adding seealso feature in MARC searches
[srvgit] / search.marc / search.pl
1 #!/usr/bin/perl
2 # WARNING: 4-character tab stops here
3
4 # Copyright 2000-2002 Katipo Communications
5 #
6 # This file is part of Koha.
7 #
8 # Koha is free software; you can redistribute it and/or modify it under the
9 # terms of the GNU General Public License as published by the Free Software
10 # Foundation; either version 2 of the License, or (at your option) any later
11 # version.
12 #
13 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
14 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
15 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
16 #
17 # You should have received a copy of the GNU General Public License along with
18 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
19 # Suite 330, Boston, MA  02111-1307 USA
20
21 use strict;
22 require Exporter;
23 use CGI;
24 use C4::Auth;
25 use HTML::Template;
26 use C4::Context;
27 use C4::Search;
28 use C4::Auth;
29 use C4::Output;
30 use C4::Interface::CGI::Output;
31 use C4::Biblio;
32 use C4::SearchMarc;
33 use C4::Koha; # XXX subfield_is_koha_internal_p
34
35 # Creates the list of active tags using the active MARC configuration
36 sub create_marclist {
37         my $dbh = C4::Context->dbh;
38         my $tagslib = &MARCgettagslib($dbh,1);
39         my @marcarray;
40         push @marcarray,"";
41         my $widest_menu_item_width = 0;
42         for (my $pass = 1; $pass <= 2; $pass += 1)
43         {
44                 for (my $tabloop = 0; $tabloop<=9;$tabloop++)
45                 {
46                         my $separator_inserted_p = 0; # FIXME... should not use!!
47                         foreach my $tag (sort(keys (%{$tagslib})))
48                         {
49                                 foreach my $subfield (sort(keys %{$tagslib->{$tag}}))
50                                 {
51                                         next if subfield_is_koha_internal_p($subfield);
52                                         next unless ($tagslib->{$tag}->{$subfield}->{tab} eq $tabloop);
53                                         my $menu_item = "$tag$subfield - $tagslib->{$tag}->{$subfield}->{lib}";
54                                         if ($pass == 1)
55                                         {
56                                                 $widest_menu_item_width = length $menu_item if($widest_menu_item_width < length $menu_item);
57                                         } else {
58                                                 if (!$separator_inserted_p)
59                                                 {
60                                                         my $w = int(($widest_menu_item_width - 3 + 0.5)/2);
61                                                         my $s = ('-' x ($w * 4/5));
62                                                         push @marcarray,  "$s $tabloop $s";
63                                                         $separator_inserted_p = 1;
64                                                 }
65                                         push @marcarray, $menu_item;
66                                         }
67                                 }
68                         }
69                 }
70         }
71         return \@marcarray;
72 }
73
74 # Creates a scrolling list with the associated default value.
75 # Using more than one scrolling list in a CGI assigns the same default value to all the
76 # scrolling lists on the page !?!? That's why this function was written.
77 sub create_scrolling_list {
78         my ($params) = @_;
79         my $scrollist = sprintf("<select name=\"%s\" size=\"%d\" onChange='%s'>\n", $params->{'name'}, $params->{'size'}, $params->{'onChange'});
80
81         foreach my $tag (@{$params->{'values'}})
82         {
83                 my $selected = "selected " if($params->{'default'} eq $tag);
84                 $scrollist .= sprintf("<option %svalue=\"%s\">%s</option>\n", $selected, $tag, $tag);
85         }
86
87         $scrollist .= "</select>\n";
88
89         return $scrollist;
90 }
91
92 my $query=new CGI;
93 my $type=$query->param('type');
94 my $op = $query->param('op');
95 my $dbh = C4::Context->dbh;
96
97 my $startfrom=$query->param('startfrom');
98 $startfrom=0 if(!defined $startfrom);
99 my ($template, $loggedinuser, $cookie);
100 my $resultsperpage;
101
102 if ($op eq "do_search") {
103         my @marclist = $query->param('marclist');
104         my @and_or = $query->param('and_or');
105         my @excluding = $query->param('excluding');
106         my @operator = $query->param('operator');
107         my @value = $query->param('value');
108
109         $resultsperpage= $query->param('resultsperpage');
110         $resultsperpage = 19 if(!defined $resultsperpage);
111
112         # builds tag and subfield arrays
113         my @tags;
114
115         foreach my $marc (@marclist) {
116                 push @tags, $dbh->quote(substr($marc,0,4));
117         }
118         findseealso($dbh,\@tags);
119         my ($results,$total) = catalogsearch($dbh, \@tags,\@and_or,
120                                                                                 \@excluding, \@operator, \@value,
121                                                                                 $startfrom*$resultsperpage, $resultsperpage);
122
123         ($template, $loggedinuser, $cookie)
124                 = get_template_and_user({template_name => "search.marc/result.tmpl",
125                                 query => $query,
126                                 type => $type,
127                                 authnotrequired => 0,
128                                 flagsrequired => {borrowers => 1},
129                                 flagsrequired => {catalogue => 1},
130                                 debug => 1,
131                                 });
132
133         # multi page display gestion
134         my $displaynext=0;
135         my $displayprev=$startfrom;
136         if(($total - (($startfrom+1)*($resultsperpage))) > 0 ){
137                 $displaynext = 1;
138         }
139
140         my @field_data = ();
141
142
143         for(my $i = 0 ; $i <= $#marclist ; $i++)
144         {
145                 push @field_data, { term => "marclist", val=>$marclist[$i] };
146                 push @field_data, { term => "and_or", val=>$and_or[$i] };
147                 push @field_data, { term => "excluding", val=>$excluding[$i] };
148                 push @field_data, { term => "operator", val=>$operator[$i] };
149                 push @field_data, { term => "value", val=>$value[$i] };
150         }
151
152         my @numbers = ();
153
154         if ($total>$resultsperpage)
155         {
156                 for (my $i=1; $i<$total/$resultsperpage+1; $i++)
