C4/Items.pm

   1 package C4::Items;
   2
   3 # Copyright 2007 LibLime, Inc.
   4 # Parts Copyright Biblibre 2010
   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 strict;
  22 #use warnings; FIXME - Bug 2505
  23
  24 use Carp;
  25 use C4::Context;
  26 use C4::Koha;
  27 use C4::Biblio;
  28 use C4::Dates qw/format_date format_date_in_iso/;
  29 use MARC::Record;
  30 use C4::ClassSource;
  31 use C4::Log;
  32 use List::MoreUtils qw/any/;
  33 use YAML qw/Load/;
  34 use DateTime::Format::MySQL;
  35 use Data::Dumper; # used as part of logging item record changes, not just for
  36                   # debugging; so please don't remove this
  37 use Koha::DateUtils qw/dt_from_string/;
  38
  39 use Koha::Database;
  40
  41 use vars qw($VERSION @ISA @EXPORT);
  42
  43 BEGIN {
  44     $VERSION = 3.07.00.049;
  45
  46         require Exporter;
  47     @ISA = qw( Exporter );
  48
  49     # function exports
  50     @EXPORT = qw(
  51         GetItem
  52         AddItemFromMarc
  53         AddItem
  54         AddItemBatchFromMarc
  55         ModItemFromMarc
  56     Item2Marc
  57         ModItem
  58         ModDateLastSeen
  59         ModItemTransfer
  60         DelItem
  61
  62         CheckItemPreSave
  63
  64         GetItemStatus
  65         GetItemLocation
  66         GetLostItems
  67         GetItemsForInventory
  68         GetItemsCount
  69         GetItemInfosOf
  70         GetItemsByBiblioitemnumber
  71         GetItemsInfo
  72         GetItemsLocationInfo
  73         GetHostItemsInfo
  74         GetItemnumbersForBiblio
  75         get_itemnumbers_of
  76         get_hostitemnumbers_of
  77         GetItemnumberFromBarcode
  78         GetBarcodeFromItemnumber
  79         GetHiddenItemnumbers
  80         DelItemCheck
  81     MoveItemFromBiblio
  82     GetLatestAcquisitions
  83
  84         CartToShelf
  85         ShelfToCart
  86
  87         GetAnalyticsCount
  88         GetItemHolds
  89
  90         SearchItemsByField
  91         SearchItems
  92
  93         PrepareItemrecordDisplay
  94
  95     );
  96 }
  97
  98 =head1 NAME
  99
 100 C4::Items - item management functions
 101
 102 =head1 DESCRIPTION
 103
 104 This module contains an API for manipulating item
 105 records in Koha, and is used by cataloguing, circulation,
 106 acquisitions, and serials management.
 107
 108 A Koha item record is stored in two places: the
 109 items table and embedded in a MARC tag in the XML
 110 version of the associated bib record in C<biblioitems.marcxml>.
 111 This is done to allow the item information to be readily
 112 indexed (e.g., by Zebra), but means that each item
 113 modification transaction must keep the items table
 114 and the MARC XML in sync at all times.
 115
 116 Consequently, all code that creates, modifies, or deletes
 117 item records B<must> use an appropriate function from
 118 C<C4::Items>.  If no existing function is suitable, it is
 119 better to add one to C<C4::Items> than to use add
 120 one-off SQL statements to add or modify items.
 121
 122 The items table will be considered authoritative.  In other
 123 words, if there is ever a discrepancy between the items
 124 table and the MARC XML, the items table should be considered
 125 accurate.
 126
 127 =head1 HISTORICAL NOTE
 128
 129 Most of the functions in C<C4::Items> were originally in
 130 the C<C4::Biblio> module.
 131
 132 =head1 CORE EXPORTED FUNCTIONS
 133
 134 The following functions are meant for use by users
 135 of C<C4::Items>
 136
 137 =cut
 138
 139 =head2 GetItem
 140
 141   $item = GetItem($itemnumber,$barcode,$serial);
 142
 143 Return item information, for a given itemnumber or barcode.
 144 The return value is a hashref mapping item column
 145 names to values.  If C<$serial> is true, include serial publication data.
 146
 147 =cut
 148
 149 sub GetItem {
 150     my ($itemnumber,$barcode, $serial) = @_;
 151     my $dbh = C4::Context->dbh;
 152         my $data;
 153
 154     if ($itemnumber) {
 155         my $sth = $dbh->prepare("
 156             SELECT * FROM items
 157             WHERE itemnumber = ?");
 158         $sth->execute($itemnumber);
 159         $data = $sth->fetchrow_hashref;
 160     } else {
 161         my $sth = $dbh->prepare("
 162             SELECT * FROM items
 163             WHERE barcode = ?"
 164             );
 165         $sth->execute($barcode);
 166         $data = $sth->fetchrow_hashref;
 167     }
 168
 169     return unless ( $data );
 170
 171     if ( $serial) {
 172     my $ssth = $dbh->prepare("SELECT serialseq,publisheddate from serialitems left join serial on serialitems.serialid=serial.serialid where serialitems.itemnumber=?");
 173         $ssth->execute($data->{'itemnumber'}) ;
 174         ($data->{'serialseq'} , $data->{'publisheddate'}) = $ssth->fetchrow_array();
 175     }
 176         #if we don't have an items.itype, use biblioitems.itemtype.
 177         if( ! $data->{'itype'} ) {
 178                 my $sth = $dbh->prepare("SELECT itemtype FROM biblioitems  WHERE biblionumber = ?");
 179                 $sth->execute($data->{'biblionumber'});
 180                 ($data->{'itype'}) = $sth->fetchrow_array;
 181         }
 182     return $data;
 183 }    # sub GetItem
 184
 185 =head2 CartToShelf
 186
 187   CartToShelf($itemnumber);
 188
 189 Set the current shelving location of the item record
 190 to its stored permanent shelving location.  This is
 191 primarily used to indicate when an item whose current
 192 location is a special processing ('PROC') or shelving cart
 193 ('CART') location is back in the stacks.
 194
 195 =cut
 196
 197 sub CartToShelf {
 198     my ( $itemnumber ) = @_;
 199
 200     unless ( $itemnumber ) {
 201         croak "FAILED CartToShelf() - no itemnumber supplied";
 202     }
 203
 204     my $item = GetItem($itemnumber);
 205     if ( $item->{location} eq 'CART' ) {
 206         $item->{location} = $item->{permanent_location};
 207         ModItem($item, undef, $itemnumber);
 208     }
 209 }
 210
 211 =head2 ShelfToCart
 212
 213   ShelfToCart($itemnumber);
 214
 215 Set the current shelving location of the item
 216 to shelving cart ('CART').
 217
 218 =cut
 219
 220 sub ShelfToCart {
 221     my ( $itemnumber ) = @_;
 222
 223     unless ( $itemnumber ) {
 224         croak "FAILED ShelfToCart() - no itemnumber supplied";
 225     }
 226
 227     my $item = GetItem($itemnumber);
 228     $item->{'location'} = 'CART';
 229     ModItem($item, undef, $itemnumber);
 230 }
 231
 232 =head2 AddItemFromMarc
 233
 234   my ($biblionumber, $biblioitemnumber, $itemnumber)
 235       = AddItemFromMarc($source_item_marc, $biblionumber);
 236
 237 Given a MARC::Record object containing an embedded item
 238 record and a biblionumber, create a new item record.
 239
 240 =cut
 241
 242 sub AddItemFromMarc {
 243     my ( $source_item_marc, $biblionumber ) = @_;
 244     my $dbh = C4::Context->dbh;
 245
 246     # parse item hash from MARC
 247     my $frameworkcode = GetFrameworkCode( $biblionumber );
 248         my ($itemtag,$itemsubfield)=GetMarcFromKohaField("items.itemnumber",$frameworkcode);
 249
 250         my $localitemmarc=MARC::Record->new;
 251         $localitemmarc->append_fields($source_item_marc->field($itemtag));
 252     my $item = &TransformMarcToKoha( $dbh, $localitemmarc, $frameworkcode ,'items');
 253     my $unlinked_item_subfields = _get_unlinked_item_subfields($localitemmarc, $frameworkcode);
 254     return AddItem($item, $biblionumber, $dbh, $frameworkcode, $unlinked_item_subfields);
 255 }
 256
 257 =head2 AddItem
 258
 259   my ($biblionumber, $biblioitemnumber, $itemnumber)
 260       = AddItem($item, $biblionumber[, $dbh, $frameworkcode, $unlinked_item_subfields]);
 261
 262 Given a hash containing item column names as keys,
 263 create a new Koha item record.
 264
 265 The first two optional parameters (C<$dbh> and C<$frameworkcode>)
 266 do not need to be supplied for general use; they exist
 267 simply to allow them to be picked up from AddItemFromMarc.
 268
 269 The final optional parameter, C<$unlinked_item_subfields>, contains
 270 an arrayref containing subfields present in the original MARC
 271 representation of the item (e.g., from the item editor) that are
 272 not mapped to C<items> columns directly but should instead
 273 be stored in C<items.more_subfields_xml> and included in
 274 the biblio items tag for display and indexing.
 275
 276 =cut
 277
 278 sub AddItem {
 279     my $item = shift;
 280     my $biblionumber = shift;
 281
 282     my $dbh           = @_ ? shift : C4::Context->dbh;
 283     my $frameworkcode = @_ ? shift : GetFrameworkCode( $biblionumber );
 284     my $unlinked_item_subfields;
 285     if (@_) {
 286         $unlinked_item_subfields = shift
 287     };
 288
 289     # needs old biblionumber and biblioitemnumber
 290     $item->{'biblionumber'} = $biblionumber;
 291     my $sth = $dbh->prepare("SELECT biblioitemnumber FROM biblioitems WHERE biblionumber=?");
 292     $sth->execute( $item->{'biblionumber'} );
 293     ($item->{'biblioitemnumber'}) = $sth->fetchrow;
 294
 295     _set_defaults_for_add($item);
 296     _set_derived_columns_for_add($item);
 297     $item->{'more_subfields_xml'} = _get_unlinked_subfields_xml($unlinked_item_subfields);
 298     # FIXME - checks here
 299     unless ( $item->{itype} ) {  # default to biblioitem.itemtype if no itype
 300         my $itype_sth = $dbh->prepare("SELECT itemtype FROM biblioitems WHERE biblionumber = ?");
 301         $itype_sth->execute( $item->{'biblionumber'} );
 302         ( $item->{'itype'} ) = $itype_sth->fetchrow_array;
 303     }
 304
 305         my ( $itemnumber, $error ) = _koha_new_item( $item, $item->{barcode} );
 306     $item->{'itemnumber'} = $itemnumber;
 307
 308     ModZebra( $item->{biblionumber}, "specialUpdate", "biblioserver" );
 309
 310     logaction("CATALOGUING", "ADD", $itemnumber, "item") if C4::Context->preference("CataloguingLog");
 311
 312     return ($item->{biblionumber}, $item->{biblioitemnumber}, $itemnumber);
 313 }
 314
 315 =head2 AddItemBatchFromMarc
 316
 317   ($itemnumber_ref, $error_ref) = AddItemBatchFromMarc($record,
 318              $biblionumber, $biblioitemnumber, $frameworkcode);
 319
 320 Efficiently create item records from a MARC biblio record with
 321 embedded item fields.  This routine is suitable for batch jobs.
 322
 323 This API assumes that the bib record has already been
 324 saved to the C<biblio> and C<biblioitems> tables.  It does
 325 not expect that C<biblioitems.marc> and C<biblioitems.marcxml>
 326 are populated, but it will do so via a call to ModBibiloMarc.
 327
 328 The goal of this API is to have a similar effect to using AddBiblio
 329 and AddItems in succession, but without inefficient repeated
 330 parsing of the MARC XML bib record.
 331
 332 This function returns an arrayref of new itemsnumbers and an arrayref of item
 333 errors encountered during the processing.  Each entry in the errors
 334 list is a hashref containing the following keys:
 335
 336 =over
 337
 338 =item item_sequence
 339
 340 Sequence number of original item tag in the MARC record.
 341
 342 =item item_barcode
 343
 344 Item barcode, provide to assist in the construction of
 345 useful error messages.
 346
 347 =item error_code
 348
 349 Code representing the error condition.  Can be 'duplicate_barcode',
 350 'invalid_homebranch', or 'invalid_holdingbranch'.
 351
 352 =item error_information
 353
 354 Additional information appropriate to the error condition.
 355
 356 =back
 357
 358 =cut
 359
 360 sub AddItemBatchFromMarc {
 361     my ($record, $biblionumber, $biblioitemnumber, $frameworkcode) = @_;
 362     my $error;
 363     my @itemnumbers = ();
 364     my @errors = ();
 365     my $dbh = C4::Context->dbh;
 366
 367     # We modify the record, so lets work on a clone so we don't change the
 368     # original.
 369     $record = $record->clone();
 370     # loop through the item tags and start creating items
 371     my @bad_item_fields = ();
 372     my ($itemtag, $itemsubfield) = &GetMarcFromKohaField("items.itemnumber",'');
 373     my $item_sequence_num = 0;
 374     ITEMFIELD: foreach my $item_field ($record->field($itemtag)) {
 375         $item_sequence_num++;
 376         # we take the item field and stick it into a new
 377         # MARC record -- this is required so far because (FIXME)
 378         # TransformMarcToKoha requires a MARC::Record, not a MARC::Field
 379         # and there is no TransformMarcFieldToKoha
 380         my $temp_item_marc = MARC::Record->new();
 381         $temp_item_marc->append_fields($item_field);
 382
 383         # add biblionumber and biblioitemnumber
 384         my $item = TransformMarcToKoha( $dbh, $temp_item_marc, $frameworkcode, 'items' );
 385         my $unlinked_item_subfields = _get_unlinked_item_subfields($temp_item_marc, $frameworkcode);
 386         $item->{'more_subfields_xml'} = _get_unlinked_subfields_xml($unlinked_item_subfields);
 387         $item->{'biblionumber'} = $biblionumber;
 388         $item->{'biblioitemnumber'} = $biblioitemnumber;
 389
 390         # check for duplicate barcode
 391         my %item_errors = CheckItemPreSave($item);
 392         if (%item_errors) {
 393             push @errors, _repack_item_errors($item_sequence_num, $item, \%item_errors);
 394             push @bad_item_fields, $item_field;
 395             next ITEMFIELD;
 396         }
 397
 398         _set_defaults_for_add($item);
 399         _set_derived_columns_for_add($item);
 400         my ( $itemnumber, $error ) = _koha_new_item( $item, $item->{barcode} );
 401         warn $error if $error;
 402         push @itemnumbers, $itemnumber; # FIXME not checking error
 403         $item->{'itemnumber'} = $itemnumber;
 404
 405         logaction("CATALOGUING", "ADD", $itemnumber, "item") if C4::Context->preference("CataloguingLog");
 406
 407         my $new_item_marc = _marc_from_item_hash($item, $frameworkcode, $unlinked_item_subfields);
 408         $item_field->replace_with($new_item_marc->field($itemtag));
 409     }
 410
 411     # remove any MARC item fields for rejected items
 412     foreach my $item_field (@bad_item_fields) {
 413         $record->delete_field($item_field);
 414     }
 415
 416     # update the MARC biblio
 417  #   $biblionumber = ModBiblioMarc( $record, $biblionumber, $frameworkcode );
 418
 419     return (\@itemnumbers, \@errors);
 420 }
 421
 422 =head2 ModItemFromMarc
 423
 424   ModItemFromMarc($item_marc, $biblionumber, $itemnumber);
 425
 426 This function updates an item record based on a supplied
 427 C<MARC::Record> object containing an embedded item field.
 428 This API is meant for the use of C<additem.pl>; for
 429 other purposes, C<ModItem> should be used.
