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
26 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
28 # set the version for version checking
33 C4::Search - Functions for searching the Koha MARC catalog
39 my ($count, @results) = catalogsearch();
43 This module provides the searching facilities for the Koha MARC catalog
45 C<&catalogsearch> is a front end to all the other searches. Depending
46 on what is passed to it, it calls the appropriate search function.
55 @EXPORT = qw(&catalogsearch &findseealso &findsuggestion);
57 # make all your functions, whether exported or not;
60 my ($dbh,$values) = @_;
61 my $sth = $dbh->prepare("SELECT count( * ) AS total, word FROM marc_word WHERE sndx_word = soundex( ? ) AND word <> ? GROUP BY word ORDER BY total DESC");
63 for(my $i = 0 ; $i <= $#{$values} ; $i++) {
64 if (length(@$values[$i]) >=5) {
65 $sth->execute(@$values[$i],@$values[$i]);
68 while ((my ($count,$word) = $sth->fetchrow) and $resfound <=10) {
69 push @results, "@$values[$i]|$word|$count";
70 # $results{@$values[$i]} = \@resline;
78 my ($dbh, $fields) = @_;
79 my $tagslib = MARCgettagslib ($dbh,1);
80 for (my $i=0;$i<=$#{$fields};$i++) {
81 my ($tag) =substr(@$fields[$i],1,3);
82 my ($subfield) =substr(@$fields[$i],4,1);
83 @$fields[$i].=','.$tagslib->{$tag}->{$subfield}->{seealso} if ($tagslib->{$tag}->{$subfield}->{seealso});
87 # marcsearch : search in the MARC biblio table.
88 # everything is choosen by the user : what to search, the conditions...
91 my ($dbh, $tags, $and_or, $excluding, $operator, $value, $offset,$length,$orderby) = @_;
92 # build the sql request. She will look like :
94 # from marc_subfield_table as m1, marc_subfield_table as m2
95 # where m1.bibid=m2.bibid and
96 # (m1.subfieldvalue like "Des%" and m2.subfieldvalue like "27%")
98 # last minute stripping out of stuff
99 # doesn't work @$value =~ s/\'/ /;
100 # @$value = map { $_ =~ s/\'/ /g } @$value;
102 # "Normal" statements
103 my @normal_tags = ();
104 my @normal_and_or = ();
105 my @normal_operator = ();
106 my @normal_value = ();
107 # Extracts the NOT statements from the list of statements
110 my @not_operator = ();
113 $orderby = "biblio.title" unless $orderby;
115 #last minute stripping out of ' and ,
116 foreach $_ (@$value) {
121 for(my $i = 0 ; $i <= $#{$value} ; $i++)
124 @$value[$i] =~ s/\*/%/g;
125 # remove % at the beginning
126 @$value[$i] =~ s/^%//g;
127 if(@$excluding[$i]) # NOT statements
130 if(@$operator[$i] eq "contains")
132 foreach my $word (split(/ /, @$value[$i])) # if operator is contains, splits the words in separate requests
134 # remove the "%" for small word (3 letters. (note : the >4 is due to the % at the end)
136 $word =~ s/%//g unless length($word)>4;
137 unless (C4::Context->stopwords->{uc($word)}) { #it's NOT a stopword => use it. Otherwise, ignore
138 push @not_tags, @$tags[$i];
139 push @not_and_or, "or"; # as request is negated, finds "foo" or "bar" if final request is NOT "foo" and "bar"
140 push @not_operator, @$operator[$i];
141 push @not_value, $word;
147 push @not_tags, @$tags[$i];
148 push @not_and_or, "or"; # as request is negated, finds "foo" or "bar" if final request is NOT "foo" and "bar"
149 push @not_operator, @$operator[$i];
150 push @not_value, @$value[$i];
153 else # NORMAL statements
155 if(@$operator[$i] eq "contains") # if operator is contains, splits the words in separate requests
157 foreach my $word (split(/ /, @$value[$i]))
159 # remove the "%" for small word (3 letters. (note : the >4 is due to the % at the end)
161 $word =~ s/%//g unless length($word)>4;
162 unless (C4::Context->stopwords->{uc($word)}) { #it's NOT a stopword => use it. Otherwise, ignore
163 my $tag = substr(@$tags[$i],0,3);
164 my $subf = substr(@$tags[$i],3,1);
165 push @normal_tags, @$tags[$i];
166 push @normal_and_or, "and"; # assumes "foo" and "bar" if "foo bar" is entered
167 push @normal_operator, @$operator[$i];
168 push @normal_value, $word;
174 push @normal_tags, @$tags[$i];
175 push @normal_and_or, @$and_or[$i];
176 push @normal_operator, @$operator[$i];
177 push @normal_value, @$value[$i];
