+# display the form for duplicating
+elsif ( $op eq 'duplicate_form'){
+ $template->param(
+ DHTMLcalendar_dateformat => C4::Dates->DHTMLcalendar(),
+ 'duplicate_form' => '1',
+ 'budget_period_id' => $budget_period_id,
+ );
+}
+
+# handle the actual duplication
+elsif ( $op eq 'duplicate_budget' ){
+ die "please specify a budget period id\n" if( !defined $budget_period_id || $budget_period_id eq '' );
+ my $startdate = $input->param('budget_period_startdate');
+ my $enddate = $input->param('budget_period_enddate');
+
+ my $data = GetBudgetPeriod( $budget_period_id);
+
+ $data->{'budget_period_startdate'} = $startdate;
+ $data->{'budget_period_enddate'} = $enddate;
+ delete $data->{'budget_period_id'};
+ my $new_budget_period_id = C4::SQLHelper::InsertInTable('aqbudgetperiods', $data);
+
+ my $tree = GetBudgetHierarchy( $budget_period_id );
+
+ # hash mapping old ids to new
+ my %old_new;
+ # hash mapping old parent ids to list of new children ids
+ # only store a child here if the parents old id isnt in the old_new map
+ # when the parent is found, this map will be used, and then the entry removed and their id placed in old_new
+ my %parent_children;
+
+ for my $entry( @$tree ){
+ die "serious errors, parent period $budget_period_id doesnt match child ", $entry->{'budget_period_id'}, "\n" if( $entry->{'budget_period_id'} != $budget_period_id );
+ my $orphan = 0; # set to 1 if we need to make an entry in parent_children
+ my $old_id = delete $entry->{'budget_id'};
+ my $parent_id = delete $entry->{'budget_parent_id'};
+ $entry->{'budget_period_id'} = $new_budget_period_id;
+
+ if( !defined $parent_id ){
+ } elsif( defined $parent_id && $parent_id eq '' ){
+ } elsif( defined $old_new{$parent_id} ){
+ # set parent id now
+ $entry->{'budget_parent_id'} = $old_new{$parent_id};
+ } else {
+ # make an entry in parent_children
+ $parent_children{$parent_id} = [] unless defined $parent_children{$parent_id};
+ $orphan = 1;
+ }
+
+ # write it to db
+ my $new_id = C4::SQLHelper::InsertInTable('aqbudgets', $entry);
+ $old_new{$old_id} = $new_id;
+ push @{$parent_children{$parent_id}}, $new_id if $orphan;
+
+ # deal with any children
+ if( defined $parent_children{$old_id} ){
+ # tell my children my new id
+ for my $child ( @{$parent_children{$old_id}} ){
+ C4::SQLHelper::UpdateInTable('aqcudgets', [ 'budget_id' => $child, 'budget_parent_id' => $new_id ]);
+ }
+ delete $parent_children{$old_id};
+ }
+ }
+
+ # display the list of budgets
+ $op = 'else';
+}
+