#
# This file is part of Koha.
#
-# Koha is free software; you can redistribute it and/or modify it under the
-# terms of the GNU General Public License as published by the Free Software
-# Foundation; either version 3 of the License, or (at your option) any later
-# version.
+# Koha is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
#
-# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
-# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+# Koha is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
#
-# You should have received a copy of the GNU General Public License along
-# with Koha; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+# You should have received a copy of the GNU General Public License
+# along with Koha; if not, see <http://www.gnu.org/licenses>.
use Modern::Perl;
use Carp;
+use Mojo::JSON;
+use Scalar::Util qw( blessed looks_like_number );
+use Try::Tiny;
use Koha::Database;
+use Koha::Exceptions::Object;
+use Koha::DateUtils;
=head1 NAME
my $self = {};
if ($attributes) {
+ my $schema = Koha::Database->new->schema;
+
+ # Remove the arguments which exist, are not defined but NOT NULL to use the default value
+ my $columns_info = $schema->resultset( $class->_type )->result_source->columns_info;
+ for my $column_name ( keys %$attributes ) {
+ my $c_info = $columns_info->{$column_name};
+ next if $c_info->{is_nullable};
+ next if not exists $attributes->{$column_name} or defined $attributes->{$column_name};
+ delete $attributes->{$column_name};
+ }
+
$self->{_result} =
- Koha::Database->new()->schema()->resultset( $class->_type() )
- ->new($attributes);
+ $schema->resultset( $class->_type() )->new($attributes);
}
croak("No _type found! Koha::Object must be subclassed!")
sub store {
my ($self) = @_;
- return $self->_result()->update_or_insert() ? $self : undef;
+ my $columns_info = $self->_result->result_source->columns_info;
+
+ # Handle not null and default values for integers and dates
+ foreach my $col ( keys %{$columns_info} ) {
+ # Integers
+ if ( _numeric_column_type( $columns_info->{$col}->{data_type} ) ) {
+ # Has been passed but not a number, usually an empty string
+ if ( defined $self->$col and not looks_like_number( $self->$col ) ) {
+ if ( $columns_info->{$col}->{is_nullable} ) {
+ # If nullable, default to null
+ $self->$col(undef);
+ } else {
+ # If cannot be null, get the default value
+ # What if cannot be null and does not have a default value? Possible?
+ $self->$col($columns_info->{$col}->{default_value});
+ }
+ }
+ }
+ elsif ( _date_or_datetime_column_type( $columns_info->{$col}->{data_type} ) ) {
+ # Set to null if an empty string (or == 0 but should not happen)
+ if ( defined $self->$col and not $self->$col ) {
+ if ( $columns_info->{$col}->{is_nullable} ) {
+ $self->$col(undef);
+ } else {
+ $self->$col($columns_info->{$col}->{default_value});
+ }
+ }
+ }
+ }
+
+ try {
+ return $self->_result()->update_or_insert() ? $self : undef;
+ }
+ catch {
+ # Catch problems and raise relevant exceptions
+ if (ref($_) eq 'DBIx::Class::Exception') {
+ if ( $_->{msg} =~ /Cannot add or update a child row: a foreign key constraint fails/ ) {
+ # FK constraints
+ # FIXME: MySQL error, if we support more DB engines we should implement this for each
+ if ( $_->{msg} =~ /FOREIGN KEY \(`(?<column>.*?)`\)/ ) {
+ Koha::Exceptions::Object::FKConstraint->throw(
+ error => 'Broken FK constraint',
+ broken_fk => $+{column}
+ );
+ }
+ }
+ elsif( $_->{msg} =~ /Duplicate entry '(.*?)' for key '(?<key>.*?)'/ ) {
+ Koha::Exceptions::Object::DuplicateID->throw(
+ error => 'Duplicate ID',
+ duplicate_id => $+{key}
+ );
+ }
+ elsif( $_->{msg} =~ /Incorrect (?<type>\w+) value: '(?<value>.*)' for column \W?(?<property>\S+)/ ) { # The optional \W in the regex might be a quote or backtick
+ my $type = $+{type};
+ my $value = $+{value};
+ my $property = $+{property};
+ $property =~ s/['`]//g;
+ Koha::Exceptions::Object::BadValue->throw(
+ type => $type,
+ value => $value,
+ property => $property =~ /(\w+\.\w+)$/ ? $1 : $property, # results in table.column without quotes or backtics
+ );
+ }
+ }
+ # Catch-all for foreign key breakages. It will help find other use cases
+ $_->rethrow();
+ }
+}
+
+=head3 $object->update();
+
+A shortcut for set + store in one call.
