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#!/usr/bin/env perl


# Copyright 2000-2002 Katipo Communications
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha 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
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA

use strict;
use CGI;
use C4::Auth;
use C4::Koha;
use Koha;
use C4::Context;
use C4::Output;
use Koha;
use C4::Context;


# retrieve parameters
our $input = CGI->new();
our $frameworkcode = $input->param('frameworkcode') || ''; # set to select framework
our $existingframeworkcode = $input->param('existingframeworkcode') || '';
our $searchfield = $input->param('searchfield') || 0;
# set when we have to create a new framework (in frameworkcode) by copying an old one (in existingframeworkcode)
our $frameworkinfo = getframeworkinfo($frameworkcode);
$searchfield=~ s/\,//g;

our $offset = $input->param('offset') || 0;
our $op = $input->param('op') || '';
our $dspchoice = $input->param('select_display');
our $pagesize = 20;

our $script_name = "/cgi-bin/koha/admin/marctagstructure.pl";

our $dbh = C4::Context->dbh;

# open template
our ($template, $loggedinuser, $cookie)
    = get_template_and_user({template_name => "admin/marctagstructure.tmpl",
query => $input,
type => "intranet",
authnotrequired => 0,
flagsrequired => {parameters => 1},
debug => 1,
});

# get framework list
our $frameworks = getframeworks();
our @frameworkloop;
foreach my $thisframeworkcode (keys %$frameworks) {
push @frameworkloop, {
        value => $thisframeworkcode,
        selected => ($thisframeworkcode eq $frameworkcode) ? 1 : 0,
        frameworktext => $frameworks->{$thisframeworkcode}->{'frameworktext'},
    };
}

# check that framework is defined in marc_tag_structure
our $sth=$dbh->prepare("select count(*) from marc_tag_structure where frameworkcode=?");
$sth->execute($frameworkcode);
our ($frameworkexist) = $sth->fetchrow;
unless ($frameworkexist) {
# if frameworkcode does not exists, then OP must be changed to "create framework" if we are not on the way to create it
# (op = itemtyp_create_confirm)
if ($op eq "framework_create_confirm") {
duplicate_framework($frameworkcode, $existingframeworkcode);
$op = ""; # unset $op to go back to framework list
} else {
$op = "framework_create";
}
}
$template->param(
    frameworkloop => \@frameworkloop,
    frameworkcode => $frameworkcode,
    frameworktext => $frameworkinfo->{frameworktext},
    script_name => $script_name,
    ($op||'else') => 1,
);


################## ADD_FORM ##################################
# called by default. Used to create form to add or modify a record
if ($op eq 'add_form') {
#---- if primkey exists, it's a modify action, so read values to modify...
my $data;
if ($searchfield) {
$sth=$dbh->prepare("select tagfield,liblibrarian,libopac,repeatable,mandatory,authorised_value from marc_tag_structure where tagfield=? and frameworkcode=?");
$sth->execute($searchfield,$frameworkcode);
$data=$sth->fetchrow_hashref;
}
my $sth = $dbh->prepare("select distinct category from authorised_values");
$sth->execute;
my @authorised_values;
push @authorised_values,"";
while ((my $category) = $sth->fetchrow_array) {
push @authorised_values, $category;
}
my $authorised_value = CGI::scrolling_list(-name=>'authorised_value',
-values=> \@authorised_values,
-size=>1,
-id=>"authorised_value",
-multiple=>0,
-default => $data->{'authorised_value'},
);

