C4/Reserves.pm

   1 package C4::Reserves;
   2
   3 # Copyright 2000-2002 Katipo Communications
   4 #           2006 SAN Ouest Provence
   5 #           2007-2010 BibLibre Paul POULAIN
   6 #           2011 Catalyst IT
   7 #
   8 # This file is part of Koha.
   9 #
  10 # Koha is free software; you can redistribute it and/or modify it
  11 # under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 3 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # Koha is distributed in the hope that it will be useful, but
  16 # WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  22
  23
  24 use strict;
  25 #use warnings; FIXME - Bug 2505
  26
  27 use C4::Accounts;
  28 use C4::Biblio;
  29 use C4::Circulation;
  30 use C4::Context;
  31 use C4::Items;
  32 use C4::Letters;
  33 use C4::Log;
  34 use C4::Members::Messaging;
  35 use C4::Members;
  36 use Koha::Account::Lines;
  37 use Koha::Biblios;
  38 use Koha::Calendar;
  39 use Koha::CirculationRules;
  40 use Koha::Database;
  41 use Koha::DateUtils;
  42 use Koha::Hold;
  43 use Koha::Holds;
  44 use Koha::IssuingRules;
  45 use Koha::ItemTypes;
  46 use Koha::Items;
  47 use Koha::Libraries;
  48 use Koha::Old::Hold;
  49 use Koha::Patrons;
  50
  51 use Carp;
  52 use Data::Dumper;
  53 use List::MoreUtils qw( firstidx any );
  54
  55 use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
  56
  57 =head1 NAME
  58
  59 C4::Reserves - Koha functions for dealing with reservation.
  60
  61 =head1 SYNOPSIS
  62
  63   use C4::Reserves;
  64
  65 =head1 DESCRIPTION
  66
  67 This modules provides somes functions to deal with reservations.
  68
  69   Reserves are stored in reserves table.
  70   The following columns contains important values :
  71   - priority >0      : then the reserve is at 1st stage, and not yet affected to any item.
  72              =0      : then the reserve is being dealed
  73   - found : NULL       : means the patron requested the 1st available, and we haven't chosen the item
  74             T(ransit)  : the reserve is linked to an item but is in transit to the pickup branch
  75             W(aiting)  : the reserve is linked to an item, is at the pickup branch, and is waiting on the hold shelf
  76             F(inished) : the reserve has been completed, and is done
  77   - itemnumber : empty : the reserve is still unaffected to an item
  78                  filled: the reserve is attached to an item
  79   The complete workflow is :
  80   ==== 1st use case ====
  81   patron request a document, 1st available :                      P >0, F=NULL, I=NULL
  82   a library having it run "transfertodo", and clic on the list
  83          if there is no transfer to do, the reserve waiting
  84          patron can pick it up                                    P =0, F=W,    I=filled
  85          if there is a transfer to do, write in branchtransfer    P =0, F=T,    I=filled
  86            The pickup library receive the book, it check in       P =0, F=W,    I=filled
  87   The patron borrow the book                                      P =0, F=F,    I=filled
  88
  89   ==== 2nd use case ====
  90   patron requests a document, a given item,
  91     If pickup is holding branch                                   P =0, F=W,   I=filled
  92     If transfer needed, write in branchtransfer                   P =0, F=T,    I=filled
  93         The pickup library receive the book, it checks it in      P =0, F=W,    I=filled
  94   The patron borrow the book                                      P =0, F=F,    I=filled
  95
  96 =head1 FUNCTIONS
  97
  98 =cut
  99
 100 BEGIN {
 101     require Exporter;
 102     @ISA = qw(Exporter);
 103     @EXPORT = qw(
 104         &AddReserve
 105
 106         &GetReserveStatus
 107
 108         &GetOtherReserves
 109
 110         &ModReserveFill
 111         &ModReserveAffect
 112         &ModReserve
 113         &ModReserveStatus
 114         &ModReserveCancelAll
 115         &ModReserveMinusPriority
 116         &MoveReserve
 117
 118         &CheckReserves
 119         &CanBookBeReserved
 120         &CanItemBeReserved
 121         &CanReserveBeCanceledFromOpac
 122         &CancelExpiredReserves
 123
 124         &AutoUnsuspendReserves
 125
 126         &IsAvailableForItemLevelRequest
 127
 128         &AlterPriority
 129         &ToggleLowestPriority
 130
 131         &ReserveSlip
 132         &ToggleSuspend
 133         &SuspendAll
 134
 135         &GetReservesControlBranch
 136
 137         IsItemOnHoldAndFound
 138
 139         GetMaxPatronHoldsForRecord
 140     );
 141     @EXPORT_OK = qw( MergeHolds );
 142 }
 143
 144 =head2 AddReserve
 145
 146     AddReserve($branch,$borrowernumber,$biblionumber,$bibitems,$priority,$resdate,$expdate,$notes,$title,$checkitem,$found)
 147
 148 Adds reserve and generates HOLDPLACED message.
 149
 150 The following tables are available witin the HOLDPLACED message:
 151
 152     branches
 153     borrowers
 154     biblio
 155     biblioitems
 156     items
 157     reserves
 158
 159 =cut
 160
 161 sub AddReserve {
 162     my (
 163         $branch,   $borrowernumber, $biblionumber, $bibitems,
 164         $priority, $resdate,        $expdate,      $notes,
 165         $title,    $checkitem,      $found,        $itemtype
 166     ) = @_;
 167
 168     $resdate = output_pref( { str => dt_from_string( $resdate ), dateonly => 1, dateformat => 'iso' })
 169         or output_pref({ dt => dt_from_string, dateonly => 1, dateformat => 'iso' });
 170
 171     $expdate = output_pref({ str => $expdate, dateonly => 1, dateformat => 'iso' });
 172
 173     # if we have an item selectionned, and the pickup branch is the same as the holdingbranch
 174     # of the document, we force the value $priority and $found .
 175     if ( $checkitem and not C4::Context->preference('ReservesNeedReturns') ) {
 176         $priority = 0;
 177         my $item = Koha::Items->find( $checkitem ); # FIXME Prevent bad calls
 178         if ( $item->holdingbranch eq $branch ) {
 179             $found = 'W';
 180         }
 181     }
 182
 183     if ( C4::Context->preference('AllowHoldDateInFuture') ) {
 184
 185         # Make room in reserves for this before those of a later reserve date
 186         $priority = _ShiftPriorityByDateAndPriority( $biblionumber, $resdate, $priority );
 187     }
 188
 189     my $waitingdate;
 190
 191     # If the reserv had the waiting status, we had the value of the resdate
 192     if ( $found eq 'W' ) {
 193         $waitingdate = $resdate;
 194     }
 195
 196     # Don't add itemtype limit if specific item is selected
 197     $itemtype = undef if $checkitem;
 198
 199     # updates take place here
 200     my $hold = Koha::Hold->new(
 201         {
 202             borrowernumber => $borrowernumber,
 203             biblionumber   => $biblionumber,
 204             reservedate    => $resdate,
 205             branchcode     => $branch,
 206             priority       => $priority,
 207             reservenotes   => $notes,
 208             itemnumber     => $checkitem,
 209             found          => $found,
 210             waitingdate    => $waitingdate,
 211             expirationdate => $expdate,
 212             itemtype       => $itemtype,
 213             item_level_hold => $checkitem ? 1 : 0,
 214         }
 215     )->store();
 216     $hold->set_waiting() if $found eq 'W';
 217
 218     logaction( 'HOLDS', 'CREATE', $hold->id, Dumper($hold->unblessed) )
 219         if C4::Context->preference('HoldsLog');
 220
 221     my $reserve_id = $hold->id();
 222
 223     # add a reserve fee if needed
 224     if ( C4::Context->preference('HoldFeeMode') ne 'any_time_is_collected' ) {
 225         my $reserve_fee = GetReserveFee( $borrowernumber, $biblionumber );
 226         ChargeReserveFee( $borrowernumber, $reserve_fee, $title );
 227     }
 228
 229     _FixPriority({ biblionumber => $biblionumber});
 230
 231     # Send e-mail to librarian if syspref is active
 232     if(C4::Context->preference("emailLibrarianWhenHoldIsPlaced")){
 233         my $patron = Koha::Patrons->find( $borrowernumber );
 234         my $library = $patron->library;
 235         if ( my $letter =  C4::Letters::GetPreparedLetter (
 236             module => 'reserves',
 237             letter_code => 'HOLDPLACED',
 238             branchcode => $branch,
 239             lang => $patron->lang,
 240             tables => {
 241                 'branches'    => $library->unblessed,
 242                 'borrowers'   => $patron->unblessed,
 243                 'biblio'      => $biblionumber,
 244                 'biblioitems' => $biblionumber,
 245                 'items'       => $checkitem,
 246                 'reserves'    => $hold->unblessed,
 247             },
 248         ) ) {
 249
 250             my $admin_email_address = $library->branchemail || C4::Context->preference('KohaAdminEmailAddress');
 251
 252             C4::Letters::EnqueueLetter(
 253                 {   letter                 => $letter,
 254                     borrowernumber         => $borrowernumber,
 255                     message_transport_type => 'email',
 256                     from_address           => $admin_email_address,
 257                     to_address           => $admin_email_address,
 258                 }
 259             );
 260         }
 261     }
 262
 263     return $reserve_id;
 264 }
 265
 266 =head2 CanBookBeReserved
 267
 268   $canReserve = &CanBookBeReserved($borrowernumber, $biblionumber, $branchcode)
 269   if ($canReserve eq 'OK') { #We can reserve this Item! }
 270
 271 See CanItemBeReserved() for possible return values.
 272
 273 =cut
 274
 275 sub CanBookBeReserved{
 276     my ($borrowernumber, $biblionumber, $pickup_branchcode) = @_;
 277
 278     my @itemnumbers = Koha::Items->search({ biblionumber => $biblionumber})->get_column("itemnumber");
 279     #get items linked via host records
 280     my @hostitems = get_hostitemnumbers_of($biblionumber);
 281     if (@hostitems){
 282         push (@itemnumbers, @hostitems);
 283     }
 284
 285     my $canReserve = { status => '' };
 286     foreach my $itemnumber (@itemnumbers) {
 287         $canReserve = CanItemBeReserved( $borrowernumber, $itemnumber, $pickup_branchcode );
 288         return { status => 'OK' } if $canReserve->{status} eq 'OK';
 289     }
 290     return $canReserve;
 291 }
 292
 293 =head2 CanItemBeReserved
 294
 295   $canReserve = &CanItemBeReserved($borrowernumber, $itemnumber, $branchcode)
 296   if ($canReserve->{status} eq 'OK') { #We can reserve this Item! }
 297
 298 @RETURNS { status => OK },              if the Item can be reserved.
