catalogue/search.pl

   1 #!/usr/bin/perl
   2 # Script to perform searching
   3 # For documentation try 'perldoc /path/to/search'
   4 #
   5 # Copyright 2006 LibLime
   6 #
   7 # This file is part of Koha
   8 #
   9 # Koha is free software; you can redistribute it and/or modify it under the
  10 # terms of the GNU General Public License as published by the Free Software
  11 # Foundation; either version 2 of the License, or (at your option) any later
  12 # version.
  13 #
  14 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  15 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  16 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License along with
  19 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  20 # Suite 330, Boston, MA  02111-1307 USA
  21
  22 =head1 NAME
  23
  24 search - a search script for finding records in a Koha system (Version 3)
  25
  26 =head1 OVERVIEW
  27
  28 This script utilizes a new search API for Koha 3. It is designed to be
  29 simple to use and configure, yet capable of performing feats like stemming,
  30 field weighting, relevance ranking, support for multiple  query language
  31 formats (CCL, CQL, PQF), full support for the bib1 attribute set, extended
  32 attribute sets defined in Zebra profiles, access to the full range of Z39.50
  33 and SRU query options, federated searches on Z39.50/SRU targets, etc.
  34
  35 The API as represented in this script is mostly sound, even if the individual
  36 functions in Search.pm and Koha.pm need to be cleaned up. Of course, you are
  37 free to disagree :-)
  38
  39 I will attempt to describe what is happening at each part of this script.
  40 -- Joshua Ferraro <jmf AT liblime DOT com>
  41
  42 =head2 INTRO
  43
  44 This script performs two functions:
  45
  46 =over
  47
  48 =item 1. interacts with Koha to retrieve and display the results of a search
  49
  50 =item 2. loads the advanced search page
  51
  52 =back
  53
  54 These two functions share many of the same variables and modules, so the first
  55 task is to load what they have in common and determine which template to use.
  56 Once determined, proceed to only load the variables and procedures necessary
  57 for that function.
  58
  59 =head2 LOADING ADVANCED SEARCH PAGE
  60
  61 This is fairly straightforward, and I won't go into detail ;-)
  62
  63 =head2 PERFORMING A SEARCH
  64
  65 If we're performing a search, this script  performs three primary
  66 operations:
  67
  68 =over
  69
  70 =item 1. builds query strings (yes, plural)
  71
  72 =item 2. perform the search and return the results array
  73
  74 =item 3. build the HTML for output to the template
  75
  76 =back
  77
  78 There are several additional secondary functions performed that I will
  79 not cover in detail.
  80
  81 =head3 1. Building Query Strings
  82
  83 There are several types of queries needed in the process of search and retrieve:
  84
  85 =over
  86
  87 =item 1 $query - the fully-built query passed to zebra
  88
  89 This is the most complex query that needs to be built. The original design goal
  90 was to use a custom CCL2PQF query parser to translate an incoming CCL query into
  91 a multi-leaf query to pass to Zebra. It needs to be multi-leaf to allow field
  92 weighting, koha-specific relevance ranking, and stemming. When I have a chance
  93 I'll try to flesh out this section to better explain.
  94
  95 This query incorporates query profiles that aren't compatible with most non-Zebra
  96 Z39.50 targets to acomplish the field weighting and relevance ranking.
  97
  98 =item 2 $simple_query - a simple query that doesn't contain the field weighting,
  99 stemming, etc., suitable to pass off to other search targets
 100
 101 This query is just the user's query expressed in CCL CQL, or PQF for passing to a
 102 non-zebra Z39.50 target (one that doesn't support the extended profile that Zebra does).
 103
 104 =item 3 $query_cgi - passed to the template / saved for future refinements of
 105 the query (by user)
 106
 107 This is a simple string that completely expresses the query as a CGI string that
 108 can be used for future refinements of the query or as a part of a history feature.
 109
 110 =item 4 $query_desc - Human search description - what the user sees in search
 111 feedback area
 112
 113 This is a simple string that is human readable. It will contain '=', ',', etc.
 114
 115 =back
 116
 117 =head3 2. Perform the Search
 118
 119 This section takes the query strings and performs searches on the named servers,
 120 including the Koha Zebra server, stores the results in a deeply nested object,
 121 builds 'faceted results', and returns these objects.