182 # Finds the basic results without the NOT requests
183 my ($sql_tables, $sql_where1, $sql_where2) = create_request($dbh,\@normal_tags, \@normal_and_or, \@normal_operator, \@normal_value);
187 $sth = $dbh->prepare("select distinct m1.bibid from biblio,biblioitems,marc_biblio,$sql_tables where biblio.biblionumber=marc_biblio.biblionumber and biblio.biblionumber=biblioitems.biblionumber and m1.bibid=marc_biblio.bibid and $sql_where2 and ($sql_where1) order by $orderby");
188 warn "Q2 : select distinct m1.bibid from biblio,biblioitems,marc_biblio,$sql_tables where biblio.biblionumber=marc_biblio.biblionumber and biblio.biblionumber=biblioitems.biblionumber and m1.bibid=marc_biblio.bibid and $sql_where2 and ($sql_where1) order by $orderby term is @$value";
190 $sth = $dbh->prepare("select distinct m1.bibid from biblio,biblioitems,marc_biblio,$sql_tables where biblio.biblionumber=marc_biblio.biblionumber and biblio.biblionumber=biblioitems.biblionumber and m1.bibid=marc_biblio.bibid and $sql_where1 order by $orderby");
191 warn "Q : select distinct m1.bibid from biblio,biblioitems,marc_biblio,$sql_tables where biblio.biblionumber=marc_biblio.biblionumber and biblio.biblionumber=biblioitems.biblionumber and m1.bibid=marc_biblio.bibid and $sql_where1 order by $orderby";
196 # Processes the NOT if any and there are results
197 my ($not_sql_tables, $not_sql_where1, $not_sql_where2);
199 if( ($sth->rows) && $any_not ) # some results to tune up and some NOT statements
201 ($not_sql_tables, $not_sql_where1, $not_sql_where2) = create_request($dbh,\@not_tags, \@not_and_or, \@not_operator, \@not_value);
205 while (my ($bibid) = $sth->fetchrow) {
206 push @tmpresult,$bibid;
209 warn "NOT : select distinct m1.bibid from $not_sql_tables where $not_sql_where2 and ($not_sql_where1)";
210 if ($not_sql_where2) {
211 $sth_not = $dbh->prepare("select distinct m1.bibid from $not_sql_tables where $not_sql_where2 and ($not_sql_where1)");
213 $sth_not = $dbh->prepare("select distinct m1.bibid from $not_sql_tables where $not_sql_where1");
220 while(my $bibid = $sth_not->fetchrow()) {
221 $not_bibids{$bibid} = 1; # populates the hashtable with the bibids matching the NOT statement
224 foreach my $bibid (@tmpresult)
226 if(!$not_bibids{$bibid})
228 push @result, $bibid;
234 else # no NOT statements
236 while (my ($bibid) = $sth->fetchrow) {
241 # we have bibid list. Now, loads title and author from [offset] to [offset]+[length]
242 my $counter = $offset;
243 $sth = $dbh->prepare("SELECT biblio.*, biblioitems.*, items.*,marc_biblio.bibid
244 FROM biblio, marc_biblio
245 LEFT JOIN items on items.biblionumber = biblio.biblionumber
246 LEFT JOIN biblioitems on biblio.biblionumber = biblioitems.biblionumber
247 WHERE biblio.biblionumber = marc_biblio.biblionumber AND bibid = ?
248 GROUP BY items.biblionumber, items.holdingbranch, items.itemcallnumber");
249 my @finalresult = ();
251 my $oldbiblionumber=0;
254 # my ($biblionumber,$author,$title,$holdingbranch, $itemcallnumber, $bibid);
255 my ($oldbibid, $oldauthor, $oldtitle,$oldbiblionumber);
256 while (($counter <= $#result) && ($counter <= ($offset + $length))) {
257 $sth->execute($result[$counter]);
258 while (my $line = $sth->fetchrow_hashref) {
259 # parse the result, putting holdingbranch & itemcallnumber in separate array
260 # then all other fields in the main array
261 if ($oldbiblionumber && ($oldbiblionumber ne $line->{biblionumber})) {
263 %newline = %$oldline;
264 $newline{totitem} = $totalitems;
265 $newline{biblionumber} = $oldbiblionumber;
266 my @CNresults2= @CNresults;
267 $newline{CN} = \@CNresults2;
268 $newline{'even'} = 1 if $#finalresult % 2 == 0;
269 $newline{'odd'} = 1 if $#finalresult % 2 == 1;
271 push @finalresult, \%newline;
274 $oldbiblionumber = $line->{biblionumber};
275 $totalitems++ if ($line->{holdingbranch});
277 # item callnumber & branch
279 $lineCN{holdingbranch} = $line->{holdingbranch};
280 $lineCN{itemcallnumber} = $line->{itemcallnumber};
281 push @CNresults,\%lineCN;
285 # add the last line, that is not reached byt the loop / if ($oldbiblionumber...)