 430
 431 This function uses the hash %default_values_for_mod_from_marc,
 432 which contains default values for item fields to
 433 apply when modifying an item.  This is needed beccause
 434 if an item field's value is cleared, TransformMarcToKoha
 435 does not include the column in the
 436 hash that's passed to ModItem, which without
 437 use of this hash makes it impossible to clear
 438 an item field's value.  See bug 2466.
 439
 440 Note that only columns that can be directly
 441 changed from the cataloging and serials
 442 item editors are included in this hash.
 443
 444 Returns item record
 445
 446 =cut
 447
 448 our %default_values_for_mod_from_marc;
 449
 450 sub _build_default_values_for_mod_marc {
 451     my ($frameworkcode) = @_;
 452     return $default_values_for_mod_from_marc{$frameworkcode}
 453       if exists $default_values_for_mod_from_marc{$frameworkcode};
 454     my $marc_structure = C4::Biblio::GetMarcStructure( 1, $frameworkcode );
 455     my $default_values = {
 456         barcode                  => undef,
 457         booksellerid             => undef,
 458         ccode                    => undef,
 459         'items.cn_source'        => undef,
 460         coded_location_qualifier => undef,
 461         copynumber               => undef,
 462         damaged                  => 0,
 463         enumchron                => undef,
 464         holdingbranch            => undef,
 465         homebranch               => undef,
 466         itemcallnumber           => undef,
 467         itemlost                 => 0,
 468         itemnotes                => undef,
 469         itype                    => undef,
 470         location                 => undef,
 471         permanent_location       => undef,
 472         materials                => undef,
 473         notforloan               => 0,
 474         # paidfor => undef, # commented, see bug 12817
 475         price                    => undef,
 476         replacementprice         => undef,
 477         replacementpricedate     => undef,
 478         restricted               => undef,
 479         stack                    => undef,
 480         stocknumber              => undef,
 481         uri                      => undef,
 482         withdrawn                => 0,
 483     };
 484     while ( my ( $field, $default_value ) = each %$default_values ) {
 485         my $kohafield = $field;
 486         $kohafield =~ s|^([^\.]+)$|items.$1|;
 487         $default_values_for_mod_from_marc{$frameworkcode}{$field} =
 488           $default_value
 489           if C4::Koha::IsKohaFieldLinked(
 490             { kohafield => $kohafield, frameworkcode => $frameworkcode } );
 491     }
 492     return $default_values_for_mod_from_marc{$frameworkcode};
 493 }
 494
 495 sub ModItemFromMarc {
 496     my $item_marc = shift;
 497     my $biblionumber = shift;
 498     my $itemnumber = shift;
 499
 500     my $dbh           = C4::Context->dbh;
 501     my $frameworkcode = GetFrameworkCode($biblionumber);
 502     my ( $itemtag, $itemsubfield ) = GetMarcFromKohaField( "items.itemnumber", $frameworkcode );
 503
 504     my $localitemmarc = MARC::Record->new;
 505     $localitemmarc->append_fields( $item_marc->field($itemtag) );
 506     my $item = &TransformMarcToKoha( $dbh, $localitemmarc, $frameworkcode, 'items' );
 507     my $default_values = _build_default_values_for_mod_marc();
 508     foreach my $item_field ( keys %$default_values ) {
 509         $item->{$item_field} = $default_values->{$item_field}
 510           unless exists $item->{$item_field};
 511     }
 512     my $unlinked_item_subfields = _get_unlinked_item_subfields( $localitemmarc, $frameworkcode );
 513
 514     ModItem($item, $biblionumber, $itemnumber, $dbh, $frameworkcode, $unlinked_item_subfields);
 515     return $item;
 516 }
 517
 518 =head2 ModItem
 519
 520   ModItem({ column => $newvalue }, $biblionumber, $itemnumber);
 521
 522 Change one or more columns in an item record and update
 523 the MARC representation of the item.
 524
 525 The first argument is a hashref mapping from item column
 526 names to the new values.  The second and third arguments
 527 are the biblionumber and itemnumber, respectively.
 528
 529 The fourth, optional parameter, C<$unlinked_item_subfields>, contains
 530 an arrayref containing subfields present in the original MARC
 531 representation of the item (e.g., from the item editor) that are
 532 not mapped to C<items> columns directly but should instead
 533 be stored in C<items.more_subfields_xml> and included in
 534 the biblio items tag for display and indexing.
 535
 536 If one of the changed columns is used to calculate
 537 the derived value of a column such as C<items.cn_sort>,
 538 this routine will perform the necessary calculation
 539 and set the value.
 540
 541 =cut
 542
 543 sub ModItem {
 544     my $item = shift;
 545     my $biblionumber = shift;
 546     my $itemnumber = shift;
 547
 548     # if $biblionumber is undefined, get it from the current item
 549     unless (defined $biblionumber) {
 550         $biblionumber = _get_single_item_column('biblionumber', $itemnumber);
 551     }
 552
 553     my $dbh           = @_ ? shift : C4::Context->dbh;
 554     my $frameworkcode = @_ ? shift : GetFrameworkCode( $biblionumber );
 555
 556     my $unlinked_item_subfields;
 557     if (@_) {
 558         $unlinked_item_subfields = shift;
 559         $item->{'more_subfields_xml'} = _get_unlinked_subfields_xml($unlinked_item_subfields);
 560     };
 561
 562     $item->{'itemnumber'} = $itemnumber or return;
 563
 564     my @fields = qw( itemlost withdrawn );
 565
 566     # Only call GetItem if we need to set an "on" date field
 567     if ( $item->{itemlost} || $item->{withdrawn} ) {
 568         my $pre_mod_item = GetItem( $item->{'itemnumber'} );
 569         for my $field (@fields) {
 570             if (    defined( $item->{$field} )
 571                 and not $pre_mod_item->{$field}
 572                 and $item->{$field} )
 573             {
 574                 $item->{ $field . '_on' } =
 575                   DateTime::Format::MySQL->format_datetime( dt_from_string() );
 576             }
 577         }
 578     }
 579
 580     # If the field is defined but empty, we are removing and,
 581     # and thus need to clear out the 'on' field as well
 582     for my $field (@fields) {
 583         if ( defined( $item->{$field} ) && !$item->{$field} ) {
 584             $item->{ $field . '_on' } = undef;
 585         }
 586     }
 587
 588
 589     _set_derived_columns_for_mod($item);
 590     _do_column_fixes_for_mod($item);
 591     # FIXME add checks
 592     # duplicate barcode
 593     # attempt to change itemnumber
 594     # attempt to change biblionumber (if we want
 595     # an API to relink an item to a different bib,
 596     # it should be a separate function)
 597
 598     # update items table
 599     _koha_modify_item($item);
 600
 601     # request that bib be reindexed so that searching on current
 602     # item status is possible
 603     ModZebra( $biblionumber, "specialUpdate", "biblioserver" );
 604
 605     logaction("CATALOGUING", "MODIFY", $itemnumber, "item ".Dumper($item)) if C4::Context->preference("CataloguingLog");
 606 }
 607
 608 =head2 ModItemTransfer
 609
 610   ModItemTransfer($itenumber, $frombranch, $tobranch);
 611
 612 Marks an item as being transferred from one branch
 613 to another.
 614
 615 =cut
 616
 617 sub ModItemTransfer {
 618     my ( $itemnumber, $frombranch, $tobranch ) = @_;
 619
 620     my $dbh = C4::Context->dbh;
 621
 622     # Remove the 'shelving cart' location status if it is being used.
 623     CartToShelf( $itemnumber ) if ( C4::Context->preference("ReturnToShelvingCart") );
 624
 625     #new entry in branchtransfers....
 626     my $sth = $dbh->prepare(
 627         "INSERT INTO branchtransfers (itemnumber, frombranch, datesent, tobranch)
 628         VALUES (?, ?, NOW(), ?)");
 629     $sth->execute($itemnumber, $frombranch, $tobranch);
 630
 631     ModItem({ holdingbranch => $tobranch }, undef, $itemnumber);
 632     ModDateLastSeen($itemnumber);
 633     return;
 634 }
 635
 636 =head2 ModDateLastSeen
 637
 638   ModDateLastSeen($itemnum);
 639
 640 Mark item as seen. Is called when an item is issued, returned or manually marked during inventory/stocktaking.
 641 C<$itemnum> is the item number
 642
 643 =cut
 644
 645 sub ModDateLastSeen {
 646     my ($itemnumber) = @_;
 647
 648     my $today = C4::Dates->new();
 649     ModItem({ itemlost => 0, datelastseen => $today->output("iso") }, undef, $itemnumber);
 650 }
 651
 652 =head2 DelItem
 653
 654   DelItem({ itemnumber => $itemnumber, [ biblionumber => $biblionumber ] } );
 655
 656 Exported function (core API) for deleting an item record in Koha.
 657
 658 =cut
 659
 660 sub DelItem {
 661     my ( $params ) = @_;
 662
 663     my $itemnumber   = $params->{itemnumber};
 664     my $biblionumber = $params->{biblionumber};
 665
 666     unless ($biblionumber) {
 667         $biblionumber = C4::Biblio::GetBiblionumberFromItemnumber($itemnumber);
 668     }
 669
 670     # If there is no biblionumber for the given itemnumber, there is nothing to delete
 671     return 0 unless $biblionumber;
 672
 673     # FIXME check the item has no current issues
 674     my $deleted = _koha_delete_item( $itemnumber );
 675
 676     # get the MARC record
 677     my $record = GetMarcBiblio($biblionumber);
 678     ModZebra( $biblionumber, "specialUpdate", "biblioserver" );
 679
 680     #search item field code
 681     logaction("CATALOGUING", "DELETE", $itemnumber, "item") if C4::Context->preference("CataloguingLog");
 682     return $deleted;
 683 }
 684
 685 =head2 CheckItemPreSave
 686
 687     my $item_ref = TransformMarcToKoha($marc, 'items');
 688     # do stuff
 689     my %errors = CheckItemPreSave($item_ref);
 690     if (exists $errors{'duplicate_barcode'}) {
 691         print "item has duplicate barcode: ", $errors{'duplicate_barcode'}, "\n";
 692     } elsif (exists $errors{'invalid_homebranch'}) {
 693         print "item has invalid home branch: ", $errors{'invalid_homebranch'}, "\n";
 694     } elsif (exists $errors{'invalid_holdingbranch'}) {
 695         print "item has invalid holding branch: ", $errors{'invalid_holdingbranch'}, "\n";
 696     } else {
 697         print "item is OK";
 698     }
 699
 700 Given a hashref containing item fields, determine if it can be
 701 inserted or updated in the database.  Specifically, checks for
 702 database integrity issues, and returns a hash containing any
 703 of the following keys, if applicable.
 704
 705 =over 2
 706
 707 =item duplicate_barcode
 708
 709 Barcode, if it duplicates one already found in the database.
 710
 711 =item invalid_homebranch
 712
 713 Home branch, if not defined in branches table.
 714
 715 =item invalid_holdingbranch
 716
 717 Holding branch, if not defined in branches table.
 718
 719 =back
 720
 721 This function does NOT implement any policy-related checks,
 722 e.g., whether current operator is allowed to save an
 723 item that has a given branch code.
 724
 725 =cut
 726
 727 sub CheckItemPreSave {
 728     my $item_ref = shift;
 729     require C4::Branch;
 730
 731     my %errors = ();
 732
 733     # check for duplicate barcode
 734     if (exists $item_ref->{'barcode'} and defined $item_ref->{'barcode'}) {
 735         my $existing_itemnumber = GetItemnumberFromBarcode($item_ref->{'barcode'});
 736         if ($existing_itemnumber) {
 737             if (!exists $item_ref->{'itemnumber'}                       # new item
 738                 or $item_ref->{'itemnumber'} != $existing_itemnumber) { # existing item
 739                 $errors{'duplicate_barcode'} = $item_ref->{'barcode'};
 740             }
 741         }
 742     }
 743
 744     # check for valid home branch
 745     if (exists $item_ref->{'homebranch'} and defined $item_ref->{'homebranch'}) {
 746         my $branch_name = C4::Branch::GetBranchName($item_ref->{'homebranch'});
 747         unless (defined $branch_name) {
 748             # relies on fact that branches.branchname is a non-NULL column,
 749             # so GetBranchName returns undef only if branch does not exist
 750             $errors{'invalid_homebranch'} = $item_ref->{'homebranch'};
 751         }
 752     }
 753
 754     # check for valid holding branch
 755     if (exists $item_ref->{'holdingbranch'} and defined $item_ref->{'holdingbranch'}) {
 756         my $branch_name = C4::Branch::GetBranchName($item_ref->{'holdingbranch'});
 757         unless (defined $branch_name) {
 758             # relies on fact that branches.branchname is a non-NULL column,
 759             # so GetBranchName returns undef only if branch does not exist
 760             $errors{'invalid_holdingbranch'} = $item_ref->{'holdingbranch'};
 761         }
 762     }
 763
 764     return %errors;
 765
 766 }
 767
 768 =head1 EXPORTED SPECIAL ACCESSOR FUNCTIONS
 769
 770 The following functions provide various ways of
 771 getting an item record, a set of item records, or
 772 lists of authorized values for certain item fields.
 773
 774 Some of the functions in this group are candidates
 775 for refactoring -- for example, some of the code
 776 in C<GetItemsByBiblioitemnumber> and C<GetItemsInfo>
 777 has copy-and-paste work.
 778
 779 =cut
 780
 781 =head2 GetItemStatus
 782
 783   $itemstatushash = GetItemStatus($fwkcode);
 784
 785 Returns a list of valid values for the
 786 C<items.notforloan> field.
 787
 788 NOTE: does B<not> return an individual item's
 789 status.
 790
 791 Can be MARC dependant.
 792 fwkcode is optional.
