tools/batchMod.pl

   1 #!/usr/bin/perl
   2
   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
  18 # with Koha; if not, write to the Free Software Foundation, Inc.,
  19 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20
  21 use CGI;
  22 use strict;
  23 #use warnings; FIXME - Bug 2505
  24 use C4::Auth;
  25 use C4::Output;
  26 use C4::Biblio;
  27 use C4::Items;
  28 use C4::Context;
  29 use C4::Koha; # XXX subfield_is_koha_internal_p
  30 use C4::Branch; # XXX subfield_is_koha_internal_p
  31 use C4::BackgroundJob;
  32 use C4::ClassSource;
  33 use C4::Dates;
  34 use C4::Debug;
  35 use MARC::File::XML;
  36
  37 my $input = new CGI;
  38 my $dbh = C4::Context->dbh;
  39 my $error        = $input->param('error');
  40 my @itemnumbers  = $input->param('itemnumber');
  41 my $op           = $input->param('op');
  42 my $del          = $input->param('del');
  43 my $completedJobID = $input->param('completedJobID');
  44 my $runinbackground = $input->param('runinbackground');
  45
  46
  47 my $template_name;
  48 my $template_flag;
  49 if (!defined $op) {
  50     $template_name = "tools/batchMod.tmpl";
  51     $template_flag = { tools => '*' };
  52 } else {
  53     $template_name = ($del) ? "tools/batchMod-del.tmpl" : "tools/batchMod-edit.tmpl";
  54     $template_flag = ($del) ? { tools => 'items_batchdel' }   : { tools => 'items_batchmod' };
  55 }
  56
  57
  58 my ($template, $loggedinuser, $cookie)
  59     = get_template_and_user({template_name => $template_name,
  60                  query => $input,
  61                  type => "intranet",
  62                  authnotrequired => 0,
  63                  flagsrequired => $template_flag,
  64                  });
  65
  66
  67 my $today_iso = C4::Dates->today('iso');
  68 $template->param(today_iso => $today_iso);
  69 $template->param(del       => $del);
  70
  71 my $itemrecord;
  72 my $nextop="";
  73 my @errors; # store errors found while checking data BEFORE saving item.
  74 my $items_display_hashref;
  75 my $frameworkcode="";
  76 my $tagslib = &GetMarcStructure(1,$frameworkcode);
  77
  78 my $deleted_items = 0;     # Numbers of deleted items
  79 my $not_deleted_items = 0; # Numbers of items that could not be deleted
  80 my @not_deleted;           # List of the itemnumbers that could not be deleted
  81
  82 my %cookies = parse CGI::Cookie($cookie);
  83 my $sessionID = $cookies{'CGISESSID'}->value;
  84
  85
  86 #--- ----------------------------------------------------------------------------
  87 if ($op eq "action") {
  88 #-------------------------------------------------------------------------------
  89     my @tags      = $input->param('tag');
  90     my @subfields = $input->param('subfield');
  91     my @values    = $input->param('field_value');
  92     # build indicator hash.
  93     my @ind_tag   = $input->param('ind_tag');
  94     my @indicator = $input->param('indicator');
  95
  96     # Is there something to modify ?
