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
  19 # with Koha; if not, write to the Free Software Foundation, Inc.,
  20 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 #use warnings; FIXME - Bug 2505
 136
 137 ## STEP 1. Load things that are used in both search page and
 138 # results page and decide which template to load, operations
 139 # to perform, etc.
 140
 141 ## load Koha modules
 142 use C4::Context;
 143 use C4::Output;
 144 use C4::Auth qw(:DEFAULT get_session);
 145 use C4::Search;
 146 use C4::Languages qw(getAllLanguages);
 147 use C4::Koha;
 148 use C4::VirtualShelves qw(GetRecentShelves);
 149 use POSIX qw(ceil floor);
 150 use C4::Branch; # GetBranches
 151
 152 # create a new CGI object
 153 # FIXME: no_undef_params needs to be tested
 154 use CGI qw('-no_undef_params');
 155 my $cgi = new CGI;
 156
 157 my ($template,$borrowernumber,$cookie);
 158
 159 # decide which template to use
 160 my $template_name;
 161 my $template_type;
 162 my @params = $cgi->param("limit");
 163 if ((@params>=1) || ($cgi->param("q")) || ($cgi->param('multibranchlimit')) || ($cgi->param('limit-yr')) ) {
 164     $template_name = 'catalogue/results.tmpl';
 165 }
 166 else {
 167     $template_name = 'catalogue/advsearch.tmpl';
 168     $template_type = 'advsearch';
 169 }
 170 # load the template
 171 ($template, $borrowernumber, $cookie) = get_template_and_user({
 172     template_name => $template_name,
 173     query => $cgi,
 174     type => "intranet",
 175     authnotrequired => 0,
 176     flagsrequired   => { catalogue => 1 },
 177     }
 178 );
 179 if (C4::Context->preference("marcflavour") eq "UNIMARC" ) {
 180     $template->param('UNIMARC' => 1);
 181 }
 182
 183 ## URI Re-Writing
 184 # Deprecated, but preserved because it's interesting :-)
 185 # The same thing can be accomplished with mod_rewrite in
 186 # a more elegant way
 187 #
 188 #my $rewrite_flag;
 189 #my $uri = $cgi->url(-base => 1);
 190 #my $relative_url = $cgi->url(-relative=>1);
 191 #$uri.="/".$relative_url."?";
 192 #warn "URI:$uri";
 193 #my @cgi_params_list = $cgi->param();
 194 #my $url_params = $cgi->Vars;
 195 #
 196 #for my $each_param_set (@cgi_params_list) {
 197 #    $uri.= join "",  map "\&$each_param_set=".$_, split("\0",$url_params->{$each_param_set}) if $url_params->{$each_param_set};
 198 #}
 199 #warn "New URI:$uri";
 200 # Only re-write a URI if there are params or if it already hasn't been re-written
 201 #unless (($cgi->param('r')) || (!$cgi->param()) ) {
 202 #    print $cgi->redirect(     -uri=>$uri."&r=1",
 203 #                            -cookie => $cookie);
 204 #    exit;
 205 #}
 206
 207 # load the branches
 208 my $branches = GetBranches();
 209 my @branch_loop;
 210
 211 # we need to know the borrower branch code to set a default branch
 212 my $borrowerbranchcode = C4::Context->userenv->{'branch'};
 213
 214 for my $branch_hash (sort { $branches->{$a}->{branchname} cmp $branches->{$b}->{branchname} } keys %$branches) {
 215     # if independantbranches is activated, set the default branch to the borrower branch
 216     my $selected = (C4::Context->preference("independantbranches") and ($borrowerbranchcode eq $branch_hash)) ? 1 : undef;
 217     push @branch_loop, {value => "$branch_hash" , branchname => $branches->{$branch_hash}->{'branchname'}, selected => $selected};