if ($searchfield) {
        $template->param(searchfield => $searchfield);
$template->param(action => "Modify tag");
$template->param('heading-modify-tag-p' => 1);
} else {
$template->param(action => "Add tag");
$template->param('heading-add-tag-p' => 1);
}
$template->param('use-heading-flags-p' => 1);
$template->param(liblibrarian => $data->{'liblibrarian'},
libopac => $data->{'libopac'},
repeatable => CGI::checkbox(-name=>'repeatable',
-checked=> $data->{'repeatable'}?'checked':'',
-value=> 1,
-label => '',
-id=> 'repeatable'),
mandatory => CGI::checkbox(-name => 'mandatory',
-checked => $data->{'mandatory'}?'checked':'',
-value => 1,
-label => '',
-id => 'mandatory'),
authorised_value => $authorised_value,
frameworkcode => $frameworkcode,
    ); # FIXME: move checkboxes to presentation layer
# END $OP eq ADD_FORM
################## ADD_VALIDATE ##################################
# called by add_form, used to insert/modify data in DB
} elsif ($op eq 'add_validate') {
my $tagfield = $input->param('tagfield');
my $liblibrarian = $input->param('liblibrarian');
my $libopac = $input->param('libopac');
my $repeatable = $input->param('repeatable') ? 1 : 0;
my $mandatory = $input->param('mandatory') ? 1 : 0;
my $authorised_value = $input->param('authorised_value');
    unless (C4::Context->config('demo') eq 1) {
        if ($input->param('modif')) {
            $sth = $dbh->prepare(
            "UPDATE marc_tag_structure SET liblibrarian=? ,libopac=? ,repeatable=? ,mandatory=? ,authorised_value=? WHERE frameworkcode=? AND tagfield=?"
            );
            $sth->execute( $liblibrarian,
                            $libopac,
                            $repeatable,
                            $mandatory,
                            $authorised_value,
                            $frameworkcode,
                            $tagfield
            );
        } else {
            $sth = $dbh->prepare(
            "INSERT INTO marc_tag_structure (tagfield,liblibrarian,libopac,repeatable,mandatory,authorised_value,frameworkcode) values (?,?,?,?,?,?,?)"
            );
            $sth->execute($tagfield,
                          $liblibrarian,
                          $libopac,
                          $repeatable,
                          $mandatory,
                          $authorised_value,
                          $frameworkcode
            );
        }
}
   print $input->redirect("marctagstructure.pl?searchfield=$tagfield&frameworkcode=$frameworkcode");
exit;
# END $OP eq ADD_VALIDATE
################## DELETE_CONFIRM ##################################
# called by default form, used to confirm deletion of data in DB
} elsif ($op eq 'delete_confirm') {
$sth=$dbh->prepare("select tagfield,liblibrarian,libopac,repeatable,mandatory,authorised_value from marc_tag_structure where tagfield=? and frameworkcode=?");
    $sth->execute($searchfield, $frameworkcode);
    my $data = $sth->fetchrow_hashref;
$template->param(
         liblibrarian => $data->{'liblibrarian'},
          searchfield => $searchfield,
        frameworkcode => $frameworkcode,
    );
# END $OP eq DELETE_CONFIRM
################## DELETE_CONFIRMED ##################################
# called by delete_confirm, used to effectively confirm deletion of data in DB
} elsif ($op eq 'delete_confirmed') {
unless (C4::Context->config('demo') eq 1) {
        my $sth1 = $dbh->prepare("DELETE FROM marc_tag_structure WHERE tagfield=? AND frameworkcode=?");
        my $sth2 = $dbh->prepare("DELETE FROM marc_subfield_structure WHERE tagfield=? AND frameworkcode=?");
        $sth1->execute($searchfield, $frameworkcode);
        $sth2->execute($searchfield, $frameworkcode);
}
$template->param(
          searchfield => $searchfield,
        frameworkcode => $frameworkcode,
    );
# END $OP eq DELETE_CONFIRMED
################## ITEMTYPE_CREATE ##################################
# called automatically if an unexisting frameworkis selected
} elsif ($op eq 'framework_create') {
$sth = $dbh->prepare("select count(*),marc_tag_structure.frameworkcode,frameworktext from marc_tag_structure,biblio_framework where biblio_framework.frameworkcode=marc_tag_structure.frameworkcode group by marc_tag_structure.frameworkcode");
$sth->execute;
my @existingframeworkloop;
while (my ($tot,$thisframeworkcode,$frameworktext) = $sth->fetchrow) {
if ($tot>0) {
push @existingframeworkloop, {
                value => $thisframeworkcode,
                frameworktext => $frameworktext,
            };
}
}
$template->param(existingframeworkloop => \@existingframeworkloop,
frameworkcode => $frameworkcode,
# FRtext => $frameworkinfo->{frameworktext},
);
################## DEFAULT ##################################
} else { # DEFAULT
# here, $op can be unset or set to "framework_create_confirm".
    if ($searchfield ne '') {
        $template->param(searchfield => $searchfield);
    }
my $cnt=0;
if ($dspchoice) {
#here, user only wants used tags/subfields displayed
$searchfield=~ s/\'/\\\'/g;
my @data=split(' ',$searchfield);
my $sth=$dbh->prepare("
SELECT marc_tag_structure.tagfield AS mts_tagfield,
marc_tag_structure.liblibrarian as mts_liblibrarian,
marc_tag_structure.libopac as mts_libopac,
marc_tag_structure.repeatable as mts_repeatable,
marc_tag_structure.mandatory as mts_mandatory,
marc_tag_structure.authorised_value as mts_authorized_value,
marc_subfield_structure.*
FROM marc_tag_structure
LEFT JOIN marc_subfield_structure ON (marc_tag_structure.tagfield=marc_subfield_structure.tagfield AND marc_tag_structure.frameworkcode=marc_subfield_structure.frameworkcode) WHERE (marc_tag_structure.tagfield >= ? and marc_tag_structure.frameworkcode=?) AND marc_subfield_structure.tab>=0 ORDER BY marc_tag_structure.tagfield,marc_subfield_structure.tagsubfield");
#could be ordoned by tab
$sth->execute($data[0], $frameworkcode);
my @results = ();
while (my $data=$sth->fetchrow_hashref){
push(@results,$data);
$cnt++;
}

