C4/VirtualShelves/Page.pm

   1 package C4::VirtualShelves::Page;
   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
   9 # under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # Koha is distributed in the hope that it will be useful, but
  14 # WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  20
  21 # perldoc at the end of the file, per convention.
  22
  23 use strict;
  24 use warnings;
  25
  26 use CGI qw ( -utf8 );
  27 use Exporter;
  28 use Data::Dumper;
  29
  30 use C4::VirtualShelves qw/:DEFAULT ShelvesMax/;
  31 use C4::Biblio;
  32 use C4::Items;
  33 use C4::Reserves;
  34 use C4::Koha;
  35 use C4::Auth qw/get_session/;
  36 use C4::Members;
  37 use C4::Output;
  38 use C4::Dates qw/format_date/;
  39 use C4::Tags qw(get_tags);
  40 use C4::Csv;
  41 use C4::XSLT;
  42
  43 use Koha::Virtualshelves;
  44
  45 use constant VIRTUALSHELVES_COUNT => 20;
  46
  47 use vars qw($debug @EXPORT @ISA $VERSION);
  48
  49 BEGIN {
  50     $VERSION = 3.07.00.049;
  51     @ISA     = qw(Exporter);
  52     @EXPORT  = qw(&shelfpage);
  53     $debug   = $ENV{DEBUG} || 0;
  54 }
  55
  56 my @messages;
  57 our %pages = (
  58     intranet => { redirect => '/cgi-bin/koha/virtualshelves/shelves.pl', },
  59     opac     => { redirect => '/cgi-bin/koha/opac-shelves.pl', },
  60 );
  61
  62 sub shelfpage {
  63     my ( $type, $query, $template, $loggedinuser, $cookie ) = @_;
  64     ( $pages{$type} ) or $type = 'opac';
  65     $query            or die "No query";
  66     $template         or die "No template";
  67     $template->param(
  68     loggedinuser => $loggedinuser,
  69     OpacAllowPublicListCreation => C4::Context->preference('OpacAllowPublicListCreation'),
  70     );
  71     my $edit;
  72     my $shelves;
  73     my @paramsloop;
  74     my $totitems;
  75     my $shelfoff    = ( $query->param('shelfoff') ? $query->param('shelfoff') : 1 );
  76     $template->{VARS}->{'shelfoff'} = $shelfoff;
  77     my $itemoff     = ( $query->param('itemoff')  ? $query->param('itemoff')  : 1 );
  78     my $displaymode = ( $query->param('display')  ? $query->param('display')  : 'publicshelves' );
  79     my ( $shelflimit, $shelfoffset, $shelveslimit, $shelvesoffset );
  80     my $marcflavour = C4::Context->preference("marcflavour");
  81
  82     unless ( $query->param('print') ) {
  83         $shelflimit = ( $type eq 'opac' ? C4::Context->preference('OPACnumSearchResults') : C4::Context->preference('numSearchResults') );
  84         $shelflimit = $shelflimit || ShelvesMax('MGRPAGE');
  85         $shelflimit = undef if $query->param('rss');
  86         $shelfoffset   = ( $itemoff - 1 ) * $shelflimit;     # Sets the offset to begin retrieving items at
  87         $shelveslimit  = $shelflimit;                        # Limits number of shelves returned for a given query (row_count)
  88         $shelvesoffset = ( $shelfoff - 1 ) * $shelflimit;    # Sets the offset to begin retrieving shelves at (offset)
  89     }
  90
  91     # getting the Shelves list
  92     my $category = ( ( $displaymode eq 'privateshelves' ) ? 1 : 2 );
  93     my $shelflist = GetShelves( $category, $shelveslimit, $shelvesoffset, $loggedinuser );
  94     my $totshelves = C4::VirtualShelves::GetShelfCount( $loggedinuser, $category );
  95
  96     my $op = $query->param('op');
  97
  98     # the format of this is unindented for ease of diff comparison to the old script
  99     # Note: do not mistake the assignment statements below for comparisons!