 122
 123 =head3 3. Build HTML
 124
 125 The final major section of this script takes the objects collected thusfar and
 126 builds the HTML for output to the template and user.
 127
 128 =head3 Additional Notes
 129
 130 Not yet completed...
 131
 132 =cut
 133
 134 use strict;            # always use
 135
 136 ## STEP 1. Load things that are used in both search page and
 137 # results page and decide which template to load, operations
 138 # to perform, etc.
 139
 140 ## load Koha modules
 141 use C4::Context;
 142 use C4::Output;
 143 use C4::Auth qw(:DEFAULT get_session);
 144 use C4::Search;
 145 use C4::Languages qw(getAllLanguages);
 146 use C4::Koha;
 147 use C4::VirtualShelves qw(GetRecentShelves);
 148 use POSIX qw(ceil floor);
 149 use C4::Branch; # GetBranches
 150
 151 # create a new CGI object
 152 # FIXME: no_undef_params needs to be tested
 153 use CGI qw('-no_undef_params');
 154 my $cgi = new CGI;
 155
 156 my ($template,$borrowernumber,$cookie);
 157
 158 # decide which template to use
 159 my $template_name;
 160 my $template_type;
 161 my @params = $cgi->param("limit");
 162 if ((@params>=1) || ($cgi->param("q")) || ($cgi->param('multibranchlimit')) || ($cgi->param('limit-yr')) ) {
 163     $template_name = 'catalogue/results.tmpl';
 164 }
 165 else {
 166     $template_name = 'catalogue/advsearch.tmpl';
 167     $template_type = 'advsearch';
 168 }
 169 # load the template
 170 ($template, $borrowernumber, $cookie) = get_template_and_user({
 171     template_name => $template_name,
 172     query => $cgi,
 173     type => "intranet",
 174     authnotrequired => 0,
 175     flagsrequired   => { catalogue => 1 },
 176     }
 177 );
 178 if (C4::Context->preference("marcflavour") eq "UNIMARC" ) {
 179     $template->param('UNIMARC' => 1);
 180 }
 181
 182 ## URI Re-Writing
 183 # Deprecated, but preserved because it's interesting :-)
 184 # The same thing can be accomplished with mod_rewrite in
 185 # a more elegant way
 186 #
 187 #my $rewrite_flag;
 188 #my $uri = $cgi->url(-base => 1);
 189 #my $relative_url = $cgi->url(-relative=>1);
 190 #$uri.="/".$relative_url."?";
 191 #warn "URI:$uri";
 192 #my @cgi_params_list = $cgi->param();
 193 #my $url_params = $cgi->Vars;
 194 #
 195 #for my $each_param_set (@cgi_params_list) {
 196 #    $uri.= join "",  map "\&$each_param_set=".$_, split("\0",$url_params->{$each_param_set}) if $url_params->{$each_param_set};
 197 #}
 198 #warn "New URI:$uri";
 199 # Only re-write a URI if there are params or if it already hasn't been re-written
 200 #unless (($cgi->param('r')) || (!$cgi->param()) ) {
 201 #    print $cgi->redirect(     -uri=>$uri."&r=1",
 202 #                            -cookie => $cookie);
 203 #    exit;
 204 #}
 205
 206 # load the branches
 207 my $branches = GetBranches();
 208 my @branch_loop;
 209
 210 # we need to know the borrower branch code to set a default branch
 211 my $borrowerbranchcode = C4::Context->userenv->{'branch'};
 212
 213 for my $branch_hash (sort { $branches->{$a}->{branchname} cmp $branches->{$b}->{branchname} } keys %$branches) {
 214     # if independantbranches is activated, set the default branch to the borrower branch
 215     my $selected = (C4::Context->preference("independantbranches") and ($borrowerbranchcode eq $branch_hash)) ? 1 : undef;
 216     push @branch_loop, {value => "$branch_hash" , branchname => $branches->{$branch_hash}->{'branchname'}, selected => $selected};
