1 files changed, 140 insertions, 0 deletions
diff --git a/rt/lib/RT/Shredder/Link.pm b/rt/lib/RT/Shredder/Link.pm
new file mode 100644
index 000000000..18cf4ed48
--- /dev/null
+++ b/rt/lib/RT/Shredder/Link.pm
@@ -0,0 +1,140 @@
+# BEGIN BPS TAGGED BLOCK {{{
+# 
+# COPYRIGHT:
+# 
+# This software is Copyright (c) 1996-2009 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+# (Except where explicitly superseded by other copyright notices)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/licenses/old-licenses/gpl-2.0.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 }}}
+
+use RT::Link ();
+package RT::Link;
+
+use strict;
+use warnings;
+use warnings FATAL => 'redefine';
+
+use RT::Shredder::Exceptions;
+use RT::Shredder::Dependencies;
+use RT::Shredder::Constants;
+
+use RT::Shredder::Transaction;
+use RT::Shredder::Record;
+
+sub __DependsOn
+{
+    my $self = shift;
+    my %args = (
+            Shredder => undef,
+            Dependencies => undef,
+            @_,
+           );
+    my $deps = $args{'Dependencies'};
+    my $list = [];
+
+# AddLink transactions
+    my $map = RT::Ticket->LINKTYPEMAP;
+    my $link_meta = $map->{ $self->Type };
+    unless ( $link_meta && $link_meta->{'Mode'} && $link_meta->{'Type'} ) {
+        RT::Shredder::Exception->throw( 'Wrong link link_meta, no record for '. $self->Type );
+    }
+    if ( $self->BaseURI->IsLocal ) {
+        my $objs = $self->BaseObj->Transactions;
+        $objs->Limit(
+            FIELD    => 'Type',
+            OPERATOR => '=',
+            VALUE    => 'AddLink',
+        );
+        $objs->Limit( FIELD => 'NewValue', VALUE => $self->Target );
+        while ( my ($k, $v) = each %$map ) {
+            next unless $v->{'Type'} eq $link_meta->{'Type'};
+            next unless $v->{'Mode'} eq $link_meta->{'Mode'};
+            $objs->Limit( FIELD => 'Field', VALUE => $k );
+        }
+        push( @$list, $objs );
+    }
+
+    my %reverse = ( Base => 'Target', Target => 'Base' );
+    if ( $self->TargetURI->IsLocal ) {
+        my $objs = $self->TargetObj->Transactions;
+        $objs->Limit(
+            FIELD    => 'Type',
+            OPERATOR => '=',
+            VALUE    => 'AddLink',
+        );
+        $objs->Limit( FIELD => 'NewValue', VALUE => $self->Base );
+        while ( my ($k, $v) = each %$map ) {
+            next unless $v->{'Type'} eq $link_meta->{'Type'};
+            next unless $v->{'Mode'} eq $reverse{ $link_meta->{'Mode'} };
+            $objs->Limit( FIELD => 'Field', VALUE => $k );
+        }
+        push( @$list, $objs );
+    }
+
+    $deps->_PushDependencies(
+            BaseObject => $self,
+            Flags => DEPENDS_ON|WIPE_AFTER,
+            TargetObjects => $list,
+            Shredder => $args{'Shredder'}
+        );
+    return $self->SUPER::__DependsOn( %args );
+}
+
+#TODO: Link record has small strength, but should be encountered
+# if we plan write export tool.
+
+sub __Relates
+{
+    my $self = shift;
+    my %args = (
+            Shredder => undef,
+            Dependencies => undef,
+            @_,
+           );
+    my $deps = $args{'Dependencies'};
+    my $list = [];
+# FIXME: if link is local then object should exist
+
+    return $self->SUPER::__Relates( %args );
+}
+
+1;