  97     # TODO : We shall use this var to warn the user in case no modification was done to the items
  98     my $something_to_modify = scalar(grep {!/^$/} @values);
  99
 100     # Once the job is done
 101     if ($completedJobID) {
 102         # If we have a reasonable amount of items, we display them
 103         if (scalar(@itemnumbers) <= 1000) {
 104             $items_display_hashref=BuildItemsData(@itemnumbers);
 105         } else {
 106             # Else, we only display the barcode
 107             my @simple_items_display = map {{ itemnumber => $_, barcode => (GetBarcodeFromItemnumber($_) or ""), biblionumber => (GetBiblionumberFromItemnumber($_) or "") }} @itemnumbers;
 108             $template->param("simple_items_display" => \@simple_items_display);
 109         }
 110
 111         # Setting the job as done
 112         my $job = C4::BackgroundJob->fetch($sessionID, $completedJobID);
 113
 114         # Calling the template
 115         add_saved_job_results_to_template($template, $completedJobID);
 116
 117     # While the job is getting done
 118     } else {
 119
 120         # Job size is the number of items we have to process
 121         my $job_size = scalar(@itemnumbers);
 122         my $job = undef;
 123         my $callback = sub {};
 124
 125         # If we asked for background processing
 126         if ($runinbackground) {
 127             $job = put_in_background($job_size);
 128             $callback = progress_callback($job, $dbh);
 129         }
 130
 131         # For each item
 132         my $i = 1;
 133         foreach my $itemnumber(@itemnumbers){
 134
 135                 $job->progress($i) if $runinbackground;
 136                 my $itemdata=GetItem($itemnumber);
 137                 if ($input->param("del")){
 138                         my $return = DelItemCheck(C4::Context->dbh, $itemdata->{'biblionumber'}, $itemdata->{'itemnumber'});
 139                         if ($return == 1) {
 140                             $deleted_items++;
 141                         } else {
 142                             $not_deleted_items++;
 143                             push @not_deleted, { biblionumber => $itemdata->{'biblionumber'}, itemnumber => $itemdata->{'itemnumber'}, barcode => $itemdata->{'barcode'}, title => $itemdata->{'title'}, $return => 1 };
 144                         }
 145                 } else {
 146                     if ($something_to_modify) {
 147                         my $xml = TransformHtmlToXml(\@tags,\@subfields,\@values,\@indicator,\@ind_tag, 'ITEM');
 148                         my $marcitem = MARC::Record::new_from_xml($xml, 'UTF-8');
 149                         my $localitem = TransformMarcToKoha( $dbh, $marcitem, "", 'items' );
 150                         my $localmarcitem=Item2Marc($itemdata);
 151                         UpdateMarcWith($marcitem,$localmarcitem);
 152                         eval{my ($oldbiblionumber,$oldbibnum,$oldbibitemnum) = ModItemFromMarc($localmarcitem,$itemdata->{biblionumber},$itemnumber)};
 153                     }
 154                 }
 155                 $i++;
 156         }
 157     }
 158 }
 159 #
 160 #-------------------------------------------------------------------------------
 161 # build screen with existing items. and "new" one
 162 #-------------------------------------------------------------------------------
 163
 164 if ($op eq "show"){
 165     my $filefh = $input->upload('uploadfile');
 166     my $filecontent = $input->param('filecontent');
 167     my @notfoundbarcodes;
 168
 169     my @contentlist;
 170     if ($filefh){
 171         while (my $content=<$filefh>){
 172             chomp $content;
 173             push @contentlist, $content if $content;
 174         }
 175
 176         if ($filecontent eq 'barcode_file') {
 177             foreach my $barcode (@contentlist) {
 178
 179                 my $itemnumber = GetItemnumberFromBarcode($barcode);
 180                 if ($itemnumber) {
 181                     push @itemnumbers,$itemnumber;
 182                 } else {
 183                     push @notfoundbarcodes, $barcode;
 184                 }
 185             }
 186         }
 187         elsif ( $filecontent eq 'itemid_file') {
 188             @itemnumbers = @contentlist;
 189         }
 190     } else {
 191         if ( my $list=$input->param('barcodelist')){
 192             push my @barcodelist, split(/\s\n/, $list);
 193
 194             foreach my $barcode (@barcodelist) {
 195
 196                 my $itemnumber = GetItemnumberFromBarcode($barcode);
 197                 if ($itemnumber) {
 198                     push @itemnumbers,$itemnumber;
 199                 } else {
 200                     push @notfoundbarcodes, $barcode;
 201                 }
 202             }
 203
 204         }
 205     }
 206     # Only display the items if there are no more than 1000
 207     if (scalar(@itemnumbers) <= 1000) {
 208         $items_display_hashref=BuildItemsData(@itemnumbers);
 209     } else {
 210         $template->param("too_many_items" => scalar(@itemnumbers));
 211         # Even if we do not display the items, we need the itemnumbers
 212         my @itemnumbers_hashref = map {{itemnumber => $_}} @itemnumbers;
 213         $template->param("itemnumbers_hashref" => \@itemnumbers_hashref);
 214     }
 215 # now, build the item form for entering a new item
 216 my @loop_data =();
 217 my $i=0;
 218 my $authorised_values_sth = $dbh->prepare("SELECT authorised_value,lib FROM authorised_values WHERE category=? ORDER BY lib");
 219
 220 my $branches = GetBranchesLoop();  # build once ahead of time, instead of multiple times later.