 218 }
 219
 220 my $categories = GetBranchCategories(undef,'searchdomain');
 221
 222 $template->param(branchloop => \@branch_loop, searchdomainloop => $categories);
 223
 224 # load the Type stuff
 225 # load the Type stuff
 226 my $itemtypes = GetItemTypes;
 227 # the index parameter is different for item-level itemtypes
 228 my $itype_or_itemtype = (C4::Context->preference("item-level_itypes"))?'itype':'itemtype';
 229 my @itemtypesloop;
 230 my $selected=1;
 231 my $cnt;
 232 my $advanced_search_types = C4::Context->preference("AdvancedSearchTypes");
 233
 234 if (!$advanced_search_types or $advanced_search_types eq 'itemtypes') {                                                                 foreach my $thisitemtype ( sort {$itemtypes->{$a}->{'description'} cmp $itemtypes->{$b}->{'description'} } keys %$itemtypes ) {
 235     my %row =(  number=>$cnt++,
 236                 ccl => $itype_or_itemtype,
 237                 code => $thisitemtype,
 238                 selected => $selected,
 239                 description => $itemtypes->{$thisitemtype}->{'description'},
 240                 count5 => $cnt % 4,
 241                 imageurl=> getitemtypeimagelocation( 'intranet', $itemtypes->{$thisitemtype}->{'imageurl'} ),
 242             );
 243         $selected = 0 if ($selected) ;
 244         push @itemtypesloop, \%row;
 245     }
 246     $template->param(itemtypeloop => \@itemtypesloop);
 247 } else {
 248     my $advsearchtypes = GetAuthorisedValues($advanced_search_types);
 249     for my $thisitemtype (sort {$a->{'lib'} cmp $b->{'lib'}} @$advsearchtypes) {
 250         my %row =(
 251                 number=>$cnt++,
 252                 ccl => $advanced_search_types,
 253                 code => $thisitemtype->{authorised_value},
 254                 selected => $selected,
 255                 description => $thisitemtype->{'lib'},
 256                 count5 => $cnt % 4,
 257                 imageurl=> getitemtypeimagelocation( 'intranet', $thisitemtype->{'imageurl'} ),
 258             );
 259         push @itemtypesloop, \%row;
 260     }
 261     $template->param(itemtypeloop => \@itemtypesloop);
 262 }
 263
 264 # The following should only be loaded if we're bringing up the advanced search template
 265 if ( $template_type eq 'advsearch' ) {
 266
 267     # load the servers (used for searching -- to do federated searching, etc.)
 268     my $primary_servers_loop;# = displayPrimaryServers();
 269     $template->param(outer_servers_loop =>  $primary_servers_loop,);
 270
 271     my $secondary_servers_loop;
 272     $template->param(outer_sup_servers_loop => $secondary_servers_loop,);
 273
 274     # set the default sorting
 275     my $default_sort_by = C4::Context->preference('defaultSortField')."_".C4::Context->preference('defaultSortOrder')
 276         if (C4::Context->preference('OPACdefaultSortField') && C4::Context->preference('OPACdefaultSortOrder'));
 277     $template->param($default_sort_by => 1);
 278
 279     # determine what to display next to the search boxes (ie, boolean option
 280     # shouldn't appear on the first one, scan indexes should, adding a new
 281     # box should only appear on the last, etc.
 282     my @search_boxes_array;
 283     my $search_boxes_count = C4::Context->preference("OPACAdvSearchInputCount") || 3; # FIXME: using OPAC sysprefs?