+
+=cut
+
+sub update {
+ my ($self, $values) = @_;
+ return $self->set($values)->store();
}
=head3 $object->delete();
sub delete {
my ($self) = @_;
- # Deleting something not in storage thows an exception
- return -1 unless $self->_result()->in_storage();
-
- # Return a boolean for succcess
- return $self->_result()->delete() ? 1 : 0;
+ my $deleted = $self->_result()->delete;
+ if ( ref $deleted ) {
+ my $object_class = Koha::Object::_get_object_class( $self->_result->result_class );
+ $deleted = $object_class->_new_from_dbic($deleted);
+ }
+ return $deleted;
}
=head3 $object->set( $properties_hashref )
my @columns = @{$self->_columns()};
foreach my $p ( keys %$properties ) {
- unless ( grep {/^$p$/} @columns ) {
- carp("No property $p!");
- return 0;
+ unless ( grep { $_ eq $p } @columns ) {
+ Koha::Exceptions::Object::PropertyNotFound->throw( "No property $p for " . ref($self) );
}
}
return { $self->_result->get_columns };
}
+=head3 $object->get_from_storage;
+
+=cut
+
+sub get_from_storage {
+ my ( $self, $attrs ) = @_;
+ my $stored_object = $self->_result->get_from_storage($attrs);
+ return unless $stored_object;
+ my $object_class = Koha::Object::_get_object_class( $self->_result->result_class );
+ return $object_class->_new_from_dbic($stored_object);
+}
+
+=head3 $object->TO_JSON
+
+Returns an unblessed representation of the object, suitable for JSON output.
+
+=cut
+
+sub TO_JSON {
+
+ my ($self) = @_;
+
+ my $unblessed = $self->unblessed;
+ my $columns_info = Koha::Database->new->schema->resultset( $self->_type )
+ ->result_source->{_columns};
+
+ foreach my $col ( keys %{$columns_info} ) {
+
+ if ( $columns_info->{$col}->{is_boolean} )
+ { # Handle booleans gracefully
+ $unblessed->{$col}
+ = ( $unblessed->{$col} )
+ ? Mojo::JSON->true
+ : Mojo::JSON->false;
+ }
+ elsif ( _numeric_column_type( $columns_info->{$col}->{data_type} )
+ and looks_like_number( $unblessed->{$col} )
+ ) {
+
+ # TODO: Remove once the solution for
+ # https://rt.cpan.org/Ticket/Display.html?id=119904
+ # is ported to whatever distro we support by that time
+ $unblessed->{$col} += 0;
+ }
+ elsif ( _datetime_column_type( $columns_info->{$col}->{data_type} ) ) {
+ eval {
+ return unless $unblessed->{$col};
+ $unblessed->{$col} = output_pref({
+ dateformat => 'rfc3339',
+ dt => dt_from_string($unblessed->{$col}, 'sql'),
+ });
+ };
+ }
+ }
+ return $unblessed;
+}
+
+sub _date_or_datetime_column_type {
+ my ($column_type) = @_;
+
+ my @dt_types = (
+ 'timestamp',
+ 'date',
+ 'datetime'
+ );
+
+ return ( grep { $column_type eq $_ } @dt_types) ? 1 : 0;
+}
+sub _datetime_column_type {
+ my ($column_type) = @_;
+
+ my @dt_types = (
+ 'timestamp',
+ 'datetime'
+ );
+
+ return ( grep { $column_type eq $_ } @dt_types) ? 1 : 0;
+}
+
+sub _numeric_column_type {
+ # TODO: Remove once the solution for
+ # https://rt.cpan.org/Ticket/Display.html?id=119904
+ # is ported to whatever distro we support by that time
+ my ($column_type) = @_;
+
+ my @numeric_types = (
+ 'bigint',
+ 'integer',
+ 'int',
+ 'mediumint',
+ 'smallint',
+ 'tinyint',
+ 'decimal',
+ 'double precision',
+ 'float'
+ );
+
+ return ( grep { $column_type eq $_ } @numeric_types) ? 1 : 0;
+}
+
+=head3 prefetch_whitelist
+
+ my $whitelist = $object->prefetch_whitelist()
+
+Returns a hash of prefetchable subs and the type they return.
