3 # Copyright ByWater Solutions 2014
5 # This file is part of Koha.
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
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.
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.
28 Koha::Objects - Koha Object set base class
33 my @objects = Koha::Objects->search({ borrowernumber => $borrowernumber});
37 This class must be subclassed.
45 =head3 Koha::Objects->new();
47 my $object = Koha::Objects->new();
55 bless( $self, $class );
58 =head3 Koha::Objects->_new_from_dbic();
60 my $object = Koha::Objects->_new_from_dbic( $resultset );
65 my ( $class, $resultset ) = @_;
66 my $self = { _resultset => $resultset };
68 bless( $self, $class );
71 =head3 Koha::Objects->find();
73 my $object = Koha::Objects->find($id);
74 my $object = Koha::Objects->find( { keypart1 => $keypart1, keypart2 => $keypart2 } );
79 my ( $self, $id ) = @_;
81 return unless defined($id);
83 my $result = $self->_resultset()->find($id);
85 return unless $result;
87 my $object = $self->object_class()->_new_from_dbic( $result );
92 =head3 Koha::Objects->find_or_create();
94 my $object = Koha::Objects->find_or_create( $attrs );
99 my ( $self, $params ) = @_;
101 my $result = $self->_resultset->find_or_create($params);
103 return unless $result;
105 my $object = $self->object_class->_new_from_dbic($result);
110 =head3 Koha::Objects->search();
112 my @objects = Koha::Objects->search($params);
117 my ( $self, $params, $attributes ) = @_;
120 my @dbic_rows = $self->_resultset()->search($params, $attributes);
122 return $self->_wrap(@dbic_rows);
126 my $class = ref($self) ? ref($self) : $self;
127 my $rs = $self->_resultset()->search($params, $attributes);
129 return $class->_new_from_dbic($rs);
133 =head3 search_related
135 my @objects = Koha::Objects->search_related( $rel_name, $cond?, \%attrs? );
136 my $objects = Koha::Objects->search_related( $rel_name, $cond?, \%attrs? );
138 Searches the specified relationship, optionally specifying a condition and attributes for matching records.
143 my ( $self, $rel_name, @params ) = @_;
146 my @dbic_rows = $self->_resultset()->search_related($rel_name, @params);
147 my $object_class = get_object_class( $dbic_rows[0]->result_class )->[1];
149 eval "require $object_class";
150 return $object_class->_wrap(@dbic_rows);
153 my $rs = $self->_resultset()->search_related($rel_name, @params);
154 my $object_class = get_object_class( $rs->result_class )->[1];
156 eval "require $object_class";
157 return $object_class->_new_from_dbic($rs);
161 =head3 Koha::Objects->next();
163 my $object = Koha::Objects->next();
165 Returns the next object that is part of this set.
166 Returns undef if there are no more objects to return.
173 my $result = $self->_resultset()->next();
174 return unless $result;
176 my $object = $self->object_class()->_new_from_dbic( $result );
181 =head3 Koha::Objects->as_list();
183 Koha::Objects->as_list();
185 Returns an arrayref of the objects in this set.
192 my @dbic_rows = $self->_resultset()->all();
194 my @objects = $self->_wrap(@dbic_rows);
196 return wantarray ? @objects : \@objects;
199 =head3 Koha::Objects->unblessed
201 Returns an unblessed representation of objects.
208 return [ map { $_->unblessed } $self->as_list ];
211 =head3 Koha::Objects->_wrap
213 wraps the DBIC object in a corresponding Koha object
218 my ( $self, @dbic_rows ) = @_;
220 my @objects = map { $self->object_class->_new_from_dbic( $_ ) } @dbic_rows;
225 =head3 Koha::Objects->_resultset
227 Returns the internal resultset or creates it if undefined
235 $self->{_resultset} ||=
236 Koha::Database->new()->schema()->resultset( $self->_type() );
238 return $self->{_resultset};
241 return Koha::Database->new()->schema()->resultset( $self->_type() );
245 sub get_object_class {
248 $type =~ s|^Koha::Schema::Result::||;
250 Branch => [ qw( Koha::Library Koha::Libraries ) ],
251 Borrower => [ qw( Koha::Patron Koha::Patrons ) ],
252 OldIssue => [ qw( Koha::OldIssue Koha::OldIssues ) ],
254 return $mappings->{$type};
259 my @columns = Koha::Objects->columns
261 Return the table columns
267 return Koha::Database->new->schema->resultset( $class->_type )->result_source->columns;
272 The autoload method is used call DBIx::Class method on a resultset.
274 Important: If you plan to use one of the DBIx::Class methods you must provide
275 relevant tests in t/db_dependent/Koha/Objects.t
276 Currently count, pager, reset, update and delete are covered.
281 my ( $self, @params ) = @_;
283 my @known_methods = qw( count pager reset update delete );
284 my $method = our $AUTOLOAD;
287 carp "The method $method is not covered by tests" and return unless grep {/^$method$/} @known_methods;
288 my $r = eval { $self->_resultset->$method(@params) };
290 carp "No method $method found for " . ref($self) . " " . $@;
298 The _type method must be set for all child classes.
299 The value returned by it should be the DBIC resultset name.
300 For example, for holds, _type should return 'Reserve'.
308 This method must be set for all child classes.
309 The value returned by it should be the name of the Koha
310 object class that is returned by this class.
311 For example, for holds, object_class should return 'Koha::Hold'.
321 Kyle M Hall <kyle@bywatersolutions.com>