 284     # FIXME: all this junk can be done in TMPL using __first__ and __last__
 285     for (my $i=1;$i<=$search_boxes_count;$i++) {
 286         # if it's the first one, don't display boolean option, but show scan indexes
 287         if ($i==1) {
 288             push @search_boxes_array, {scan_index => 1};
 289         }
 290         # if it's the last one, show the 'add field' box
 291         elsif ($i==$search_boxes_count) {
 292             push @search_boxes_array,
 293                 {
 294                 boolean => 1,
 295                 add_field => 1,
 296                 };
 297         }
 298         else {
 299             push @search_boxes_array,
 300                 {
 301                 boolean => 1,
 302                 };
 303         }
 304
 305     }
 306     $template->param(uc(C4::Context->preference("marcflavour")) => 1,
 307                       search_boxes_loop => \@search_boxes_array);
 308
 309     # load the language limits (for search)
 310     my $languages_limit_loop = getAllLanguages();
 311     $template->param(search_languages_loop => $languages_limit_loop,);
 312
 313     # use the global setting by default
 314     if ( C4::Context->preference("expandedSearchOption") == 1) {
 315         $template->param( expanded_options => C4::Context->preference("expandedSearchOption") );
 316     }
 317     # but let the user override it
 318     if ( ($cgi->param('expanded_options') == 0) || ($cgi->param('expanded_options') == 1 ) ) {
 319         $template->param( expanded_options => $cgi->param('expanded_options'));
 320     }
 321
 322     $template->param(virtualshelves => C4::Context->preference("virtualshelves"));
 323
 324     output_html_with_http_headers $cgi, $cookie, $template->output;
 325     exit;
 326 }
 327
 328 ### OK, if we're this far, we're performing a search, not just loading the advanced search page
 329
 330 # Fetch the paramater list as a hash in scalar context:
 331 #  * returns paramater list as tied hash ref
 332 #  * we can edit the values by changing the key
 333 #  * multivalued CGI paramaters are returned as a packaged string separated by "\0" (null)
 334 my $params = $cgi->Vars;
 335
 336 # Params that can have more than one value
 337 # sort by is used to sort the query
 338 # in theory can have more than one but generally there's just one
 339 my @sort_by;
 340 my $default_sort_by = C4::Context->preference('defaultSortField')."_".C4::Context->preference('defaultSortOrder')
 341     if (C4::Context->preference('defaultSortField') && C4::Context->preference('defaultSortOrder'));
 342
 343 @sort_by = split("\0",$params->{'sort_by'}) if $params->{'sort_by'};
 344 $sort_by[0] = $default_sort_by unless $sort_by[0];
 345 foreach my $sort (@sort_by) {
 346     $template->param($sort => 1);
 347 }
 348 $template->param('sort_by' => $sort_by[0]);
 349
 350 # Use the servers defined, or just search our local catalog(default)
 351 my @servers;
 352 @servers = split("\0",$params->{'server'}) if $params->{'server'};
 353 unless (@servers) {
 354     #FIXME: this should be handled using Context.pm
 355     @servers = ("biblioserver");
 356     # @servers = C4::Context->config("biblioserver");
 357 }
 358 # operators include boolean and proximity operators and are used
 359 # to evaluate multiple operands
 360 my @operators;
 361 @operators = split("\0",$params->{'op'}) if $params->{'op'};
 362
 363 # indexes are query qualifiers, like 'title', 'author', etc. They
 364 # can be single or multiple parameters separated by comma: kw,right-Truncation
 365 my @indexes;
 366 @indexes = split("\0",$params->{'idx'});
 367
 368 # if a simple index (only one)  display the index used in the top search box
 369 if ($indexes[0] && !$indexes[1]) {
 370     $template->param("ms_".$indexes[0] => 1);}
 371
 372
 373 # an operand can be a single term, a phrase, or a complete ccl query
 374 my @operands;
 375 @operands = split("\0",$params->{'q'}) if $params->{'q'};
 376
 377 # limits are use to limit to results to a pre-defined category such as branch or language
 378 my @limits;
 379 @limits = split("\0",$params->{'limit'}) if $params->{'limit'};
 380
 381 if($params->{'multibranchlimit'}) {
 382 push @limits, join(" or ", map { "branch: $_ "}  @{GetBranchesInCategory($params->{'multibranchlimit'})}) ;
 383 }
 384
 385 my $available;
 386 foreach my $limit(@limits) {