 793 But basically could be can be loan or not
 794 Create a status selector with the following code
 795
 796 =head3 in PERL SCRIPT
 797
 798  my $itemstatushash = getitemstatus;
 799  my @itemstatusloop;
 800  foreach my $thisstatus (keys %$itemstatushash) {
 801      my %row =(value => $thisstatus,
 802                  statusname => $itemstatushash->{$thisstatus}->{'statusname'},
 803              );
 804      push @itemstatusloop, \%row;
 805  }
 806  $template->param(statusloop=>\@itemstatusloop);
 807
 808 =head3 in TEMPLATE
 809
 810 <select name="statusloop" id="statusloop">
 811     <option value="">Default</option>
 812     [% FOREACH statusloo IN statusloop %]
 813         [% IF ( statusloo.selected ) %]
 814             <option value="[% statusloo.value %]" selected="selected">[% statusloo.statusname %]</option>
 815         [% ELSE %]
 816             <option value="[% statusloo.value %]">[% statusloo.statusname %]</option>
 817         [% END %]
 818     [% END %]
 819 </select>
 820
 821 =cut
 822
 823 sub GetItemStatus {
 824
 825     # returns a reference to a hash of references to status...
 826     my ($fwk) = @_;
 827     my %itemstatus;
 828     my $dbh = C4::Context->dbh;
 829     my $sth;
 830     $fwk = '' unless ($fwk);
 831     my ( $tag, $subfield ) =
 832       GetMarcFromKohaField( "items.notforloan", $fwk );
 833     if ( $tag and $subfield ) {
 834         my $sth =
 835           $dbh->prepare(
 836             "SELECT authorised_value
 837             FROM marc_subfield_structure
 838             WHERE tagfield=?
 839                 AND tagsubfield=?
 840                 AND frameworkcode=?
 841             "
 842           );
 843         $sth->execute( $tag, $subfield, $fwk );
 844         if ( my ($authorisedvaluecat) = $sth->fetchrow ) {
 845             my $authvalsth =
 846               $dbh->prepare(
 847                 "SELECT authorised_value,lib
 848                 FROM authorised_values
 849                 WHERE category=?
 850                 ORDER BY lib
 851                 "
 852               );
 853             $authvalsth->execute($authorisedvaluecat);
 854             while ( my ( $authorisedvalue, $lib ) = $authvalsth->fetchrow ) {
 855                 $itemstatus{$authorisedvalue} = $lib;
 856             }
 857             return \%itemstatus;
 858             exit 1;
 859         }
 860         else {
 861
 862             #No authvalue list
 863             # build default
 864         }
 865     }
 866
 867     #No authvalue list
 868     #build default
 869     $itemstatus{"1"} = "Not For Loan";
 870     return \%itemstatus;
 871 }
 872
 873 =head2 GetItemLocation
 874
 875   $itemlochash = GetItemLocation($fwk);
 876
 877 Returns a list of valid values for the
 878 C<items.location> field.
 879
 880 NOTE: does B<not> return an individual item's
 881 location.
 882
 883 where fwk stands for an optional framework code.
 884 Create a location selector with the following code
 885
 886 =head3 in PERL SCRIPT
 887
 888   my $itemlochash = getitemlocation;
 889   my @itemlocloop;
 890   foreach my $thisloc (keys %$itemlochash) {
 891       my $selected = 1 if $thisbranch eq $branch;
 892       my %row =(locval => $thisloc,
 893                   selected => $selected,
 894                   locname => $itemlochash->{$thisloc},
 895                );
 896       push @itemlocloop, \%row;
 897   }
 898   $template->param(itemlocationloop => \@itemlocloop);
 899
 900 =head3 in TEMPLATE
 901
 902   <select name="location">
 903       <option value="">Default</option>
 904   <!-- TMPL_LOOP name="itemlocationloop" -->
 905       <option value="<!-- TMPL_VAR name="locval" -->" <!-- TMPL_IF name="selected" -->selected<!-- /TMPL_IF -->><!-- TMPL_VAR name="locname" --></option>
 906   <!-- /TMPL_LOOP -->
 907   </select>
 908
 909 =cut
 910
 911 sub GetItemLocation {
 912
 913     # returns a reference to a hash of references to location...
 914     my ($fwk) = @_;
 915     my %itemlocation;
 916     my $dbh = C4::Context->dbh;
 917     my $sth;
 918     $fwk = '' unless ($fwk);
 919     my ( $tag, $subfield ) =
 920       GetMarcFromKohaField( "items.location", $fwk );
 921     if ( $tag and $subfield ) {
 922         my $sth =
 923           $dbh->prepare(
 924             "SELECT authorised_value
 925             FROM marc_subfield_structure
 926             WHERE tagfield=?
 927                 AND tagsubfield=?
 928                 AND frameworkcode=?"
 929           );
 930         $sth->execute( $tag, $subfield, $fwk );
 931         if ( my ($authorisedvaluecat) = $sth->fetchrow ) {
 932             my $authvalsth =
 933               $dbh->prepare(
 934                 "SELECT authorised_value,lib
 935                 FROM authorised_values
 936                 WHERE category=?
 937                 ORDER BY lib"
 938               );
 939             $authvalsth->execute($authorisedvaluecat);
 940             while ( my ( $authorisedvalue, $lib ) = $authvalsth->fetchrow ) {
 941                 $itemlocation{$authorisedvalue} = $lib;
 942             }
 943             return \%itemlocation;
 944             exit 1;
 945         }
 946         else {
 947
 948             #No authvalue list
 949             # build default
 950         }
 951     }
 952
 953     #No authvalue list
 954     #build default
 955     $itemlocation{"1"} = "Not For Loan";
 956     return \%itemlocation;
 957 }
 958
 959 =head2 GetLostItems
 960
 961   $items = GetLostItems( $where, $orderby );
 962
 963 This function gets a list of lost items.
 964
 965 =over 2
 966
 967 =item input:
 968
 969 C<$where> is a hashref. it containts a field of the items table as key
 970 and the value to match as value. For example:
 971
 972 { barcode    => 'abc123',
 973   homebranch => 'CPL',    }
 974
 975 C<$orderby> is a field of the items table by which the resultset
 976 should be orderd.
 977
 978 =item return:
 979
 980 C<$items> is a reference to an array full of hashrefs with columns
 981 from the "items" table as keys.
 982
 983 =item usage in the perl script:
 984
 985   my $where = { barcode => '0001548' };
 986   my $items = GetLostItems( $where, "homebranch" );
 987   $template->param( itemsloop => $items );
 988
 989 =back
 990
 991 =cut
 992
 993 sub GetLostItems {
 994     # Getting input args.
 995     my $where   = shift;
 996     my $orderby = shift;
 997     my $dbh     = C4::Context->dbh;
 998
 999     my $query   = "
1000         SELECT title, author, lib, itemlost, authorised_value, barcode, datelastseen, price, replacementprice, homebranch,
1001                itype, itemtype, holdingbranch, location, itemnotes, items.biblionumber as biblionumber
1002         FROM   items
1003             LEFT JOIN biblio ON (items.biblionumber = biblio.biblionumber)
1004             LEFT JOIN biblioitems ON (items.biblionumber = biblioitems.biblionumber)
1005             LEFT JOIN authorised_values ON (items.itemlost = authorised_values.authorised_value)
1006         WHERE
1007                 authorised_values.category = 'LOST'
1008                 AND itemlost IS NOT NULL
1009                 AND itemlost <> 0
1010     ";
1011     my @query_parameters;
1012     foreach my $key (keys %$where) {
1013         $query .= " AND $key LIKE ?";
1014         push @query_parameters, "%$where->{$key}%";
1015     }
1016     my @ordervalues = qw/title author homebranch itype barcode price replacementprice lib datelastseen location/;
1017
1018     if ( defined $orderby && grep($orderby, @ordervalues)) {
1019         $query .= ' ORDER BY '.$orderby;
1020     }
1021
1022     my $sth = $dbh->prepare($query);
1023     $sth->execute( @query_parameters );
1024     my $items = [];
1025     while ( my $row = $sth->fetchrow_hashref ){
1026         push @$items, $row;
1027     }
1028     return $items;
1029 }
1030
1031 =head2 GetItemsForInventory
1032
1033 ($itemlist, $iTotalRecords)  = GetItemsForInventory($minlocation, $maxlocation, $location, $itemtype, $ignoreissued, $datelastseen, $branchcode, $offset, $size, $statushash);
1034
1035 Retrieve a list of title/authors/barcode/callnumber, for biblio inventory.
1036
1037 The sub returns a reference to a list of hashes, each containing
1038 itemnumber, author, title, barcode, item callnumber, and date last
1039 seen. It is ordered by callnumber then title.
1040
1041 The required minlocation & maxlocation parameters are used to specify a range of item callnumbers
1042 the datelastseen can be used to specify that you want to see items not seen since a past date only.
1043 offset & size can be used to retrieve only a part of the whole listing (defaut behaviour)
1044 $statushash requires a hashref that has the authorized values fieldname (intems.notforloan, etc...) as keys, and an arrayref of statuscodes we are searching for as values.
1045
1046 $iTotalRecords is the number of rows that would have been returned without the $offset, $size limit clause
1047
1048 =cut
1049
1050 sub GetItemsForInventory {
1051     my ( $minlocation, $maxlocation,$location, $itemtype, $ignoreissued, $datelastseen, $branchcode, $branch, $offset, $size, $statushash ) = @_;
1052     my $dbh = C4::Context->dbh;
1053     my ( @bind_params, @where_strings );
1054
1055     my $select_columns = q{
1056         SELECT items.itemnumber, barcode, itemcallnumber, title, author, biblio.biblionumber, biblio.frameworkcode, datelastseen, homebranch, location, notforloan, damaged, itemlost, withdrawn, stocknumber
1057     };
1058     my $select_count = q{SELECT COUNT(*)};
1059     my $query = q{
1060         FROM items
1061         LEFT JOIN biblio ON items.biblionumber = biblio.biblionumber
1062         LEFT JOIN biblioitems on items.biblionumber = biblioitems.biblionumber
1063     };
1064     if ($statushash){
1065         for my $authvfield (keys %$statushash){
1066             if ( scalar @{$statushash->{$authvfield}} > 0 ){
1067                 my $joinedvals = join ',', @{$statushash->{$authvfield}};
1068                 push @where_strings, "$authvfield in (" . $joinedvals . ")";
1069             }
1070         }
1071     }
1072
1073     if ($minlocation) {
1074         push @where_strings, 'itemcallnumber >= ?';
1075         push @bind_params, $minlocation;
1076     }
1077
1078     if ($maxlocation) {
1079         push @where_strings, 'itemcallnumber <= ?';
1080         push @bind_params, $maxlocation;
1081     }
1082
1083     if ($datelastseen) {
1084         $datelastseen = format_date_in_iso($datelastseen);
1085         push @where_strings, '(datelastseen < ? OR datelastseen IS NULL)';
1086         push @bind_params, $datelastseen;
1087     }
1088
1089     if ( $location ) {
1090         push @where_strings, 'items.location = ?';
1091         push @bind_params, $location;
1092     }
1093
1094     if ( $branchcode ) {
1095         if($branch eq "homebranch"){
1096         push @where_strings, 'items.homebranch = ?';
1097         }else{
1098             push @where_strings, 'items.holdingbranch = ?';
1099         }
1100         push @bind_params, $branchcode;
1101     }
1102
1103     if ( $itemtype ) {
1104         push @where_strings, 'biblioitems.itemtype = ?';
1105         push @bind_params, $itemtype;
1106     }
1107
1108     if ( $ignoreissued) {
1109         $query .= "LEFT JOIN issues ON items.itemnumber = issues.itemnumber ";
1110         push @where_strings, 'issues.date_due IS NULL';
1111     }
1112
1113     if ( @where_strings ) {
1114         $query .= 'WHERE ';
1115         $query .= join ' AND ', @where_strings;
1116     }
1117     $query .= ' ORDER BY items.cn_sort, itemcallnumber, title';
1118     my $count_query = $select_count . $query;
1119     $query .= " LIMIT $offset, $size" if ($offset and $size);
1120     $query = $select_columns . $query;
1121     my $sth = $dbh->prepare($query);
1122     $sth->execute( @bind_params );
1123
1124     my @results = ();
1125     my $tmpresults = $sth->fetchall_arrayref({});
1126     $sth = $dbh->prepare( $count_query );
1127     $sth->execute( @bind_params );
1128     my ($iTotalRecords) = $sth->fetchrow_array();
1129
1130     foreach my $row (@$tmpresults) {
1131
1132         # Auth values
1133         foreach (keys %$row) {
1134             # If the koha field is mapped to a marc field
1135             my ($f, $sf) = GetMarcFromKohaField("items.$_", $row->{'frameworkcode'});
1136             if ($f and $sf) {
1137                 # We replace the code with it's description
1138                 my $authvals = C4::Koha::GetKohaAuthorisedValuesFromField($f, $sf, $row->{'frameworkcode'});
1139                 $row->{$_} = $authvals->{$row->{$_}} if defined $authvals->{$row->{$_}};
1140             }
1141         }
1142         push @results, $row;
1143     }
1144
1145     return (\@results, $iTotalRecords);
1146 }
1147
1148 =head2 GetItemsCount
1149
1150   $count = &GetItemsCount( $biblionumber);
1151
1152 This function return count of item with $biblionumber
1153
1154 =cut
1155
1156 sub GetItemsCount {
1157     my ( $biblionumber ) = @_;
1158     my $dbh = C4::Context->dbh;
1159     my $query = "SELECT count(*)
1160           FROM  items
1161           WHERE biblionumber=?";
1162     my $sth = $dbh->prepare($query);
1163     $sth->execute($biblionumber);
1164     my $count = $sth->fetchrow;
1165     return ($count);
1166 }
1167
1168 =head2 GetItemInfosOf
1169
1170   GetItemInfosOf(@itemnumbers);
1171
1172 =cut
1173
1174 sub GetItemInfosOf {
1175     my @itemnumbers = @_;
1176
1177     my $itemnumber_values = @itemnumbers ? join( ',', @itemnumbers ) : "''";
1178
1179     my $query = "
1180         SELECT *
1181         FROM items
1182         WHERE itemnumber IN ($itemnumber_values)
1183     ";
1184     return get_infos_of( $query, 'itemnumber' );
1185 }
1186
1187 =head2 GetItemsByBiblioitemnumber
1188
1189   GetItemsByBiblioitemnumber($biblioitemnumber);
1190
1191 Returns an arrayref of hashrefs suitable for use in a TMPL_LOOP
1192 Called by C<C4::XISBN>
1193
1194 =cut
1195
1196 sub GetItemsByBiblioitemnumber {
1197     my ( $bibitem ) = @_;
1198     my $dbh = C4::Context->dbh;
1199     my $sth = $dbh->prepare("SELECT * FROM items WHERE items.biblioitemnumber = ?") || die $dbh->errstr;
1200     # Get all items attached to a biblioitem
1201     my $i = 0;
1202     my @results;
1203     $sth->execute($bibitem) || die $sth->errstr;
1204     while ( my $data = $sth->fetchrow_hashref ) {
1205         # Foreach item, get circulation information
1206         my $sth2 = $dbh->prepare( "SELECT * FROM issues,borrowers
1207                                    WHERE itemnumber = ?
1208                                    AND issues.borrowernumber = borrowers.borrowernumber"
1209         );
1210         $sth2->execute( $data->{'itemnumber'} );
1211         if ( my $data2 = $sth2->fetchrow_hashref ) {
1212             # if item is out, set the due date and who it is out too
1213             $data->{'date_due'}   = $data2->{'date_due'};
1214             $data->{'cardnumber'} = $data2->{'cardnumber'};
1215             $data->{'borrowernumber'}   = $data2->{'borrowernumber'};
1216         }
1217         else {
1218             # set date_due to blank, so in the template we check itemlost, and withdrawn
1219             $data->{'date_due'} = '';
1220         }    # else
1221         # Find the last 3 people who borrowed this item.