 217 }
 218
 219 my $categories = GetBranchCategories(undef,'searchdomain');
 220
 221 $template->param(branchloop => \@branch_loop, searchdomainloop => $categories);
 222
 223 # load the Type stuff
 224 # load the Type stuff
 225 my $itemtypes = GetItemTypes;
 226 # the index parameter is different for item-level itemtypes
 227 my $itype_or_itemtype = (C4::Context->preference("item-level_itypes"))?'itype':'itemtype';
 228 my @itemtypesloop;
 229 my $selected=1;
 230 my $cnt;
 231 my $advanced_search_types = C4::Context->preference("AdvancedSearchTypes");
 232
 233 if (!$advanced_search_types or $advanced_search_types eq 'itemtypes') {                                                                 foreach my $thisitemtype ( sort {$itemtypes->{$a}->{'description'} cmp $itemtypes->{$b}->{'description'} } keys %$itemtypes ) {
 234     my %row =(  number=>$cnt++,
 235                 ccl => $itype_or_itemtype,
 236                 code => $thisitemtype,
 237                 selected => $selected,
 238                 description => $itemtypes->{$thisitemtype}->{'description'},
 239                 count5 => $cnt % 4,
 240                 imageurl=> getitemtypeimagelocation( 'intranet', $itemtypes->{$thisitemtype}->{'imageurl'} ),
 241             );
 242         $selected = 0 if ($selected) ;
 243         push @itemtypesloop, \%row;
 244     }
 245     $template->param(itemtypeloop => \@itemtypesloop);
 246 } else {
 247     my $advsearchtypes = GetAuthorisedValues($advanced_search_types);
 248     for my $thisitemtype (sort {$a->{'lib'} cmp $b->{'lib'}} @$advsearchtypes) {
 249         my %row =(
 250                 number=>$cnt++,
 251                 ccl => $advanced_search_types,
 252                 code => $thisitemtype->{authorised_value},
 253                 selected => $selected,
 254                 description => $thisitemtype->{'lib'},
 255                 count5 => $cnt % 4,
 256                 imageurl=> getitemtypeimagelocation( 'intranet', $thisitemtype->{'imageurl'} ),
 257             );
 258         push @itemtypesloop, \%row;
 259     }
 260     $template->param(itemtypeloop => \@itemtypesloop);
 261 }
 262
 263 # The following should only be loaded if we're bringing up the advanced search template
 264 if ( $template_type eq 'advsearch' ) {
 265
 266     # load the servers (used for searching -- to do federated searching, etc.)
 267     my $primary_servers_loop;# = displayPrimaryServers();
 268     $template->param(outer_servers_loop =>  $primary_servers_loop,);
 269
 270     my $secondary_servers_loop;
 271     $template->param(outer_sup_servers_loop => $secondary_servers_loop,);
 272
 273     # set the default sorting
 274     my $default_sort_by = C4::Context->preference('defaultSortField')."_".C4::Context->preference('defaultSortOrder')
 275         if (C4::Context->preference('OPACdefaultSortField') && C4::Context->preference('OPACdefaultSortOrder'));
 276     $template->param($default_sort_by => 1);
 277
 278     # determine what to display next to the search boxes (ie, boolean option
 279     # shouldn't appear on the first one, scan indexes should, adding a new
 280     # box should only appear on the last, etc.
 281     my @search_boxes_array;
 282     my $search_boxes_count = C4::Context->preference("OPACAdvSearchInputCount") || 3; # FIXME: using OPAC sysprefs?