 299          { status => ageRestricted },   if the Item is age restricted for this borrower.
 300          { status => damaged },         if the Item is damaged.
 301          { status => cannotReserveFromOtherBranches }, if syspref 'canreservefromotherbranches' is OK.
 302          { status => tooManyReserves, limit => $limit }, if the borrower has exceeded their maximum reserve amount.
 303          { status => notReservable },   if holds on this item are not allowed
 304          { status => libraryNotFound },   if given branchcode is not an existing library
 305          { status => libraryNotPickupLocation },   if given branchcode is not configured to be a pickup location
 306          { status => cannotBeTransferred }, if branch transfer limit applies on given item and branchcode
 307
 308 =cut
 309
 310 sub CanItemBeReserved {
 311     my ( $borrowernumber, $itemnumber, $pickup_branchcode ) = @_;
 312
 313     my $dbh = C4::Context->dbh;
 314     my $ruleitemtype;    # itemtype of the matching issuing rule
 315     my $allowedreserves  = 0; # Total number of holds allowed across all records
 316     my $holds_per_record = 1; # Total number of holds allowed for this one given record
 317     my $holds_per_day;        # Default to unlimited
 318
 319     # we retrieve borrowers and items informations #
 320     # item->{itype} will come for biblioitems if necessery
 321     my $item       = Koha::Items->find($itemnumber);
 322     my $biblio     = $item->biblio;
 323     my $patron = Koha::Patrons->find( $borrowernumber );
 324     my $borrower = $patron->unblessed;
 325
 326     # If an item is damaged and we don't allow holds on damaged items, we can stop right here
 327     return { status =>'damaged' }
 328       if ( $item->damaged
 329         && !C4::Context->preference('AllowHoldsOnDamagedItems') );
 330
 331     # Check for the age restriction
 332     my ( $ageRestriction, $daysToAgeRestriction ) =
 333       C4::Circulation::GetAgeRestriction( $biblio->biblioitem->agerestriction, $borrower );
 334     return { status => 'ageRestricted' } if $daysToAgeRestriction && $daysToAgeRestriction > 0;
 335
 336     # Check that the patron doesn't have an item level hold on this item already
 337     return { status =>'itemAlreadyOnHold' }
 338       if Koha::Holds->search( { borrowernumber => $borrowernumber, itemnumber => $itemnumber } )->count();
 339
 340     my $controlbranch = C4::Context->preference('ReservesControlBranch');
 341
 342     my $querycount = q{
 343         SELECT count(*) AS count
 344           FROM reserves
 345      LEFT JOIN items USING (itemnumber)
 346      LEFT JOIN biblioitems ON (reserves.biblionumber=biblioitems.biblionumber)
 347      LEFT JOIN borrowers USING (borrowernumber)
 348          WHERE borrowernumber = ?
 349     };
 350
 351     my $branchcode  = "";
 352     my $branchfield = "reserves.branchcode";
 353
 354     if ( $controlbranch eq "ItemHomeLibrary" ) {
 355         $branchfield = "items.homebranch";
 356         $branchcode  = $item->homebranch;
 357     }
 358     elsif ( $controlbranch eq "PatronLibrary" ) {
 359         $branchfield = "borrowers.branchcode";
 360         $branchcode  = $borrower->{branchcode};
 361     }
 362
 363     # we retrieve rights
 364     if ( my $rights = GetHoldRule( $borrower->{'categorycode'}, $item->effective_itemtype, $branchcode ) ) {
 365         $ruleitemtype     = $rights->{itemtype};
 366         $allowedreserves  = $rights->{reservesallowed};
 367         $holds_per_record = $rights->{holds_per_record};
 368         $holds_per_day    = $rights->{holds_per_day};
 369     }
 370     else {
 371         $ruleitemtype = '*';
 372     }
 373
 374     my $holds = Koha::Holds->search(
 375         {
 376             borrowernumber => $borrowernumber,
 377             biblionumber   => $item->biblionumber,
 378             found          => undef, # Found holds don't count against a patron's holds limit
 379         }
 380     );
 381     if ( $holds->count() >= $holds_per_record ) {
 382         return { status => "tooManyHoldsForThisRecord", limit => $holds_per_record };
 383     }
 384
 385     my $today_holds = Koha::Holds->search({
 386         borrowernumber => $borrowernumber,
 387         reservedate    => dt_from_string->date
 388     });
 389
 390     if ( defined $holds_per_day &&
 391           (   ( $holds_per_day > 0 && $today_holds->count() >= $holds_per_day )
 392            or ( $holds_per_day == 0 ) )
 393         )  {
 394         return { status => 'tooManyReservesToday', limit => $holds_per_day };
 395     }
 396
 397     # we retrieve count
 398
 399     $querycount .= "AND ( $branchfield = ? OR $branchfield IS NULL )";
 400
 401     # If using item-level itypes, fall back to the record
 402     # level itemtype if the hold has no associated item
 403     $querycount .=
 404       C4::Context->preference('item-level_itypes')
 405       ? " AND COALESCE( items.itype, biblioitems.itemtype ) = ?"
 406       : " AND biblioitems.itemtype = ?"
 407       if ( $ruleitemtype ne "*" );
 408
 409     my $sthcount = $dbh->prepare($querycount);
 410
 411     if ( $ruleitemtype eq "*" ) {
 412         $sthcount->execute( $borrowernumber, $branchcode );
 413     }
 414     else {
 415         $sthcount->execute( $borrowernumber, $branchcode, $ruleitemtype );
 416     }
 417
 418     my $reservecount = "0";
 419     if ( my $rowcount = $sthcount->fetchrow_hashref() ) {
 420         $reservecount = $rowcount->{count};
 421     }
 422
 423     # we check if it's ok or not
 424     if ( $reservecount >= $allowedreserves ) {
 425         return { status => 'tooManyReserves', limit => $allowedreserves };
 426     }
 427
 428     # Now we need to check hold limits by patron category
 429     my $rule = Koha::CirculationRules->get_effective_rule(
 430         {
 431             categorycode => $borrower->{categorycode},
 432             branchcode   => $branchcode,
 433             rule_name    => 'max_holds',
 434         }
 435     );
 436     if ( $rule && defined( $rule->rule_value ) && $rule->rule_value ne '' ) {
 437         my $total_holds_count = Koha::Holds->search(
 438             {
 439                 borrowernumber => $borrower->{borrowernumber}
 440             }
 441         )->count();
 442
 443         return { status => 'tooManyReserves', limit => $rule->rule_value} if $total_holds_count >= $rule->rule_value;
 444     }
 445
 446     my $reserves_control_branch =
 447       GetReservesControlBranch( $item->unblessed(), $borrower );
 448     my $branchitemrule =
 449       C4::Circulation::GetBranchItemRule( $reserves_control_branch, $item->itype ); # FIXME Should not be item->effective_itemtype?
 450
 451     if ( $branchitemrule->{holdallowed} == 0 ) {
 452         return { status => 'notReservable' };
 453     }
 454
 455     if (   $branchitemrule->{holdallowed} == 1
 456         && $borrower->{branchcode} ne $item->homebranch )
 457     {
 458         return { status => 'cannotReserveFromOtherBranches' };
 459     }
 460
 461     # If reservecount is ok, we check item branch if IndependentBranches is ON
 462     # and canreservefromotherbranches is OFF
 463     if ( C4::Context->preference('IndependentBranches')
 464         and !C4::Context->preference('canreservefromotherbranches') )
 465     {
 466         if ( $item->homebranch ne $borrower->{branchcode} ) {
 467             return { status => 'cannotReserveFromOtherBranches' };
 468         }
 469     }
 470
 471     if ($pickup_branchcode) {
 472         my $destination = Koha::Libraries->find({
 473             branchcode => $pickup_branchcode,
 474         });
 475
 476         unless ($destination) {
 477             return { status => 'libraryNotFound' };
 478         }
 479         unless ($destination->pickup_location) {
 480             return { status => 'libraryNotPickupLocation' };
 481         }
 482         unless ($item->can_be_transferred({ to => $destination })) {
 483             return { status => 'cannotBeTransferred' };
 484         }
 485     }
 486
 487     return { status => 'OK' };
 488 }
 489
 490 =head2 CanReserveBeCanceledFromOpac
 491
 492     $number = CanReserveBeCanceledFromOpac($reserve_id, $borrowernumber);
 493
 494     returns 1 if reserve can be cancelled by user from OPAC.
 495     First check if reserve belongs to user, next checks if reserve is not in
 496     transfer or waiting status
 497
 498 =cut
 499
 500 sub CanReserveBeCanceledFromOpac {
 501     my ($reserve_id, $borrowernumber) = @_;
 502
 503     return unless $reserve_id and $borrowernumber;
 504     my $reserve = Koha::Holds->find($reserve_id);
 505
 506     return 0 unless $reserve->borrowernumber == $borrowernumber;
 507     return 0 if ( $reserve->found eq 'W' ) or ( $reserve->found eq 'T' );
 508
 509     return 1;
 510
 511 }
 512
 513 =head2 GetOtherReserves
 514
 515   ($messages,$nextreservinfo)=$GetOtherReserves(itemnumber);
 516
 517 Check queued list of this document and check if this document must be transferred
 518
 519 =cut
 520
 521 sub GetOtherReserves {
 522     my ($itemnumber) = @_;
 523     my $messages;
 524     my $nextreservinfo;
 525     my ( undef, $checkreserves, undef ) = CheckReserves($itemnumber);
 526     if ($checkreserves) {
 527         my $item = Koha::Items->find($itemnumber);
 528         if ( $item->holdingbranch ne $checkreserves->{'branchcode'} ) {
 529             $messages->{'transfert'} = $checkreserves->{'branchcode'};
 530             #minus priorities of others reservs
 531             ModReserveMinusPriority(
 532                 $itemnumber,
 533                 $checkreserves->{'reserve_id'},
 534             );
 535
 536             #launch the subroutine dotransfer
 537             C4::Items::ModItemTransfer(
 538                 $itemnumber,
 539                 $item->holdingbranch,
 540                 $checkreserves->{'branchcode'}
 541               ),
 542               ;
 543         }
 544
 545      #step 2b : case of a reservation on the same branch, set the waiting status
 546         else {
 547             $messages->{'waiting'} = 1;
 548             ModReserveMinusPriority(
 549                 $itemnumber,
 550                 $checkreserves->{'reserve_id'},
 551             );
 552             ModReserveStatus($itemnumber,'W');
 553         }
 554
 555         $nextreservinfo = $checkreserves->{'borrowernumber'};
 556     }
 557
 558     return ( $messages, $nextreservinfo );
 559 }
 560
 561 =head2 ChargeReserveFee
 562
 563     $fee = ChargeReserveFee( $borrowernumber, $fee, $title );
 564
 565     Charge the fee for a reserve (if $fee > 0)
 566
 567 =cut
 568
 569 sub ChargeReserveFee {
 570     my ( $borrowernumber, $fee, $title ) = @_;
 571     return if !$fee || $fee == 0;    # the last test is needed to include 0.00
 572     Koha::Account->new( { patron_id => $borrowernumber } )->add_debit(
 573         {
 574             amount       => $fee,
 575             description  => $title,
 576             note         => undef,
 577             user_id      => C4::Context->userenv ? C4::Context->userenv->{'number'} : undef,
 578             library_id   => C4::Context->userenv ? C4::Context->userenv->{'branch'} : undef,
 579             interface    => C4::Context->interface,
 580             invoice_type => undef,
 581             type         => 'RESERVE',
 582             item_id      => undef
 583         }
 584     );
 585 }
 586
 587 =head2 GetReserveFee
 588
 589     $fee = GetReserveFee( $borrowernumber, $biblionumber );
 590
 591     Calculate the fee for a reserve (if applicable).
 592
 593 =cut
 594
 595 sub GetReserveFee {
 596     my ( $borrowernumber, $biblionumber ) = @_;
 597     my $borquery = qq{
 598 SELECT reservefee FROM borrowers LEFT JOIN categories ON borrowers.categorycode = categories.categorycode WHERE borrowernumber = ?