1222         my $query2 = "SELECT * FROM old_issues, borrowers WHERE itemnumber = ?
1223                       AND old_issues.borrowernumber = borrowers.borrowernumber
1224                       ORDER BY returndate desc,timestamp desc LIMIT 3";
1225         $sth2 = $dbh->prepare($query2) || die $dbh->errstr;
1226         $sth2->execute( $data->{'itemnumber'} ) || die $sth2->errstr;
1227         my $i2 = 0;
1228         while ( my $data2 = $sth2->fetchrow_hashref ) {
1229             $data->{"timestamp$i2"} = $data2->{'timestamp'};
1230             $data->{"card$i2"}      = $data2->{'cardnumber'};
1231             $data->{"borrower$i2"}  = $data2->{'borrowernumber'};
1232             $i2++;
1233         }
1234         push(@results,$data);
1235     }
1236     return (\@results);
1237 }
1238
1239 =head2 GetItemsInfo
1240
1241   @results = GetItemsInfo($biblionumber);
1242
1243 Returns information about items with the given biblionumber.
1244
1245 C<GetItemsInfo> returns a list of references-to-hash. Each element
1246 contains a number of keys. Most of them are attributes from the
1247 C<biblio>, C<biblioitems>, C<items>, and C<itemtypes> tables in the
1248 Koha database. Other keys include:
1249
1250 =over 2
1251
1252 =item C<$data-E<gt>{branchname}>
1253
1254 The name (not the code) of the branch to which the book belongs.
1255
1256 =item C<$data-E<gt>{datelastseen}>
1257
1258 This is simply C<items.datelastseen>, except that while the date is
1259 stored in YYYY-MM-DD format in the database, here it is converted to
1260 DD/MM/YYYY format. A NULL date is returned as C<//>.
1261
1262 =item C<$data-E<gt>{datedue}>
1263
1264 =item C<$data-E<gt>{class}>
1265
1266 This is the concatenation of C<biblioitems.classification>, the book's
1267 Dewey code, and C<biblioitems.subclass>.
1268
1269 =item C<$data-E<gt>{ocount}>
1270
1271 I think this is the number of copies of the book available.
1272
1273 =item C<$data-E<gt>{order}>
1274
1275 If this is set, it is set to C<One Order>.
1276
1277 =back
1278
1279 =cut
1280
1281 sub GetItemsInfo {
1282     my ( $biblionumber ) = @_;
1283     my $dbh   = C4::Context->dbh;
1284     # note biblioitems.* must be avoided to prevent large marc and marcxml fields from killing performance.
1285     my $query = "
1286     SELECT items.*,
1287            biblio.*,
1288            biblioitems.volume,
1289            biblioitems.number,
1290            biblioitems.itemtype,
1291            biblioitems.isbn,
1292            biblioitems.issn,
1293            biblioitems.publicationyear,
1294            biblioitems.publishercode,
1295            biblioitems.volumedate,
1296            biblioitems.volumedesc,
1297            biblioitems.lccn,
1298            biblioitems.url,
1299            items.notforloan as itemnotforloan,
1300            issues.borrowernumber,
1301            issues.date_due as datedue,
1302            issues.onsite_checkout,
1303            borrowers.cardnumber,
1304            borrowers.surname,
1305            borrowers.firstname,
1306            borrowers.branchcode as bcode,
1307            serial.serialseq,
1308            serial.publisheddate,
1309            itemtypes.description,
1310            itemtypes.notforloan as notforloan_per_itemtype,
1311            holding.branchurl,
1312            holding.branchname,
1313            holding.opac_info as holding_branch_opac_info,
1314            home.opac_info as home_branch_opac_info
1315     ";
1316     $query .= "
1317      FROM items
1318      LEFT JOIN branches AS holding ON items.holdingbranch = holding.branchcode
1319      LEFT JOIN branches AS home ON items.homebranch=home.branchcode
1320      LEFT JOIN biblio      ON      biblio.biblionumber     = items.biblionumber
1321      LEFT JOIN biblioitems ON biblioitems.biblioitemnumber = items.biblioitemnumber
1322      LEFT JOIN issues USING (itemnumber)
1323      LEFT JOIN borrowers USING (borrowernumber)
1324      LEFT JOIN serialitems USING (itemnumber)
1325      LEFT JOIN serial USING (serialid)
1326      LEFT JOIN itemtypes   ON   itemtypes.itemtype         = "
1327      . (C4::Context->preference('item-level_itypes') ? 'items.itype' : 'biblioitems.itemtype');
1328     $query .= " WHERE items.biblionumber = ? ORDER BY home.branchname, items.enumchron, LPAD( items.copynumber, 8, '0' ), items.dateaccessioned DESC" ;
1329     my $sth = $dbh->prepare($query);
1330     $sth->execute($biblionumber);
1331     my $i = 0;
1332     my @results;
1333     my $serial;
1334
1335     my $userenv = C4::Context->userenv;
1336     my $want_not_same_branch = C4::Context->preference("IndependentBranches") && !C4::Context->IsSuperLibrarian();
1337     while ( my $data = $sth->fetchrow_hashref ) {
1338         if ( $data->{borrowernumber} && $want_not_same_branch) {
1339             $data->{'NOTSAMEBRANCH'} = $data->{'bcode'} ne $userenv->{branch};
1340         }
1341
1342         $serial ||= $data->{'serial'};
1343
1344         # get notforloan complete status if applicable
1345         if ( my $code = C4::Koha::GetAuthValCode( 'items.notforloan', $data->{frameworkcode} ) ) {
1346             $data->{notforloanvalue}     = C4::Koha::GetKohaAuthorisedValueLib( $code, $data->{itemnotforloan} );
1347             $data->{notforloanvalueopac} = C4::Koha::GetKohaAuthorisedValueLib( $code, $data->{itemnotforloan}, 1 );
1348         }
1349
1350         # get restricted status and description if applicable
1351         if ( my $code = C4::Koha::GetAuthValCode( 'items.restricted', $data->{frameworkcode} ) ) {
1352             $data->{restrictedopac} = C4::Koha::GetKohaAuthorisedValueLib( $code, $data->{restricted}, 1 );
1353             $data->{restricted}     = C4::Koha::GetKohaAuthorisedValueLib( $code, $data->{restricted} );
1354         }
1355
1356         # my stack procedures
1357         if ( my $code = C4::Koha::GetAuthValCode( 'items.stack', $data->{frameworkcode} ) ) {
1358             $data->{stack}          = C4::Koha::GetKohaAuthorisedValueLib( $code, $data->{stack} );
1359         }
1360
1361         # Find the last 3 people who borrowed this item.
1362         my $sth2 = $dbh->prepare("SELECT * FROM old_issues,borrowers
1363                                     WHERE itemnumber = ?
1364                                     AND old_issues.borrowernumber = borrowers.borrowernumber
1365                                     ORDER BY returndate DESC
1366                                     LIMIT 3");
1367         $sth2->execute($data->{'itemnumber'});
1368         my $ii = 0;
1369         while (my $data2 = $sth2->fetchrow_hashref()) {
1370             $data->{"timestamp$ii"} = $data2->{'timestamp'} if $data2->{'timestamp'};
1371             $data->{"card$ii"}      = $data2->{'cardnumber'} if $data2->{'cardnumber'};
1372             $data->{"borrower$ii"}  = $data2->{'borrowernumber'} if $data2->{'borrowernumber'};
1373             $ii++;
1374         }
1375
1376         $results[$i] = $data;
1377         $i++;
1378     }
1379
1380     return $serial
1381         ? sort { ($b->{'publisheddate'} || $b->{'enumchron'}) cmp ($a->{'publisheddate'} || $a->{'enumchron'}) } @results
1382         : @results;
1383 }
1384
1385 =head2 GetItemsLocationInfo
1386
1387   my @itemlocinfo = GetItemsLocationInfo($biblionumber);
1388
1389 Returns the branch names, shelving location and itemcallnumber for each item attached to the biblio in question
1390
1391 C<GetItemsInfo> returns a list of references-to-hash. Data returned:
1392
1393 =over 2
1394
1395 =item C<$data-E<gt>{homebranch}>
1396
1397 Branch Name of the item's homebranch
1398
1399 =item C<$data-E<gt>{holdingbranch}>
1400
1401 Branch Name of the item's holdingbranch
1402
1403 =item C<$data-E<gt>{location}>
1404
1405 Item's shelving location code
1406
1407 =item C<$data-E<gt>{location_intranet}>
1408
1409 The intranet description for the Shelving Location as set in authorised_values 'LOC'
1410
1411 =item C<$data-E<gt>{location_opac}>
1412
1413 The OPAC description for the Shelving Location as set in authorised_values 'LOC'.  Falls back to intranet description if no OPAC
1414 description is set.
1415
1416 =item C<$data-E<gt>{itemcallnumber}>
1417
1418 Item's itemcallnumber
1419
1420 =item C<$data-E<gt>{cn_sort}>
1421
1422 Item's call number normalized for sorting
1423
1424 =back
1425
1426 =cut
1427
1428 sub GetItemsLocationInfo {
1429         my $biblionumber = shift;
1430         my @results;
1431
1432         my $dbh = C4::Context->dbh;
1433         my $query = "SELECT a.branchname as homebranch, b.branchname as holdingbranch,
1434                             location, itemcallnumber, cn_sort
1435                      FROM items, branches as a, branches as b
1436                      WHERE homebranch = a.branchcode AND holdingbranch = b.branchcode
1437                      AND biblionumber = ?
1438                      ORDER BY cn_sort ASC";
1439         my $sth = $dbh->prepare($query);
1440         $sth->execute($biblionumber);
1441
1442         while ( my $data = $sth->fetchrow_hashref ) {
1443              $data->{location_intranet} = GetKohaAuthorisedValueLib('LOC', $data->{location});
1444              $data->{location_opac}= GetKohaAuthorisedValueLib('LOC', $data->{location}, 1);
1445              push @results, $data;
1446         }
1447         return @results;
1448 }
1449
1450 =head2 GetHostItemsInfo
1451
1452         $hostiteminfo = GetHostItemsInfo($hostfield);
1453         Returns the iteminfo for items linked to records via a host field
1454
1455 =cut
1456
1457 sub GetHostItemsInfo {
1458         my ($record) = @_;
1459         my @returnitemsInfo;
1460
1461         if (C4::Context->preference('marcflavour') eq 'MARC21' ||
1462         C4::Context->preference('marcflavour') eq 'NORMARC'){
1463             foreach my $hostfield ( $record->field('773') ) {
1464                 my $hostbiblionumber = $hostfield->subfield("0");
1465                 my $linkeditemnumber = $hostfield->subfield("9");
1466                 my @hostitemInfos = GetItemsInfo($hostbiblionumber);
1467                 foreach my $hostitemInfo (@hostitemInfos){
1468                         if ($hostitemInfo->{itemnumber} eq $linkeditemnumber){
1469                                 push (@returnitemsInfo,$hostitemInfo);
1470                                 last;
1471                         }
1472                 }
1473             }
1474         } elsif ( C4::Context->preference('marcflavour') eq 'UNIMARC'){
1475             foreach my $hostfield ( $record->field('461') ) {
1476                 my $hostbiblionumber = $hostfield->subfield("0");
1477                 my $linkeditemnumber = $hostfield->subfield("9");
1478                 my @hostitemInfos = GetItemsInfo($hostbiblionumber);
1479                 foreach my $hostitemInfo (@hostitemInfos){
1480                         if ($hostitemInfo->{itemnumber} eq $linkeditemnumber){
1481                                 push (@returnitemsInfo,$hostitemInfo);
1482                                 last;
1483                         }
1484                 }
1485             }
1486         }
1487         return @returnitemsInfo;
1488 }
1489
1490
1491 =head2 GetLastAcquisitions
1492
1493   my $lastacq = GetLastAcquisitions({'branches' => ('branch1','branch2'),
1494                                     'itemtypes' => ('BK','BD')}, 10);
1495
1496 =cut
1497
1498 sub  GetLastAcquisitions {
1499         my ($data,$max) = @_;
1500
1501         my $itemtype = C4::Context->preference('item-level_itypes') ? 'itype' : 'itemtype';
1502
1503         my $number_of_branches = @{$data->{branches}};
1504         my $number_of_itemtypes   = @{$data->{itemtypes}};
1505
1506
1507         my @where = ('WHERE 1 ');
1508         $number_of_branches and push @where
1509            , 'AND holdingbranch IN ('
1510            , join(',', ('?') x $number_of_branches )
1511            , ')'
1512          ;
1513
1514         $number_of_itemtypes and push @where
1515            , "AND $itemtype IN ("
1516            , join(',', ('?') x $number_of_itemtypes )
1517            , ')'
1518          ;
1519
1520         my $query = "SELECT biblio.biblionumber as biblionumber, title, dateaccessioned
1521                                  FROM items RIGHT JOIN biblio ON (items.biblionumber=biblio.biblionumber)
1522                                     RIGHT JOIN biblioitems ON (items.biblioitemnumber=biblioitems.biblioitemnumber)
1523                                     @where
1524                                     GROUP BY biblio.biblionumber
1525                                     ORDER BY dateaccessioned DESC LIMIT $max";
1526
1527         my $dbh = C4::Context->dbh;
1528         my $sth = $dbh->prepare($query);
1529
1530     $sth->execute((@{$data->{branches}}, @{$data->{itemtypes}}));
1531
1532         my @results;
1533         while( my $row = $sth->fetchrow_hashref){
1534                 push @results, {date => $row->{dateaccessioned}
1535                                                 , biblionumber => $row->{biblionumber}
1536                                                 , title => $row->{title}};
1537         }
1538
1539         return @results;
1540 }
1541
1542 =head2 GetItemnumbersForBiblio
1543
1544   my $itemnumbers = GetItemnumbersForBiblio($biblionumber);
1545
1546 Given a single biblionumber, return an arrayref of all the corresponding itemnumbers
1547
1548 =cut
1549
1550 sub GetItemnumbersForBiblio {
1551     my $biblionumber = shift;
1552     my @items;
1553     my $dbh = C4::Context->dbh;
1554     my $sth = $dbh->prepare("SELECT itemnumber FROM items WHERE biblionumber = ?");
1555     $sth->execute($biblionumber);
1556     while (my $result = $sth->fetchrow_hashref) {
1557         push @items, $result->{'itemnumber'};
1558     }
1559     return \@items;
1560 }
1561
1562 =head2 get_itemnumbers_of
1563
1564   my @itemnumbers_of = get_itemnumbers_of(@biblionumbers);
1565
1566 Given a list of biblionumbers, return the list of corresponding itemnumbers
1567 for each biblionumber.