 283     # FIXME: all this junk can be done in TMPL using __first__ and __last__
 284     for (my $i=1;$i<=$search_boxes_count;$i++) {
 285         # if it's the first one, don't display boolean option, but show scan indexes
 286         if ($i==1) {
 287             push @search_boxes_array, {scan_index => 1};
 288         }
 289         # if it's the last one, show the 'add field' box
 290         elsif ($i==$search_boxes_count) {
 291             push @search_boxes_array,
 292                 {
 293                 boolean => 1,
 294                 add_field => 1,
 295                 };
 296         }
 297         else {
 298             push @search_boxes_array,
 299                 {
 300                 boolean => 1,
 301                 };
 302         }
 303
 304     }
 305     $template->param(uc(C4::Context->preference("marcflavour")) => 1,
 306                       search_boxes_loop => \@search_boxes_array);
 307
 308     # load the language limits (for search)
 309     my $languages_limit_loop = getAllLanguages();
 310     $template->param(search_languages_loop => $languages_limit_loop,);
 311
 312     # use the global setting by default
 313     if ( C4::Context->preference("expandedSearchOption") == 1) {
 314         $template->param( expanded_options => C4::Context->preference("expandedSearchOption") );
 315     }
 316     # but let the user override it
 317     if ( ($cgi->param('expanded_options') == 0) || ($cgi->param('expanded_options') == 1 ) ) {
 318         $template->param( expanded_options => $cgi->param('expanded_options'));
 319     }
 320
 321     $template->param(virtualshelves => C4::Context->preference("virtualshelves"));
 322
 323     output_html_with_http_headers $cgi, $cookie, $template->output;
 324     exit;
 325 }
 326
 327 ### OK, if we're this far, we're performing a search, not just loading the advanced search page
 328
 329 # Fetch the paramater list as a hash in scalar context:
 330 #  * returns paramater list as tied hash ref
 331 #  * we can edit the values by changing the key
 332 #  * multivalued CGI paramaters are returned as a packaged string separated by "\0" (null)
 333 my $params = $cgi->Vars;
 334
 335 # Params that can have more than one value
 336 # sort by is used to sort the query
 337 # in theory can have more than one but generally there's just one
 338 my @sort_by;
 339 my $default_sort_by = C4::Context->preference('defaultSortField')."_".C4::Context->preference('defaultSortOrder')
 340     if (C4::Context->preference('defaultSortField') && C4::Context->preference('defaultSortOrder'));
 341
 342 @sort_by = split("\0",$params->{'sort_by'}) if $params->{'sort_by'};
 343 $sort_by[0] = $default_sort_by unless $sort_by[0];
 344 foreach my $sort (@sort_by) {
 345     $template->param($sort => 1);
 346 }
 347 $template->param('sort_by' => $sort_by[0]);
 348
 349 # Use the servers defined, or just search our local catalog(default)
 350 my @servers;
 351 @servers = split("\0",$params->{'server'}) if $params->{'server'};
 352 unless (@servers) {
 353     #FIXME: this should be handled using Context.pm
 354     @servers = ("biblioserver");
 355     # @servers = C4::Context->config("biblioserver");
 356 }
 357 # operators include boolean and proximity operators and are used
 358 # to evaluate multiple operands
 359 my @operators;
 360 @operators = split("\0",$params->{'op'}) if $params->{'op'};
 361
 362 # indexes are query qualifiers, like 'title', 'author', etc. They
 363 # can be single or multiple parameters separated by comma: kw,right-Truncation
 364 my @indexes;
 365 @indexes = split("\0",$params->{'idx'});
 366
 367 # if a simple index (only one)  display the index used in the top search box
 368 if ($indexes[0] && !$indexes[1]) {
 369     $template->param("ms_".$indexes[0] => 1);}
 370
 371
 372 # an operand can be a single term, a phrase, or a complete ccl query
 373 my @operands;
 374 @operands = split("\0",$params->{'q'}) if $params->{'q'};
 375
 376 # limits are use to limit to results to a pre-defined category such as branch or language
 377 my @limits;
 378 @limits = split("\0",$params->{'limit'}) if $params->{'limit'};
 379
 380 if($params->{'multibranchlimit'}) {
 381 push @limits, join(" or ", map { "branch: $_ "}  @{GetBranchesInCategory($params->{'multibranchlimit'})}) ;
 382 }
 383
 384 my $available;
 385 foreach my $limit(@limits) {
 386     if ($limit =~/available/) {