288 %newline = %$oldline;
289 $newline{totitem} = $totalitems;
290 $newline{biblionumber} = $oldbiblionumber;
291 my @CNresults2= @CNresults;
292 $newline{CN} = \@CNresults2;
293 $newline{'even'} = 1 if $counter % 2 == 0;
294 $newline{'odd'} = 1 if $counter % 2 == 1;
296 my @CNresults2= @CNresults;
297 $newline{CN} = \@CNresults2;
299 push @finalresult, \%newline;
301 my $nbresults = $#result + 1;
302 return (\@finalresult, $nbresults);
305 # Creates the SQL Request
308 my ($dbh,$tags, $and_or, $operator, $value) = @_;
310 my $sql_tables; # will contain marc_subfield_table as m1,...
311 my $sql_where1; # will contain the "true" where
312 my $sql_where2 = "("; # will contain m1.bibid=m2.bibid
313 my $nb_active=0; # will contain the number of "active" entries. an entry is active if a value is provided.
314 my $nb_table=1; # will contain the number of table. ++ on each entry EXCEPT when an OR is provided.
316 for(my $i=0; $i<=@$value;$i++) {
320 if (@$operator[$i] eq "start") {
321 $sql_tables .= "marc_subfield_table as m$nb_table,";
322 $sql_where1 .= "(m1.subfieldvalue like ".$dbh->quote("@$value[$i]");
324 $sql_where1 .=" and m1.tag+m1.subfieldcode in (@$tags[$i])";
327 } elsif (@$operator[$i] eq "contains") {
328 $sql_tables .= "marc_word as m$nb_table,";
329 $sql_where1 .= "(m1.word like ".$dbh->quote("@$value[$i]");
331 $sql_where1 .=" and m1.tagsubfield in (@$tags[$i])";
335 $sql_tables .= "marc_subfield_table as m$nb_table,";
336 $sql_where1 .= "(m1.subfieldvalue @$operator[$i] ".$dbh->quote("@$value[$i]");
338 $sql_where1 .=" and m1.tag+m1.subfieldcode in (@$tags[$i])";
343 if (@$operator[$i] eq "start") {
345 $sql_tables .= "marc_subfield_table as m$nb_table,";
346 $sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue like ".$dbh->quote("@$value[$i]");
348 $sql_where1 .=" and m$nb_table.tag+m$nb_table.subfieldcode in (@$tags[$i])";
351 $sql_where2 .= "m1.bibid=m$nb_table.bibid and ";
352 } elsif (@$operator[$i] eq "contains") {
353 if (@$and_or[$i] eq 'and') {
355 $sql_tables .= "marc_word as m$nb_table,";
356 $sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]");
358 $sql_where1 .=" and m$nb_table.tagsubfield in(@$tags[$i])";
361 $sql_where2 .= "m1.bibid=m$nb_table.bibid and ";
363 $sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]");
365 $sql_where1 .=" and m$nb_table.tagsubfield in (@$tags[$i])";
368 $sql_where2 .= "m1.bibid=m$nb_table.bibid and ";
372 $sql_tables .= "marc_subfield_table as m$nb_table,";
373 $sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue @$operator[$i] ".$dbh->quote(@$value[$i]);
375 $sql_where1 .=" and m$nb_table.tag+m$nb_table.subfieldcode in (@$tags[$i])";
377 $sql_where2 .= "m1.bibid=m$nb_table.bibid and ";
384 if($sql_where2 ne "(") # some datas added to sql_where2, processing
386 $sql_where2 = substr($sql_where2, 0, (length($sql_where2)-5)); # deletes the trailing ' and '
389 else # no sql_where2 statement, deleting '('
393 chop $sql_tables; # deletes the trailing ','
394 return ($sql_tables, $sql_where1, $sql_where2);
398 END { } # module clean-up code here (global destructor)
407 Koha Developement team <info@koha.org>