1568
1569 Return a reference on a hash where keys are biblionumbers and values are
1570 references on array of itemnumbers.
1571
1572 =cut
1573
1574 sub get_itemnumbers_of {
1575     my @biblionumbers = @_;
1576
1577     my $dbh = C4::Context->dbh;
1578
1579     my $query = '
1580         SELECT itemnumber,
1581             biblionumber
1582         FROM items
1583         WHERE biblionumber IN (?' . ( ',?' x scalar @biblionumbers - 1 ) . ')
1584     ';
1585     my $sth = $dbh->prepare($query);
1586     $sth->execute(@biblionumbers);
1587
1588     my %itemnumbers_of;
1589
1590     while ( my ( $itemnumber, $biblionumber ) = $sth->fetchrow_array ) {
1591         push @{ $itemnumbers_of{$biblionumber} }, $itemnumber;
1592     }
1593
1594     return \%itemnumbers_of;
1595 }
1596
1597 =head2 get_hostitemnumbers_of
1598
1599   my @itemnumbers_of = get_hostitemnumbers_of($biblionumber);
1600
1601 Given a biblionumber, return the list of corresponding itemnumbers that are linked to it via host fields
1602
1603 Return a reference on a hash where key is a biblionumber and values are
1604 references on array of itemnumbers.
1605
1606 =cut
1607
1608
1609 sub get_hostitemnumbers_of {
1610         my ($biblionumber) = @_;
1611         my $marcrecord = GetMarcBiblio($biblionumber);
1612         my (@returnhostitemnumbers,$tag, $biblio_s, $item_s);
1613
1614         my $marcflavor = C4::Context->preference('marcflavour');
1615         if ($marcflavor eq 'MARC21' || $marcflavor eq 'NORMARC') {
1616         $tag='773';
1617         $biblio_s='0';
1618         $item_s='9';
1619     } elsif ($marcflavor eq 'UNIMARC') {
1620         $tag='461';
1621         $biblio_s='0';
1622         $item_s='9';
1623     }
1624
1625     foreach my $hostfield ( $marcrecord->field($tag) ) {
1626         my $hostbiblionumber = $hostfield->subfield($biblio_s);
1627         my $linkeditemnumber = $hostfield->subfield($item_s);
1628         my @itemnumbers;
1629         if (my $itemnumbers = get_itemnumbers_of($hostbiblionumber)->{$hostbiblionumber})
1630         {
1631             @itemnumbers = @$itemnumbers;
1632         }
1633         foreach my $itemnumber (@itemnumbers){
1634             if ($itemnumber eq $linkeditemnumber){
1635                 push (@returnhostitemnumbers,$itemnumber);
1636                 last;
1637             }
1638         }
1639     }
1640     return @returnhostitemnumbers;
1641 }
1642
1643
1644 =head2 GetItemnumberFromBarcode
1645
1646   $result = GetItemnumberFromBarcode($barcode);
1647
1648 =cut
1649
1650 sub GetItemnumberFromBarcode {
1651     my ($barcode) = @_;
1652     my $dbh = C4::Context->dbh;
1653
1654     my $rq =
1655       $dbh->prepare("SELECT itemnumber FROM items WHERE items.barcode=?");
1656     $rq->execute($barcode);
1657     my ($result) = $rq->fetchrow;
1658     return ($result);
1659 }
1660
1661 =head2 GetBarcodeFromItemnumber
1662
1663   $result = GetBarcodeFromItemnumber($itemnumber);
1664
1665 =cut
1666
1667 sub GetBarcodeFromItemnumber {
1668     my ($itemnumber) = @_;
1669     my $dbh = C4::Context->dbh;
1670
1671     my $rq =
1672       $dbh->prepare("SELECT barcode FROM items WHERE items.itemnumber=?");
1673     $rq->execute($itemnumber);
1674     my ($result) = $rq->fetchrow;
1675     return ($result);
1676 }
1677
1678 =head2 GetHiddenItemnumbers
1679
1680     my @itemnumbers_to_hide = GetHiddenItemnumbers(@items);
1681
1682 Given a list of items it checks which should be hidden from the OPAC given
1683 the current configuration. Returns a list of itemnumbers corresponding to
1684 those that should be hidden.
1685
1686 =cut
1687
1688 sub GetHiddenItemnumbers {
1689     my (@items) = @_;
1690     my @resultitems;
1691
1692     my $yaml = C4::Context->preference('OpacHiddenItems');
1693     return () if (! $yaml =~ /\S/ );
1694     $yaml = "$yaml\n\n"; # YAML is anal on ending \n. Surplus does not hurt
1695     my $hidingrules;
1696     eval {
1697         $hidingrules = YAML::Load($yaml);
1698     };
1699     if ($@) {
1700         warn "Unable to parse OpacHiddenItems syspref : $@";
1701         return ();
1702     }
1703     my $dbh = C4::Context->dbh;
1704
1705     # For each item
1706     foreach my $item (@items) {
1707
1708         # We check each rule
1709         foreach my $field (keys %$hidingrules) {
1710             my $val;
1711             if (exists $item->{$field}) {
1712                 $val = $item->{$field};
1713             }
1714             else {
1715                 my $query = "SELECT $field from items where itemnumber = ?";
1716                 $val = $dbh->selectrow_array($query, undef, $item->{'itemnumber'});
1717             }
1718             $val = '' unless defined $val;
1719
1720             # If the results matches the values in the yaml file
1721             if (any { $val eq $_ } @{$hidingrules->{$field}}) {
1722
1723                 # We add the itemnumber to the list
1724                 push @resultitems, $item->{'itemnumber'};
1725
1726                 # If at least one rule matched for an item, no need to test the others
1727                 last;
1728             }
1729         }
1730     }
1731     return @resultitems;
1732 }
1733
1734 =head3 get_item_authorised_values
1735
1736 find the types and values for all authorised values assigned to this item.
1737
1738 parameters: itemnumber
1739
1740 returns: a hashref malling the authorised value to the value set for this itemnumber
1741
1742     $authorised_values = {
1743              'CCODE'      => undef,
1744              'DAMAGED'    => '0',
1745              'LOC'        => '3',
1746              'LOST'       => '0'
1747              'NOT_LOAN'   => '0',
1748              'RESTRICTED' => undef,
1749              'STACK'      => undef,
1750              'WITHDRAWN'  => '0',
1751              'branches'   => 'CPL',
1752              'cn_source'  => undef,
1753              'itemtypes'  => 'SER',
1754            };
1755
1756 Notes: see C4::Biblio::get_biblio_authorised_values for a similar method at the biblio level.
1757
1758 =cut
1759
1760 sub get_item_authorised_values {
1761     my $itemnumber = shift;
1762
1763     # assume that these entries in the authorised_value table are item level.
1764     my $query = q(SELECT distinct authorised_value, kohafield
1765                     FROM marc_subfield_structure
1766                     WHERE kohafield like 'item%'
1767                       AND authorised_value != '' );
1768
1769     my $itemlevel_authorised_values = C4::Context->dbh->selectall_hashref( $query, 'authorised_value' );
1770     my $iteminfo = GetItem( $itemnumber );
1771     # warn( Data::Dumper->Dump( [ $itemlevel_authorised_values ], [ 'itemlevel_authorised_values' ] ) );
1772     my $return;
1773     foreach my $this_authorised_value ( keys %$itemlevel_authorised_values ) {
1774         my $field = $itemlevel_authorised_values->{ $this_authorised_value }->{'kohafield'};
1775         $field =~ s/^items\.//;
1776         if ( exists $iteminfo->{ $field } ) {
1777             $return->{ $this_authorised_value } = $iteminfo->{ $field };
1778         }
1779     }
1780     # warn( Data::Dumper->Dump( [ $return ], [ 'return' ] ) );
1781     return $return;
1782 }
1783
1784 =head3 get_authorised_value_images
1785
1786 find a list of icons that are appropriate for display based on the
1787 authorised values for a biblio.
1788
1789 parameters: listref of authorised values, such as comes from
1790 get_item_authorised_values or
1791 from C4::Biblio::get_biblio_authorised_values
1792
1793 returns: listref of hashrefs for each image. Each hashref looks like this:
1794
1795       { imageurl => '/intranet-tmpl/prog/img/itemtypeimg/npl/WEB.gif',
1796         label    => '',
1797         category => '',
1798         value    => '', }
1799
1800 Notes: Currently, I put on the full path to the images on the staff
1801 side. This should either be configurable or not done at all. Since I
1802 have to deal with 'intranet' or 'opac' in
1803 get_biblio_authorised_values, perhaps I should be passing it in.
1804
1805 =cut
1806
1807 sub get_authorised_value_images {
1808     my $authorised_values = shift;
1809
1810     my @imagelist;
1811
1812     my $authorised_value_list = GetAuthorisedValues();
1813     # warn ( Data::Dumper->Dump( [ $authorised_value_list ], [ 'authorised_value_list' ] ) );
1814     foreach my $this_authorised_value ( @$authorised_value_list ) {
1815         if ( exists $authorised_values->{ $this_authorised_value->{'category'} }
1816              && $authorised_values->{ $this_authorised_value->{'category'} } eq $this_authorised_value->{'authorised_value'} ) {
1817             # warn ( Data::Dumper->Dump( [ $this_authorised_value ], [ 'this_authorised_value' ] ) );
1818             if ( defined $this_authorised_value->{'imageurl'} ) {
1819                 push @imagelist, { imageurl => C4::Koha::getitemtypeimagelocation( 'intranet', $this_authorised_value->{'imageurl'} ),
1820                                    label    => $this_authorised_value->{'lib'},
1821                                    category => $this_authorised_value->{'category'},
1822                                    value    => $this_authorised_value->{'authorised_value'}, };
1823             }
1824         }
1825     }
1826
1827     # warn ( Data::Dumper->Dump( [ \@imagelist ], [ 'imagelist' ] ) );
1828     return \@imagelist;
1829
1830 }
1831
1832 =head1 LIMITED USE FUNCTIONS
1833
1834 The following functions, while part of the public API,
1835 are not exported.  This is generally because they are
1836 meant to be used by only one script for a specific
1837 purpose, and should not be used in any other context
1838 without careful thought.
1839
1840 =cut
1841
1842 =head2 GetMarcItem
1843
1844   my $item_marc = GetMarcItem($biblionumber, $itemnumber);
1845
1846 Returns MARC::Record of the item passed in parameter.
1847 This function is meant for use only in C<cataloguing/additem.pl>,
1848 where it is needed to support that script's MARC-like
1849 editor.
1850
1851 =cut
1852
1853 sub GetMarcItem {
1854     my ( $biblionumber, $itemnumber ) = @_;
1855
1856     # GetMarcItem has been revised so that it does the following:
1857     #  1. Gets the item information from the items table.
1858     #  2. Converts it to a MARC field for storage in the bib record.
1859     #
1860     # The previous behavior was:
1861     #  1. Get the bib record.
1862     #  2. Return the MARC tag corresponding to the item record.
1863     #
1864     # The difference is that one treats the items row as authoritative,
1865     # while the other treats the MARC representation as authoritative
1866     # under certain circumstances.
1867
1868     my $itemrecord = GetItem($itemnumber);
1869
1870     # Tack on 'items.' prefix to column names so that TransformKohaToMarc will work.
1871     # Also, don't emit a subfield if the underlying field is blank.
1872
1873
1874     return Item2Marc($itemrecord,$biblionumber);
1875
1876 }
1877 sub Item2Marc {
1878         my ($itemrecord,$biblionumber)=@_;
1879     my $mungeditem = {
1880         map {
1881             defined($itemrecord->{$_}) && $itemrecord->{$_} ne '' ? ("items.$_" => $itemrecord->{$_}) : ()
1882         } keys %{ $itemrecord }
1883     };
1884     my $itemmarc = TransformKohaToMarc($mungeditem);
1885     my ( $itemtag, $itemsubfield ) = GetMarcFromKohaField("items.itemnumber",GetFrameworkCode($biblionumber)||'');
1886
1887     my $unlinked_item_subfields = _parse_unlinked_item_subfields_from_xml($mungeditem->{'items.more_subfields_xml'});
1888     if (defined $unlinked_item_subfields and $#$unlinked_item_subfields > -1) {
1889                 foreach my $field ($itemmarc->field($itemtag)){
1890             $field->add_subfields(@$unlinked_item_subfields);
1891         }
1892     }
1893         return $itemmarc;
1894 }
1895
1896 =head1 PRIVATE FUNCTIONS AND VARIABLES
1897
1898 The following functions are not meant to be called
1899 directly, but are documented in order to explain
1900 the inner workings of C<C4::Items>.
1901
1902 =cut
1903
1904 =head2 %derived_columns
1905
1906 This hash keeps track of item columns that
1907 are strictly derived from other columns in
1908 the item record and are not meant to be set
1909 independently.
1910
1911 Each key in the hash should be the name of a
1912 column (as named by TransformMarcToKoha).  Each
1913 value should be hashref whose keys are the
1914 columns on which the derived column depends.  The
1915 hashref should also contain a 'BUILDER' key
1916 that is a reference to a sub that calculates
1917 the derived value.
1918
1919 =cut
1920
1921 my %derived_columns = (
1922     'items.cn_sort' => {
1923         'itemcallnumber' => 1,
1924         'items.cn_source' => 1,
1925         'BUILDER' => \&_calc_items_cn_sort,
1926     }
1927 );
1928
1929 =head2 _set_derived_columns_for_add
1930
1931   _set_derived_column_for_add($item);
1932
1933 Given an item hash representing a new item to be added,
1934 calculate any derived columns.  Currently the only
1935 such column is C<items.cn_sort>.
1936
1937 =cut
1938
1939 sub _set_derived_columns_for_add {
1940     my $item = shift;
1941
1942     foreach my $column (keys %derived_columns) {
1943         my $builder = $derived_columns{$column}->{'BUILDER'};
1944         my $source_values = {};
1945         foreach my $source_column (keys %{ $derived_columns{$column} }) {
1946             next if $source_column eq 'BUILDER';
1947             $source_values->{$source_column} = $item->{$source_column};
1948         }
1949         $builder->($item, $source_values);
1950     }
1951 }
1952
1953 =head2 _set_derived_columns_for_mod
1954
1955   _set_derived_column_for_mod($item);
1956
1957 Given an item hash representing a new item to be modified.
1958 calculate any derived columns.  Currently the only
1959 such column is C<items.cn_sort>.
1960
1961 This routine differs from C<_set_derived_columns_for_add>
1962 in that it needs to handle partial item records.  In other
1963 words, the caller of C<ModItem> may have supplied only one
1964 or two columns to be changed, so this function needs to
1965 determine whether any of the columns to be changed affect
1966 any of the derived columns.  Also, if a derived column
1967 depends on more than one column, but the caller is not
1968 changing all of then, this routine retrieves the unchanged
1969 values from the database in order to ensure a correct
1970 calculation.