 599     };
 600     my $issue_qry = qq{
 601 SELECT COUNT(*) FROM items
 602 LEFT JOIN issues USING (itemnumber)
 603 WHERE items.biblionumber=? AND issues.issue_id IS NULL
 604     };
 605     my $holds_qry = qq{
 606 SELECT COUNT(*) FROM reserves WHERE biblionumber=? AND borrowernumber<>?
 607     };
 608
 609     my $dbh = C4::Context->dbh;
 610     my ( $fee ) = $dbh->selectrow_array( $borquery, undef, ($borrowernumber) );
 611     my $hold_fee_mode = C4::Context->preference('HoldFeeMode') || 'not_always';
 612     if( $fee and $fee > 0 and $hold_fee_mode eq 'not_always' ) {
 613         # This is a reconstruction of the old code:
 614         # Compare number of items with items issued, and optionally check holds
 615         # If not all items are issued and there are no holds: charge no fee
 616         # NOTE: Lost, damaged, not-for-loan, etc. are just ignored here
 617         my ( $notissued, $reserved );
 618         ( $notissued ) = $dbh->selectrow_array( $issue_qry, undef,
 619             ( $biblionumber ) );
 620         if( $notissued ) {
 621             ( $reserved ) = $dbh->selectrow_array( $holds_qry, undef,
 622                 ( $biblionumber, $borrowernumber ) );
 623             $fee = 0 if $reserved == 0;
 624         }
 625     }
 626     return $fee;
 627 }
 628
 629 =head2 GetReserveStatus
 630
 631   $reservestatus = GetReserveStatus($itemnumber);
 632
 633 Takes an itemnumber and returns the status of the reserve placed on it.
 634 If several reserves exist, the reserve with the lower priority is given.
 635
 636 =cut
 637
 638 ## FIXME: I don't think this does what it thinks it does.
 639 ## It only ever checks the first reserve result, even though
 640 ## multiple reserves for that bib can have the itemnumber set
 641 ## the sub is only used once in the codebase.
 642 sub GetReserveStatus {
 643     my ($itemnumber) = @_;
 644
 645     my $dbh = C4::Context->dbh;
 646
 647     my ($sth, $found, $priority);
 648     if ( $itemnumber ) {
 649         $sth = $dbh->prepare("SELECT found, priority FROM reserves WHERE itemnumber = ? order by priority LIMIT 1");
 650         $sth->execute($itemnumber);
 651         ($found, $priority) = $sth->fetchrow_array;
 652     }
 653
 654     if(defined $found) {
 655         return 'Waiting'  if $found eq 'W' and $priority == 0;
 656         return 'Finished' if $found eq 'F';
 657     }
 658
 659     return 'Reserved' if $priority > 0;
 660
 661     return ''; # empty string here will remove need for checking undef, or less log lines
 662 }
 663
 664 =head2 CheckReserves
 665
 666   ($status, $matched_reserve, $possible_reserves) = &CheckReserves($itemnumber);
 667   ($status, $matched_reserve, $possible_reserves) = &CheckReserves(undef, $barcode);
 668   ($status, $matched_reserve, $possible_reserves) = &CheckReserves($itemnumber,undef,$lookahead);
 669
 670 Find a book in the reserves.
 671
 672 C<$itemnumber> is the book's item number.
 673 C<$lookahead> is the number of days to look in advance for future reserves.
 674
 675 As I understand it, C<&CheckReserves> looks for the given item in the
 676 reserves. If it is found, that's a match, and C<$status> is set to
 677 C<Waiting>.
 678
 679 Otherwise, it finds the most important item in the reserves with the
 680 same biblio number as this book (I'm not clear on this) and returns it
 681 with C<$status> set to C<Reserved>.
 682
 683 C<&CheckReserves> returns a two-element list:
 684
 685 C<$status> is either C<Waiting>, C<Reserved> (see above), or 0.
 686
 687 C<$reserve> is the reserve item that matched. It is a
 688 reference-to-hash whose keys are mostly the fields of the reserves
 689 table in the Koha database.
 690
 691 =cut
 692
 693 sub CheckReserves {
 694     my ( $item, $barcode, $lookahead_days, $ignore_borrowers) = @_;
 695     my $dbh = C4::Context->dbh;
 696     my $sth;
 697     my $select;
 698     if (C4::Context->preference('item-level_itypes')){
 699         $select = "
 700            SELECT items.biblionumber,
 701            items.biblioitemnumber,
 702            itemtypes.notforloan,
 703            items.notforloan AS itemnotforloan,
 704            items.itemnumber,
 705            items.damaged,
 706            items.homebranch,
 707            items.holdingbranch
 708            FROM   items
 709            LEFT JOIN biblioitems ON items.biblioitemnumber = biblioitems.biblioitemnumber
 710            LEFT JOIN itemtypes   ON items.itype   = itemtypes.itemtype
 711         ";
 712     }
 713     else {
 714         $select = "
 715            SELECT items.biblionumber,
 716            items.biblioitemnumber,
 717            itemtypes.notforloan,
 718            items.notforloan AS itemnotforloan,
 719            items.itemnumber,
 720            items.damaged,
 721            items.homebranch,
 722            items.holdingbranch
 723            FROM   items
 724            LEFT JOIN biblioitems ON items.biblioitemnumber = biblioitems.biblioitemnumber
 725            LEFT JOIN itemtypes   ON biblioitems.itemtype   = itemtypes.itemtype
 726         ";
 727     }
 728
 729     if ($item) {
 730         $sth = $dbh->prepare("$select WHERE itemnumber = ?");
 731         $sth->execute($item);
 732     }
 733     else {
 734         $sth = $dbh->prepare("$select WHERE barcode = ?");
 735         $sth->execute($barcode);
 736     }
 737     # note: we get the itemnumber because we might have started w/ just the barcode.  Now we know for sure we have it.
 738     my ( $biblio, $bibitem, $notforloan_per_itemtype, $notforloan_per_item, $itemnumber, $damaged, $item_homebranch, $item_holdingbranch ) = $sth->fetchrow_array;
 739     return if ( $damaged && !C4::Context->preference('AllowHoldsOnDamagedItems') );
 740
 741     return unless $itemnumber; # bail if we got nothing.
 742     # if item is not for loan it cannot be reserved either.....
 743     # except where items.notforloan < 0 :  This indicates the item is holdable.
 744     return if  ( $notforloan_per_item > 0 ) or $notforloan_per_itemtype;
 745
 746     # Find this item in the reserves
 747     my @reserves = _Findgroupreserve( $bibitem, $biblio, $itemnumber, $lookahead_days, $ignore_borrowers);
 748
 749     # $priority and $highest are used to find the most important item
 750     # in the list returned by &_Findgroupreserve. (The lower $priority,
 751     # the more important the item.)
 752     # $highest is the most important item we've seen so far.
 753     my $highest;
 754     if (scalar @reserves) {
 755         my $LocalHoldsPriority = C4::Context->preference('LocalHoldsPriority');
 756         my $LocalHoldsPriorityPatronControl = C4::Context->preference('LocalHoldsPriorityPatronControl');
 757         my $LocalHoldsPriorityItemControl = C4::Context->preference('LocalHoldsPriorityItemControl');
 758
 759         my $priority = 10000000;
 760         foreach my $res (@reserves) {
 761             if ( $res->{'itemnumber'} == $itemnumber && $res->{'priority'} == 0) {
 762                 if ($res->{'found'} eq 'W') {
 763                     return ( "Waiting", $res, \@reserves ); # Found it, it is waiting
 764                 } else {
 765                     return ( "Reserved", $res, \@reserves ); # Found determinated hold, e. g. the tranferred one
 766                 }
 767             } else {
 768                 my $patron;
 769                 my $item;
 770                 my $local_hold_match;
 771
 772                 if ($LocalHoldsPriority) {
 773                     $patron = Koha::Patrons->find( $res->{borrowernumber} );
 774                     $item = Koha::Items->find($itemnumber);
 775
 776                     my $local_holds_priority_item_branchcode =
 777                       $item->$LocalHoldsPriorityItemControl;
 778                     my $local_holds_priority_patron_branchcode =
 779                       ( $LocalHoldsPriorityPatronControl eq 'PickupLibrary' )
 780                       ? $res->{branchcode}
 781                       : ( $LocalHoldsPriorityPatronControl eq 'HomeLibrary' )
 782                       ? $patron->branchcode
 783                       : undef;
 784                     $local_hold_match =
 785                       $local_holds_priority_item_branchcode eq
 786                       $local_holds_priority_patron_branchcode;
 787                 }
 788
 789                 # See if this item is more important than what we've got so far
 790                 if ( ( $res->{'priority'} && $res->{'priority'} < $priority ) || $local_hold_match ) {
 791                     $item ||= Koha::Items->find($itemnumber);
 792                     next if $res->{itemtype} && $res->{itemtype} ne $item->effective_itemtype;
 793                     $patron ||= Koha::Patrons->find( $res->{borrowernumber} );
 794                     my $branch = GetReservesControlBranch( $item->unblessed, $patron->unblessed );
 795                     my $branchitemrule = C4::Circulation::GetBranchItemRule($branch,$item->effective_itemtype);
 796                     next if ($branchitemrule->{'holdallowed'} == 0);
 797                     next if (($branchitemrule->{'holdallowed'} == 1) && ($branch ne $patron->branchcode));
 798                     my $hold_fulfillment_policy = $branchitemrule->{hold_fulfillment_policy};
 799                     next if ( ($branchitemrule->{hold_fulfillment_policy} ne 'any') && ($res->{branchcode} ne $item->$hold_fulfillment_policy) );
 800                     next unless $item->can_be_transferred( { to => scalar Koha::Libraries->find( $res->{branchcode} ) } );
 801                     $priority = $res->{'priority'};
 802                     $highest  = $res;
 803                     last if $local_hold_match;
 804                 }
 805             }
 806         }
 807     }
 808
 809     # If we get this far, then no exact match was found.