 387         $available = 1;
 388     }
 389 }
 390 $template->param(available => $available);
 391
 392 # append year limits if they exist
 393 my $limit_yr;
 394 my $limit_yr_value;
 395 if ($params->{'limit-yr'}) {
 396     if ($params->{'limit-yr'} =~ /\d{4}-\d{4}/) {
 397         my ($yr1,$yr2) = split(/-/, $params->{'limit-yr'});
 398         $limit_yr = "yr,st-numeric,ge=$yr1 and yr,st-numeric,le=$yr2";
 399         $limit_yr_value = "$yr1-$yr2";
 400     }
 401     elsif ($params->{'limit-yr'} =~ /\d{4}/) {
 402         $limit_yr = "yr,st-numeric=$params->{'limit-yr'}";
 403         $limit_yr_value = $params->{'limit-yr'};
 404     }
 405     push @limits,$limit_yr;
 406     #FIXME: Should return a error to the user, incorect date format specified
 407 }
 408
 409 # convert indexes and operands to corresponding parameter names for the z3950 search
 410 # $ %z3950p will be a hash ref if the indexes are present (advacned search), otherwise undef
 411 my $z3950par;
 412 my $indexes2z3950 = {
 413         kw=>'title', au=>'author', 'au,phr'=>'author', nb=>'isbn', ns=>'issn',
 414         'lcn,phr'=>'dewey', su=>'subject', 'su,phr'=>'subject',
 415         ti=>'title', 'ti,phr'=>'title', se=>'title'
 416 };
 417 for (my $ii = 0; $ii < @operands; ++$ii)
 418 {
 419         my $name = $indexes2z3950->{$indexes[$ii]};
 420         if (defined $name && defined $operands[$ii])
 421         {
 422                 $z3950par ||= {};
 423                 $z3950par->{$name} = $operands[$ii] if !exists $z3950par->{$name};
 424         }
 425 }
 426
 427
 428 # Params that can only have one value
 429 my $scan = $params->{'scan'};
 430 my $count = C4::Context->preference('numSearchResults') || 20;
 431 my $results_per_page = $params->{'count'} || $count;
 432 my $offset = $params->{'offset'} || 0;
 433 my $page = $cgi->param('page') || 1;
 434 #my $offset = ($page-1)*$results_per_page;
 435 my $hits;
 436 my $expanded_facet = $params->{'expand'};
 437
 438 # Define some global variables
 439 my ( $error,$query,$simple_query,$query_cgi,$query_desc,$limit,$limit_cgi,$limit_desc,$stopwords_removed,$query_type);
 440
 441 my @results;
 442
 443 ## I. BUILD THE QUERY
 444 my $lang = C4::Output::getlanguagecookie($cgi);
 445 ( $error,$query,$simple_query,$query_cgi,$query_desc,$limit,$limit_cgi,$limit_desc,$stopwords_removed,$query_type) = buildQuery(\@operators,\@operands,\@indexes,\@limits,\@sort_by,$scan,$lang);
 446
 447 ## parse the query_cgi string and put it into a form suitable for <input>s
 448 my @query_inputs;
 449 my $scan_index_to_use;
 450
 451 for my $this_cgi ( split('&',$query_cgi) ) {
 452     next unless $this_cgi;
 453     $this_cgi =~ m/(.*=)(.*)/;
 454     my $input_name = $1;
 455     my $input_value = $2;
 456     $input_name =~ s/=$//;
 457     push @query_inputs, { input_name => $input_name, input_value => $input_value };
 458         if ($input_name eq 'idx') {
 459         $scan_index_to_use = $input_value; # unless $scan_index_to_use;
 460         }
 461 }
 462 $template->param ( QUERY_INPUTS => \@query_inputs,
 463                    scan_index_to_use => $scan_index_to_use );
 464
 465 ## parse the limit_cgi string and put it into a form suitable for <input>s
 466 my @limit_inputs;
 467 for my $this_cgi ( split('&',$limit_cgi) ) {
 468     next unless $this_cgi;
 469     # handle special case limit-yr
 470     if ($this_cgi =~ /yr,st-numeric/) {
 471         push @limit_inputs, { input_name => 'limit-yr', input_value => $limit_yr_value };
 472         next;
 473     }
 474     $this_cgi =~ m/(.*=)(.*)/;
 475     my $input_name = $1;
 476     my $input_value = $2;
 477     $input_name =~ s/=$//;
 478     push @limit_inputs, { input_name => $input_name, input_value => $input_value };
 479 }
 480 $template->param ( LIMIT_INPUTS => \@limit_inputs );
 481
 482 ## II. DO THE SEARCH AND GET THE RESULTS
 483 my $total; # the total results for the whole set
 484 my $facets; # this object stores the faceted results that display on the left-hand of the results page
 485 my @results_array;
 486 my $results_hashref;
 487
 488 if (C4::Context->preference('NoZebra')) {
 489     $query=~s/yr(:|=)\s*([\d]{1,4})-([\d]{1,4})/(yr>=$2 and yr<=$3)/g;
 490     $simple_query=~s/yr\s*(:|=)([\d]{1,4})-([\d]{1,4})/(yr>=$2 and yr<=$3)/g;
 491     # warn $query;
 492     eval {
 493         ($error, $results_hashref, $facets) = NZgetRecords($query,$simple_query,\@sort_by,\@servers,$results_per_page,$offset,$expanded_facet,$branches,$query_type,$scan);