 100     if ( $query->param('modifyshelfcontents') ) {
 101         my ( $shelfnumber, $barcode, $item, $biblio );
 102         if ( $shelfnumber = $query->param('viewshelf') ) {
 103             #add to shelf
 104             if($barcode = $query->param('addbarcode') ) {
 105                 if(ShelfPossibleAction( $loggedinuser, $shelfnumber, 'add')) {
 106                     $item = GetItem( 0, $barcode);
 107                     if (defined $item && $item->{'itemnumber'}) {
 108                         $biblio = GetBiblioFromItemNumber( $item->{'itemnumber'} );
 109                         AddToShelf( $biblio->{'biblionumber'}, $shelfnumber, $loggedinuser)
 110                           or push @paramsloop, { duplicatebiblio => $barcode };
 111                     }
 112                     else {
 113                         push @paramsloop, { failgetitem => $barcode };
 114                     }
 115                 }
 116                 else {
 117                     push @paramsloop, { nopermission => $shelfnumber };
 118                 }
 119             }
 120             elsif(grep { /REM-(\d+)/ } $query->param) {
 121             #remove item(s) from shelf
 122                 if(ShelfPossibleAction($loggedinuser, $shelfnumber, 'delete')) {
 123                 #This is just a general okay; DelFromShelf checks further
 124                     my @bib;
 125                     foreach($query->param) {
 126                         /REM-(\d+)/ or next;
 127                         push @bib, $1; #$1 is biblionumber
 128                     }
 129                     my $t= DelFromShelf(\@bib, $shelfnumber, $loggedinuser);
 130                     if($t==0) {
 131                         push @paramsloop, {nothingdeleted => $shelfnumber};
 132                     }
 133                     elsif($t<@bib) {
 134                         push @paramsloop, {somedeleted => $shelfnumber};
 135                     }
 136                 }
 137                 else {
 138                     push @paramsloop, { nopermission => $shelfnumber };
 139                 }
 140             }
 141         }
 142         else {
 143             push @paramsloop, { noshelfnumber => 1 };
 144         }
 145     }
 146
 147     my $showadd = 1;
 148
 149     # set the default tab, etc. (for OPAC)
 150     my $shelf_type = ( $query->param('display') ? $query->param('display') : 'publicshelves' );
 151     if ( defined $shelf_type ) {
 152         if ( $shelf_type eq 'privateshelves' ) {
 153             $template->param( showprivateshelves => 1 );
 154         } elsif ( $shelf_type eq 'publicshelves' ) {
 155             $template->param( showpublicshelves => 1 );
 156             $showadd = 0;
 157         } else {
 158             $debug and warn "Invalid 'display' param ($shelf_type)";
 159         }
 160     } elsif ( $loggedinuser == -1 ) {
 161         $template->param( showpublicshelves => 1 );
 162     } else {
 163         $template->param( showprivateshelves => 1 );
 164     }
 165
 166     my ( $okmanage, $okview );
 167     my $shelfnumber = $query->param('shelfnumber') || $query->param('viewshelf');
 168     if ($shelfnumber) {
 169         $okmanage = ShelfPossibleAction( $loggedinuser, $shelfnumber, 'manage' );
 170         $okview   = ShelfPossibleAction( $loggedinuser, $shelfnumber, 'view' );
 171     }
 172
 173     my $delflag = 0;
 174
 175   SWITCH: {
 176         if ($op) {
 177         #Saving modified shelf
 178             if ( $op eq 'modifsave' ) {
 179                 unless ($okmanage) {
 180                         push @paramsloop, { nopermission => $shelfnumber };
 181                         last SWITCH;
 182                 }
 183                 my $shelf = {
 184                     shelfname          => $query->param('shelfname'),
 185                     sortfield          => $query->param('sortfield'),
 186                     allow_add          => $query->param('allow_add'),
 187                     allow_delete_own   => $query->param('allow_delete_own'),
 188                     allow_delete_other => $query->param('allow_delete_other'),
 189                 };
 190                 if($query->param('category')) { #optional
 191                     $shelf->{category}= $query->param('category');
 192                 }
 193                 unless(ModShelf($shelfnumber, $shelf )) {
 194                   push @paramsloop, {modifyfailure => $shelf->{shelfname}};
 195                   last SWITCH;
 196                 }
 197
 198                 if($displaymode eq "viewshelf"){
 199                     print $query->redirect( $pages{$type}->{redirect} . "?viewshelf=$shelfnumber" );
 200                 } elsif($displaymode eq "publicshelves"){