 810     # We return the most important (i.e. next) reservation.
 811     if ($highest) {
 812         $highest->{'itemnumber'} = $item;
 813         return ( "Reserved", $highest, \@reserves );
 814     }
 815
 816     return ( '' );
 817 }
 818
 819 =head2 CancelExpiredReserves
 820
 821   CancelExpiredReserves();
 822
 823 Cancels all reserves with an expiration date from before today.
 824
 825 =cut
 826
 827 sub CancelExpiredReserves {
 828     my $today = dt_from_string();
 829     my $cancel_on_holidays = C4::Context->preference('ExpireReservesOnHolidays');
 830     my $expireWaiting = C4::Context->preference('ExpireReservesMaxPickUpDelay');
 831
 832     my $dtf = Koha::Database->new->schema->storage->datetime_parser;
 833     my $params = { expirationdate => { '<', $dtf->format_date($today) } };
 834     $params->{found} = [ { '!=', 'W' }, undef ]  unless $expireWaiting;
 835
 836     # FIXME To move to Koha::Holds->search_expired (?)
 837     my $holds = Koha::Holds->search( $params );
 838
 839     while ( my $hold = $holds->next ) {
 840         my $calendar = Koha::Calendar->new( branchcode => $hold->branchcode );
 841
 842         next if !$cancel_on_holidays && $calendar->is_holiday( $today );
 843
 844         my $cancel_params = {};
 845         if ( $hold->found eq 'W' ) {
 846             $cancel_params->{charge_cancel_fee} = 1;
 847         }
 848         $hold->cancel( $cancel_params );
 849     }
 850 }
 851
 852 =head2 AutoUnsuspendReserves
 853
 854   AutoUnsuspendReserves();
 855
 856 Unsuspends all suspended reserves with a suspend_until date from before today.
 857
 858 =cut
 859
 860 sub AutoUnsuspendReserves {
 861     my $today = dt_from_string();
 862
 863     my @holds = Koha::Holds->search( { suspend_until => { '<=' => $today->ymd() } } );
 864
 865     map { $_->resume() } @holds;
 866 }
 867
 868 =head2 ModReserve
 869
 870   ModReserve({ rank => $rank,
 871                reserve_id => $reserve_id,
 872                branchcode => $branchcode
 873                [, itemnumber => $itemnumber ]
 874                [, biblionumber => $biblionumber, $borrowernumber => $borrowernumber ]
 875               });
 876
 877 Change a hold request's priority or cancel it.
 878
 879 C<$rank> specifies the effect of the change.  If C<$rank>
 880 is 'W' or 'n', nothing happens.  This corresponds to leaving a
 881 request alone when changing its priority in the holds queue
 882 for a bib.
 883
 884 If C<$rank> is 'del', the hold request is cancelled.
 885
 886 If C<$rank> is an integer greater than zero, the priority of
 887 the request is set to that value.  Since priority != 0 means
 888 that the item is not waiting on the hold shelf, setting the
 889 priority to a non-zero value also sets the request's found
 890 status and waiting date to NULL.
 891
 892 The optional C<$itemnumber> parameter is used only when
 893 C<$rank> is a non-zero integer; if supplied, the itemnumber
 894 of the hold request is set accordingly; if omitted, the itemnumber
 895 is cleared.
 896
 897 B<FIXME:> Note that the forgoing can have the effect of causing
 898 item-level hold requests to turn into title-level requests.  This
 899 will be fixed once reserves has separate columns for requested
 900 itemnumber and supplying itemnumber.
 901
 902 =cut
 903
 904 sub ModReserve {
 905     my ( $params ) = @_;
 906
 907     my $rank = $params->{'rank'};
 908     my $reserve_id = $params->{'reserve_id'};
 909     my $branchcode = $params->{'branchcode'};
 910     my $itemnumber = $params->{'itemnumber'};
 911     my $suspend_until = $params->{'suspend_until'};
 912     my $borrowernumber = $params->{'borrowernumber'};
 913     my $biblionumber = $params->{'biblionumber'};
 914
 915     return if $rank eq "W";
 916     return if $rank eq "n";
 917
 918     return unless ( $reserve_id || ( $borrowernumber && ( $biblionumber || $itemnumber ) ) );
 919
 920     my $hold;
 921     unless ( $reserve_id ) {
 922         my $holds = Koha::Holds->search({ biblionumber => $biblionumber, borrowernumber => $borrowernumber, itemnumber => $itemnumber });
 923         return unless $holds->count; # FIXME Should raise an exception
 924         $hold = $holds->next;
 925         $reserve_id = $hold->reserve_id;
 926     }
 927
 928     $hold ||= Koha::Holds->find($reserve_id);
 929
 930     if ( $rank eq "del" ) {
 931         $hold->cancel;
 932     }
 933     elsif ($rank =~ /^\d+/ and $rank > 0) {
 934         logaction( 'HOLDS', 'MODIFY', $hold->reserve_id, Dumper($hold->unblessed) )
 935             if C4::Context->preference('HoldsLog');
 936
 937         my $properties = {
 938             priority    => $rank,
 939             branchcode  => $branchcode,
 940             itemnumber  => $itemnumber,
 941             found       => undef,
 942             waitingdate => undef
 943         };
 944         if (exists $params->{reservedate}) {
 945             $properties->{reservedate} = $params->{reservedate} || undef;
 946         }
 947         if (exists $params->{expirationdate}) {
 948             $properties->{expirationdate} = $params->{expirationdate} || undef;
 949         }
 950
 951         $hold->set($properties)->store();
 952
 953         if ( defined( $suspend_until ) ) {
 954             if ( $suspend_until ) {
 955                 $suspend_until = eval { dt_from_string( $suspend_until ) };
 956                 $hold->suspend_hold( $suspend_until );
 957             } else {
 958                 # If the hold is suspended leave the hold suspended, but convert it to an indefinite hold.
 959                 # If the hold is not suspended, this does nothing.
 960                 $hold->set( { suspend_until => undef } )->store();
 961             }
 962         }
 963
 964         _FixPriority({ reserve_id => $reserve_id, rank =>$rank });
 965     }
 966 }
 967
 968 =head2 ModReserveFill
 969
 970   &ModReserveFill($reserve);
 971
 972 Fill a reserve. If I understand this correctly, this means that the
 973 reserved book has been found and given to the patron who reserved it.
 974
 975 C<$reserve> specifies the reserve to fill. It is a reference-to-hash
 976 whose keys are fields from the reserves table in the Koha database.
 977
 978 =cut
 979
 980 sub ModReserveFill {
 981     my ($res) = @_;
 982     my $reserve_id = $res->{'reserve_id'};
 983
 984     my $hold = Koha::Holds->find($reserve_id);
 985     # get the priority on this record....
 986     my $priority = $hold->priority;
 987
 988     # update the hold statuses, no need to store it though, we will be deleting it anyway
 989     $hold->set(
 990         {
 991             found    => 'F',
 992             priority => 0,
 993         }
 994     );
 995
 996     # FIXME Must call Koha::Hold->cancel ? => No, should call ->filled and add the correct log
 997     Koha::Old::Hold->new( $hold->unblessed() )->store();
 998
 999     $hold->delete();
1000
1001     if ( C4::Context->preference('HoldFeeMode') eq 'any_time_is_collected' ) {
1002         my $reserve_fee = GetReserveFee( $hold->borrowernumber, $hold->biblionumber );
1003         ChargeReserveFee( $hold->borrowernumber, $reserve_fee, $hold->biblio->title );
1004     }
1005
1006     # now fix the priority on the others (if the priority wasn't
1007     # already sorted!)....
1008     unless ( $priority == 0 ) {
1009         _FixPriority( { reserve_id => $reserve_id, biblionumber => $hold->biblionumber } );
1010     }
1011 }
1012
1013 =head2 ModReserveStatus
1014
1015   &ModReserveStatus($itemnumber, $newstatus);
1016
1017 Update the reserve status for the active (priority=0) reserve.
1018
1019 $itemnumber is the itemnumber the reserve is on
1020
1021 $newstatus is the new status.
1022
1023 =cut
1024
1025 sub ModReserveStatus {
1026
1027     #first : check if we have a reservation for this item .
1028     my ($itemnumber, $newstatus) = @_;
1029     my $dbh = C4::Context->dbh;
1030
1031     my $query = "UPDATE reserves SET found = ?, waitingdate = NOW() WHERE itemnumber = ? AND found IS NULL AND priority = 0";
1032     my $sth_set = $dbh->prepare($query);
1033     $sth_set->execute( $newstatus, $itemnumber );
1034
1035     my $item = Koha::Items->find($itemnumber);
1036     if ( ( $item->location eq 'CART' && $item->permanent_location ne 'CART'  ) && $newstatus ) {
1037       CartToShelf( $itemnumber );
1038     }
1039 }
1040
1041 =head2 ModReserveAffect
1042
1043   &ModReserveAffect($itemnumber,$borrowernumber,$diffBranchSend,$reserve_id);
1044
1045 This function affect an item and a status for a given reserve, either fetched directly
1046 by record_id, or by borrowernumber and itemnumber or biblionumber. If only biblionumber
1047 is given, only first reserve returned is affected, which is ok for anything but
1048 multi-item holds.
1049
1050 if $transferToDo is not set, then the status is set to "Waiting" as well.