1971
1972 =cut
1973
1974 sub _set_derived_columns_for_mod {
1975     my $item = shift;
1976
1977     foreach my $column (keys %derived_columns) {
1978         my $builder = $derived_columns{$column}->{'BUILDER'};
1979         my $source_values = {};
1980         my %missing_sources = ();
1981         my $must_recalc = 0;
1982         foreach my $source_column (keys %{ $derived_columns{$column} }) {
1983             next if $source_column eq 'BUILDER';
1984             if (exists $item->{$source_column}) {
1985                 $must_recalc = 1;
1986                 $source_values->{$source_column} = $item->{$source_column};
1987             } else {
1988                 $missing_sources{$source_column} = 1;
1989             }
1990         }
1991         if ($must_recalc) {
1992             foreach my $source_column (keys %missing_sources) {
1993                 $source_values->{$source_column} = _get_single_item_column($source_column, $item->{'itemnumber'});
1994             }
1995             $builder->($item, $source_values);
1996         }
1997     }
1998 }
1999
2000 =head2 _do_column_fixes_for_mod
2001
2002   _do_column_fixes_for_mod($item);
2003
2004 Given an item hashref containing one or more
2005 columns to modify, fix up certain values.
2006 Specifically, set to 0 any passed value
2007 of C<notforloan>, C<damaged>, C<itemlost>, or
2008 C<withdrawn> that is either undefined or
2009 contains the empty string.
2010
2011 =cut
2012
2013 sub _do_column_fixes_for_mod {
2014     my $item = shift;
2015
2016     if (exists $item->{'notforloan'} and
2017         (not defined $item->{'notforloan'} or $item->{'notforloan'} eq '')) {
2018         $item->{'notforloan'} = 0;
2019     }
2020     if (exists $item->{'damaged'} and
2021         (not defined $item->{'damaged'} or $item->{'damaged'} eq '')) {
2022         $item->{'damaged'} = 0;
2023     }
2024     if (exists $item->{'itemlost'} and
2025         (not defined $item->{'itemlost'} or $item->{'itemlost'} eq '')) {
2026         $item->{'itemlost'} = 0;
2027     }
2028     if (exists $item->{'withdrawn'} and
2029         (not defined $item->{'withdrawn'} or $item->{'withdrawn'} eq '')) {
2030         $item->{'withdrawn'} = 0;
2031     }
2032     if (exists $item->{'location'} && !$item->{'permanent_location'}) {
2033         $item->{'permanent_location'} = $item->{'location'};
2034     }
2035     if (exists $item->{'timestamp'}) {
2036         delete $item->{'timestamp'};
2037     }
2038 }
2039
2040 =head2 _get_single_item_column
2041
2042   _get_single_item_column($column, $itemnumber);
2043
2044 Retrieves the value of a single column from an C<items>
2045 row specified by C<$itemnumber>.
2046
2047 =cut
2048
2049 sub _get_single_item_column {
2050     my $column = shift;
2051     my $itemnumber = shift;
2052
2053     my $dbh = C4::Context->dbh;
2054     my $sth = $dbh->prepare("SELECT $column FROM items WHERE itemnumber = ?");
2055     $sth->execute($itemnumber);
2056     my ($value) = $sth->fetchrow();
2057     return $value;
2058 }
2059
2060 =head2 _calc_items_cn_sort
2061
2062   _calc_items_cn_sort($item, $source_values);
2063
2064 Helper routine to calculate C<items.cn_sort>.
2065
2066 =cut
2067
2068 sub _calc_items_cn_sort {
2069     my $item = shift;
2070     my $source_values = shift;
2071
2072     $item->{'items.cn_sort'} = GetClassSort($source_values->{'items.cn_source'}, $source_values->{'itemcallnumber'}, "");
2073 }
2074
2075 =head2 _set_defaults_for_add
2076
2077   _set_defaults_for_add($item_hash);
2078
2079 Given an item hash representing an item to be added, set
2080 correct default values for columns whose default value
2081 is not handled by the DBMS.  This includes the following
2082 columns:
2083
2084 =over 2
2085
2086 =item *
2087
2088 C<items.dateaccessioned>
2089
2090 =item *
2091
2092 C<items.notforloan>
2093
2094 =item *
2095
2096 C<items.damaged>
2097
2098 =item *
2099
2100 C<items.itemlost>
2101
2102 =item *
2103
2104 C<items.withdrawn>
2105
2106 =back
2107
2108 =cut
2109
2110 sub _set_defaults_for_add {
2111     my $item = shift;
2112     $item->{dateaccessioned} ||= C4::Dates->new->output('iso');
2113     $item->{$_} ||= 0 for (qw( notforloan damaged itemlost withdrawn));
2114 }
2115
2116 =head2 _koha_new_item
2117
2118   my ($itemnumber,$error) = _koha_new_item( $item, $barcode );
2119
2120 Perform the actual insert into the C<items> table.
2121
2122 =cut
2123
2124 sub _koha_new_item {
2125     my ( $item, $barcode ) = @_;
2126     my $dbh=C4::Context->dbh;
2127     my $error;
2128     my $query =
2129            "INSERT INTO items SET
2130             biblionumber        = ?,
2131             biblioitemnumber    = ?,
2132             barcode             = ?,
2133             dateaccessioned     = ?,
2134             booksellerid        = ?,
2135             homebranch          = ?,
2136             price               = ?,
2137             replacementprice    = ?,
2138             replacementpricedate = ?,
2139             datelastborrowed    = ?,
2140             datelastseen        = ?,
2141             stack               = ?,
2142             notforloan          = ?,
2143             damaged             = ?,
2144             itemlost            = ?,
2145             withdrawn            = ?,
2146             itemcallnumber      = ?,
2147             coded_location_qualifier = ?,
2148             restricted          = ?,
2149             itemnotes           = ?,
2150             holdingbranch       = ?,
2151             paidfor             = ?,
2152             location            = ?,
2153             permanent_location            = ?,
2154             onloan              = ?,
2155             issues              = ?,
2156             renewals            = ?,
2157             reserves            = ?,
2158             cn_source           = ?,
2159             cn_sort             = ?,
2160             ccode               = ?,
2161             itype               = ?,
2162             materials           = ?,
2163             uri = ?,
2164             enumchron           = ?,
2165             more_subfields_xml  = ?,
2166             copynumber          = ?,
2167             stocknumber         = ?
2168           ";
2169     my $sth = $dbh->prepare($query);
2170     my $today = C4::Dates->today('iso');
2171    $sth->execute(
2172             $item->{'biblionumber'},
2173             $item->{'biblioitemnumber'},
2174             $barcode,
2175             $item->{'dateaccessioned'},
2176             $item->{'booksellerid'},
2177             $item->{'homebranch'},
2178             $item->{'price'},
2179             $item->{'replacementprice'},
2180             $item->{'replacementpricedate'} || $today,
2181             $item->{datelastborrowed},
2182             $item->{datelastseen} || $today,
2183             $item->{stack},
2184             $item->{'notforloan'},
2185             $item->{'damaged'},
2186             $item->{'itemlost'},
2187             $item->{'withdrawn'},
2188             $item->{'itemcallnumber'},
2189             $item->{'coded_location_qualifier'},
2190             $item->{'restricted'},
2191             $item->{'itemnotes'},
2192             $item->{'holdingbranch'},
2193             $item->{'paidfor'},
2194             $item->{'location'},
2195             $item->{'permanent_location'},
2196             $item->{'onloan'},
2197             $item->{'issues'},
2198             $item->{'renewals'},
2199             $item->{'reserves'},
2200             $item->{'items.cn_source'},
2201             $item->{'items.cn_sort'},
2202             $item->{'ccode'},
2203             $item->{'itype'},
2204             $item->{'materials'},
2205             $item->{'uri'},
2206             $item->{'enumchron'},
2207             $item->{'more_subfields_xml'},
2208             $item->{'copynumber'},
2209             $item->{'stocknumber'},
2210     );
2211
2212     my $itemnumber;
2213     if ( defined $sth->errstr ) {
2214         $error.="ERROR in _koha_new_item $query".$sth->errstr;
2215     }
2216     else {
2217         $itemnumber = $dbh->{'mysql_insertid'};
2218     }
2219
2220     return ( $itemnumber, $error );
2221 }
2222
2223 =head2 MoveItemFromBiblio
2224
2225   MoveItemFromBiblio($itenumber, $frombiblio, $tobiblio);
2226
2227 Moves an item from a biblio to another
2228
2229 Returns undef if the move failed or the biblionumber of the destination record otherwise
2230
2231 =cut
2232
2233 sub MoveItemFromBiblio {
2234     my ($itemnumber, $frombiblio, $tobiblio) = @_;
2235     my $dbh = C4::Context->dbh;
2236     my $sth = $dbh->prepare("SELECT biblioitemnumber FROM biblioitems WHERE biblionumber = ?");
2237     $sth->execute( $tobiblio );
2238     my ( $tobiblioitem ) = $sth->fetchrow();
2239     $sth = $dbh->prepare("UPDATE items SET biblioitemnumber = ?, biblionumber = ? WHERE itemnumber = ? AND biblionumber = ?");
2240     my $return = $sth->execute($tobiblioitem, $tobiblio, $itemnumber, $frombiblio);
2241     if ($return == 1) {
2242         ModZebra( $tobiblio, "specialUpdate", "biblioserver" );
2243         ModZebra( $frombiblio, "specialUpdate", "biblioserver" );
2244             # Checking if the item we want to move is in an order
2245         require C4::Acquisition;
2246         my $order = C4::Acquisition::GetOrderFromItemnumber($itemnumber);
2247             if ($order) {
2248                     # Replacing the biblionumber within the order if necessary
2249                     $order->{'biblionumber'} = $tobiblio;
2250                 C4::Acquisition::ModOrder($order);
2251             }
2252         return $tobiblio;
2253         }
2254     return;
2255 }
2256
2257 =head2 DelItemCheck
2258
2259    DelItemCheck($dbh, $biblionumber, $itemnumber);
2260
2261 Exported function (core API) for deleting an item record in Koha if there no current issue.
2262
2263 =cut
2264
2265 sub DelItemCheck {
2266     my ( $dbh, $biblionumber, $itemnumber ) = @_;
2267     my $error;
2268
2269         my $countanalytics=GetAnalyticsCount($itemnumber);
2270
2271
2272     # check that there is no issue on this item before deletion.
2273     my $sth = $dbh->prepare(q{
2274         SELECT COUNT(*) FROM issues
2275         WHERE itemnumber = ?
2276     });
2277     $sth->execute($itemnumber);
2278     my ($onloan) = $sth->fetchrow;
2279
2280     my $item = GetItem($itemnumber);
2281
2282     if ($onloan){
2283         $error = "book_on_loan"
2284     }
2285     elsif ( !C4::Context->IsSuperLibrarian()
2286         and C4::Context->preference("IndependentBranches")
2287         and ( C4::Context->userenv->{branch} ne $item->{'homebranch'} ) )
2288     {
2289         $error = "not_same_branch";
2290     }
2291         else{
2292         # check it doesnt have a waiting reserve
2293         $sth = $dbh->prepare(q{
2294             SELECT COUNT(*) FROM reserves
2295             WHERE (found = 'W' OR found = 'T')
2296             AND itemnumber = ?
2297         });
2298         $sth->execute($itemnumber);
2299         my ($reserve) = $sth->fetchrow;
2300         if ($reserve){
2301             $error = "book_reserved";
2302         } elsif ($countanalytics > 0){
2303                 $error = "linked_analytics";
2304         } else {
2305             DelItem(
2306                 {
2307                     biblionumber => $biblionumber,
2308                     itemnumber   => $itemnumber
2309                 }
2310             );
2311             return 1;
2312         }
2313     }
2314     return $error;
2315 }
2316
2317 =head2 _koha_modify_item
2318
2319   my ($itemnumber,$error) =_koha_modify_item( $item );
2320
2321 Perform the actual update of the C<items> row.  Note that this
2322 routine accepts a hashref specifying the columns to update.
2323
2324 =cut
2325
2326 sub _koha_modify_item {
2327     my ( $item ) = @_;
2328     my $dbh=C4::Context->dbh;
2329     my $error;
2330
2331     my $query = "UPDATE items SET ";
2332     my @bind;
2333     for my $key ( keys %$item ) {
2334         next if ( $key eq 'itemnumber' );
2335         $query.="$key=?,";
2336         push @bind, $item->{$key};
2337     }
2338     $query =~ s/,$//;
2339     $query .= " WHERE itemnumber=?";
2340     push @bind, $item->{'itemnumber'};
2341     my $sth = $dbh->prepare($query);
2342     $sth->execute(@bind);
2343     if ( $sth->err ) {
2344         $error.="ERROR in _koha_modify_item $query: ".$sth->errstr;
2345         warn $error;
2346     }
2347     return ($item->{'itemnumber'},$error);
2348 }
2349
2350 =head2 _koha_delete_item
2351
2352   _koha_delete_item( $itemnum );
2353
2354 Internal function to delete an item record from the koha tables
2355
2356 =cut
2357
2358 sub _koha_delete_item {
2359     my ( $itemnum ) = @_;
2360
2361     my $dbh = C4::Context->dbh;
2362     # save the deleted item to deleteditems table
2363     my $sth = $dbh->prepare("SELECT * FROM items WHERE itemnumber=?");
2364     $sth->execute($itemnum);
2365     my $data = $sth->fetchrow_hashref();
2366
2367     # There is no item to delete
2368     return 0 unless $data;
2369
2370     my $query = "INSERT INTO deleteditems SET ";
2371     my @bind  = ();
2372     foreach my $key ( keys %$data ) {
2373         next if ( $key eq 'timestamp' ); # timestamp will be set by db
2374         $query .= "$key = ?,";
2375         push( @bind, $data->{$key} );
2376     }
2377     $query =~ s/\,$//;
2378     $sth = $dbh->prepare($query);
2379     $sth->execute(@bind);
2380
2381     # delete from items table
2382     $sth = $dbh->prepare("DELETE FROM items WHERE itemnumber=?");
2383     my $deleted = $sth->execute($itemnum);
2384     return ( $deleted == 1 ) ? 1 : 0;
2385 }
2386
2387 =head2 _marc_from_item_hash
2388
2389   my $item_marc = _marc_from_item_hash($item, $frameworkcode[, $unlinked_item_subfields]);
2390
2391 Given an item hash representing a complete item record,
2392 create a C<MARC::Record> object containing an embedded
2393 tag representing that item.
2394
2395 The third, optional parameter C<$unlinked_item_subfields> is
2396 an arrayref of subfields (not mapped to C<items> fields per the
2397 framework) to be added to the MARC representation
2398 of the item.