 201                     print $query->redirect( $pages{$type}->{redirect} );
 202                 } else {
 203                     print $query->redirect( $pages{$type}->{redirect} . "?display=privateshelves" );
 204                 }
 205                 exit;
 206             }
 207         #Editing a shelf
 208         elsif ( $op eq 'modif' ) {
 209                 my $shelf = Koha::Virtualshelves->find( $shelfnumber );
 210                 my $member = GetMember( 'borrowernumber' => $shelf->owner );
 211                 my $ownername = defined($member) ? $member->{firstname} . " " . $member->{surname} : '';
 212                 $edit = 1;
 213                 $template->param(
 214                     edit                => 1,
 215                     display             => $displaymode,
 216                     shelfnumber         => $shelf->shelfnumber,
 217                     shelfname           => $shelf->shelfname,
 218                     owner               => $shelf->owner,
 219                     ownername           => $ownername,
 220                     "category".$shelf->category => 1,
 221                     category            => $shelf->category,
 222                     sortfield           => $shelf->sortfield,
 223                     allow_add           => $shelf->allow_add,
 224                     allow_delete_own    => $shelf->allow_delete_own,
 225                     allow_delete_other  => $shelf->allow_delete_other,
 226                 );
 227             }
 228             last SWITCH;
 229         }
 230
 231         #View a shelf
 232         if ( $shelfnumber = $query->param('viewshelf') ) {
 233             my $shelf = Koha::Virtualshelves->find( $shelfnumber );
 234             $template->param(
 235                 'DisplayMultiPlaceHold' => C4::Context->preference('DisplayMultiPlaceHold'),
 236             );
 237             if (C4::Context->preference('TagsEnabled')) {
 238                 $template->param(TagsEnabled => 1);
 239                     foreach (qw(TagsShowOnList TagsInputOnList)) {
 240                     C4::Context->preference($_) and $template->param($_ => 1);
 241                 }
 242             }
 243             #check that the user can view the shelf
 244             if ( ShelfPossibleAction( $loggedinuser, $shelfnumber, 'view' ) ) {
 245                 my $items;
 246                 my $tag_quantity;
 247                 my $sortfield = ( $shelf->sortfield ? $shelf->sortfield : 'title' );
 248                 $sortfield = $query->param('sort') || $sortfield; ## Passed in sorting overrides default sorting
 249                 my $direction = $query->param('direction') || 'asc';
 250                 $template->param(
 251                     sort      => $sortfield,
 252                     direction => $direction,
 253                 );
 254                 ( $items, $totitems ) = GetShelfContents( $shelfnumber, $shelflimit, $shelfoffset, $sortfield, $direction );
 255
 256                 # get biblionumbers stored in the cart
 257                 # Note that it's not use at the intranet
 258                 my @cart_list;
 259                 my $cart_cookie = ( $type eq 'opac' ? "bib_list" : "intranet_bib_list" );
 260                 if($query->cookie($cart_cookie)){
 261                     my $cart_list = $query->cookie($cart_cookie);
 262                     @cart_list = split(/\//, $cart_list);
 263                 }
 264
 265                 my $borrower = GetMember( 'borrowernumber' => $loggedinuser );
 266
 267                 for my $this_item (@$items) {
 268                     my $biblionumber = $this_item->{'biblionumber'};
 269                     my $record = GetMarcBiblio($biblionumber);
 270                     if (C4::Context->preference("OPACXSLTResultsDisplay") && $type eq 'opac') {
 271                         $this_item->{XSLTBloc} = XSLTParse4Display($biblionumber, $record, "OPACXSLTResultsDisplay");
 272                     } elsif (C4::Context->preference("XSLTResultsDisplay") && $type eq 'intranet') {
 273                         $this_item->{XSLTBloc} = XSLTParse4Display($biblionumber, $record, "XSLTResultsDisplay");
 274                     }
 275
 276                     # the virtualshelfcontents table does not store these columns nor are they retrieved from the items
 277                     # and itemtypes tables, so I'm commenting them out for now to quiet the log -crn
 278                     #$this_item->{imageurl} = $imgdir."/".$itemtypes->{ $this_item->{itemtype}  }->{'imageurl'};
 279                     #$this_item->{'description'} = $itemtypes->{ $this_item->{itemtype} }->{'description'};
 280                     $this_item->{'dateadded'} = format_date( $this_item->{'dateadded'} );