 387     if ($limit =~/available/) {
 388         $available = 1;
 389     }
 390 }
 391 $template->param(available => $available);
 392
 393 # append year limits if they exist
 394 my $limit_yr;
 395 my $limit_yr_value;
 396 if ($params->{'limit-yr'}) {
 397     if ($params->{'limit-yr'} =~ /\d{4}-\d{4}/) {
 398         my ($yr1,$yr2) = split(/-/, $params->{'limit-yr'});
 399         $limit_yr = "yr,st-numeric,ge=$yr1 and yr,st-numeric,le=$yr2";
 400         $limit_yr_value = "$yr1-$yr2";
 401     }
 402     elsif ($params->{'limit-yr'} =~ /\d{4}/) {
 403         $limit_yr = "yr,st-numeric=$params->{'limit-yr'}";
 404         $limit_yr_value = $params->{'limit-yr'};
 405     }
 406     push @limits,$limit_yr;
 407     #FIXME: Should return a error to the user, incorect date format specified
 408 }
 409
 410 # convert indexes and operands to corresponding parameter names for the z3950 search
 411 # $ %z3950p will be a hash ref if the indexes are present (advacned search), otherwise undef
 412 my $z3950par;
 413 my $indexes2z3950 = {
 414         kw=>'title', au=>'author', 'au,phr'=>'author', nb=>'isbn', ns=>'issn',
 415         'lcn,phr'=>'dewey', su=>'subject', 'su,phr'=>'subject',
 416         ti=>'title', 'ti,phr'=>'title', se=>'title'
 417 };
 418 for (my $ii = 0; $ii < @operands; ++$ii)
 419 {
 420         my $name = $indexes2z3950->{$indexes[$ii]};
 421         if (defined $name && defined $operands[$ii])
 422         {
 423                 $z3950par ||= {};
 424                 $z3950par->{$name} = $operands[$ii] if !exists $z3950par->{$name};
 425         }
 426 }
 427
 428
 429 # Params that can only have one value
 430 my $scan = $params->{'scan'};
 431 my $count = C4::Context->preference('numSearchResults') || 20;
 432 my $results_per_page = $params->{'count'} || $count;
 433 my $offset = $params->{'offset'} || 0;
 434 my $page = $cgi->param('page') || 1;
 435 #my $offset = ($page-1)*$results_per_page;
 436 my $hits;
 437 my $expanded_facet = $params->{'expand'};
 438
 439 # Define some global variables
 440 my ( $error,$query,$simple_query,$query_cgi,$query_desc,$limit,$limit_cgi,$limit_desc,$stopwords_removed,$query_type);
 441
 442 my @results;
 443
 444 ## I. BUILD THE QUERY
 445 my $lang = C4::Output::getlanguagecookie($cgi);
 446 ( $error,$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);
 447
 448 ## parse the query_cgi string and put it into a form suitable for <input>s
 449 my @query_inputs;
 450 my $scan_index_to_use;
 451
 452 for my $this_cgi ( split('&',$query_cgi) ) {
 453     next unless $this_cgi;
 454     $this_cgi =~ m/(.*=)(.*)/;
 455     my $input_name = $1;
 456     my $input_value = $2;
 457     $input_name =~ s/=$//;
 458     push @query_inputs, { input_name => $input_name, input_value => $input_value };
 459         if ($input_name eq 'idx') {
 460         $scan_index_to_use = $input_value; # unless $scan_index_to_use;
 461         }
 462 }
 463 $template->param ( QUERY_INPUTS => \@query_inputs,
 464                    scan_index_to_use => $scan_index_to_use );
 465
 466 ## parse the limit_cgi string and put it into a form suitable for <input>s
 467 my @limit_inputs;
 468 for my $this_cgi ( split('&',$limit_cgi) ) {
 469     next unless $this_cgi;
 470     # handle special case limit-yr
 471     if ($this_cgi =~ /yr,st-numeric/) {
 472         push @limit_inputs, { input_name => 'limit-yr', input_value => $limit_yr_value };
 473         next;
 474     }
 475     $this_cgi =~ m/(.*=)(.*)/;
 476     my $input_name = $1;
 477     my $input_value = $2;
 478     $input_name =~ s/=$//;
 479     push @limit_inputs, { input_name => $input_name, input_value => $input_value };
 480 }
 481 $template->param ( LIMIT_INPUTS => \@limit_inputs );
 482
 483 ## II. DO THE SEARCH AND GET THE RESULTS
 484 my $total; # the total results for the whole set
 485 my $facets; # this object stores the faceted results that display on the left-hand of the results page
 486 my @results_array;
 487 my $results_hashref;
 488
 489 if (C4::Context->preference('NoZebra')) {
 490     $query=~s/yr(:|=)\s*([\d]{1,4})-([\d]{1,4})/(yr>=$2 and yr<=$3)/g;
 491     $simple_query=~s/yr\s*(:|=)([\d]{1,4})-([\d]{1,4})/(yr>=$2 and yr<=$3)/g;
 492     # warn $query;
 493     eval {
 494         ($error, $results_hashref, $facets) = NZgetRecords($query,$simple_query,\@sort_by,\@servers,$results_per_page,$offset,$expanded_facet,$branches,$query_type,$scan);