 221
 222 # Adding a default choice, in case the user does not want to modify the branch
 223 my $nochange_branch = { branchname => '', value => '', selected => 1 };
 224 unshift (@$branches, $nochange_branch);
 225
 226 my $pref_itemcallnumber = C4::Context->preference('itemcallnumber');
 227
 228
 229 foreach my $tag (sort keys %{$tagslib}) {
 230     # loop through each subfield
 231     foreach my $subfield (sort keys %{$tagslib->{$tag}}) {
 232         next if subfield_is_koha_internal_p($subfield);
 233         next if ($tagslib->{$tag}->{$subfield}->{'tab'} ne "10");
 234         # barcode and stocknumber are not meant to be batch-modified
 235         next if $tagslib->{$tag}->{$subfield}->{'kohafield'} eq 'items.barcode';
 236         next if $tagslib->{$tag}->{$subfield}->{'kohafield'} eq 'items.stocknumber';
 237         my %subfield_data;
 238
 239         my $index_subfield = int(rand(1000000));
 240         if ($subfield eq '@'){
 241             $subfield_data{id} = "tag_".$tag."_subfield_00_".$index_subfield;
 242         } else {
 243             $subfield_data{id} = "tag_".$tag."_subfield_".$subfield."_".$index_subfield;
 244         }
 245         $subfield_data{tag}        = $tag;
 246         $subfield_data{subfield}   = $subfield;
 247         $subfield_data{random}     = int(rand(1000000));    # why do we need 2 different randoms?
 248     #   $subfield_data{marc_lib}   = $tagslib->{$tag}->{$subfield}->{lib};
 249         $subfield_data{marc_lib}   ="<span id=\"error$i\" title=\"".$tagslib->{$tag}->{$subfield}->{lib}."\">".$tagslib->{$tag}->{$subfield}->{lib}."</span>";
 250         $subfield_data{mandatory}  = $tagslib->{$tag}->{$subfield}->{mandatory};
 251         $subfield_data{repeatable} = $tagslib->{$tag}->{$subfield}->{repeatable};
 252         my ($x,$value);
 253         $value =~ s/"/&quot;/g;
 254         unless ($value) {
 255             $value = $tagslib->{$tag}->{$subfield}->{defaultvalue};
 256             # get today date & replace YYYY, MM, DD if provided in the default value
 257             my ( $year, $month, $day ) = split ',', $today_iso;     # FIXME: iso dates don't have commas!
 258             $value =~ s/YYYY/$year/g;
 259             $value =~ s/MM/$month/g;
 260             $value =~ s/DD/$day/g;
 261         }
 262         $subfield_data{visibility} = "display:none;" if (($tagslib->{$tag}->{$subfield}->{hidden} > 4) || ($tagslib->{$tag}->{$subfield}->{hidden} < -4));
 263         # testing branch value if IndependantBranches.
 264
 265         my $attributes_no_value = qq(tabindex="1" id="$subfield_data{id}" name="field_value" class="input_marceditor" size="67" maxlength="255" );
 266         my $attributes          = qq($attributes_no_value value="$value" );
 267
 268         if ( $tagslib->{$tag}->{$subfield}->{authorised_value} ) {
 269         my @authorised_values;
 270         my %authorised_lib;
 271         # builds list, depending on authorised value...