+
+=cut
+
+sub prefetch_whitelist {
+ my ( $self ) = @_;
+
+ my $whitelist = {};
+ my $relations = $self->_result->result_source->_relationships;
+
+ foreach my $key (keys %{$relations}) {
+ if($self->can($key)) {
+ my $result_class = $relations->{$key}->{class};
+ my $obj = $result_class->new;
+ try {
+ $whitelist->{$key} = $obj->koha_object_class;
+ } catch {
+ $whitelist->{$key} = undef;
+ }
+ }
+ }
+
+ return $whitelist;
+}
+
+=head3 to_api
+
+ my $object_for_api = $object->to_api(
+ {
+ [ embed => {
+ items => {
+ children => {
+ holds => {,
+ children => {
+ ...
+ }
+ }
+ }
+ },
+ library => {
+ ...
+ }
+ },
+ ...
+ ]
+ }
+ );
+
+Returns a representation of the object, suitable for API output.
+
+=cut
+
+sub to_api {
+ my ( $self, $params ) = @_;
+ my $json_object = $self->TO_JSON;
+
+ my $to_api_mapping = $self->to_api_mapping;
+
+ # Rename attributes if there's a mapping
+ if ( $self->can('to_api_mapping') ) {
+ foreach my $column ( keys %{ $self->to_api_mapping } ) {
+ my $mapped_column = $self->to_api_mapping->{$column};
+ if ( exists $json_object->{$column}
+ && defined $mapped_column )
+ {
+ # key != undef
+ $json_object->{$mapped_column} = delete $json_object->{$column};
+ }
+ elsif ( exists $json_object->{$column}
+ && !defined $mapped_column )
+ {
+ # key == undef
+ delete $json_object->{$column};
+ }
+ }
+ }
+
+ my $embeds = $params->{embed};
+
+ if ($embeds) {
+ foreach my $embed ( keys %{$embeds} ) {
+ if ( $embed =~ m/^(?<relation>.*)_count$/
+ and $embeds->{$embed}->{is_count} ) {
+
+ my $relation = $+{relation};
+ $json_object->{$embed} = $self->$relation->count;
+ }
+ else {
+ my $curr = $embed;
+ my $next = $embeds->{$curr}->{children};
+
+ my $children = $self->$curr;
+
+ if ( defined $children and ref($children) eq 'ARRAY' ) {
+ my @list = map {
+ $self->_handle_to_api_child(
+ { child => $_, next => $next, curr => $curr } )
+ } @{$children};
+ $json_object->{$curr} = \@list;
+ }
+ else {
+ $json_object->{$curr} = $self->_handle_to_api_child(
+ { child => $children, next => $next, curr => $curr } );
+ }
+ }
+ }
+ }
+
+
+
+ return $json_object;
+}
+
+=head3 to_api_mapping
+
+ my $mapping = $object->to_api_mapping;
+
+Generic method that returns the attribute name mappings required to
+render the object on the API.
+
+Note: this only returns an empty I<hashref>. Each class should have its
+own mapping returned.
+
+=cut
+
+sub to_api_mapping {
+ return {};
+}
+
+=head3 from_api_mapping
+
+ my $mapping = $object->from_api_mapping;
+
+Generic method that returns the attribute name mappings so the data that
+comes from the API is correctly renamed to match what is required for the DB.
+
+=cut
+
+sub from_api_mapping {
+ my ( $self ) = @_;
+
+ my $to_api_mapping = $self->to_api_mapping;
+
+ unless ( $self->{_from_api_mapping} ) {
+ while (my ($key, $value) = each %{ $to_api_mapping } ) {
+ $self->{_from_api_mapping}->{$value} = $key
+ if defined $value;
+ }
+ }
+
+ return $self->{_from_api_mapping};
+}
+
+=head3 new_from_api
+
+ my $object = Koha::Object->new_from_api;
+ my $object = Koha::Object->new_from_api( $attrs );
+
+Creates a new object, mapping the API attribute names to the ones on the DB schema.
+
+=cut
+
+sub new_from_api {
+ my ( $class, $params ) = @_;
+
+ my $self = $class->new;
+ return $self->set_from_api( $params );
+}
+
+=head3 set_from_api
+
+ my $object = Koha::Object->new(...);
+ $object->set_from_api( $attrs )
+
+Sets the object's attributes mapping API attribute names to the ones on the DB schema.
+
+=cut
+
+sub set_from_api {
+ my ( $self, $from_api_params ) = @_;
+
+ return $self->set( $self->attributes_from_api( $from_api_params ) );
+}
+
+=head3 attributes_from_api
+
+ my $attributes = attributes_from_api( $params );
+
+Returns the passed params, converted from API naming into the model.
