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202 lines
5.7 KiB
202 lines
5.7 KiB
package Koha::IssuingRules;
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# Copyright Vaara-kirjastot 2015
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# Copyright Koha Development Team 2016
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 3 of the License, or (at your option) any later
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# version.
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#
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with Koha; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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use Modern::Perl;
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use Koha::Database;
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use Koha::Caches;
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use Koha::IssuingRule;
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use base qw(Koha::Objects);
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use constant GUESSED_ITEMTYPES_KEY => 'Koha_IssuingRules_last_guess';
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=head1 NAME
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Koha::IssuingRules - Koha IssuingRule Object set class
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=head1 API
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=head2 Class Methods
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=cut
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sub get_effective_issuing_rule {
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my ( $self, $params ) = @_;
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my $default = '*';
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my $categorycode = $params->{categorycode};
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my $itemtype = $params->{itemtype};
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my $branchcode = $params->{branchcode};
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my $search_categorycode = $default;
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my $search_itemtype = $default;
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my $search_branchcode = $default;
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if ($categorycode) {
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$search_categorycode = { 'in' => [ $categorycode, $default ] };
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}
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if ($itemtype) {
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$search_itemtype = { 'in' => [ $itemtype, $default ] };
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}
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if ($branchcode) {
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$search_branchcode = { 'in' => [ $branchcode, $default ] };
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}
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my $rule = $self->search({
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categorycode => $search_categorycode,
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itemtype => $search_itemtype,
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branchcode => $search_branchcode,
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}, {
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order_by => {
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-desc => ['branchcode', 'categorycode', 'itemtype']
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},
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rows => 1,
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})->single;
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return $rule;
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}
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=head3 get_opacitemholds_policy
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my $can_place_a_hold_at_item_level = Koha::IssuingRules->get_opacitemholds_policy( { patron => $patron, item => $item } );
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Return 'Y' or 'F' if the patron can place a hold on this item according to the issuing rules
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and the "Item level holds" (opacitemholds).
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Can be 'N' - Don't allow, 'Y' - Allow, and 'F' - Force
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=cut
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sub get_opacitemholds_policy {
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my ( $class, $params ) = @_;
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my $item = $params->{item};
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my $patron = $params->{patron};
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return unless $item or $patron;
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my $issuing_rule = Koha::IssuingRules->get_effective_issuing_rule(
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{
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categorycode => $patron->categorycode,
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itemtype => $item->effective_itemtype,
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branchcode => $item->homebranch,
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}
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);
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return $issuing_rule ? $issuing_rule->opacitemholds : undef;
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}
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=head3 get_onshelfholds_policy
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my $on_shelf_holds = Koha::IssuingRules->get_onshelfholds_policy({ item => $item, patron => $patron });
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=cut
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sub get_onshelfholds_policy {
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my ( $class, $params ) = @_;
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my $item = $params->{item};
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my $itemtype = $item->effective_itemtype;
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my $patron = $params->{patron};
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my $issuing_rule = Koha::IssuingRules->get_effective_issuing_rule(
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{
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( $patron ? ( categorycode => $patron->categorycode ) : () ),
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itemtype => $itemtype,
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branchcode => $item->holdingbranch
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}
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);
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return $issuing_rule ? $issuing_rule->onshelfholds : undef;
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}
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=head3 article_requestable_rules
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Return rules that allow article requests, optionally filtered by
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patron categorycode.
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Use with care; see guess_article_requestable_itemtypes.
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=cut
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sub article_requestable_rules {
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my ( $class, $params ) = @_;
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my $category = $params->{categorycode};
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return if !C4::Context->preference('ArticleRequests');
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return $class->search({
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$category ? ( categorycode => [ $category, '*' ] ) : (),
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article_requests => { '!=' => 'no' },
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});
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}
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=head3 guess_article_requestable_itemtypes
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Return item types in a hashref that are likely possible to be
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'article requested'. Constructed by an intelligent guess in the
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issuing rules (see article_requestable_rules).
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Note: pref ArticleRequestsLinkControl overrides the algorithm.
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Optional parameters: categorycode.
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Note: the routine is used in opac-search to obtain a reasonable
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estimate within performance borders (not looking at all items but
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just using default itemtype). Also we are not looking at the
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branchcode here, since home or holding branch of the item is
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leading and branch may be unknown too (anonymous opac session).
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=cut
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sub guess_article_requestable_itemtypes {
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my ( $class, $params ) = @_;
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my $category = $params->{categorycode};
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return {} if !C4::Context->preference('ArticleRequests');
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return { '*' => 1 } if C4::Context->preference('ArticleRequestsLinkControl') eq 'always';
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my $cache = Koha::Caches->get_instance;
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my $last_article_requestable_guesses = $cache->get_from_cache(GUESSED_ITEMTYPES_KEY);
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my $key = $category || '*';
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return $last_article_requestable_guesses->{$key}
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if $last_article_requestable_guesses && exists $last_article_requestable_guesses->{$key};
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my $res = {};
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my $rules = $class->article_requestable_rules({
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$category ? ( categorycode => $category ) : (),
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});
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return $res if !$rules;
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foreach my $rule ( $rules->as_list ) {
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$res->{ $rule->itemtype } = 1;
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}
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$last_article_requestable_guesses->{$key} = $res;
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$cache->set_in_cache(GUESSED_ITEMTYPES_KEY, $last_article_requestable_guesses);
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return $res;
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}
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=head3 type
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=cut
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sub _type {
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return 'Issuingrule';
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}
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sub object_class {
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return 'Koha::IssuingRule';
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}
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1;
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