 272
 273         if ( $tagslib->{$tag}->{$subfield}->{authorised_value} eq "branches" ) {
 274             foreach my $thisbranch (@$branches) {
 275                 push @authorised_values, $thisbranch->{value};
 276                 $authorised_lib{$thisbranch->{value}} = $thisbranch->{branchname};
 277             }
 278         $value = "";
 279         }
 280         elsif ( $tagslib->{$tag}->{$subfield}->{authorised_value} eq "itemtypes" ) {
 281             push @authorised_values, "";
 282             my $sth = $dbh->prepare("select itemtype,description from itemtypes order by description");
 283             $sth->execute;
 284             while ( my ( $itemtype, $description ) = $sth->fetchrow_array ) {
 285                 push @authorised_values, $itemtype;
 286                 $authorised_lib{$itemtype} = $description;
 287             }
 288         $value = "";
 289
 290           #---- class_sources
 291       }
 292       elsif ( $tagslib->{$tag}->{$subfield}->{authorised_value} eq "cn_source" ) {
 293           push @authorised_values, "" unless ( $tagslib->{$tag}->{$subfield}->{mandatory} );
 294
 295           my $class_sources = GetClassSources();
 296           my $default_source = C4::Context->preference("DefaultClassificationSource");
 297
 298           foreach my $class_source (sort keys %$class_sources) {
 299               next unless $class_sources->{$class_source}->{'used'} or
 300                           ($value and $class_source eq $value)      or
 301                           ($class_source eq $default_source);
 302               push @authorised_values, $class_source;
 303               $authorised_lib{$class_source} = $class_sources->{$class_source}->{'description'};
 304           }
 305                   $value = '';
 306
 307           #---- "true" authorised value
 308       }
 309       else {
 310           push @authorised_values, "" unless ( $tagslib->{$tag}->{$subfield}->{mandatory} );
 311           $authorised_values_sth->execute( $tagslib->{$tag}->{$subfield}->{authorised_value} );
 312           while ( my ( $value, $lib ) = $authorised_values_sth->fetchrow_array ) {
 313               push @authorised_values, $value;
 314               $authorised_lib{$value} = $lib;
 315           }
 316       }
 317       $subfield_data{marc_value} =CGI::scrolling_list(      # FIXME: factor out scrolling_list
 318           -name     => "field_value",
 319           -values   => \@authorised_values,
 320           -default  => $value,
 321           -labels   => \%authorised_lib,
 322           -override => 1,
 323           -size     => 1,
 324           -multiple => 0,
 325           -tabindex => 1,
 326           -id       => "tag_".$tag."_subfield_".$subfield."_".$index_subfield,
 327           -class    => "input_marceditor",
 328       );
 329     # it's a thesaurus / authority field
 330     }
 331     elsif ( $tagslib->{$tag}->{$subfield}->{authtypecode} ) {
 332         $subfield_data{marc_value} = "<input type=\"text\" $attributes />
 333             <a href=\"#\" class=\"buttonDot\"
 334                 onclick=\"Dopop('/cgi-bin/koha/authorities/auth_finder.pl?authtypecode=".$tagslib->{$tag}->{$subfield}->{authtypecode}."&index=$subfield_data{id}','$subfield_data{id}'); return false;\" title=\"Tag Editor\">...</a>
 335     ";
 336     # it's a plugin field
 337     }
 338     elsif ( $tagslib->{$tag}->{$subfield}->{value_builder} ) {
 339         # opening plugin
 340         my $plugin = C4::Context->intranetdir . "/cataloguing/value_builder/" . $tagslib->{$tag}->{$subfield}->{'value_builder'};
 341         if (do $plugin) {
 342                         my $temp;
 343             my $extended_param = plugin_parameters( $dbh, $temp, $tagslib, $subfield_data{id}, \@loop_data );
 344             my ( $function_name, $javascript ) = plugin_javascript( $dbh, $temp, $tagslib, $subfield_data{id}, \@loop_data );
 345             $subfield_data{marc_value} = qq[<input $attributes
 346                 onfocus="Focus$function_name($subfield_data{random}, '$subfield_data{id}');"
 347                  onblur=" Blur$function_name($subfield_data{random}, '$subfield_data{id}');" />
 348                 <a href="#" class="buttonDot" onclick="Clic$function_name('$subfield_data{id}'); return false;" title="Tag Editor">...</a>
 349                 $javascript];
 350         } else {
 351             warn "Plugin Failed: $plugin";
 352             $subfield_data{marc_value} = "<input $attributes />"; # supply default input form
 353         }
 354     }
 355     elsif ( $tag eq '' ) {       # it's an hidden field
 356         $subfield_data{marc_value} = qq(<input type="hidden" $attributes />);
 357     }
 358     elsif ( $tagslib->{$tag}->{$subfield}->{'hidden'} ) {   # FIXME: shouldn't input type be "hidden" ?
 359         $subfield_data{marc_value} = qq(<input type="text" $attributes />);
 360     }
 361     elsif ( length($value) > 100
 362             or (C4::Context->preference("marcflavour") eq "UNIMARC" and
 363                   300 <= $tag && $tag < 400 && $subfield eq 'a' )
 364             or (C4::Context->preference("marcflavour") eq "MARC21"  and
 365                   500 <= $tag && $tag < 600                     )
 366           ) {
 367         # oversize field (textarea)
 368         $subfield_data{marc_value} = "<textarea $attributes_no_value>$value</textarea>\n";
 369     } else {
 370         # it's a standard field
 371          $subfield_data{marc_value} = "<input $attributes />";
 372     }
 373 #   $subfield_data{marc_value}="<input type=\"text\" name=\"field_value\">";
 374     push (@loop_data, \%subfield_data);
 375     $i++
 376   }
 377 } # -- End foreach tag
 378
 379
 380     # what's the next op ? it's what we are not in : an add if we're editing, otherwise, and edit.