 495     };
 496 } else {
 497     eval {
 498         ($error, $results_hashref, $facets) = getRecords($query,$simple_query,\@sort_by,\@servers,$results_per_page,$offset,$expanded_facet,$branches,$query_type,$scan);
 499     };
 500 }
 501 if ($@ || $error) {
 502     $template->param(query_error => $error.$@);
 503     output_html_with_http_headers $cgi, $cookie, $template->output;
 504     exit;
 505 }
 506
 507 # At this point, each server has given us a result set
 508 # now we build that set for template display
 509 my @sup_results_array;
 510 for (my $i=0;$i<@servers;$i++) {
 511     my $server = $servers[$i];
 512     if ($server =~/biblioserver/) { # this is the local bibliographic server
 513         $hits = $results_hashref->{$server}->{"hits"};
 514         my $page = $cgi->param('page') || 0;
 515         my @newresults = searchResults( $query_desc,$hits,$results_per_page,$offset,$scan,@{$results_hashref->{$server}->{"RECORDS"}});
 516         $total = $total + $results_hashref->{$server}->{"hits"};
 517         ## If there's just one result, redirect to the detail page
 518         if ($total == 1) {
 519             my $biblionumber = $newresults[0]->{biblionumber};
 520                         my $defaultview = C4::Context->preference('IntranetBiblioDefaultView');
 521                         my $views = { C4::Search::enabled_staff_search_views };
 522             if ($defaultview eq 'isbd' && $views->{can_view_ISBD}) {
 523                 print $cgi->redirect("/cgi-bin/koha/catalogue/ISBDdetail.pl?biblionumber=$biblionumber");
 524             } elsif  ($defaultview eq 'marc' && $views->{can_view_MARC}) {
 525                 print $cgi->redirect("/cgi-bin/koha/catalogue/MARCdetail.pl?biblionumber=$biblionumber");
 526             } elsif  ($defaultview eq 'labeled_marc' && $views->{can_view_labeledMARC}) {
 527                 print $cgi->redirect("/cgi-bin/koha/catalogue/labeledMARCdetail.pl?biblionumber=$biblionumber");
 528             } else {
 529                 print $cgi->redirect("/cgi-bin/koha/catalogue/detail.pl?biblionumber=$biblionumber");
 530             }
 531             exit;
 532         }
 533
 534
 535         if ($hits) {
 536             $template->param(total => $hits);
 537             my $limit_cgi_not_availablity = $limit_cgi;
 538             $limit_cgi_not_availablity =~ s/&limit=available//g;
 539             $template->param(limit_cgi_not_availablity => $limit_cgi_not_availablity);
 540             $template->param(limit_cgi => $limit_cgi);
 541             $template->param(query_cgi => $query_cgi);
 542             $template->param(query_desc => $query_desc);
 543             $template->param(limit_desc => $limit_desc);
 544                         $template->param (z3950_search_params => C4::Search::z3950_search_args($query_desc));
 545             if ($query_desc || $limit_desc) {
 546                 $template->param(searchdesc => 1);
 547             }
 548             $template->param(stopwords_removed => "@$stopwords_removed") if $stopwords_removed;
 549             $template->param(results_per_page =>  $results_per_page);
 550             $template->param(SEARCH_RESULTS => \@newresults);
 551
 552             ## FIXME: add a global function for this, it's better than the current global one
 553             ## Build the page numbers on the bottom of the page
 554             my @page_numbers;
 555             # total number of pages there will be
 556             my $pages = ceil($hits / $results_per_page);
 557             # default page number
 558             my $current_page_number = 1;
 559             $current_page_number = ($offset / $results_per_page + 1) if $offset;
 560             my $previous_page_offset = $offset - $results_per_page unless ($offset - $results_per_page <0);
 561             my $next_page_offset = $offset + $results_per_page;
 562             # If we're within the first 10 pages, keep it simple
 563             #warn "current page:".$current_page_number;
 564             if ($current_page_number < 10) {
 565                 # just show the first 10 pages
 566                 # Loop through the pages
 567                 my $pages_to_show = 10;
 568                 $pages_to_show = $pages if $pages<10;
 569                 for (my $i=1; $i<=$pages_to_show;$i++) {
 570                     # the offset for this page