157                 {
158                         if ($i<16)
159                         {
160                         my $highlight=0;
161                         ($startfrom==($i-1)) && ($highlight=1);
162                         push @numbers, { number => $i,
163                                         highlight => $highlight ,
164                                         searchdata=> \@field_data,
165                                         startfrom => ($i-1)};
166                         }
167         }
168         }
169
170         my $from = $startfrom*$resultsperpage+1;
171         my $to;
172
173         if($total < (($startfrom+1)*$resultsperpage))
174         {
175                 $to = $total;
176         } else {
177                 $to = (($startfrom+1)*$resultsperpage);
178         }
179
180         $template->param(result => $results,
181                                                         startfrom=> $startfrom,
182                                                         displaynext=> $displaynext,
183                                                         displayprev=> $displayprev,
184                                                         resultsperpage => $resultsperpage,
185                                                         startfromnext => $startfrom+1,
186                                                         startfromprev => $startfrom-1,
187                                                         searchdata=>\@field_data,
188                                                         total=>$total,
189                                                         from=>$from,
190                                                         to=>$to,
191                                                         numbers=>\@numbers
192                                                         );
193
194 } elsif ($op eq "AddStatement") {
195
196         ($template, $loggedinuser, $cookie)
197                 = get_template_and_user({template_name => "search.marc/search.tmpl",
198                                 query => $query,
199                                 type => $type,
200                                 authnotrequired => 0,
201                                 flagsrequired => {catalogue => 1},
202                                 debug => 1,
203                                 });
204
205         # Gets the entered information
206         my @marcfields = $query->param('marclist');
207         my @and_or = $query->param('and_or');
208         my @excluding = $query->param('excluding');
209         my @operator = $query->param('operator');
210         my @value = $query->param('value');
211
212         my @statements = ();
213
214         # List of the marc tags to display
215         my $marcarray = create_marclist();
216
217         my $nbstatements = $query->param('nbstatements');
218         $nbstatements = 1 if(!defined $nbstatements);
219
220         for(my $i = 0 ; $i < $nbstatements ; $i++)
221         {
222                 my %fields = ();
223
224                 # Recreates the old scrolling lists with the previously selected values
225                 my $marclist = create_scrolling_list({name=>"marclist",
226                                         values=> $marcarray,
227                                         size=> 1,
228                                         default=>$marcfields[$i],
229                                         onChange => "sql_update()"}
230                                         );
231
232                 $fields{'marclist'} = $marclist;
233                 $fields{'first'} = 1 if($i == 0);
234
235                 # Restores the and/or parameters (no need to test the 'and' for activation because it's the default value)
236                 $fields{'or'} = 1 if($and_or[$i] eq "or");
237
238                 #Restores the "not" parameters
239                 $fields{'not'} = 1 if($excluding[$i]);
240
241                 #Restores the operators (most common operators first);
242                 if($operator[$i] eq "=") { $fields{'eq'} = 1; }
243                 elsif($operator[$i] eq "contains") { $fields{'contains'} = 1; }
244                 elsif($operator[$i] eq "start") { $fields{'start'} = 1; }
245                 elsif($operator[$i] eq ">") { $fields{'gt'} = 1; }      #greater than
246                 elsif($operator[$i] eq ">=") { $fields{'ge'} = 1; } #greater or equal
247                 elsif($operator[$i] eq "<") { $fields{'lt'} = 1; } #lower than
248                 elsif($operator[$i] eq "<=") { $fields{'le'} = 1; } #lower or equal
249
250                 #Restores the value
251                 $fields{'value'} = $value[$i];
252
253                 push @statements, \%fields;
254         }
255         $nbstatements++;
256
257         # The new scrolling list
258         my $marclist = create_scrolling_list({name=>"marclist",
259                                 values=> $marcarray,
260                                 size=>1,
261                                 onChange => "sql_update()"});
262         push @statements, {"marclist" => $marclist };
263
264         $template->param("statements" => \@statements,
265                                                 "nbstatements" => $nbstatements);
266
267 }
268 else {
269         ($template, $loggedinuser, $cookie)
270                 = get_template_and_user({template_name => "search.marc/search.tmpl",
271                                 query => $query,
272                                 type => $type,
273                                 authnotrequired => 0,
274                                 flagsrequired => {catalogue => 1},
275                                 debug => 1,
276                                 });
277         #$template->param(loggedinuser => $loggedinuser);
278
279         my $marcarray = create_marclist();
280
281         my $marclist = CGI::scrolling_list(-name=>"marclist",
282                                         -values=> $marcarray,
283                                         -size=>1,
284                                         -multiple=>0,
285                                         -onChange => "sql_update()",
286                                         );
287
288         my @statements = ();
289
290         # Considering initial search with 3 criterias
291         push @statements, { "marclist" => $marclist, "first" => 1 };
292         push @statements, { "marclist" => $marclist, "first" => 0 };
293         push @statements, { "marclist" => $marclist, "first" => 0 };
294
295         $template->param("statements" => \@statements, "nbstatements" => 3);
296 }
297
298
299 # Print the page
300 output_html_with_http_headers $query, $cookie, $template->output;
301
302 # Local Variables:
303 # tab-width: 4
304 # End: