1 package C4::SearchMarc;
3 # Copyright 2000-2002 Katipo Communications
5 # This file is part of Koha.
7 # Koha is free software; you can redistribute it and/or modify it under the
8 # terms of the GNU General Public License as published by the Free Software
9 # Foundation; either version 2 of the License, or (at your option) any later
12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14 # A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License along with
17 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
18 # Suite 330, Boston, MA 02111-1307 USA
25 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
27 # set the version for version checking
32 C4::Search - Functions for searching the Koha MARC catalog
38 my ($count, @results) = catalogsearch();
42 This module provides the searching facilities for the Koha MARC catalog
44 C<&catalogsearch> is a front end to all the other searches. Depending
45 on what is passed to it, it calls the appropriate search function.
54 @EXPORT = qw(&catalogsearch);
55 # make all your functions, whether exported or not;
57 # marcsearch : search in the MARC biblio table.
58 # everything is choosen by the user : what to search, the conditions...
61 my ($dbh, $tags, $subfields, $and_or, $excluding, $operator, $value, $offset,$length) = @_;
62 # build the sql request. She will look like :
64 # from marc_subfield_table as m1, marc_subfield_table as m2
65 # where m1.bibid=m2.bibid and
66 # (m1.subfieldvalue like "Des%" and m2.subfieldvalue like "27%")
68 my $sql_tables; # will contain marc_subfield_table as m1,...
69 my $sql_where1; # will contain the "true" where
70 my $sql_where2; # will contain m1.bibid=m2.bibid
71 my $nb_active=0; # will contain the number of "active" entries. and entry is active is a value is provided.
72 my $nb_table=1; # will contain the number of table. ++ on each entry EXCEPT when an OR is provided.
74 for(my $i=0; $i<=@$value;$i++) {
78 if (@$operator[$i] eq "start") {
79 $sql_tables .= "marc_subfield_table as m$nb_table,";
80 $sql_where1 .= "@$excluding[$i](m1.subfieldvalue like '@$value[$i]%'";
82 $sql_where1 .=" and m1.tag=@$tags[$i] and m1.subfieldcode='@$subfields[$i]'";
85 } elsif (@$operator[$i] eq "contains") {
86 $sql_tables .= "marc_word as m$nb_table,";
87 $sql_where1 .= "@$excluding[$i](m1.word like '@$value[$i]%'";
89 $sql_where1 .=" and m1.tag=@$tags[$i] and m1.subfieldid='@$subfields[$i]'";
93 $sql_tables .= "marc_subfield_table as m$nb_table,";
94 $sql_where1 .= "@$excluding[$i](m1.subfieldvalue @$operator[$i] '@$value[$i]' ";
96 $sql_where1 .=" and m1.tag=@$tags[$i] and m1.subfieldcode='@$subfields[$i]'";
101 if (@$operator[$i] eq "start") {
103 $sql_tables .= "marc_subfield_table as m$nb_table,";
104 $sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb_table.subfieldvalue like '@$value[$i]%'";
106 $sql_where1 .=" and m$nb_table.tag=@$tags[$i] and m$nb_table.subfieldcode='@$subfields[$i])";
109 $sql_where2 .= "m1.bibid=m$nb_table.bibid";
110 } elsif (@$operator[$i] eq "contains") {
111 if (@$and_or[$i] eq 'and') {
113 $sql_tables .= "marc_word as m$nb_table,";
114 $sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb_table.word like '@$value[$i]%'";
116 $sql_where1 .=" and m$nb_table.tag=@$tags[$i] and m$nb_table.subfieldid='@$subfields[$i]'";
119 $sql_where2 .= "m1.bibid=m$nb_table.bibid";
121 $sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb_table.word like '@$value[$i]%'";
123 $sql_where1 .=" and m$nb_table.tag=@$tags[$i] and m$nb_table.subfieldid='@$subfields[$i]'";
126 $sql_where2 .= "m1.bibid=m$nb_table.bibid";
130 $sql_tables .= "marc_subfield_table as m$nb_table,";
131 $sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb_table.subfieldvalue @$operator[$i] '@$value[$i]'";
133 $sql_where1 .=" and m$nb_table.tag=@$tags[$i] and m$nb_table.subfieldcode='@$subfields[$i]'";
135 $sql_where2 .= "m1.bibid=m$nb_table.bibid";
144 $sth = $dbh->prepare("select distinct m1.bibid from $sql_tables where $sql_where2 and ($sql_where1)");
146 $sth = $dbh->prepare("select distinct m1.bibid from $sql_tables where $sql_where1");
150 while (my ($bibid) = $sth->fetchrow) {
153 # we have bibid list. Now, loads title and author from [offset] to [offset]+[length]
154 my $counter = $offset;
155 $sth = $dbh->prepare("select author,title from biblio,marc_biblio where biblio.biblionumber=marc_biblio.biblionumber and bibid=?");
156 my @finalresult = ();
157 while ($counter <= ($offset + $length)) {
158 $sth->execute($result[$counter]);
159 my ($author,$title) = $sth->fetchrow;
161 $line{bibid}=$result[$counter];
162 $line{author}=$author;
164 push @finalresult, \%line;
170 END { } # module clean-up code here (global destructor)
179 Koha Developement team <info@koha.org>