+
+=cut
+
+sub attributes_from_api {
+ my ( $self, $from_api_params ) = @_;
+
+ my $from_api_mapping = $self->from_api_mapping;
+
+ my $params;
+ my $columns_info = $self->_result->result_source->columns_info;
+
+ while (my ($key, $value) = each %{ $from_api_params } ) {
+ my $koha_field_name =
+ exists $from_api_mapping->{$key}
+ ? $from_api_mapping->{$key}
+ : $key;
+
+ if ( $columns_info->{$koha_field_name}->{is_boolean} ) {
+ # TODO: Remove when D8 is formally deprecated
+ # Handle booleans gracefully
+ $value = ( $value ) ? 1 : 0;
+ }
+ elsif ( _date_or_datetime_column_type( $columns_info->{$koha_field_name}->{data_type} ) ) {
+ try {
+ $value = dt_from_string($value, 'rfc3339');
+ }
+ catch {
+ Koha::Exceptions::BadParameter->throw( parameter => $key );
+ };
+ }
+
+ $params->{$koha_field_name} = $value;
+ }
+
+ return $params;
+}
+
+=head3 $object->unblessed_all_relateds
+
+my $everything_into_one_hashref = $object->unblessed_all_relateds
+
+The unblessed method only retrieves column' values for the column of the object.
+In a *few* cases we want to retrieve the information of all the prefetched data.
+
+=cut
+
+sub unblessed_all_relateds {
+ my ($self) = @_;
+
+ my %data;
+ my $related_resultsets = $self->_result->{related_resultsets} || {};
+ my $rs = $self->_result;
+ while ( $related_resultsets and %$related_resultsets ) {
+ my @relations = keys %{ $related_resultsets };
+ if ( @relations ) {
+ my $relation = $relations[0];
+ $rs = $rs->related_resultset($relation)->get_cache;
+ $rs = $rs->[0]; # Does it makes sense to have several values here?
+ my $object_class = Koha::Object::_get_object_class( $rs->result_class );
+ my $koha_object = $object_class->_new_from_dbic( $rs );
+ $related_resultsets = $rs->{related_resultsets};
+ %data = ( %data, %{ $koha_object->unblessed } );
+ }
+ }
+ %data = ( %data, %{ $self->unblessed } );
+ return \%data;
+}
+
=head3 $object->_result();
Returns the internal DBIC Row object
return $self->{_columns};
}
+sub _get_object_class {
+ my ( $type ) = @_;
+ return unless $type;
+
+ if( $type->can('koha_object_class') ) {
+ return $type->koha_object_class;
+ }
+ $type =~ s|Schema::Result::||;
+ return ${type};
+}
=head3 AUTOLOAD
my @columns = @{$self->_columns()};
# Using direct setter/getter like $item->barcode() or $item->barcode($barcode);
- if ( grep {/^$method$/} @columns ) {
+ if ( grep { $_ eq $method } @columns ) {
if ( @_ ) {
$self->_result()->set_column( $method, @_ );
return $self;
}
}
- my @known_methods = qw( is_changed id in_storage );
+ my @known_methods = qw( is_changed id in_storage get_column discard_changes make_column_dirty );
+
+ Koha::Exceptions::Object::MethodNotCoveredByTests->throw(
+ error => sprintf("The method %s->%s is not covered by tests!", ref($self), $method),
+ show_trace => 1
+ ) unless grep { $_ eq $method } @known_methods;
- carp "The method $method is not covered by tests or does not exist!" and return unless grep {/^$method$/} @known_methods;
my $r = eval { $self->_result->$method(@_) };
if ( $@ ) {
- carp "No method $method found for " . ref($self) . " " . $@;
- return
+ Koha::Exceptions::Object->throw( ref($self) . "::$method generated this error: " . $@ );
}
return $r;
}
sub _type { }
+=head3 _handle_to_api_child
+
+=cut
+
+sub _handle_to_api_child {
+ my ($self, $args ) = @_;
+
+ my $child = $args->{child};
+ my $next = $args->{next};
+ my $curr = $args->{curr};
+
+ my $res;
+
+ if ( defined $child ) {
+
+ Koha::Exceptions::Exception->throw( "Asked to embed $curr but its return value doesn't implement to_api" )
+ if defined $next and blessed $child and !$child->can('to_api');
+
+ if ( blessed $child ) {
+ $res = $child->to_api({ embed => $next });
+ }
+ else {
+ $res = $child;
+ }
+ }
+
+ return $res;
+}
+
sub DESTROY { }
=head1 AUTHOR
projects / srvgit / blobdiff