 494     };
 495 } else {
 496     eval {
 497         ($error, $results_hashref, $facets) = getRecords($query,$simple_query,\@sort_by,\@servers,$results_per_page,$offset,$expanded_facet,$branches,$query_type,$scan);
 498     };
 499 }
 500 if ($@ || $error) {
 501     $template->param(query_error => $error.$@);
 502     output_html_with_http_headers $cgi, $cookie, $template->output;
 503     exit;
 504 }
 505
 506 # At this point, each server has given us a result set
 507 # now we build that set for template display
 508 my @sup_results_array;
 509 for (my $i=0;$i<@servers;$i++) {
 510     my $server = $servers[$i];
 511     if ($server =~/biblioserver/) { # this is the local bibliographic server
 512         $hits = $results_hashref->{$server}->{"hits"};
 513         my $page = $cgi->param('page') || 0;
 514         my @newresults = searchResults( $query_desc,$hits,$results_per_page,$offset,$scan,@{$results_hashref->{$server}->{"RECORDS"}});
 515         $total = $total + $results_hashref->{$server}->{"hits"};
 516         ## If there's just one result, redirect to the detail page
 517         if ($total == 1) {
 518             my $biblionumber = $newresults[0]->{biblionumber};
 519                         my $defaultview = C4::Context->preference('IntranetBiblioDefaultView');
 520                         my $views = { C4::Search::enabled_staff_search_views };
 521             if ($defaultview eq 'isbd' && $views->{can_view_ISBD}) {
 522                 print $cgi->redirect("/cgi-bin/koha/catalogue/ISBDdetail.pl?biblionumber=$biblionumber");
 523             } elsif  ($defaultview eq 'marc' && $views->{can_view_MARC}) {
 524                 print $cgi->redirect("/cgi-bin/koha/catalogue/MARCdetail.pl?biblionumber=$biblionumber");
 525             } elsif  ($defaultview eq 'labeled_marc' && $views->{can_view_labeledMARC}) {
 526                 print $cgi->redirect("/cgi-bin/koha/catalogue/labeledMARCdetail.pl?biblionumber=$biblionumber");
 527             } else {
 528                 print $cgi->redirect("/cgi-bin/koha/catalogue/detail.pl?biblionumber=$biblionumber");
 529             }
 530             exit;
 531         }
 532
 533
 534         if ($hits) {
 535             $template->param(total => $hits);
 536             my $limit_cgi_not_availablity = $limit_cgi;
 537             $limit_cgi_not_availablity =~ s/&limit=available//g;
 538             $template->param(limit_cgi_not_availablity => $limit_cgi_not_availablity);
 539             $template->param(limit_cgi => $limit_cgi);
 540             $template->param(query_cgi => $query_cgi);
 541             $template->param(query_desc => $query_desc);
 542             $template->param(limit_desc => $limit_desc);
 543                         $template->param (z3950_search_params => C4::Search::z3950_search_args($query_desc));
 544             if ($query_desc || $limit_desc) {
 545                 $template->param(searchdesc => 1);
 546             }
 547             $template->param(stopwords_removed => "@$stopwords_removed") if $stopwords_removed;
 548             $template->param(results_per_page =>  $results_per_page);
 549             $template->param(SEARCH_RESULTS => \@newresults);
 550
 551             ## FIXME: add a global function for this, it's better than the current global one
 552             ## Build the page numbers on the bottom of the page
 553             my @page_numbers;
 554             # total number of pages there will be
 555             my $pages = ceil($hits / $results_per_page);
 556             # default page number
 557             my $current_page_number = 1;
 558             $current_page_number = ($offset / $results_per_page + 1) if $offset;
 559             my $previous_page_offset = $offset - $results_per_page unless ($offset - $results_per_page <0);
 560             my $next_page_offset = $offset + $results_per_page;
 561             # If we're within the first 10 pages, keep it simple
 562             #warn "current page:".$current_page_number;
 563             if ($current_page_number < 10) {
 564                 # just show the first 10 pages
 565                 # Loop through the pages
 566                 my $pages_to_show = 10;
 567                 $pages_to_show = $pages if $pages<10;
 568                 for (my $i=1; $i<=$pages_to_show;$i++) {
