Koha/Item.pm

   1 package Koha::Item;
   2
   3 # Copyright ByWater Solutions 2014
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it under the
   8 # terms of the GNU General Public License as published by the Free Software
   9 # Foundation; either version 3 of the License, or (at your option) any later
  10 # version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  14 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License along
  17 # with Koha; if not, write to the Free Software Foundation, Inc.,
  18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19
  20 use Modern::Perl;
  21
  22 use Carp;
  23
  24 use Koha::Database;
  25
  26 use Koha::Item::Transfer;
  27 use Koha::Patrons;
  28 use Koha::Libraries;
  29
  30 use base qw(Koha::Object);
  31
  32 =head1 NAME
  33
  34 Koha::Item - Koha Item object class
  35
  36 =head1 API
  37
  38 =head2 Class Methods
  39
  40 =cut
  41
  42 =head3 effective_itemtype
  43
  44 Returns the itemtype for the item based on whether item level itemtypes are set or not.
  45
  46 =cut
  47
  48 sub effective_itemtype {
  49     my ( $self ) = @_;
  50
  51     return $self->_result()->effective_itemtype();
  52 }
  53
  54 =head3 home_branch
  55
  56 =cut
  57
  58 sub home_branch {
  59     my ($self) = @_;
  60
  61     $self->{_home_branch} ||= Koha::Libraries->find( $self->homebranch() );
  62
  63     return $self->{_home_branch};
  64 }
  65
  66 =head3 holding_branch
  67
  68 =cut
  69
  70 sub holding_branch {
  71     my ($self) = @_;
  72
  73     $self->{_holding_branch} ||= Koha::Libraries->find( $self->holdingbranch() );
  74
  75     return $self->{_holding_branch};
  76 }
  77
  78 =head3 get_transfer
  79
  80 my $transfer = $item->get_transfer;
  81
  82 Return the transfer if the item is in transit or undef
  83
  84 =cut
  85
  86 sub get_transfer {
  87     my ( $self ) = @_;
  88     my $transfer_rs = $self->_result->branchtransfers->search({ datearrived => undef })->first;
  89     return unless $transfer_rs;
  90     return Koha::Item::Transfer->_new_from_dbic( $transfer_rs );
  91 }
  92
  93 =head3 last_returned_by
  94
  95 Gets and sets the last borrower to return an item.
  96
  97 Accepts and returns Koha::Patron objects
  98
  99 $item->last_returned_by( $borrowernumber );
 100
 101 $last_returned_by = $item->last_returned_by();
 102
 103 =cut
 104
 105 sub last_returned_by {
 106     my ( $self, $borrower ) = @_;
 107
 108     my $items_last_returned_by_rs = Koha::Database->new()->schema()->resultset('ItemsLastBorrower');
 109
 110     if ($borrower) {
 111         return $items_last_returned_by_rs->update_or_create(
 112             { borrowernumber => $borrower->borrowernumber, itemnumber => $self->id } );
 113     }
 114     else {
 115         unless ( $self->{_last_returned_by} ) {
 116             my $result = $items_last_returned_by_rs->single( { itemnumber => $self->id } );
 117             if ($result) {
 118                 $self->{_last_returned_by} = Koha::Patrons->find( $result->get_column('borrowernumber') );
 119             }
 120         }
 121
 122         return $self->{_last_returned_by};
 123     }
 124 }
 125
 126 =head3 type
 127
 128 =cut
 129
 130 sub _type {
 131     return 'Item';
 132 }
 133
 134 =head1 AUTHOR
 135
 136 Kyle M Hall <kyle@bywatersolutions.com>
 137
 138 =cut
 139
 140 1;