1051 otherwise, a transfer is on the way, and the end of the transfer will
1052 take care of the waiting status
1053
1054 =cut
1055
1056 sub ModReserveAffect {
1057     my ( $itemnumber, $borrowernumber, $transferToDo, $reserve_id ) = @_;
1058     my $dbh = C4::Context->dbh;
1059
1060     # we want to attach $itemnumber to $borrowernumber, find the biblionumber
1061     # attached to $itemnumber
1062     my $sth = $dbh->prepare("SELECT biblionumber FROM items WHERE itemnumber=?");
1063     $sth->execute($itemnumber);
1064     my ($biblionumber) = $sth->fetchrow;
1065
1066     # get request - need to find out if item is already
1067     # waiting in order to not send duplicate hold filled notifications
1068
1069     my $hold;
1070     # Find hold by id if we have it
1071     $hold = Koha::Holds->find( $reserve_id ) if $reserve_id;
1072     # Find item level hold for this item if there is one
1073     $hold ||= Koha::Holds->search( { borrowernumber => $borrowernumber, itemnumber => $itemnumber } )->next();
1074     # Find record level hold if there is no item level hold
1075     $hold ||= Koha::Holds->search( { borrowernumber => $borrowernumber, biblionumber => $biblionumber } )->next();
1076
1077     return unless $hold;
1078
1079     my $already_on_shelf = $hold->found && $hold->found eq 'W';
1080
1081     $hold->itemnumber($itemnumber);
1082     $hold->set_waiting($transferToDo);
1083
1084     _koha_notify_reserve( $hold->reserve_id )
1085       if ( !$transferToDo && !$already_on_shelf );
1086
1087     _FixPriority( { biblionumber => $biblionumber } );
1088     my $item = Koha::Items->find($itemnumber);
1089     if ( ( $item->location eq 'CART' && $item->permanent_location ne 'CART'  ) ) {
1090       CartToShelf( $itemnumber );
1091     }
1092
1093     return;
1094 }
1095
1096 =head2 ModReserveCancelAll
1097
1098   ($messages,$nextreservinfo) = &ModReserveCancelAll($itemnumber,$borrowernumber);
1099
1100 function to cancel reserv,check other reserves, and transfer document if it's necessary
1101
1102 =cut
1103
1104 sub ModReserveCancelAll {
1105     my $messages;
1106     my $nextreservinfo;
1107     my ( $itemnumber, $borrowernumber ) = @_;
1108
1109     #step 1 : cancel the reservation
1110     my $holds = Koha::Holds->search({ itemnumber => $itemnumber, borrowernumber => $borrowernumber });
1111     return unless $holds->count;
1112     $holds->next->cancel;
1113
1114     #step 2 launch the subroutine of the others reserves
1115     ( $messages, $nextreservinfo ) = GetOtherReserves($itemnumber);
1116
1117     return ( $messages, $nextreservinfo );
1118 }
1119
1120 =head2 ModReserveMinusPriority
1121
1122   &ModReserveMinusPriority($itemnumber,$borrowernumber,$biblionumber)
1123
1124 Reduce the values of queued list
1125
1126 =cut
1127
1128 sub ModReserveMinusPriority {
1129     my ( $itemnumber, $reserve_id ) = @_;
1130
1131     #first step update the value of the first person on reserv
1132     my $dbh   = C4::Context->dbh;
1133     my $query = "
1134         UPDATE reserves
1135         SET    priority = 0 , itemnumber = ?
1136         WHERE  reserve_id = ?
1137     ";
1138     my $sth_upd = $dbh->prepare($query);
1139     $sth_upd->execute( $itemnumber, $reserve_id );
1140     # second step update all others reserves
1141     _FixPriority({ reserve_id => $reserve_id, rank => '0' });
1142 }
1143
1144 =head2 IsAvailableForItemLevelRequest
1145
1146   my $is_available = IsAvailableForItemLevelRequest( $item_record, $borrower_record, $pickup_branchcode );
1147
1148 Checks whether a given item record is available for an
1149 item-level hold request.  An item is available if
1150
1151 * it is not lost AND
1152 * it is not damaged AND
1153 * it is not withdrawn AND
1154 * a waiting or in transit reserve is placed on
1155 * does not have a not for loan value > 0
1156
1157 Need to check the issuingrules onshelfholds column,
1158 if this is set items on the shelf can be placed on hold
1159
1160 Note that IsAvailableForItemLevelRequest() does not
1161 check if the staff operator is authorized to place
1162 a request on the item - in particular,
1163 this routine does not check IndependentBranches
1164 and canreservefromotherbranches.
1165
1166 =cut
1167
1168 sub IsAvailableForItemLevelRequest {
1169     my ( $item, $patron, $pickup_branchcode ) = @_;
1170
1171     my $dbh = C4::Context->dbh;
1172     # must check the notforloan setting of the itemtype
1173     # FIXME - a lot of places in the code do this
1174     #         or something similar - need to be
1175     #         consolidated
1176     my $itemtype = $item->effective_itemtype;
1177     my $notforloan_per_itemtype = Koha::ItemTypes->find($itemtype)->notforloan;
1178
1179     return 0 if
1180         $notforloan_per_itemtype ||
1181         $item->itemlost        ||
1182         $item->notforloan > 0  ||
1183         $item->withdrawn        ||
1184         ($item->damaged && !C4::Context->preference('AllowHoldsOnDamagedItems'));
1185
1186     my $on_shelf_holds = Koha::IssuingRules->get_onshelfholds_policy( { item => $item, patron => $patron } );
1187
1188     if ($pickup_branchcode) {
1189         my $destination = Koha::Libraries->find($pickup_branchcode);
1190         return 0 unless $destination;
1191         return 0 unless $destination->pickup_location;
1192         return 0 unless $item->can_be_transferred( { to => $destination } );
1193     }
1194
1195     if ( $on_shelf_holds == 1 ) {
1196         return 1;
1197     } elsif ( $on_shelf_holds == 2 ) {
1198         my @items =
1199           Koha::Items->search( { biblionumber => $item->biblionumber } );
1200
1201         my $any_available = 0;
1202
1203         foreach my $i (@items) {
1204             my $reserves_control_branch = GetReservesControlBranch( $i->unblessed(), $patron->unblessed );
1205             my $branchitemrule = C4::Circulation::GetBranchItemRule( $reserves_control_branch, $i->itype );
1206
1207             $any_available = 1
1208               unless $i->itemlost
1209               || $i->notforloan > 0
1210               || $i->withdrawn
1211               || $i->onloan
1212               || IsItemOnHoldAndFound( $i->id )
1213               || ( $i->damaged
1214                 && !C4::Context->preference('AllowHoldsOnDamagedItems') )
1215               || Koha::ItemTypes->find( $i->effective_itemtype() )->notforloan
1216               || $branchitemrule->{holdallowed} == 1 && $patron->branchcode ne $i->homebranch;
1217         }
1218
1219         return $any_available ? 0 : 1;
1220     } else { # on_shelf_holds == 0 "If any unavailable" (the description is rather cryptic and could still be improved)
1221         return $item->onloan || IsItemOnHoldAndFound( $item->itemnumber );
1222     }
1223 }
1224
1225 sub _get_itype {
1226     my $item = shift;
1227
1228     my $itype;
1229     if (C4::Context->preference('item-level_itypes')) {
1230         # We can't trust GetItem to honour the syspref, so safest to do it ourselves
1231         # When GetItem is fixed, we can remove this
1232         $itype = $item->{itype};
1233     }
1234     else {
1235         # XXX This is a bit dodgy. It relies on biblio itemtype column having different name.
1236         # So if we already have a biblioitems join when calling this function,
1237         # we don't need to access the database again
1238         $itype = $item->{itemtype};
1239     }
1240     unless ($itype) {
1241         my $dbh = C4::Context->dbh;
1242         my $query = "SELECT itemtype FROM biblioitems WHERE biblioitemnumber = ? ";
1243         my $sth = $dbh->prepare($query);
1244         $sth->execute($item->{biblioitemnumber});
1245         if (my $data = $sth->fetchrow_hashref()){
1246             $itype = $data->{itemtype};
1247         }
1248     }
1249     return $itype;
1250 }
1251
1252 =head2 AlterPriority
1253
1254   AlterPriority( $where, $reserve_id, $prev_priority, $next_priority, $first_priority, $last_priority );
1255
1256 This function changes a reserve's priority up, down, to the top, or to the bottom.
1257 Input: $where is 'up', 'down', 'top' or 'bottom'. Biblionumber, Date reserve was placed
1258
1259 =cut
1260
1261 sub AlterPriority {
1262     my ( $where, $reserve_id, $prev_priority, $next_priority, $first_priority, $last_priority ) = @_;
1263
1264     my $hold = Koha::Holds->find( $reserve_id );
1265     return unless $hold;
1266
1267     if ( $hold->cancellationdate ) {
1268         warn "I cannot alter the priority for reserve_id $reserve_id, the reserve has been cancelled (" . $hold->cancellationdate . ')';
1269         return;
1270     }
1271
1272     if ( $where eq 'up' ) {
1273       return unless $prev_priority;
1274       _FixPriority({ reserve_id => $reserve_id, rank => $prev_priority })
1275     } elsif ( $where eq 'down' ) {
1276       return unless $next_priority;
1277       _FixPriority({ reserve_id => $reserve_id, rank => $next_priority })
1278     } elsif ( $where eq 'top' ) {
1279       _FixPriority({ reserve_id => $reserve_id, rank => $first_priority })
1280     } elsif ( $where eq 'bottom' ) {
1281       _FixPriority({ reserve_id => $reserve_id, rank => $last_priority });
1282     }
1283
1284     # FIXME Should return the new priority
1285 }
1286
1287 =head2 ToggleLowestPriority
1288
1289   ToggleLowestPriority( $borrowernumber, $biblionumber );
1290
1291 This function sets the lowestPriority field to true if is false, and false if it is true.
1292
1293 =cut
1294
1295 sub ToggleLowestPriority {
1296     my ( $reserve_id ) = @_;
1297
1298     my $dbh = C4::Context->dbh;
1299
1300     my $sth = $dbh->prepare( "UPDATE reserves SET lowestPriority = NOT lowestPriority WHERE reserve_id = ?");
1301     $sth->execute( $reserve_id );
1302
1303     _FixPriority({ reserve_id => $reserve_id, rank => '999999' });
1304 }
1305
1306 =head2 ToggleSuspend
1307
1308   ToggleSuspend( $reserve_id );
1309
1310 This function sets the suspend field to true if is false, and false if it is true.
1311 If the reserve is currently suspended with a suspend_until date, that date will
1312 be cleared when it is unsuspended.
1313
1314 =cut
1315
1316 sub ToggleSuspend {
1317     my ( $reserve_id, $suspend_until ) = @_;
1318
1319     $suspend_until = dt_from_string($suspend_until) if ($suspend_until);
1320
1321     my $hold = Koha::Holds->find( $reserve_id );
1322
1323     if ( $hold->is_suspended ) {
1324         $hold->resume()
1325     } else {
1326         $hold->suspend_hold( $suspend_until );
1327     }
1328 }
1329
1330 =head2 SuspendAll
1331
1332   SuspendAll(
1333       borrowernumber   => $borrowernumber,
1334       [ biblionumber   => $biblionumber, ]
1335       [ suspend_until  => $suspend_until, ]
1336       [ suspend        => $suspend ]
1337   );
1338
1339   This function accepts a set of hash keys as its parameters.
1340   It requires either borrowernumber or biblionumber, or both.
1341
1342   suspend_until is wholly optional.