2399
2400 =cut
2401
2402 sub _marc_from_item_hash {
2403     my $item = shift;
2404     my $frameworkcode = shift;
2405     my $unlinked_item_subfields;
2406     if (@_) {
2407         $unlinked_item_subfields = shift;
2408     }
2409
2410     # Tack on 'items.' prefix to column names so lookup from MARC frameworks will work
2411     # Also, don't emit a subfield if the underlying field is blank.
2412     my $mungeditem = { map {  (defined($item->{$_}) and $item->{$_} ne '') ?
2413                                 (/^items\./ ? ($_ => $item->{$_}) : ("items.$_" => $item->{$_}))
2414                                 : ()  } keys %{ $item } };
2415
2416     my $item_marc = MARC::Record->new();
2417     foreach my $item_field ( keys %{$mungeditem} ) {
2418         my ( $tag, $subfield ) = GetMarcFromKohaField( $item_field, $frameworkcode );
2419         next unless defined $tag and defined $subfield;    # skip if not mapped to MARC field
2420         my @values = split(/\s?\|\s?/, $mungeditem->{$item_field}, -1);
2421         foreach my $value (@values){
2422             if ( my $field = $item_marc->field($tag) ) {
2423                     $field->add_subfields( $subfield => $value );
2424             } else {
2425                 my $add_subfields = [];
2426                 if (defined $unlinked_item_subfields and ref($unlinked_item_subfields) eq 'ARRAY' and $#$unlinked_item_subfields > -1) {
2427                     $add_subfields = $unlinked_item_subfields;
2428             }
2429             $item_marc->add_fields( $tag, " ", " ", $subfield => $value, @$add_subfields );
2430             }
2431         }
2432     }
2433
2434     return $item_marc;
2435 }
2436
2437 =head2 _repack_item_errors
2438
2439 Add an error message hash generated by C<CheckItemPreSave>
2440 to a list of errors.
2441
2442 =cut
2443
2444 sub _repack_item_errors {
2445     my $item_sequence_num = shift;
2446     my $item_ref = shift;
2447     my $error_ref = shift;
2448
2449     my @repacked_errors = ();
2450
2451     foreach my $error_code (sort keys %{ $error_ref }) {
2452         my $repacked_error = {};
2453         $repacked_error->{'item_sequence'} = $item_sequence_num;
2454         $repacked_error->{'item_barcode'} = exists($item_ref->{'barcode'}) ? $item_ref->{'barcode'} : '';
2455         $repacked_error->{'error_code'} = $error_code;
2456         $repacked_error->{'error_information'} = $error_ref->{$error_code};
2457         push @repacked_errors, $repacked_error;
2458     }
2459
2460     return @repacked_errors;
2461 }
2462
2463 =head2 _get_unlinked_item_subfields
2464
2465   my $unlinked_item_subfields = _get_unlinked_item_subfields($original_item_marc, $frameworkcode);
2466
2467 =cut
2468
2469 sub _get_unlinked_item_subfields {
2470     my $original_item_marc = shift;
2471     my $frameworkcode = shift;
2472
2473     my $marcstructure = GetMarcStructure(1, $frameworkcode);
2474
2475     # assume that this record has only one field, and that that
2476     # field contains only the item information
2477     my $subfields = [];
2478     my @fields = $original_item_marc->fields();
2479     if ($#fields > -1) {
2480         my $field = $fields[0];
2481             my $tag = $field->tag();
2482         foreach my $subfield ($field->subfields()) {
2483             if (defined $subfield->[1] and
2484                 $subfield->[1] ne '' and
2485                 !$marcstructure->{$tag}->{$subfield->[0]}->{'kohafield'}) {
2486                 push @$subfields, $subfield->[0] => $subfield->[1];
2487             }
2488         }
2489     }
2490     return $subfields;
2491 }
2492
2493 =head2 _get_unlinked_subfields_xml
2494
2495   my $unlinked_subfields_xml = _get_unlinked_subfields_xml($unlinked_item_subfields);
2496
2497 =cut
2498
2499 sub _get_unlinked_subfields_xml {
2500     my $unlinked_item_subfields = shift;
2501
2502     my $xml;
2503     if (defined $unlinked_item_subfields and ref($unlinked_item_subfields) eq 'ARRAY' and $#$unlinked_item_subfields > -1) {
2504         my $marc = MARC::Record->new();
2505         # use of tag 999 is arbitrary, and doesn't need to match the item tag
2506         # used in the framework
2507         $marc->append_fields(MARC::Field->new('999', ' ', ' ', @$unlinked_item_subfields));
2508         $marc->encoding("UTF-8");
2509         $xml = $marc->as_xml("USMARC");
2510     }
2511
2512     return $xml;
2513 }
2514
2515 =head2 _parse_unlinked_item_subfields_from_xml
2516
2517   my $unlinked_item_subfields = _parse_unlinked_item_subfields_from_xml($whole_item->{'more_subfields_xml'}):
2518
2519 =cut
2520
2521 sub  _parse_unlinked_item_subfields_from_xml {
2522     my $xml = shift;
2523     require C4::Charset;
2524     return unless defined $xml and $xml ne "";
2525     my $marc = MARC::Record->new_from_xml(C4::Charset::StripNonXmlChars($xml),'UTF-8');
2526     my $unlinked_subfields = [];
2527     my @fields = $marc->fields();
2528     if ($#fields > -1) {
2529         foreach my $subfield ($fields[0]->subfields()) {
2530             push @$unlinked_subfields, $subfield->[0] => $subfield->[1];
2531         }
2532     }
2533     return $unlinked_subfields;
2534 }
2535
2536 =head2 GetAnalyticsCount
2537
2538   $count= &GetAnalyticsCount($itemnumber)
2539
2540 counts Usage of itemnumber in Analytical bibliorecords.
2541
2542 =cut
2543
2544 sub GetAnalyticsCount {
2545     my ($itemnumber) = @_;
2546     require C4::Search;
2547
2548     ### ZOOM search here
2549     my $query;
2550     $query= "hi=".$itemnumber;
2551             my ($err,$res,$result) = C4::Search::SimpleSearch($query,0,10);
2552     return ($result);
2553 }
2554
2555 =head2 GetItemHolds
2556
2557   $holds = &GetItemHolds($biblionumber, $itemnumber);
2558
2559 This function return the count of holds with $biblionumber and $itemnumber
2560
2561 =cut
2562
2563 sub GetItemHolds {
2564     my ($biblionumber, $itemnumber) = @_;
2565     my $holds;
2566     my $dbh            = C4::Context->dbh;
2567     my $query          = "SELECT count(*)
2568         FROM  reserves
2569         WHERE biblionumber=? AND itemnumber=?";
2570     my $sth = $dbh->prepare($query);
2571     $sth->execute($biblionumber, $itemnumber);
2572     $holds = $sth->fetchrow;
2573     return $holds;
2574 }
2575
2576 =head2 SearchItemsByField
2577
2578     my $items = SearchItemsByField($field, $value);
2579
2580 SearchItemsByField will search for items on a specific given field.
2581 For instance you can search all items with a specific stocknumber like this:
2582
2583     my $items = SearchItemsByField('stocknumber', $stocknumber);
2584
2585 =cut
2586
2587 sub SearchItemsByField {
2588     my ($field, $value) = @_;
2589
2590     my $filters = [ {
2591             field => $field,
2592             query => $value,
2593     } ];
2594
2595     my ($results) = SearchItems($filters);
2596     return $results;
2597 }
2598
2599 sub _SearchItems_build_where_fragment {
2600     my ($filter) = @_;
2601
2602     my $dbh = C4::Context->dbh;
2603
2604     my $where_fragment;
2605     if (exists($filter->{conjunction})) {
2606         my (@where_strs, @where_args);
2607         foreach my $f (@{ $filter->{filters} }) {
2608             my $fragment = _SearchItems_build_where_fragment($f);
2609             if ($fragment) {
2610                 push @where_strs, $fragment->{str};
2611                 push @where_args, @{ $fragment->{args} };
2612             }
2613         }
2614         my $where_str = '';
2615         if (@where_strs) {
2616             $where_str = '(' . join (' ' . $filter->{conjunction} . ' ', @where_strs) . ')';
2617             $where_fragment = {
2618                 str => $where_str,
2619                 args => \@where_args,
2620             };
2621         }
2622     } else {
2623         my @columns = Koha::Database->new()->schema()->resultset('Item')->result_source->columns;
2624         push @columns, Koha::Database->new()->schema()->resultset('Biblio')->result_source->columns;
2625         push @columns, Koha::Database->new()->schema()->resultset('Biblioitem')->result_source->columns;
2626         my @operators = qw(= != > < >= <= like);
2627         my $field = $filter->{field};
2628         if ( (0 < grep /^$field$/, @columns) or (substr($field, 0, 5) eq 'marc:') ) {
2629             my $op = $filter->{operator};
2630             my $query = $filter->{query};
2631
2632             if (!$op or (0 == grep /^$op$/, @operators)) {
2633                 $op = '='; # default operator
2634             }
2635
2636             my $column;
2637             if ($field =~ /^marc:(\d{3})(?:\$(\w))?$/) {
2638                 my $marcfield = $1;
2639                 my $marcsubfield = $2;
2640                 my ($kohafield) = $dbh->selectrow_array(q|
2641                     SELECT kohafield FROM marc_subfield_structure
2642                     WHERE tagfield=? AND tagsubfield=? AND frameworkcode=''
2643                 |, undef, $marcfield, $marcsubfield);
2644
2645                 if ($kohafield) {
2646                     $column = $kohafield;
2647                 } else {
2648                     # MARC field is not linked to a DB field so we need to use
2649                     # ExtractValue on biblioitems.marcxml or
2650                     # items.more_subfields_xml, depending on the MARC field.
2651                     my $xpath;
2652                     my $sqlfield;
2653                     my ($itemfield) = GetMarcFromKohaField('items.itemnumber');
2654                     if ($marcfield eq $itemfield) {
2655                         $sqlfield = 'more_subfields_xml';
2656                         $xpath = '//record/datafield/subfield[@code="' . $marcsubfield . '"]';
2657                     } else {
2658                         $sqlfield = 'marcxml';
2659                         if ($marcfield < 10) {
2660                             $xpath = "//record/controlfield[\@tag=\"$marcfield\"]";
2661                         } else {
2662                             $xpath = "//record/datafield[\@tag=\"$marcfield\"]/subfield[\@code=\"$marcsubfield\"]";
2663                         }
2664                     }
2665                     $column = "ExtractValue($sqlfield, '$xpath')";
2666                 }
2667             } else {
2668                 $column = $field;
2669             }
2670
2671             if (ref $query eq 'ARRAY') {
2672                 if ($op eq '=') {
2673                     $op = 'IN';
2674                 } elsif ($op eq '!=') {
2675                     $op = 'NOT IN';
2676                 }
2677                 $where_fragment = {
2678                     str => "$column $op (" . join (',', ('?') x @$query) . ")",
2679                     args => $query,
2680                 };
2681             } else {
2682                 $where_fragment = {
2683                     str => "$column $op ?",
2684                     args => [ $query ],
2685                 };
2686             }
2687         }
2688     }
2689
2690     return $where_fragment;
2691 }
2692
2693 =head2 SearchItems
2694
2695     my ($items, $total) = SearchItems($filter, $params);
2696
2697 Perform a search among items
2698
2699 $filter is a reference to a hash which can be a filter, or a combination of filters.
2700
2701 A filter has the following keys:
2702
2703 =over 2
2704
2705 =item * field: the name of a SQL column in table items
2706
2707 =item * query: the value to search in this column
2708
2709 =item * operator: comparison operator. Can be one of = != > < >= <= like
2710
2711 =back
2712
2713 A combination of filters hash the following keys:
2714
2715 =over 2
2716
2717 =item * conjunction: 'AND' or 'OR'
2718
2719 =item * filters: array ref of filters
2720
2721 =back
2722
2723 $params is a reference to a hash that can contain the following parameters:
2724
2725 =over 2
2726
2727 =item * rows: Number of items to return. 0 returns everything (default: 0)
2728
2729 =item * page: Page to return (return items from (page-1)*rows to (page*rows)-1)
2730                (default: 1)
2731
2732 =item * sortby: A SQL column name in items table to sort on
2733
2734 =item * sortorder: 'ASC' or 'DESC'
2735
2736 =back
2737
2738 =cut
2739
2740 sub SearchItems {
2741     my ($filter, $params) = @_;
2742
2743     $filter //= {};
2744     $params //= {};
2745     return unless ref $filter eq 'HASH';
2746     return unless ref $params eq 'HASH';
2747
2748     # Default parameters
2749     $params->{rows} ||= 0;
2750     $params->{page} ||= 1;
2751     $params->{sortby} ||= 'itemnumber';
2752     $params->{sortorder} ||= 'ASC';
2753
2754     my ($where_str, @where_args);
2755     my $where_fragment = _SearchItems_build_where_fragment($filter);
2756     if ($where_fragment) {
2757         $where_str = $where_fragment->{str};
2758         @where_args = @{ $where_fragment->{args} };
2759     }
2760
2761     my $dbh = C4::Context->dbh;
2762     my $query = q{
2763         SELECT SQL_CALC_FOUND_ROWS items.*
2764         FROM items
2765           LEFT JOIN biblio ON biblio.biblionumber = items.biblionumber
2766           LEFT JOIN biblioitems ON biblioitems.biblioitemnumber = items.biblioitemnumber
2767     };
2768     if (defined $where_str and $where_str ne '') {
2769         $query .= qq{ WHERE $where_str };
2770     }
2771
2772     my @columns = Koha::Database->new()->schema()->resultset('Item')->result_source->columns;
2773     push @columns, Koha::Database->new()->schema()->resultset('Biblio')->result_source->columns;
2774     push @columns, Koha::Database->new()->schema()->resultset('Biblioitem')->result_source->columns;
2775     my $sortby = (0 < grep {$params->{sortby} eq $_} @columns)
2776         ? $params->{sortby} : 'itemnumber';
2777     my $sortorder = (uc($params->{sortorder}) eq 'ASC') ? 'ASC' : 'DESC';
2778     $query .= qq{ ORDER BY $sortby $sortorder };
2779
2780     my $rows = $params->{rows};
2781     my @limit_args;
2782     if ($rows > 0) {
2783         my $offset = $rows * ($params->{page}-1);
2784         $query .= qq { LIMIT ?, ? };
2785         push @limit_args, $offset, $rows;
2786     }
2787
2788     my $sth = $dbh->prepare($query);
2789     my $rv = $sth->execute(@where_args, @limit_args);
2790
2791     return unless ($rv);
2792     my ($total_rows) = $dbh->selectrow_array(q{ SELECT FOUND_ROWS() });
2793
2794     return ($sth->fetchall_arrayref({}), $total_rows);
2795 }
2796
2797
2798 =head1  OTHER FUNCTIONS
2799
2800 =head2 _find_value
2801
2802   ($indicators, $value) = _find_value($tag, $subfield, $record,$encoding);
2803
2804 Find the given $subfield in the given $tag in the given
2805 MARC::Record $record.  If the subfield is found, returns
2806 the (indicators, value) pair; otherwise, (undef, undef) is
2807 returned.