 281                     $this_item->{'imageurl'}  = getitemtypeinfo( $this_item->{'itemtype'}, $type )->{'imageurl'};
 282                     $this_item->{'coins'}     = GetCOinSBiblio( $record );
 283                     $this_item->{'subtitle'} = GetRecordValue('subtitle', $record, GetFrameworkCode($this_item->{'biblionumber'}));
 284                     $this_item->{'normalized_upc'}  = GetNormalizedUPC(       $record,$marcflavour);
 285                     $this_item->{'normalized_ean'}  = GetNormalizedEAN(       $record,$marcflavour);
 286                     $this_item->{'normalized_oclc'} = GetNormalizedOCLCNumber($record,$marcflavour);
 287                     $this_item->{'normalized_isbn'} = GetNormalizedISBN(undef,$record,$marcflavour);
 288                     if(!defined($this_item->{'size'})) { $this_item->{'size'} = "" }; #TT has problems with size
 289                     # Getting items infos for location display
 290                     my @items_infos = &GetItemsLocationInfo( $this_item->{'biblionumber'});
 291                     $this_item->{'itemsissued'} = CountItemsIssued( $this_item->{'biblionumber'} );
 292                     $this_item->{'ITEM_RESULTS'} = \@items_infos;
 293                     if ( grep {$_ eq $biblionumber} @cart_list) {
 294                         $this_item->{'incart'} = 1;
 295                     }
 296
 297                     if (C4::Context->preference('TagsEnabled') and $tag_quantity = C4::Context->preference('TagsShowOnList')) {
 298                         $this_item->{'TagLoop'} = get_tags({
 299                             biblionumber=>$this_item->{'biblionumber'}, approved=>1, 'sort'=>'-weight',
 300                             limit=>$tag_quantity
 301                             });
 302                     }
 303
 304                     $this_item->{'allow_onshelf_holds'} = C4::Reserves::OnShelfHoldsAllowed($this_item, $borrower);
 305                 }
 306                 if($type eq 'intranet'){
 307                     # Build drop-down list for 'Add To:' menu...
 308                     my ($totalref, $pubshelves, $barshelves)=
 309                     C4::VirtualShelves::GetSomeShelfNames($loggedinuser,'COMBO',1);
 310                     $template->param(
 311                         addbarshelves     => $totalref->{bartotal},
 312                         addbarshelvesloop => $barshelves,
 313                         addpubshelves     => $totalref->{pubtotal},
 314                         addpubshelvesloop => $pubshelves,
 315                     );
 316                 }
 317                 push @paramsloop, { display => 'privateshelves' } if $shelf->category == 1;
 318                 $showadd = 1;
 319                 my $i = 0;
 320                 my $manageshelf = ShelfPossibleAction( $loggedinuser, $shelfnumber, 'manage' );
 321                 my $can_delete_shelf = ShelfPossibleAction( $loggedinuser, $shelfnumber, 'delete_shelf' );
 322                 $template->param(
 323                     shelfname           => $shelf->shelfname,
 324                     shelfnumber         => $shelfnumber,
 325                     viewshelf           => $shelfnumber,
 326                     sortfield           => $sortfield,
 327                     manageshelf         => $manageshelf,
 328                     allowremovingitems  => ShelfPossibleAction( $loggedinuser, $shelfnumber, 'delete'),
 329                     allowaddingitem     => ShelfPossibleAction( $loggedinuser, $shelfnumber, 'add'),
 330                     allowdeletingshelf  => $can_delete_shelf,
 331                     "category".$shelf->category => 1,
 332                     category            => $shelf->category,
 333                     itemsloop           => $items,
 334                     showprivateshelves  => $shelf->category==1,
 335                 );
 336             } else {
 337                 push @paramsloop, { nopermission => $shelfnumber };
 338             }
 339             last SWITCH;
 340         }
 341
 342         if ( $query->param('shelves') ) {
 343             my $stay = 1;
 344
 345             #Add a shelf
 346             my $shelfname = $query->param('addshelf');
 347
 348             if ( $shelfname ) {
 349
 350                 # note: a user can always add a new shelf (except database administrator account)
 351                 my $shelf = eval {
 352                     Koha::Virtualshelf->new(
 353                         {
 354                             shelfname          => $shelfname,
 355                             sortfield          => $query->param('sortfield'),
 356                             category           => $query->param('category'),
 357                             allow_add          => $query->param('allow_add'),