1343
1344 =cut
1345
1346 sub SuspendAll {
1347     my %params = @_;
1348
1349     my $borrowernumber = $params{'borrowernumber'} || undef;
1350     my $biblionumber   = $params{'biblionumber'}   || undef;
1351     my $suspend_until  = $params{'suspend_until'}  || undef;
1352     my $suspend = defined( $params{'suspend'} ) ? $params{'suspend'} : 1;
1353
1354     $suspend_until = eval { dt_from_string($suspend_until) }
1355       if ( defined($suspend_until) );
1356
1357     return unless ( $borrowernumber || $biblionumber );
1358
1359     my $params;
1360     $params->{found}          = undef;
1361     $params->{borrowernumber} = $borrowernumber if $borrowernumber;
1362     $params->{biblionumber}   = $biblionumber if $biblionumber;
1363
1364     my @holds = Koha::Holds->search($params);
1365
1366     if ($suspend) {
1367         map { $_->suspend_hold($suspend_until) } @holds;
1368     }
1369     else {
1370         map { $_->resume() } @holds;
1371     }
1372 }
1373
1374
1375 =head2 _FixPriority
1376
1377   _FixPriority({
1378     reserve_id => $reserve_id,
1379     [rank => $rank,]
1380     [ignoreSetLowestRank => $ignoreSetLowestRank]
1381   });
1382
1383   or
1384
1385   _FixPriority({ biblionumber => $biblionumber});
1386
1387 This routine adjusts the priority of a hold request and holds
1388 on the same bib.
1389
1390 In the first form, where a reserve_id is passed, the priority of the
1391 hold is set to supplied rank, and other holds for that bib are adjusted
1392 accordingly.  If the rank is "del", the hold is cancelled.  If no rank
1393 is supplied, all of the holds on that bib have their priority adjusted
1394 as if the second form had been used.
1395
1396 In the second form, where a biblionumber is passed, the holds on that
1397 bib (that are not captured) are sorted in order of increasing priority,
1398 then have reserves.priority set so that the first non-captured hold
1399 has its priority set to 1, the second non-captured hold has its priority
1400 set to 2, and so forth.
1401
1402 In both cases, holds that have the lowestPriority flag on are have their
1403 priority adjusted to ensure that they remain at the end of the line.
1404
1405 Note that the ignoreSetLowestRank parameter is meant to be used only
1406 when _FixPriority calls itself.
1407
1408 =cut
1409
1410 sub _FixPriority {
1411     my ( $params ) = @_;
1412     my $reserve_id = $params->{reserve_id};
1413     my $rank = $params->{rank} // '';
1414     my $ignoreSetLowestRank = $params->{ignoreSetLowestRank};
1415     my $biblionumber = $params->{biblionumber};
1416
1417     my $dbh = C4::Context->dbh;
1418
1419     my $hold;
1420     if ( $reserve_id ) {
1421         $hold = Koha::Holds->find( $reserve_id );
1422         return unless $hold;
1423     }
1424
1425     unless ( $biblionumber ) { # FIXME This is a very weird API
1426         $biblionumber = $hold->biblionumber;
1427     }
1428
1429     if ( $rank eq "del" ) { # FIXME will crash if called without $hold
1430         $hold->cancel;
1431     }
1432     elsif ( $rank eq "W" || $rank eq "0" ) {
1433
1434         # make sure priority for waiting or in-transit items is 0
1435         my $query = "
1436             UPDATE reserves
1437             SET    priority = 0
1438             WHERE reserve_id = ?
1439             AND found IN ('W', 'T')
1440         ";
1441         my $sth = $dbh->prepare($query);
1442         $sth->execute( $reserve_id );
1443     }
1444     my @priority;
1445
1446     # get whats left
1447     my $query = "
1448         SELECT reserve_id, borrowernumber, reservedate
1449         FROM   reserves
1450         WHERE  biblionumber   = ?
1451           AND  ((found <> 'W' AND found <> 'T') OR found IS NULL)
1452         ORDER BY priority ASC
1453     ";
1454     my $sth = $dbh->prepare($query);
1455     $sth->execute( $biblionumber );
1456     while ( my $line = $sth->fetchrow_hashref ) {
1457         push( @priority,     $line );
1458     }
1459
1460     # To find the matching index
1461     my $i;
1462     my $key = -1;    # to allow for 0 to be a valid result
1463     for ( $i = 0 ; $i < @priority ; $i++ ) {
1464         if ( $reserve_id == $priority[$i]->{'reserve_id'} ) {
1465             $key = $i;    # save the index
1466             last;
1467         }
1468     }
1469
1470     # if index exists in array then move it to new position
1471     if ( $key > -1 && $rank ne 'del' && $rank > 0 ) {
1472         my $new_rank = $rank -
1473           1;    # $new_rank is what you want the new index to be in the array
1474         my $moving_item = splice( @priority, $key, 1 );
1475         splice( @priority, $new_rank, 0, $moving_item );
1476     }
1477
1478     # now fix the priority on those that are left....
1479     $query = "
1480         UPDATE reserves
1481         SET    priority = ?
1482         WHERE  reserve_id = ?
1483     ";
1484     $sth = $dbh->prepare($query);
1485     for ( my $j = 0 ; $j < @priority ; $j++ ) {
1486         $sth->execute(
1487             $j + 1,
1488             $priority[$j]->{'reserve_id'}
1489         );
1490     }
1491
1492     $sth = $dbh->prepare( "SELECT reserve_id FROM reserves WHERE lowestPriority = 1 ORDER BY priority" );
1493     $sth->execute();
1494
1495     unless ( $ignoreSetLowestRank ) {
1496       while ( my $res = $sth->fetchrow_hashref() ) {
1497         _FixPriority({
1498             reserve_id => $res->{'reserve_id'},
1499             rank => '999999',
1500             ignoreSetLowestRank => 1
1501         });
1502       }
1503     }
1504 }
1505
1506 =head2 _Findgroupreserve
1507
1508   @results = &_Findgroupreserve($biblioitemnumber, $biblionumber, $itemnumber, $lookahead, $ignore_borrowers);
1509
1510 Looks for a holds-queue based item-specific match first, then for a holds-queue title-level match, returning the
1511 first match found.  If neither, then we look for non-holds-queue based holds.
1512 Lookahead is the number of days to look in advance.
1513
1514 C<&_Findgroupreserve> returns :
1515 C<@results> is an array of references-to-hash whose keys are mostly
1516 fields from the reserves table of the Koha database, plus
1517 C<biblioitemnumber>.
1518
1519 This routine with either return:
1520 1 - Item specific holds from the holds queue
1521 2 - Title level holds from the holds queue
1522 3 - All holds for this biblionumber
1523
1524 All return values will respect any borrowernumbers passed as arrayref in $ignore_borrowers
1525
1526 =cut
1527
1528 sub _Findgroupreserve {
1529     my ( $bibitem, $biblio, $itemnumber, $lookahead, $ignore_borrowers) = @_;
1530     my $dbh   = C4::Context->dbh;
1531
1532     # TODO: consolidate at least the SELECT portion of the first 2 queries to a common $select var.
1533     # check for exact targeted match
1534     my $item_level_target_query = qq{
1535         SELECT reserves.biblionumber        AS biblionumber,
1536                reserves.borrowernumber      AS borrowernumber,
1537                reserves.reservedate         AS reservedate,
1538                reserves.branchcode          AS branchcode,
1539                reserves.cancellationdate    AS cancellationdate,
1540                reserves.found               AS found,
1541                reserves.reservenotes        AS reservenotes,
1542                reserves.priority            AS priority,
1543                reserves.timestamp           AS timestamp,
1544                biblioitems.biblioitemnumber AS biblioitemnumber,
1545                reserves.itemnumber          AS itemnumber,
1546                reserves.reserve_id          AS reserve_id,
1547                reserves.itemtype            AS itemtype
1548         FROM reserves
1549         JOIN biblioitems USING (biblionumber)
1550         JOIN hold_fill_targets USING (biblionumber, borrowernumber, itemnumber)
1551         WHERE found IS NULL
1552         AND priority > 0
1553         AND item_level_request = 1
1554         AND itemnumber = ?
1555         AND reservedate <= DATE_ADD(NOW(),INTERVAL ? DAY)
1556         AND suspend = 0
1557         ORDER BY priority
1558     };
1559     my $sth = $dbh->prepare($item_level_target_query);
1560     $sth->execute($itemnumber, $lookahead||0);
1561     my @results;
1562     if ( my $data = $sth->fetchrow_hashref ) {
1563         push( @results, $data )
1564           unless any{ $data->{borrowernumber} eq $_ } @$ignore_borrowers ;
1565     }
1566     return @results if @results;
1567
1568     # check for title-level targeted match
1569     my $title_level_target_query = qq{
1570         SELECT reserves.biblionumber        AS biblionumber,
1571                reserves.borrowernumber      AS borrowernumber,
1572                reserves.reservedate         AS reservedate,
1573                reserves.branchcode          AS branchcode,
1574                reserves.cancellationdate    AS cancellationdate,
1575                reserves.found               AS found,
1576                reserves.reservenotes        AS reservenotes,
1577                reserves.priority            AS priority,
1578                reserves.timestamp           AS timestamp,
1579                biblioitems.biblioitemnumber AS biblioitemnumber,
1580                reserves.itemnumber          AS itemnumber,
1581                reserves.reserve_id          AS reserve_id,
1582                reserves.itemtype            AS itemtype
1583         FROM reserves
1584         JOIN biblioitems USING (biblionumber)
1585         JOIN hold_fill_targets USING (biblionumber, borrowernumber)
1586         WHERE found IS NULL
1587         AND priority > 0
1588         AND item_level_request = 0
1589         AND hold_fill_targets.itemnumber = ?
1590         AND reservedate <= DATE_ADD(NOW(),INTERVAL ? DAY)
1591         AND suspend = 0
1592         ORDER BY priority
1593     };
1594     $sth = $dbh->prepare($title_level_target_query);
1595     $sth->execute($itemnumber, $lookahead||0);
1596     @results = ();
1597     if ( my $data = $sth->fetchrow_hashref ) {
1598         push( @results, $data )
1599           unless any{ $data->{borrowernumber} eq $_ } @$ignore_borrowers ;
1600     }
1601     return @results if @results;