2808
2809 PROPOSITION :
2810 Such a function is used in addbiblio AND additem and serial-edit and maybe could be used in Authorities.
2811 I suggest we export it from this module.
2812
2813 =cut
2814
2815 sub _find_value {
2816     my ( $tagfield, $insubfield, $record, $encoding ) = @_;
2817     my @result;
2818     my $indicator;
2819     if ( $tagfield < 10 ) {
2820         if ( $record->field($tagfield) ) {
2821             push @result, $record->field($tagfield)->data();
2822         } else {
2823             push @result, "";
2824         }
2825     } else {
2826         foreach my $field ( $record->field($tagfield) ) {
2827             my @subfields = $field->subfields();
2828             foreach my $subfield (@subfields) {
2829                 if ( @$subfield[0] eq $insubfield ) {
2830                     push @result, @$subfield[1];
2831                     $indicator = $field->indicator(1) . $field->indicator(2);
2832                 }
2833             }
2834         }
2835     }
2836     return ( $indicator, @result );
2837 }
2838
2839
2840 =head2 PrepareItemrecordDisplay
2841
2842   PrepareItemrecordDisplay($itemrecord,$bibnum,$itemumber,$frameworkcode);
2843
2844 Returns a hash with all the fields for Display a given item data in a template
2845
2846 The $frameworkcode returns the item for the given frameworkcode, ONLY if bibnum is not provided
2847
2848 =cut
2849
2850 sub PrepareItemrecordDisplay {
2851
2852     my ( $bibnum, $itemnum, $defaultvalues, $frameworkcode ) = @_;
2853
2854     my $dbh = C4::Context->dbh;
2855     $frameworkcode = &GetFrameworkCode($bibnum) if $bibnum;
2856     my ( $itemtagfield, $itemtagsubfield ) = &GetMarcFromKohaField( "items.itemnumber", $frameworkcode );
2857     my $tagslib = &GetMarcStructure( 1, $frameworkcode );
2858
2859     # return nothing if we don't have found an existing framework.
2860     return q{} unless $tagslib;
2861     my $itemrecord;
2862     if ($itemnum) {
2863         $itemrecord = C4::Items::GetMarcItem( $bibnum, $itemnum );
2864     }
2865     my @loop_data;
2866
2867     my $branch_limit = C4::Context->userenv ? C4::Context->userenv->{"branch"} : "";
2868     my $query = qq{
2869         SELECT authorised_value,lib FROM authorised_values
2870     };
2871     $query .= qq{
2872         LEFT JOIN authorised_values_branches ON ( id = av_id )
2873     } if $branch_limit;
2874     $query .= qq{
2875         WHERE category = ?
2876     };
2877     $query .= qq{ AND ( branchcode = ? OR branchcode IS NULL )} if $branch_limit;
2878     $query .= qq{ ORDER BY lib};
2879     my $authorised_values_sth = $dbh->prepare( $query );
2880     foreach my $tag ( sort keys %{$tagslib} ) {
2881         my $previous_tag = '';
2882         if ( $tag ne '' ) {
2883
2884             # loop through each subfield
2885             my $cntsubf;
2886             foreach my $subfield ( sort keys %{ $tagslib->{$tag} } ) {
2887                 next if ( subfield_is_koha_internal_p($subfield) );
2888                 next if ( $tagslib->{$tag}->{$subfield}->{'tab'} ne "10" );
2889                 my %subfield_data;
2890                 $subfield_data{tag}           = $tag;
2891                 $subfield_data{subfield}      = $subfield;
2892                 $subfield_data{countsubfield} = $cntsubf++;
2893                 $subfield_data{kohafield}     = $tagslib->{$tag}->{$subfield}->{'kohafield'};
2894                 $subfield_data{id}            = "tag_".$tag."_subfield_".$subfield."_".int(rand(1000000));
2895
2896                 #        $subfield_data{marc_lib}=$tagslib->{$tag}->{$subfield}->{lib};
2897                 $subfield_data{marc_lib}   = $tagslib->{$tag}->{$subfield}->{lib};
2898                 $subfield_data{mandatory}  = $tagslib->{$tag}->{$subfield}->{mandatory};
2899                 $subfield_data{repeatable} = $tagslib->{$tag}->{$subfield}->{repeatable};
2900                 $subfield_data{hidden}     = "display:none"
2901                   if ( ( $tagslib->{$tag}->{$subfield}->{hidden} > 4 )
2902                     || ( $tagslib->{$tag}->{$subfield}->{hidden} < -4 ) );
2903                 my ( $x, $defaultvalue );
2904                 if ($itemrecord) {
2905                     ( $x, $defaultvalue ) = _find_value( $tag, $subfield, $itemrecord );
2906                 }
2907                 $defaultvalue = $tagslib->{$tag}->{$subfield}->{defaultvalue} unless $defaultvalue;
2908                 if ( !defined $defaultvalue ) {
2909                     $defaultvalue = q||;
2910                 } else {
2911                     $defaultvalue =~ s/"/&quot;/g;
2912                 }
2913
2914                 # search for itemcallnumber if applicable
2915                 if ( $tagslib->{$tag}->{$subfield}->{kohafield} eq 'items.itemcallnumber'
2916                     && C4::Context->preference('itemcallnumber') ) {
2917                     my $CNtag      = substr( C4::Context->preference('itemcallnumber'), 0, 3 );
2918                     my $CNsubfield = substr( C4::Context->preference('itemcallnumber'), 3, 1 );
2919                     if ( $itemrecord and my $field = $itemrecord->field($CNtag) ) {
2920                         $defaultvalue = $field->subfield($CNsubfield);
2921                     }
2922                 }
2923                 if (   $tagslib->{$tag}->{$subfield}->{kohafield} eq 'items.itemcallnumber'
2924                     && $defaultvalues
2925                     && $defaultvalues->{'callnumber'} ) {
2926                     if( $itemrecord and $defaultvalues and not $itemrecord->field($subfield) ){
2927                         # if the item record exists, only use default value if the item has no callnumber
2928                         $defaultvalue = $defaultvalues->{callnumber};
2929                     } elsif ( !$itemrecord and $defaultvalues ) {
2930                         # if the item record *doesn't* exists, always use the default value
2931                         $defaultvalue = $defaultvalues->{callnumber};
2932                     }
2933                 }
2934                 if (   ( $tagslib->{$tag}->{$subfield}->{kohafield} eq 'items.holdingbranch' || $tagslib->{$tag}->{$subfield}->{kohafield} eq 'items.homebranch' )
2935                     && $defaultvalues
2936                     && $defaultvalues->{'branchcode'} ) {
2937                     if ( $itemrecord and $defaultvalues and not $itemrecord->field($subfield) ) {
2938                         $defaultvalue = $defaultvalues->{branchcode};
2939                     }
2940                 }
2941                 if (   ( $tagslib->{$tag}->{$subfield}->{kohafield} eq 'items.location' )
2942                     && $defaultvalues
2943                     && $defaultvalues->{'location'} ) {
2944
2945                     if ( $itemrecord and $defaultvalues and not $itemrecord->field($subfield) ) {
2946                         # if the item record exists, only use default value if the item has no locationr
2947                         $defaultvalue = $defaultvalues->{location};
2948                     } elsif ( !$itemrecord and $defaultvalues ) {
2949                         # if the item record *doesn't* exists, always use the default value
2950                         $defaultvalue = $defaultvalues->{location};
2951                     }
2952                 }
2953                 if ( $tagslib->{$tag}->{$subfield}->{authorised_value} ) {
2954                     my @authorised_values;
2955                     my %authorised_lib;
2956
2957                     # builds list, depending on authorised value...
2958                     #---- branch
2959                     if ( $tagslib->{$tag}->{$subfield}->{'authorised_value'} eq "branches" ) {
2960                         if (   ( C4::Context->preference("IndependentBranches") )
2961                             && !C4::Context->IsSuperLibrarian() ) {
2962                             my $sth = $dbh->prepare( "SELECT branchcode,branchname FROM branches WHERE branchcode = ? ORDER BY branchname" );
2963                             $sth->execute( C4::Context->userenv->{branch} );
2964                             push @authorised_values, ""
2965                               unless ( $tagslib->{$tag}->{$subfield}->{mandatory} );
2966                             while ( my ( $branchcode, $branchname ) = $sth->fetchrow_array ) {
2967                                 push @authorised_values, $branchcode;
2968                                 $authorised_lib{$branchcode} = $branchname;
2969                             }
2970                         } else {
2971                             my $sth = $dbh->prepare( "SELECT branchcode,branchname FROM branches ORDER BY branchname" );
2972                             $sth->execute;
2973                             push @authorised_values, ""
2974                               unless ( $tagslib->{$tag}->{$subfield}->{mandatory} );
2975                             while ( my ( $branchcode, $branchname ) = $sth->fetchrow_array ) {
2976                                 push @authorised_values, $branchcode;
2977                                 $authorised_lib{$branchcode} = $branchname;
2978                             }
2979                         }
2980
2981                         $defaultvalue = C4::Context->userenv ? C4::Context->userenv->{branch} : undef;
2982                         if ( $defaultvalues and $defaultvalues->{branchcode} ) {
2983                             $defaultvalue = $defaultvalues->{branchcode};
2984                         }
2985
2986                         #----- itemtypes
2987                     } elsif ( $tagslib->{$tag}->{$subfield}->{authorised_value} eq "itemtypes" ) {
2988                         my $sth = $dbh->prepare( "SELECT itemtype,description FROM itemtypes ORDER BY description" );
2989                         $sth->execute;
2990                         push @authorised_values, ""
2991                           unless ( $tagslib->{$tag}->{$subfield}->{mandatory} );
2992                         while ( my ( $itemtype, $description ) = $sth->fetchrow_array ) {
2993                             push @authorised_values, $itemtype;
2994                             $authorised_lib{$itemtype} = $description;
2995                         }
2996                         #---- class_sources
2997                     } elsif ( $tagslib->{$tag}->{$subfield}->{authorised_value} eq "cn_source" ) {
2998                         push @authorised_values, "" unless ( $tagslib->{$tag}->{$subfield}->{mandatory} );
2999
3000                         my $class_sources = GetClassSources();
3001                         my $default_source = C4::Context->preference("DefaultClassificationSource");
3002
3003                         foreach my $class_source (sort keys %$class_sources) {
3004                             next unless $class_sources->{$class_source}->{'used'} or
3005                                         ($class_source eq $default_source);
3006                             push @authorised_values, $class_source;
3007                             $authorised_lib{$class_source} = $class_sources->{$class_source}->{'description'};
3008                         }
3009
3010                         $defaultvalue = $default_source;
3011
3012                         #---- "true" authorised value
3013                     } else {
3014                         $authorised_values_sth->execute(
3015                             $tagslib->{$tag}->{$subfield}->{authorised_value},
3016                             $branch_limit ? $branch_limit : ()
3017                         );
3018                         push @authorised_values, ""
3019                           unless ( $tagslib->{$tag}->{$subfield}->{mandatory} );
3020                         while ( my ( $value, $lib ) = $authorised_values_sth->fetchrow_array ) {
3021                             push @authorised_values, $value;
3022                             $authorised_lib{$value} = $lib;
3023                         }
3024                     }
3025                     $subfield_data{marc_value} = {
3026                         type    => 'select',
3027                         values  => \@authorised_values,
3028                         default => "$defaultvalue",
3029                         labels  => \%authorised_lib,
3030                     };
3031                 } elsif ( $tagslib->{$tag}->{$subfield}->{value_builder} ) {
3032                         # opening plugin
3033                         my $plugin = C4::Context->intranetdir . "/cataloguing/value_builder/" . $tagslib->{$tag}->{$subfield}->{'value_builder'};
3034                         if (do $plugin) {
3035                             my $extended_param = plugin_parameters( $dbh, undef, $tagslib, $subfield_data{id}, undef );
3036                             my ( $function_name, $javascript ) = plugin_javascript( $dbh, undef, $tagslib, $subfield_data{id}, undef );
3037                             $subfield_data{random}     = int(rand(1000000));    # why do we need 2 different randoms?
3038                             $subfield_data{marc_value} = qq[<input type="text" tabindex="1" id="$subfield_data{id}" name="field_value" class="input_marceditor" size="50" maxlength="255"
3039                                 onfocus="Focus$function_name($subfield_data{random}, '$subfield_data{id}');"
3040                                  onblur=" Blur$function_name($subfield_data{random}, '$subfield_data{id}');" />
3041                                 <a href="#" class="buttonDot" onclick="Clic$function_name('$subfield_data{id}'); return false;" title="Tag Editor">...</a>
3042                                 $javascript];
3043                         } else {
3044                             warn "Plugin Failed: $plugin";
3045                             $subfield_data{marc_value} = qq(<input type="text" tabindex="1" id="$subfield_data{id}" name="field_value" class="input_marceditor" size="50" maxlength="255" />); # supply default input form
3046                         }
3047                 }
3048                 elsif ( $tag eq '' ) {       # it's an hidden field
3049                     $subfield_data{marc_value} = qq(<input type="hidden" tabindex="1" id="$subfield_data{id}" name="field_value" class="input_marceditor" size="50" maxlength="255" value="$defaultvalue" />);
3050                 }
3051                 elsif ( $tagslib->{$tag}->{$subfield}->{'hidden'} ) {   # FIXME: shouldn't input type be "hidden" ?
3052                     $subfield_data{marc_value} = qq(<input type="text" tabindex="1" id="$subfield_data{id}" name="field_value" class="input_marceditor" size="50" maxlength="255" value="$defaultvalue" />);
3053                 }
3054                 elsif ( length($defaultvalue) > 100
3055                             or (C4::Context->preference("marcflavour") eq "UNIMARC" and
3056                                   300 <= $tag && $tag < 400 && $subfield eq 'a' )
3057                             or (C4::Context->preference("marcflavour") eq "MARC21"  and
3058                                   500 <= $tag && $tag < 600                     )
3059                           ) {
3060                     # oversize field (textarea)
3061                     $subfield_data{marc_value} = qq(<textarea tabindex="1" id="$subfield_data{id}" name="field_value" class="input_marceditor" size="50" maxlength="255">$defaultvalue</textarea>\n");
3062                 } else {
3063                     $subfield_data{marc_value} = "<input type=\"text\" name=\"field_value\" value=\"$defaultvalue\" size=\"50\" maxlength=\"255\" />";
3064                 }
3065                 push( @loop_data, \%subfield_data );
3066             }
3067         }
3068     }
3069     my $itemnumber;
3070     if ( $itemrecord && $itemrecord->field($itemtagfield) ) {
3071         $itemnumber = $itemrecord->subfield( $itemtagfield, $itemtagsubfield );
3072     }
3073     return {
3074         'itemtagfield'    => $itemtagfield,
3075         'itemtagsubfield' => $itemtagsubfield,
3076         'itemnumber'      => $itemnumber,
3077         'iteminformation' => \@loop_data
3078     };
3079 }
3080
3081 1;