 358                             allow_delete_own   => $query->param('allow_delete_own'),
 359                             allow_delete_other => $query->param('allow_delete_other'),
 360                             owner              => $query->param('owner'),
 361                         }
 362                     )->store;
 363                 };
 364                 if ( $@ ) {
 365                     $showadd = 1;
 366                     push @messages, { type => 'error', code => ref($@) };
 367                 } elsif ( not $shelf ) {
 368                     $showadd = 1;
 369                     push @messages, { type => 'error', 'error_on_insert' };
 370                 } else {
 371                     print $query->redirect( $pages{$type}->{redirect} . "?viewshelf=$shelfnumber" );
 372                     exit;
 373                 }
 374
 375                 $template->param(
 376                     shelfname => $shelfname,
 377                 );
 378                 $stay = 1;
 379             }
 380
 381         #Deleting a shelf (asking for confirmation if it has entries)
 382             foreach ( $query->param() ) {
 383                 /(DEL|REMSHR)-(\d+)/ or next;
 384                 $delflag = 1;
 385                 my $number = $2;
 386                 unless ( defined $shelflist->{$number} ) {
 387                     push( @paramsloop, { unrecognized => $number } );
 388                     last;
 389                 }
 390                 #remove a share
 391                 if(/REMSHR/) {
 392                     RemoveShare($loggedinuser, $number);
 393                     delete $shelflist->{$number} if exists $shelflist->{$number};
 394                     $stay=0;
 395                     next;
 396                 }
 397
 398                 my $can_manage = ShelfPossibleAction( $loggedinuser, $number, 'manage' );
 399                 my $can_delete = ShelfPossibleAction( $loggedinuser, $number, 'delete_shelf' );
 400                 unless ( $can_manage or $can_delete ) {
 401                     push( @paramsloop, { nopermission => $shelfnumber } );
 402                     last;
 403                 }
 404                 my $contents;
 405                 ( $contents, $totshelves ) = GetShelfContents( $number, $shelveslimit, $shelvesoffset );
 406                 if ( $totshelves > 0 ) {
 407                     unless ( scalar grep { /^CONFIRM-$number$/ } $query->param() ) {
 408                         if ( defined $shelflist->{$number} ) {
 409                             push( @paramsloop, { need_confirm => $shelflist->{$number}->{shelfname}, count => $totshelves, single => ($totshelves eq 1 ? 1:0) } );
 410                             $shelflist->{$number}->{confirm} = $number;
 411                         }
 412                         $stay = 0;
 413                         next;
 414                     }
 415                 }
 416                 my $name;
 417                 if ( defined $shelflist->{$number} ) {
 418                     $name = $shelflist->{$number}->{'shelfname'};
 419                     delete $shelflist->{$number};
 420                 }
 421                 unless ( DelShelf($number) ) {
 422                     push( @paramsloop, { delete_fail => $name } );
 423                     last;
 424                 }
 425                 push( @paramsloop, { delete_ok => $name } );
 426
 427                 $stay = 0;
 428             }
 429             $showadd = 1;
 430             if ($stay){
 431                 $template->param( shelves => 1 );
 432                 $shelves = 1;
 433             }
 434             last SWITCH;
 435         }
 436     } # end of SWITCH block
 437
 438     (@paramsloop) and $template->param( paramsloop => \@paramsloop );
 439     $showadd      and $template->param( showadd    => 1 );
 440     my @shelvesloop;
 441     my @shelveslooppriv;
 442     my $numberCanManage = 0;
 443
 444     # rebuild shelflist in case a shelf has been added
 445     $shelflist = GetShelves( $category, $shelveslimit, $shelvesoffset, $loggedinuser ) unless $delflag;
 446     $totshelves = C4::VirtualShelves::GetShelfCount( $loggedinuser, $category ) unless $delflag;
 447     foreach my $element ( sort { lc( $shelflist->{$a}->{'shelfname'} ) cmp lc( $shelflist->{$b}->{'shelfname'} ) } keys %$shelflist ) {
 448         my %line;
 449         $shelflist->{$element}->{shelf} = $element;
 450         my $category  = $shelflist->{$element}->{'category'};
 451         my $owner     = $shelflist->{$element}->{'owner'}||0;
 452         my $canmanage = ShelfPossibleAction( $loggedinuser, $element, 'manage' );
 453         my $candelete = ShelfPossibleAction( $loggedinuser, $element, 'delete_shelf' );
 454         $shelflist->{$element}->{"viewcategory$category"} = 1;