1602
1603     my $query = qq{
1604         SELECT reserves.biblionumber               AS biblionumber,
1605                reserves.borrowernumber             AS borrowernumber,
1606                reserves.reservedate                AS reservedate,
1607                reserves.waitingdate                AS waitingdate,
1608                reserves.branchcode                 AS branchcode,
1609                reserves.cancellationdate           AS cancellationdate,
1610                reserves.found                      AS found,
1611                reserves.reservenotes               AS reservenotes,
1612                reserves.priority                   AS priority,
1613                reserves.timestamp                  AS timestamp,
1614                reserves.itemnumber                 AS itemnumber,
1615                reserves.reserve_id                 AS reserve_id,
1616                reserves.itemtype                   AS itemtype
1617         FROM reserves
1618         WHERE reserves.biblionumber = ?
1619           AND (reserves.itemnumber IS NULL OR reserves.itemnumber = ?)
1620           AND reserves.reservedate <= DATE_ADD(NOW(),INTERVAL ? DAY)
1621           AND suspend = 0
1622           ORDER BY priority
1623     };
1624     $sth = $dbh->prepare($query);
1625     $sth->execute( $biblio, $itemnumber, $lookahead||0);
1626     @results = ();
1627     while ( my $data = $sth->fetchrow_hashref ) {
1628         push( @results, $data )
1629           unless any{ $data->{borrowernumber} eq $_ } @$ignore_borrowers ;
1630     }
1631     return @results;
1632 }
1633
1634 =head2 _koha_notify_reserve
1635
1636   _koha_notify_reserve( $hold->reserve_id );
1637
1638 Sends a notification to the patron that their hold has been filled (through
1639 ModReserveAffect, _not_ ModReserveFill)
1640
1641 The letter code for this notice may be found using the following query:
1642
1643     select distinct letter_code
1644     from message_transports
1645     inner join message_attributes using (message_attribute_id)
1646     where message_name = 'Hold_Filled'
1647
1648 This will probably sipmly be 'HOLD', but because it is defined in the database,
1649 it is subject to addition or change.
1650
1651 The following tables are availalbe witin the notice:
1652
1653     branches
1654     borrowers
1655     biblio
1656     biblioitems
1657     reserves
1658     items
1659
1660 =cut
1661
1662 sub _koha_notify_reserve {
1663     my $reserve_id = shift;
1664     my $hold = Koha::Holds->find($reserve_id);
1665     my $borrowernumber = $hold->borrowernumber;
1666
1667     my $patron = Koha::Patrons->find( $borrowernumber );
1668
1669     # Try to get the borrower's email address
1670     my $to_address = $patron->notice_email_address;
1671
1672     my $messagingprefs = C4::Members::Messaging::GetMessagingPreferences( {
1673             borrowernumber => $borrowernumber,
1674             message_name => 'Hold_Filled'
1675     } );
1676
1677     my $library = Koha::Libraries->find( $hold->branchcode )->unblessed;
1678
1679     my $admin_email_address = $library->{branchemail} || C4::Context->preference('KohaAdminEmailAddress');
1680
1681     my %letter_params = (
1682         module => 'reserves',
1683         branchcode => $hold->branchcode,
1684         lang => $patron->lang,
1685         tables => {
1686             'branches'       => $library,
1687             'borrowers'      => $patron->unblessed,
1688             'biblio'         => $hold->biblionumber,
1689             'biblioitems'    => $hold->biblionumber,
1690             'reserves'       => $hold->unblessed,
1691             'items'          => $hold->itemnumber,
1692         },
1693     );
1694
1695     my $notification_sent = 0; #Keeping track if a Hold_filled message is sent. If no message can be sent, then default to a print message.
1696     my $send_notification = sub {
1697         my ( $mtt, $letter_code ) = (@_);
1698         return unless defined $letter_code;
1699         $letter_params{letter_code} = $letter_code;
1700         $letter_params{message_transport_type} = $mtt;
1701         my $letter =  C4::Letters::GetPreparedLetter ( %letter_params );
1702         unless ($letter) {
1703             warn "Could not find a letter called '$letter_params{'letter_code'}' for $mtt in the 'reserves' module";
1704             return;
1705         }
1706
1707         C4::Letters::EnqueueLetter( {
1708             letter => $letter,
1709             borrowernumber => $borrowernumber,
1710             from_address => $admin_email_address,
1711             message_transport_type => $mtt,
1712         } );
1713     };
1714
1715     while ( my ( $mtt, $letter_code ) = each %{ $messagingprefs->{transports} } ) {
1716         next if (
1717                ( $mtt eq 'email' and not $to_address ) # No email address
1718             or ( $mtt eq 'sms'   and not $patron->smsalertnumber ) # No SMS number
1719             or ( $mtt eq 'phone' and C4::Context->preference('TalkingTechItivaPhoneNotification') ) # Notice is handled by TalkingTech_itiva_outbound.pl
1720         );
1721
1722         &$send_notification($mtt, $letter_code);
1723         $notification_sent++;
1724     }
1725     #Making sure that a print notification is sent if no other transport types can be utilized.
1726     if (! $notification_sent) {
1727         &$send_notification('print', 'HOLD');
1728     }
1729
1730 }
1731
1732 =head2 _ShiftPriorityByDateAndPriority
1733
1734   $new_priority = _ShiftPriorityByDateAndPriority( $biblionumber, $reservedate, $priority );
1735
1736 This increments the priority of all reserves after the one
1737 with either the lowest date after C<$reservedate>
1738 or the lowest priority after C<$priority>.
1739
1740 It effectively makes room for a new reserve to be inserted with a certain
1741 priority, which is returned.
1742
1743 This is most useful when the reservedate can be set by the user.  It allows
1744 the new reserve to be placed before other reserves that have a later
1745 reservedate.  Since priority also is set by the form in reserves/request.pl
1746 the sub accounts for that too.
1747
1748 =cut
1749
1750 sub _ShiftPriorityByDateAndPriority {
1751     my ( $biblio, $resdate, $new_priority ) = @_;
1752
1753     my $dbh = C4::Context->dbh;
1754     my $query = "SELECT priority FROM reserves WHERE biblionumber = ? AND ( reservedate > ? OR priority > ? ) ORDER BY priority ASC LIMIT 1";
1755     my $sth = $dbh->prepare( $query );
1756     $sth->execute( $biblio, $resdate, $new_priority );
1757     my $min_priority = $sth->fetchrow;
1758     # if no such matches are found, $new_priority remains as original value
1759     $new_priority = $min_priority if ( $min_priority );
1760
1761     # Shift the priority up by one; works in conjunction with the next SQL statement
1762     $query = "UPDATE reserves
1763               SET priority = priority+1
1764               WHERE biblionumber = ?
1765               AND borrowernumber = ?
1766               AND reservedate = ?
1767               AND found IS NULL";
1768     my $sth_update = $dbh->prepare( $query );
1769
1770     # Select all reserves for the biblio with priority greater than $new_priority, and order greatest to least
1771     $query = "SELECT borrowernumber, reservedate FROM reserves WHERE priority >= ? AND biblionumber = ? ORDER BY priority DESC";
1772     $sth = $dbh->prepare( $query );
1773     $sth->execute( $new_priority, $biblio );
1774     while ( my $row = $sth->fetchrow_hashref ) {
1775         $sth_update->execute( $biblio, $row->{borrowernumber}, $row->{reservedate} );
1776     }
1777
1778     return $new_priority;  # so the caller knows what priority they wind up receiving
1779 }
1780
1781 =head2 MoveReserve
1782
1783   MoveReserve( $itemnumber, $borrowernumber, $cancelreserve )
1784
1785 Use when checking out an item to handle reserves
1786 If $cancelreserve boolean is set to true, it will remove existing reserve
1787
1788 =cut
1789
1790 sub MoveReserve {
1791     my ( $itemnumber, $borrowernumber, $cancelreserve ) = @_;
1792
1793     my $lookahead = C4::Context->preference('ConfirmFutureHolds'); #number of days to look for future holds
1794     my ( $restype, $res, undef ) = CheckReserves( $itemnumber, undef, $lookahead );
1795     return unless $res;
1796
1797     my $biblionumber     =  $res->{biblionumber};
1798
1799     if ($res->{borrowernumber} == $borrowernumber) {
1800         ModReserveFill($res);
1801     }
1802     else {
1803         # warn "Reserved";
1804         # The item is reserved by someone else.
1805         # Find this item in the reserves
1806
1807         my $borr_res  = Koha::Holds->search({
1808             borrowernumber => $borrowernumber,
1809             biblionumber   => $biblionumber,
1810         },{
1811             order_by       => 'priority'
1812         })->next();
1813
1814         if ( $borr_res ) {
1815             # The item is reserved by the current patron
1816             ModReserveFill($borr_res->unblessed);
1817         }
1818
1819         if ( $cancelreserve eq 'revert' ) { ## Revert waiting reserve to priority 1
1820             RevertWaitingStatus({ itemnumber => $itemnumber });
1821         }
1822         elsif ( $cancelreserve eq 'cancel' || $cancelreserve ) { # cancel reserves on this item
1823             my $hold = Koha::Holds->find( $res->{reserve_id} );
1824             $hold->cancel;
1825         }
1826     }
1827 }
1828
1829 =head2 MergeHolds
1830
1831   MergeHolds($dbh,$to_biblio, $from_biblio);
1832
1833 This shifts the holds from C<$from_biblio> to C<$to_biblio> and reorders them by the date they were placed
1834
1835 =cut
1836
1837 sub MergeHolds {
1838     my ( $dbh, $to_biblio, $from_biblio ) = @_;
1839     my $sth = $dbh->prepare(
1840         "SELECT count(*) as reserve_count FROM reserves WHERE biblionumber = ?"
1841     );
1842     $sth->execute($from_biblio);
1843     if ( my $data = $sth->fetchrow_hashref() ) {
1844
1845         # holds exist on old record, if not we don't need to do anything
1846         $sth = $dbh->prepare(
1847             "UPDATE reserves SET biblionumber = ? WHERE biblionumber = ?");
1848         $sth->execute( $to_biblio, $from_biblio );
1849
1850         # Reorder by date
1851         # don't reorder those already waiting
1852
1853         $sth = $dbh->prepare(
1854 "SELECT * FROM reserves WHERE biblionumber = ? AND (found <> ? AND found <> ? OR found is NULL) ORDER BY reservedate ASC"
1855         );
1856         my $upd_sth = $dbh->prepare(
1857 "UPDATE reserves SET priority = ? WHERE biblionumber = ? AND borrowernumber = ?
