");
+ return $self->TargetURI->AsHREF;
+}
+# }}}
+
+# {{{ sub AsHREF - Converts Link URIs to HTTP URLs
+
+=head2 URI
+
+Takes a URI and returns an http: url to access that object.
+
+=cut
+
+
+sub AsHREF {
+ my $self=shift;
+
+ $RT::Logger->crit("AsHREF is gone. look at URI::HREF to figure out what to do with \$URI");
+}
+
+# }}}
+
+1;
+