 455         $shelflist->{$element}->{manageshelf} = $canmanage;
 456         $shelflist->{$element}->{allowdeletingshelf} = $candelete;
 457         if($canmanage || ($loggedinuser && $owner==$loggedinuser)) {
 458             $shelflist->{$element}->{'mine'} = 1;
 459         }
 460         my $member = GetMember( 'borrowernumber' => $owner );
 461         $shelflist->{$element}->{ownername} = defined($member) ? $member->{firstname} . " " . $member->{surname} : '';
 462         $numberCanManage++ if $canmanage;    # possibly outmoded
 463         if ( $shelflist->{$element}->{'category'} eq '1' ) {
 464             $shelflist->{$element}->{shares} = IsSharedList($element);
 465             push( @shelveslooppriv, $shelflist->{$element} );
 466         } else {
 467             push( @shelvesloop, $shelflist->{$element} );
 468         }
 469     }
 470
 471     my $url = $type eq 'opac' ? "/cgi-bin/koha/opac-shelves.pl" : "/cgi-bin/koha/virtualshelves/shelves.pl";
 472     my %qhash = ();
 473     foreach (qw(display viewshelf sortfield sort direction)) {
 474         $qhash{$_} = $query->param($_) if $query->param($_);
 475     }
 476     ( scalar keys %qhash ) and $url .= '?' . join '&', map { "$_=$qhash{$_}" } keys %qhash;
 477     if ( $shelflimit ) {
 478         if ( $shelfnumber && $totitems ) {
 479             $template->param(  pagination_bar => pagination_bar( $url, ( int( $totitems / $shelflimit ) ) + ( ( $totitems % $shelflimit ) > 0 ? 1 : 0 ), $itemoff, "itemoff" )  );
 480         } elsif ( $totshelves ) {
 481             $template->param(
 482                  pagination_bar => pagination_bar( $url, ( int( $totshelves / $shelveslimit ) ) + ( ( $totshelves % $shelveslimit ) > 0 ? 1 : 0 ), $shelfoff, "shelfoff" )  );
 483         }
 484     }
 485
 486     $template->param(
 487         shelveslooppriv                                                    => \@shelveslooppriv,
 488         shelvesloop                                                        => \@shelvesloop,
 489         shelvesloopall                                                     => [ ( @shelvesloop, @shelveslooppriv ) ],
 490         numberCanManage                                                    => $numberCanManage,
 491         "BiblioDefaultView" . C4::Context->preference("BiblioDefaultView") => 1,
 492         csv_profiles                                                       => GetCsvProfilesLoop('marc')
 493     );
 494
 495     unless( $shelfnumber or $shelves or $edit ) {
 496         # Only used for intranet
 497         $template->param( op => 'list' );
 498     }
 499
 500     if ($shelves or    # note: this part looks duplicative, but is intentional
 501         $edit
 502       ) {
 503         $template->param( seflag => 1 );
 504         #This hack is just another argument for refactoring this script one day
 505         #At this point you are adding or editing a list; if you add, then you add a private list (by default) with permissions as below; if you edit, do not pass these permissions, they must come from the database
 506         $template->param( allow_add => 0, allow_delete_own => 1, allow_delete_other => 0) unless $shelfnumber;
 507     }
 508
 509 #Next call updates the shelves for the Lists button.
 510 #May not always be needed (when nothing changed), but doesn't take much.
 511     my ($total, $pubshelves, $barshelves) = C4::VirtualShelves::GetSomeShelfNames($loggedinuser, 'MASTHEAD');
 512     $template->param(
 513             barshelves     => $total->{bartotal},
 514             barshelvesloop => $barshelves,
 515             pubshelves     => $total->{pubtotal},
 516             pubshelvesloop => $pubshelves,
 517             messages       => \@messages,
 518     );
 519
 520     output_html_with_http_headers $query, $cookie, $template->output;
 521 }
 522
 523 1;
 524 __END__
 525
 526 =head1 NAME
 527
 528 VirtualShelves/Page.pm
 529
 530 =head1 DESCRIPTION
 531
 532 Module used for both OPAC and intranet pages.
 533
 534 =head1 CGI PARAMETERS
 535
 536 =over 4
 537
 538 =item C<modifyshelfcontents>
 539
 540 If this script has to modify the shelf content.
 541
 542 =item C<shelfnumber>
 543
 544 To know on which shelf to work.
 545
 546 =item C<addbarcode>
 547
 548 =item C<op>
 549
 550  Op can be:
 551     * modif: show the template allowing modification of the shelves;
 552     * modifsave: save changes from modif mode.
 553
 554 =item C<viewshelf>
 555
 556 Load template with 'viewshelves param' displaying the shelf's information.
 557
 558 =item C<shelves>
 559
 560 If the param shelves == 1, then add or delete a shelf.
 561
 562 =item C<addshelf>
 563
 564 If the param shelves == 1, then addshelf is the name of the shelf to add.
 565
 566 =back
 567
 568 =cut