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 use List::MoreUtils qw(any);
  24
  25 use Koha::Database;
  26 use Koha::DateUtils qw( dt_from_string );
  27
  28 use C4::Context;
  29 use Koha::Checkouts;
  30 use Koha::IssuingRules;
  31 use Koha::Item::Transfer::Limits;
  32 use Koha::Item::Transfers;
  33 use Koha::Patrons;
  34 use Koha::Libraries;
  35 use Koha::StockRotationItem;
  36 use Koha::StockRotationRotas;
  37
  38 use base qw(Koha::Object);
  39
  40 =head1 NAME
  41
  42 Koha::Item - Koha Item object class
  43
  44 =head1 API
  45
  46 =head2 Class methods
  47
  48 =cut
  49
  50 =head3 effective_itemtype
  51
  52 Returns the itemtype for the item based on whether item level itemtypes are set or not.
  53
  54 =cut
  55
  56 sub effective_itemtype {
  57     my ( $self ) = @_;
  58
  59     return $self->_result()->effective_itemtype();
  60 }
  61
  62 =head3 home_branch
  63
  64 =cut
  65
  66 sub home_branch {
  67     my ($self) = @_;
  68
  69     $self->{_home_branch} ||= Koha::Libraries->find( $self->homebranch() );
  70
  71     return $self->{_home_branch};
  72 }
  73
  74 =head3 holding_branch
  75
  76 =cut
  77
  78 sub holding_branch {
  79     my ($self) = @_;
  80
  81     $self->{_holding_branch} ||= Koha::Libraries->find( $self->holdingbranch() );
  82
  83     return $self->{_holding_branch};
  84 }
  85
  86 =head3 biblio
  87
  88 my $biblio = $item->biblio;
  89
  90 Return the bibliographic record of this item
  91
  92 =cut
  93
  94 sub biblio {
  95     my ( $self ) = @_;
  96     my $biblio_rs = $self->_result->biblio;
  97     return Koha::Biblio->_new_from_dbic( $biblio_rs );
  98 }
  99
 100 =head3 biblioitem
 101
 102 my $biblioitem = $item->biblioitem;
 103
 104 Return the biblioitem record of this item
 105
 106 =cut
 107
 108 sub biblioitem {
 109     my ( $self ) = @_;
 110     my $biblioitem_rs = $self->_result->biblioitem;
 111     return Koha::Biblioitem->_new_from_dbic( $biblioitem_rs );
 112 }
 113
 114 =head3 checkout
 115
 116 my $checkout = $item->checkout;
 117
 118 Return the checkout for this item
 119
 120 =cut
 121
 122 sub checkout {
 123     my ( $self ) = @_;
 124     my $checkout_rs = $self->_result->issue;
 125     return unless $checkout_rs;
 126     return Koha::Checkout->_new_from_dbic( $checkout_rs );
 127 }
 128
 129 =head3 get_transfer
 130
 131 my $transfer = $item->get_transfer;
 132
 133 Return the transfer if the item is in transit or undef
 134
 135 =cut
 136
 137 sub get_transfer {
 138     my ( $self ) = @_;
 139     my $transfer_rs = $self->_result->branchtransfers->search({ datearrived => undef })->first;
 140     return unless $transfer_rs;
 141     return Koha::Item::Transfer->_new_from_dbic( $transfer_rs );
 142 }
 143
 144 =head3 last_returned_by
 145
 146 Gets and sets the last borrower to return an item.
 147
 148 Accepts and returns Koha::Patron objects
 149
 150 $item->last_returned_by( $borrowernumber );
 151
 152 $last_returned_by = $item->last_returned_by();
 153
 154 =cut
 155
 156 sub last_returned_by {
 157     my ( $self, $borrower ) = @_;
 158
 159     my $items_last_returned_by_rs = Koha::Database->new()->schema()->resultset('ItemsLastBorrower');
 160
 161     if ($borrower) {
 162         return $items_last_returned_by_rs->update_or_create(
 163             { borrowernumber => $borrower->borrowernumber, itemnumber => $self->id } );
 164     }
 165     else {
 166         unless ( $self->{_last_returned_by} ) {
 167             my $result = $items_last_returned_by_rs->single( { itemnumber => $self->id } );
 168             if ($result) {
 169                 $self->{_last_returned_by} = Koha::Patrons->find( $result->get_column('borrowernumber') );
 170             }
 171         }
 172
 173         return $self->{_last_returned_by};
 174     }
 175 }
 176
 177 =head3 can_article_request
 178
 179 my $bool = $item->can_article_request( $borrower )
 180
 181 Returns true if item can be specifically requested
 182
 183 $borrower must be a Koha::Patron object
 184
 185 =cut
 186
 187 sub can_article_request {
 188     my ( $self, $borrower ) = @_;
 189
 190     my $rule = $self->article_request_type($borrower);
 191
 192     return 1 if $rule && $rule ne 'no' && $rule ne 'bib_only';
 193     return q{};
 194 }
 195
 196 =head3 hidden_in_opac
 197
 198 my $bool = $item->hidden_in_opac({ [ rules => $rules ] })
 199
 200 Returns true if item fields match the hidding criteria defined in $rules.
 201 Returns false otherwise.
 202
 203 Takes HASHref that can have the following parameters:
 204     OPTIONAL PARAMETERS:
 205     $rules : { <field> => [ value_1, ... ], ... }
 206
 207 Note: $rules inherits its structure from the parsed YAML from reading
 208 the I<OpacHiddenItems> system preference.