1858         AND reservedate = ? AND (itemnumber = ? or itemnumber is NULL) "
1859         );
1860         $sth->execute( $to_biblio, 'W', 'T' );
1861         my $priority = 1;
1862         while ( my $reserve = $sth->fetchrow_hashref() ) {
1863             $upd_sth->execute(
1864                 $priority,                    $to_biblio,
1865                 $reserve->{'borrowernumber'}, $reserve->{'reservedate'},
1866                 $reserve->{'itemnumber'}
1867             );
1868             $priority++;
1869         }
1870     }
1871 }
1872
1873 =head2 RevertWaitingStatus
1874
1875   RevertWaitingStatus({ itemnumber => $itemnumber });
1876
1877   Reverts a 'waiting' hold back to a regular hold with a priority of 1.
1878
1879   Caveat: Any waiting hold fixed with RevertWaitingStatus will be an
1880           item level hold, even if it was only a bibliolevel hold to
1881           begin with. This is because we can no longer know if a hold
1882           was item-level or bib-level after a hold has been set to
1883           waiting status.
1884
1885 =cut
1886
1887 sub RevertWaitingStatus {
1888     my ( $params ) = @_;
1889     my $itemnumber = $params->{'itemnumber'};
1890
1891     return unless ( $itemnumber );
1892
1893     my $dbh = C4::Context->dbh;
1894
1895     ## Get the waiting reserve we want to revert
1896     my $query = "
1897         SELECT * FROM reserves
1898         WHERE itemnumber = ?
1899         AND found IS NOT NULL
1900     ";
1901     my $sth = $dbh->prepare( $query );
1902     $sth->execute( $itemnumber );
1903     my $reserve = $sth->fetchrow_hashref();
1904
1905     my $hold = Koha::Holds->find( $reserve->{reserve_id} ); # TODO Remove the next raw SQL statements and use this instead
1906
1907     ## Increment the priority of all other non-waiting
1908     ## reserves for this bib record
1909     $query = "
1910         UPDATE reserves
1911         SET
1912           priority = priority + 1
1913         WHERE
1914           biblionumber =  ?
1915         AND
1916           priority > 0
1917     ";
1918     $sth = $dbh->prepare( $query );
1919     $sth->execute( $reserve->{'biblionumber'} );
1920
1921     ## Fix up the currently waiting reserve
1922     $query = "
1923     UPDATE reserves
1924     SET
1925       priority = 1,
1926       found = NULL,
1927       waitingdate = NULL
1928     WHERE
1929       reserve_id = ?
1930     ";
1931     $sth = $dbh->prepare( $query );
1932     $sth->execute( $reserve->{'reserve_id'} );
1933
1934     unless ( $hold->item_level_hold ) {
1935         $hold->itemnumber(undef)->store;
1936     }
1937
1938     _FixPriority( { biblionumber => $reserve->{biblionumber} } );
1939 }
1940
1941 =head2 ReserveSlip
1942
1943 ReserveSlip(
1944     {
1945         branchcode     => $branchcode,
1946         borrowernumber => $borrowernumber,
1947         biblionumber   => $biblionumber,
1948         [ itemnumber   => $itemnumber, ]
1949         [ barcode      => $barcode, ]
1950     }
1951   )
1952
1953 Returns letter hash ( see C4::Letters::GetPreparedLetter ) or undef
1954
1955 The letter code will be HOLD_SLIP, and the following tables are
1956 available within the slip:
1957
1958     reserves
1959     branches
1960     borrowers
1961     biblio
1962     biblioitems
1963     items
1964
1965 =cut
1966
1967 sub ReserveSlip {
1968     my ($args) = @_;
1969     my $branchcode     = $args->{branchcode};
1970     my $borrowernumber = $args->{borrowernumber};
1971     my $biblionumber   = $args->{biblionumber};
1972     my $itemnumber     = $args->{itemnumber};
1973     my $barcode        = $args->{barcode};
1974
1975
1976     my $patron = Koha::Patrons->find($borrowernumber);
1977
1978     my $hold;
1979     if ($itemnumber || $barcode ) {
1980         $itemnumber ||= Koha::Items->find( { barcode => $barcode } )->itemnumber;
1981
1982         $hold = Koha::Holds->search(
1983             {
1984                 biblionumber   => $biblionumber,
1985                 borrowernumber => $borrowernumber,
1986                 itemnumber     => $itemnumber
1987             }
1988         )->next;
1989     }
1990     else {
1991         $hold = Koha::Holds->search(
1992             {
1993                 biblionumber   => $biblionumber,
1994                 borrowernumber => $borrowernumber
1995             }
1996         )->next;
1997     }
1998
1999     return unless $hold;
2000     my $reserve = $hold->unblessed;
2001
2002     return  C4::Letters::GetPreparedLetter (
2003         module => 'circulation',
2004         letter_code => 'HOLD_SLIP',
2005         branchcode => $branchcode,
2006         lang => $patron->lang,
2007         tables => {
2008             'reserves'    => $reserve,
2009             'branches'    => $reserve->{branchcode},
2010             'borrowers'   => $reserve->{borrowernumber},
2011             'biblio'      => $reserve->{biblionumber},
2012             'biblioitems' => $reserve->{biblionumber},
2013             'items'       => $reserve->{itemnumber},
2014         },
2015     );
2016 }
2017
2018 =head2 GetReservesControlBranch
2019
2020   my $reserves_control_branch = GetReservesControlBranch($item, $borrower);
2021
2022   Return the branchcode to be used to determine which reserves
2023   policy applies to a transaction.
2024
2025   C<$item> is a hashref for an item. Only 'homebranch' is used.
2026
2027   C<$borrower> is a hashref to borrower. Only 'branchcode' is used.
2028
2029 =cut
2030
2031 sub GetReservesControlBranch {
2032     my ( $item, $borrower ) = @_;
2033
2034     my $reserves_control = C4::Context->preference('ReservesControlBranch');
2035
2036     my $branchcode =
2037         ( $reserves_control eq 'ItemHomeLibrary' ) ? $item->{'homebranch'}
2038       : ( $reserves_control eq 'PatronLibrary' )   ? $borrower->{'branchcode'}
2039       :                                              undef;
2040
2041     return $branchcode;
2042 }
2043
2044 =head2 CalculatePriority
2045
2046     my $p = CalculatePriority($biblionumber, $resdate);
2047
2048 Calculate priority for a new reserve on biblionumber, placing it at
2049 the end of the line of all holds whose start date falls before
2050 the current system time and that are neither on the hold shelf
2051 or in transit.
2052
2053 The reserve date parameter is optional; if it is supplied, the
2054 priority is based on the set of holds whose start date falls before
2055 the parameter value.
2056
2057 After calculation of this priority, it is recommended to call
2058 _ShiftPriorityByDateAndPriority. Note that this is currently done in
2059 AddReserves.
2060
2061 =cut
2062
2063 sub CalculatePriority {
2064     my ( $biblionumber, $resdate ) = @_;
2065
2066     my $sql = q{
2067         SELECT COUNT(*) FROM reserves
2068         WHERE biblionumber = ?
2069         AND   priority > 0
2070         AND   (found IS NULL OR found = '')
2071     };
2072     #skip found==W or found==T (waiting or transit holds)
2073     if( $resdate ) {
2074         $sql.= ' AND ( reservedate <= ? )';
2075     }
2076     else {
2077         $sql.= ' AND ( reservedate < NOW() )';
2078     }
2079     my $dbh = C4::Context->dbh();
2080     my @row = $dbh->selectrow_array(
2081         $sql,
2082         undef,
2083         $resdate ? ($biblionumber, $resdate) : ($biblionumber)
2084     );
2085
2086     return @row ? $row[0]+1 : 1;
2087 }
2088
2089 =head2 IsItemOnHoldAndFound
2090
2091     my $bool = IsItemFoundHold( $itemnumber );
2092
2093     Returns true if the item is currently on hold
2094     and that hold has a non-null found status ( W, T, etc. )
2095
2096 =cut
2097
2098 sub IsItemOnHoldAndFound {
2099     my ($itemnumber) = @_;
2100
2101     my $rs = Koha::Database->new()->schema()->resultset('Reserve');
2102
2103     my $found = $rs->count(
2104         {
2105             itemnumber => $itemnumber,
2106             found      => { '!=' => undef }
2107         }
2108     );
2109
2110     return $found;
2111 }
2112
2113 =head2 GetMaxPatronHoldsForRecord
2114
2115 my $holds_per_record = ReservesControlBranch( $borrowernumber, $biblionumber );
2116
2117 For multiple holds on a given record for a given patron, the max
2118 number of record level holds that a patron can be placed is the highest
2119 value of the holds_per_record rule for each item if the record for that
2120 patron. This subroutine finds and returns the highest holds_per_record
2121 rule value for a given patron id and record id.
2122
2123 =cut
2124
2125 sub GetMaxPatronHoldsForRecord {
2126     my ( $borrowernumber, $biblionumber ) = @_;
2127
2128     my $patron = Koha::Patrons->find($borrowernumber);
2129     my @items = Koha::Items->search( { biblionumber => $biblionumber } );
2130
2131     my $controlbranch = C4::Context->preference('ReservesControlBranch');
2132
2133     my $categorycode = $patron->categorycode;
2134     my $branchcode;
2135     $branchcode = $patron->branchcode if ( $controlbranch eq "PatronLibrary" );
2136
2137     my $max = 0;
2138     foreach my $item (@items) {
2139         my $itemtype = $item->effective_itemtype();
2140
2141         $branchcode = $item->homebranch if ( $controlbranch eq "ItemHomeLibrary" );
2142
2143         my $rule = GetHoldRule( $categorycode, $itemtype, $branchcode );
2144         my $holds_per_record = $rule ? $rule->{holds_per_record} : 0;
2145         $max = $holds_per_record if $holds_per_record > $max;
2146     }
2147
2148     return $max;
2149 }
2150
2151 =head2 GetHoldRule
2152
2153 my $rule = GetHoldRule( $categorycode, $itemtype, $branchcode );
2154
2155 Returns the matching hold related issuingrule fields for a given
2156 patron category, itemtype, and library.
2157
2158 =cut
2159
2160 sub GetHoldRule {
2161     my ( $categorycode, $itemtype, $branchcode ) = @_;
2162
2163     my $dbh = C4::Context->dbh;
2164
2165     my $sth = $dbh->prepare(
2166         q{
2167          SELECT categorycode, itemtype, branchcode, reservesallowed, holds_per_record, holds_per_day
2168            FROM issuingrules
2169           WHERE (categorycode in (?,'*') )
2170             AND (itemtype IN (?,'*'))
2171             AND (branchcode IN (?,'*'))
2172        ORDER BY categorycode DESC,
2173                 itemtype     DESC,
2174                 branchcode   DESC
2175         }
2176     );
2177
2178     $sth->execute( $categorycode, $itemtype, $branchcode );
2179
2180     return $sth->fetchrow_hashref();
2181 }
2182
2183 =head1 AUTHOR
2184
2185 Koha Development Team <http://koha-community.org/>
2186
2187 =cut
2188
2189 1;