 569                     # the offset for this page
 570                     my $this_offset = (($i*$results_per_page)-$results_per_page);
 571                     # the page number for this page
 572                     my $this_page_number = $i;
 573                     # it should only be highlighted if it's the current page
 574                     my $highlight = 1 if ($this_page_number == $current_page_number);
 575                     # put it in the array
 576                     push @page_numbers, { offset => $this_offset, pg => $this_page_number, highlight => $highlight, sort_by => join " ",@sort_by };
 577
 578                 }
 579
 580             }
 581
 582             # now, show twenty pages, with the current one smack in the middle
 583             else {
 584                 for (my $i=$current_page_number; $i<=($current_page_number + 20 );$i++) {
 585                     my $this_offset = ((($i-9)*$results_per_page)-$results_per_page);
 586                     my $this_page_number = $i-9;
 587                     my $highlight = 1 if ($this_page_number == $current_page_number);
 588                     if ($this_page_number <= $pages) {
 589                         push @page_numbers, { offset => $this_offset, pg => $this_page_number, highlight => $highlight, sort_by => join " ",@sort_by };
 590                     }
 591                 }
 592             }
 593             # FIXME: no previous_page_offset when pages < 2
 594             $template->param(   PAGE_NUMBERS => \@page_numbers,
 595                                 previous_page_offset => $previous_page_offset) unless $pages < 2;
 596             $template->param(   next_page_offset => $next_page_offset) unless $pages eq $current_page_number;
 597         }
 598
 599
 600         # no hits
 601         else {
 602             $template->param(searchdesc => 1,query_desc => $query_desc,limit_desc => $limit_desc);
 603                         $template->param (z3950_search_params => C4::Search::z3950_search_args($z3950par || $query_desc));
 604         }
 605
 606     } # end of the if local
 607
 608     # asynchronously search the authority server
 609     elsif ($server =~/authorityserver/) { # this is the local authority server
 610         my @inner_sup_results_array;
 611         for my $sup_record ( @{$results_hashref->{$server}->{"RECORDS"}} ) {
 612             my $marc_record_object = MARC::Record->new_from_usmarc($sup_record);
 613             # warn "Authority Found: ".$marc_record_object->as_formatted();
 614             push @inner_sup_results_array, {
 615                 'title' => $marc_record_object->field(100)->subfield('a'),
 616                 'link' => "&amp;idx=an&amp;q=".$marc_record_object->field('001')->as_string(),
 617             };
 618         }
 619         push @sup_results_array, {  servername => $server,
 620                                     inner_sup_results_loop => \@inner_sup_results_array} if @inner_sup_results_array;
 621     }
 622     # FIXME: can add support for other targets as needed here
 623     $template->param(           outer_sup_results_loop => \@sup_results_array);
 624 } #/end of the for loop
 625 #$template->param(FEDERATED_RESULTS => \@results_array);
 626
 627
 628 $template->param(
 629             #classlist => $classlist,
 630             total => $total,
 631             opacfacets => 1,
 632             facets_loop => $facets,
 633             scan => $scan,
 634             search_error => $error,
 635 );
 636
 637 if ($query_desc || $limit_desc) {
 638     $template->param(searchdesc => 1);
 639 }
 640
 641 # VI. BUILD THE TEMPLATE
 642
 643 # Build drop-down list for 'Add To:' menu...
 644
 645 my $row_count = 10; # FIXME:This probably should be a syspref
 646 my ($pubshelves, $total) = GetRecentShelves(2, $row_count, undef);
 647 my ($barshelves, $total) = GetRecentShelves(1, $row_count, $borrowernumber);
 648
 649 my @pubshelves = @{$pubshelves};
 650 my @barshelves = @{$barshelves};
 651
 652 if (@pubshelves) {
 653         $template->param( addpubshelves     => scalar (@pubshelves));
 654         $template->param( addpubshelvesloop => @pubshelves);
 655 }
 656
 657 if (@barshelves) {
 658         $template->param( addbarshelves     => scalar (@barshelves));
 659         $template->param( addbarshelvesloop => @barshelves);
 660 }
 661
 662
 663
 664 output_html_with_http_headers $cgi, $cookie, $template->output;