 381     $template->param(item => \@loop_data);
 382     if (@notfoundbarcodes) {
 383         my @notfoundbarcodesloop = map{{barcode=>$_}}@notfoundbarcodes;
 384         $template->param(notfoundbarcodes => \@notfoundbarcodesloop);
 385     }
 386     $nextop="action"
 387 } # -- End action="show"
 388
 389 $template->param(%$items_display_hashref) if $items_display_hashref;
 390 $template->param(
 391     op      => $nextop,
 392     $op => 1,
 393 );
 394
 395 if ($op eq "action") {
 396
 397     #my @not_deleted_loop = map{{itemnumber=>$_}}@not_deleted;
 398
 399     $template->param(
 400         not_deleted_items => $not_deleted_items,
 401         deleted_items => $deleted_items,
 402         not_deleted_loop => \@not_deleted
 403     );
 404 }
 405
 406 foreach my $error (@errors) {
 407     $template->param($error => 1);
 408 }
 409 output_html_with_http_headers $input, $cookie, $template->output;
 410 exit;
 411
 412
 413 # ---------------- Functions
 414
 415 sub BuildItemsData{
 416         my @itemnumbers=@_;
 417                 # now, build existiing item list
 418                 my %witness; #---- stores the list of subfields used at least once, with the "meaning" of the code
 419                 my @big_array;
 420                 #---- finds where items.itemnumber is stored
 421                 my (  $itemtagfield,   $itemtagsubfield) = &GetMarcFromKohaField("items.itemnumber", "");
 422                 my ($branchtagfield, $branchtagsubfield) = &GetMarcFromKohaField("items.homebranch", "");
 423                 foreach my $itemnumber (@itemnumbers){
 424                         my $itemdata=GetItem($itemnumber);
 425                         my $itemmarc=Item2Marc($itemdata);
 426                         my %this_row;
 427                         foreach my $field (grep {$_->tag() eq $itemtagfield} $itemmarc->fields()) {
 428                                 # loop through each subfield
 429                                 if (my $itembranchcode=$field->subfield($branchtagsubfield) && C4::Context->preference("IndependantBranches")) {
 430                                                 #verifying rights
 431                                                 my $userenv = C4::Context->userenv();
 432                                                 unless (($userenv->{'flags'} == 1) or (($userenv->{'branch'} eq $itembranchcode))){
 433                                                                 $this_row{'nomod'}=1;
 434                                                 }
 435                                 }
 436                                 my $tag=$field->tag();
 437                                 foreach my $subfield ($field->subfields) {
 438                                         my ($subfcode,$subfvalue)=@$subfield;
 439                                         next if ($tagslib->{$tag}->{$subfcode}->{tab} ne 10
 440                                                         && $tag        ne $itemtagfield
 441                                                         && $subfcode   ne $itemtagsubfield);
 442
 443                                         $witness{$subfcode} = $tagslib->{$tag}->{$subfcode}->{lib} if ($tagslib->{$tag}->{$subfcode}->{tab}  eq 10);
 444                                         if ($tagslib->{$tag}->{$subfcode}->{tab}  eq 10) {
 445                                                 $this_row{$subfcode}=GetAuthorisedValueDesc( $tag,
 446                                                                         $subfcode, $subfvalue, '', $tagslib)
 447                                                                         || $subfvalue;
 448                                         }
 449
 450                                         $this_row{itemnumber} = $subfvalue if ($tag eq $itemtagfield && $subfcode eq $itemtagsubfield);
 451                                 }
 452                         }
 453
 454             # grab title, author, and ISBN to identify bib that the item
 455             # belongs to in the display
 456                         my $biblio=GetBiblioData($$itemdata{biblionumber});
 457             $this_row{bibinfo} = join("\n", @$biblio{qw(title author ISBN)});
 458
 459                         if (%this_row) {
 460                                 push(@big_array, \%this_row);
 461                         }
 462                 }
 463                 @big_array = sort {$a->{0} cmp $b->{0}} @big_array;
 464
 465                 # now, construct template !