 209
 210 =cut
 211
 212 sub hidden_in_opac {
 213     my ( $self, $params ) = @_;
 214
 215     my $rules = $params->{rules} // {};
 216
 217     return 1
 218         if C4::Context->preference('hidelostitems') and
 219            $self->itemlost > 0;
 220
 221     my $hidden_in_opac = 0;
 222
 223     foreach my $field ( keys %{$rules} ) {
 224
 225         if ( any { $self->$field eq $_ } @{ $rules->{$field} } ) {
 226             $hidden_in_opac = 1;
 227             last;
 228         }
 229     }
 230
 231     return $hidden_in_opac;
 232 }
 233
 234 =head3 can_be_transferred
 235
 236 $item->can_be_transferred({ to => $to_library, from => $from_library })
 237 Checks if an item can be transferred to given library.
 238
 239 This feature is controlled by two system preferences:
 240 UseBranchTransferLimits to enable / disable the feature
 241 BranchTransferLimitsType to use either an itemnumber or ccode as an identifier
 242                          for setting the limitations
 243
 244 Takes HASHref that can have the following parameters:
 245     MANDATORY PARAMETERS:
 246     $to   : Koha::Library
 247     OPTIONAL PARAMETERS:
 248     $from : Koha::Library  # if not given, item holdingbranch
 249                            # will be used instead
 250
 251 Returns 1 if item can be transferred to $to_library, otherwise 0.
 252
 253 To find out whether at least one item of a Koha::Biblio can be transferred, please
 254 see Koha::Biblio->can_be_transferred() instead of using this method for
 255 multiple items of the same biblio.
 256
 257 =cut
 258
 259 sub can_be_transferred {
 260     my ($self, $params) = @_;
 261
 262     my $to   = $params->{to};
 263     my $from = $params->{from};
 264
 265     $to   = $to->branchcode;
 266     $from = defined $from ? $from->branchcode : $self->holdingbranch;
 267
 268     return 1 if $from eq $to; # Transfer to current branch is allowed
 269     return 1 unless C4::Context->preference('UseBranchTransferLimits');
 270
 271     my $limittype = C4::Context->preference('BranchTransferLimitsType');
 272     return Koha::Item::Transfer::Limits->search({
 273         toBranch => $to,
 274         fromBranch => $from,
 275         $limittype => $limittype eq 'itemtype'
 276                         ? $self->effective_itemtype : $self->ccode
 277     })->count ? 0 : 1;
 278 }
 279
 280 =head3 article_request_type
 281
 282 my $type = $item->article_request_type( $borrower )
 283
 284 returns 'yes', 'no', 'bib_only', or 'item_only'
 285
 286 $borrower must be a Koha::Patron object
 287
 288 =cut
 289
 290 sub article_request_type {
 291     my ( $self, $borrower ) = @_;
 292
 293     my $branch_control = C4::Context->preference('HomeOrHoldingBranch');
 294     my $branchcode =
 295         $branch_control eq 'homebranch'    ? $self->homebranch
 296       : $branch_control eq 'holdingbranch' ? $self->holdingbranch
 297       :                                      undef;
 298     my $borrowertype = $borrower->categorycode;
 299     my $itemtype = $self->effective_itemtype();
 300     my $issuing_rule = Koha::IssuingRules->get_effective_issuing_rule({ categorycode => $borrowertype, itemtype => $itemtype, branchcode => $branchcode });
 301
 302     return q{} unless $issuing_rule;
 303     return $issuing_rule->article_requests || q{}
 304 }
 305
 306 =head3 current_holds
 307
 308 =cut
 309
 310 sub current_holds {
 311     my ( $self ) = @_;
 312     my $attributes = { order_by => 'priority' };
 313     my $dtf = Koha::Database->new->schema->storage->datetime_parser;
 314     my $params = {
 315         itemnumber => $self->itemnumber,
 316         suspend => 0,
 317         -or => [
 318             reservedate => { '<=' => $dtf->format_date(dt_from_string) },
 319             waitingdate => { '!=' => undef },
 320         ],
 321     };
 322     my $hold_rs = $self->_result->reserves->search( $params, $attributes );
 323     return Koha::Holds->_new_from_dbic($hold_rs);
 324 }
 325
 326 =head3 stockrotationitem
 327
 328   my $sritem = Koha::Item->stockrotationitem;
 329
 330 Returns the stock rotation item associated with the current item.
 331
 332 =cut
 333
 334 sub stockrotationitem {
 335     my ( $self ) = @_;
 336     my $rs = $self->_result->stockrotationitem;
 337     return 0 if !$rs;
 338     return Koha::StockRotationItem->_new_from_dbic( $rs );
 339 }
 340
 341 =head3 add_to_rota
 342
 343   my $item = $item->add_to_rota($rota_id);
 344
 345 Add this item to the rota identified by $ROTA_ID, which means associating it
 346 with the first stage of that rota.  Should this item already be associated
 347 with a rota, then we will move it to the new rota.
 348
 349 =cut
 350
 351 sub add_to_rota {
 352     my ( $self, $rota_id ) = @_;
 353     Koha::StockRotationRotas->find($rota_id)->add_item($self->itemnumber);
 354     return $self;
 355 }
 356
 357 =head2 Internal methods
 358
 359 =head3 _type
 360
 361 =cut
 362
 363 sub _type {
 364     return 'Item';
 365 }
 366
 367 =head1 AUTHOR
 368
 369 Kyle M Hall <kyle@bywatersolutions.com>
 370
 371 =cut
 372
 373 1;