 571                     my $this_offset = (($i*$results_per_page)-$results_per_page);
 572                     # the page number for this page
 573                     my $this_page_number = $i;
 574                     # it should only be highlighted if it's the current page
 575                     my $highlight = 1 if ($this_page_number == $current_page_number);
 576                     # put it in the array
 577                     push @page_numbers, { offset => $this_offset, pg => $this_page_number, highlight => $highlight, sort_by => join " ",@sort_by };
 578
 579                 }
 580
 581             }
 582
 583             # now, show twenty pages, with the current one smack in the middle
 584             else {
 585                 for (my $i=$current_page_number; $i<=($current_page_number + 20 );$i++) {
 586                     my $this_offset = ((($i-9)*$results_per_page)-$results_per_page);
 587                     my $this_page_number = $i-9;
 588                     my $highlight = 1 if ($this_page_number == $current_page_number);
 589                     if ($this_page_number <= $pages) {
 590                         push @page_numbers, { offset => $this_offset, pg => $this_page_number, highlight => $highlight, sort_by => join " ",@sort_by };
 591                     }
 592                 }
 593             }
 594             # FIXME: no previous_page_offset when pages < 2
 595             $template->param(   PAGE_NUMBERS => \@page_numbers,
 596                                 previous_page_offset => $previous_page_offset) unless $pages < 2;
 597             $template->param(   next_page_offset => $next_page_offset) unless $pages eq $current_page_number;
 598         }
 599
 600
 601         # no hits
 602         else {
 603             $template->param(searchdesc => 1,query_desc => $query_desc,limit_desc => $limit_desc);
 604                         $template->param (z3950_search_params => C4::Search::z3950_search_args($z3950par || $query_desc));
 605         }
 606
 607     } # end of the if local
 608
 609     # asynchronously search the authority server
 610     elsif ($server =~/authorityserver/) { # this is the local authority server
 611         my @inner_sup_results_array;
 612         for my $sup_record ( @{$results_hashref->{$server}->{"RECORDS"}} ) {
 613             my $marc_record_object = MARC::Record->new_from_usmarc($sup_record);
 614             # warn "Authority Found: ".$marc_record_object->as_formatted();
 615             push @inner_sup_results_array, {
 616                 'title' => $marc_record_object->field(100)->subfield('a'),
 617                 'link' => "&amp;idx=an&amp;q=".$marc_record_object->field('001')->as_string(),
 618             };
 619         }
 620         push @sup_results_array, {  servername => $server,
 621                                     inner_sup_results_loop => \@inner_sup_results_array} if @inner_sup_results_array;
 622     }
 623     # FIXME: can add support for other targets as needed here
 624     $template->param(           outer_sup_results_loop => \@sup_results_array);
 625 } #/end of the for loop
 626 #$template->param(FEDERATED_RESULTS => \@results_array);
 627
 628
 629 $template->param(
 630             #classlist => $classlist,
 631             total => $total,
 632             opacfacets => 1,
 633             facets_loop => $facets,
 634             scan => $scan,
 635             search_error => $error,
 636 );
 637
 638 if ($query_desc || $limit_desc) {
 639     $template->param(searchdesc => 1);
 640 }
 641
 642 # VI. BUILD THE TEMPLATE
 643
 644 # Build drop-down list for 'Add To:' menu...
 645
 646 my $row_count = 10; # FIXME:This probably should be a syspref
 647 my ($pubshelves, $total) = GetRecentShelves(2, $row_count, undef);
 648 my ($barshelves, $total) = GetRecentShelves(1, $row_count, $borrowernumber);
 649
 650 my @pubshelves = @{$pubshelves};
 651 my @barshelves = @{$barshelves};
 652
 653 if (@pubshelves) {
 654         $template->param( addpubshelves     => scalar (@pubshelves));
 655         $template->param( addpubshelvesloop => @pubshelves);
 656 }
 657
 658 if (@barshelves) {
 659         $template->param( addbarshelves     => scalar (@barshelves));
 660         $template->param( addbarshelvesloop => @barshelves);
 661 }
 662
 663
 664
 665 output_html_with_http_headers $cgi, $cookie, $template->output;