 466                 # First, the existing items for display
 467                 my @item_value_loop;
 468                 my @witnesscodessorted=sort keys %witness;
 469                 for my $row ( @big_array ) {
 470                         my %row_data;
 471                         my @item_fields = map +{ field => $_ || '' }, @$row{ @witnesscodessorted };
 472                         $row_data{item_value} = [ @item_fields ];
 473                         $row_data{itemnumber} = $row->{itemnumber};
 474                         #reporting this_row values
 475                         $row_data{'nomod'} = $row->{'nomod'};
 476             $row_data{bibinfo} = $row->{bibinfo};
 477                         push(@item_value_loop,\%row_data);
 478                 }
 479                 my @header_loop=map { { header_value=> $witness{$_}} } @witnesscodessorted;
 480
 481         return { item_loop        => \@item_value_loop, item_header_loop => \@header_loop };
 482 }
 483
 484 #BE WARN : it is not the general case
 485 # This function can be OK in the item marc record special case
 486 # Where subfield is not repeated
 487 # And where we are sure that field should correspond
 488 # And $tag>10
 489 sub UpdateMarcWith {
 490   my ($marcfrom,$marcto)=@_;
 491   #warn "FROM :",$marcfrom->as_formatted;
 492         my (  $itemtag,   $itemtagsubfield) = &GetMarcFromKohaField("items.itemnumber", "");
 493         my $fieldfrom=$marcfrom->field($itemtag);
 494         my @fields_to=$marcto->field($itemtag);
 495     foreach my $subfield ($fieldfrom->subfields()){
 496                 foreach my $field_to_update (@fields_to){
 497                                 $field_to_update->update($$subfield[0]=>$$subfield[1]) if ($$subfield[1]);
 498                 }
 499     }
 500   #warn "TO edited:",$marcto->as_formatted;
 501 }
 502
 503 sub find_value {
 504     my ($tagfield,$insubfield,$record) = @_;
 505     my $result;
 506     my $indicator;
 507     foreach my $field ($record->field($tagfield)) {
 508         my @subfields = $field->subfields();
 509         foreach my $subfield (@subfields) {
 510             if (@$subfield[0] eq $insubfield) {
 511                 $result .= @$subfield[1];
 512                 $indicator = $field->indicator(1).$field->indicator(2);
 513             }
 514         }
 515     }
 516     return($indicator,$result);
 517 }
 518
 519 # ----------------------------
 520 # Background functions
 521
 522
 523 sub add_results_to_template {
 524     my $template = shift;
 525     my $results = shift;
 526     $template->param(map { $_ => $results->{$_} } keys %{ $results });
 527 }
 528
 529 sub add_saved_job_results_to_template {
 530     my $template = shift;
 531     my $completedJobID = shift;
 532     my $job = C4::BackgroundJob->fetch($sessionID, $completedJobID);
 533     my $results = $job->results();
 534     add_results_to_template($template, $results);
 535 }
 536
 537 sub put_in_background {
 538     my $job_size = shift;
 539
 540     my $job = C4::BackgroundJob->new($sessionID, "test", $ENV{'SCRIPT_NAME'}, $job_size);
 541     my $jobID = $job->id();
 542
 543     # fork off
 544     if (my $pid = fork) {
 545         # parent
 546         # return job ID as JSON
 547
 548         # prevent parent exiting from
 549         # destroying the kid's database handle
 550         # FIXME: according to DBI doc, this may not work for Oracle
 551         $dbh->{InactiveDestroy}  = 1;
 552
 553         my $reply = CGI->new("");
 554         print $reply->header(-type => 'text/html');
 555         print "{ jobID: '$jobID' }";
 556         exit 0;
 557     } elsif (defined $pid) {
 558         # child
 559         # close STDOUT to signal to Apache that
 560         # we're now running in the background
 561         close STDOUT;
 562         close STDERR;
 563     } else {
 564         # fork failed, so exit immediately
 565         warn "fork failed while attempting to run $ENV{'SCRIPT_NAME'} as a background job";
 566         exit 0;
 567     }
 568     return $job;
 569 }
 570
 571 sub progress_callback {
 572     my $job = shift;
 573     my $dbh = shift;
 574     return sub {
 575         my $progress = shift;
 576         $job->progress($progress);
 577     }
 578 }
 579
 580