my @loop_data = ();
my $j=1;
my $i=$offset;
while ($i < ($offset+$pagesize<$cnt?$offset+$pagesize:$cnt)) {
my %row_data; # get a fresh hash for the row data
$row_data{tagfield} = $results[$i]->{'mts_tagfield'};
$row_data{liblibrarian} = $results[$i]->{'mts_liblibrarian'};
$row_data{repeatable} = $results[$i]->{'mts_repeatable'};
$row_data{mandatory} = $results[$i]->{'mts_mandatory'};
$row_data{authorised_value} = $results[$i]->{'mts_authorised_value'};
$row_data{subfield_link} = "marc_subfields_structure.pl?op=add_form&amp;tagfield=".$results[$i]->{'mts_tagfield'}."&amp;frameworkcode=".$frameworkcode;
$row_data{edit} = "$script_name?op=add_form&amp;searchfield=" .$results[$i]->{'mts_tagfield'}."&amp;frameworkcode=".$frameworkcode;
$row_data{delete} = "$script_name?op=delete_confirm&amp;searchfield=" .$results[$i]->{'mts_tagfield'}."&amp;frameworkcode=".$frameworkcode;
$j=$i;
my @internal_loop = ();
while (($results[$i]->{'tagfield'}==$results[$j]->{'tagfield'}) and ($j< ($offset+$pagesize<$cnt?$offset+$pagesize:$cnt))) {
my %subfield_data;
$subfield_data{tagsubfield} = $results[$j]->{'tagsubfield'};
$subfield_data{liblibrarian} = $results[$j]->{'liblibrarian'};
$subfield_data{kohafield} = $results[$j]->{'kohafield'};
$subfield_data{repeatable} = $results[$j]->{'repeatable'};
$subfield_data{mandatory} = $results[$j]->{'mandatory'};
$subfield_data{tab} = $results[$j]->{'tab'};
$subfield_data{seealso} = $results[$j]->{'seealso'};
$subfield_data{authorised_value} = $results[$j]->{'authorised_value'};
$subfield_data{authtypecode} = $results[$j]->{'authtypecode'};
$subfield_data{value_builder} = $results[$j]->{'value_builder'};
# warn "tagfield : ".$results[$j]->{'tagfield'}." tagsubfield :".$results[$j]->{'tagsubfield'};
push @internal_loop,\%subfield_data;
$j++;
}
$row_data{'subfields'}=\@internal_loop;
push(@loop_data, \%row_data);
$i=$j;
}
$template->param(select_display => "True",
loop => \@loop_data);
} else {
#here, normal old style : display every tags
my ($count,$results)=StringSearch($searchfield,$frameworkcode);
$cnt = $count;
my @loop_data = ();
for (my $i=$offset; $i < ($offset+$pagesize<$count?$offset+$pagesize:$count); $i++){
my %row_data; # get a fresh hash for the row data
$row_data{tagfield} = $results->[$i]{'tagfield'};
$row_data{liblibrarian} = $results->[$i]{'liblibrarian'};
$row_data{repeatable} = $results->[$i]{'repeatable'};
$row_data{mandatory} = $results->[$i]{'mandatory'};
$row_data{authorised_value} = $results->[$i]{'authorised_value'};
$row_data{subfield_link} = "marc_subfields_structure.pl?tagfield=" .$results->[$i]{'tagfield'}."&amp;frameworkcode=".$frameworkcode;
$row_data{edit} = "$script_name?op=add_form&amp;searchfield=" .$results->[$i]{'tagfield'}."&amp;frameworkcode=".$frameworkcode;
$row_data{delete} = "$script_name?op=delete_confirm&amp;searchfield=".$results->[$i]{'tagfield'}."&amp;frameworkcode=".$frameworkcode;
push(@loop_data, \%row_data);
}
$template->param(loop => \@loop_data);
}
if ($offset>0) {
$template->param(isprevpage => $offset,
prevpage=> $offset-$pagesize,
searchfield => $searchfield,
script_name => $script_name,
frameworkcode => $frameworkcode,
);
}
if ($offset+$pagesize<$cnt) {
$template->param(nextpage =>$offset+$pagesize,
searchfield => $searchfield,
script_name => $script_name,
frameworkcode => $frameworkcode,
);
}
} #---- END $OP eq DEFAULT

output_html_with_http_headers $input, $cookie, $template->output;
exit;

#
# the sub used for searches
#
sub StringSearch {
my ($searchstring,$frameworkcode)=@_;
my $sth = C4::Context->dbh->prepare("
SELECT tagfield,liblibrarian,libopac,repeatable,mandatory,authorised_value
FROM marc_tag_structure
WHERE (tagfield >= ? and frameworkcode=?)
ORDER BY tagfield
");
$sth->execute($searchstring, $frameworkcode);
my $results = $sth->fetchall_arrayref({});
return (scalar(@$results), $results);
}

#
# the sub used to duplicate a framework from an existing one in MARC parameters tables.
#
sub duplicate_framework {
my ($newframeworkcode,$oldframeworkcode) = @_;
my $sth = $dbh->prepare("select tagfield,liblibrarian,libopac,repeatable,mandatory,authorised_value from marc_tag_structure where frameworkcode=?");
$sth->execute($oldframeworkcode);
my $sth_insert = $dbh->prepare("insert into marc_tag_structure (tagfield, liblibrarian, libopac, repeatable, mandatory, authorised_value, frameworkcode) values (?,?,?,?,?,?,?)");
while ( my ($tagfield,$liblibrarian,$libopac,$repeatable,$mandatory,$authorised_value) = $sth->fetchrow) {
$sth_insert->execute($tagfield,$liblibrarian,$libopac,$repeatable,$mandatory,$authorised_value,$newframeworkcode);
}

$sth = $dbh->prepare("select frameworkcode,tagfield,tagsubfield,liblibrarian,libopac,repeatable,mandatory,kohafield,tab,authorised_value,authtypecode,value_builder,seealso,hidden from marc_subfield_structure where frameworkcode=?");
$sth->execute($oldframeworkcode);
$sth_insert = $dbh->prepare("insert into marc_subfield_structure (frameworkcode,tagfield,tagsubfield,liblibrarian,libopac,repeatable,mandatory,kohafield,tab,authorised_value,authtypecode,value_builder,seealso,hidden) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
while ( my ($frameworkcode, $tagfield, $tagsubfield, $liblibrarian, $libopac, $repeatable, $mandatory, $kohafield, $tab, $authorised_value, $thesaurus_category, $value_builder, $seealso,$hidden) = $sth->fetchrow) {
$sth_insert->execute($newframeworkcode, $tagfield, $tagsubfield, $liblibrarian, $libopac, $repeatable, $mandatory, $kohafield, $tab, $authorised_value, $thesaurus_category, $value_builder, $seealso, $hidden);
}
}
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