use warnings;
package DBIx::Class::ResultSet::RecursiveUpdate;
-
-our $VERSION = '0.013';
+# ABSTRACT: like update_or_create - but recursive
use base qw(DBIx::Class::ResultSet);
map {s/^foreign\.//} @rel_cols;
#warn "REL_COLS: " . Dumper(@rel_cols); use Data::Dumper;
- my $rel_col_cnt = scalar @rel_cols;
+ #my $rel_col_cnt = scalar @rel_cols;
# find out if all related columns are nullable
my $all_fks_nullable = 1;
->{is_nullable};
}
- #warn "\tNULLABLE: $all_fks_nullable\n";
$if_not_submitted = $all_fks_nullable ? 'nullify' : 'delete'
unless defined $if_not_submitted;
- # handle undef
- #if (not defined $updates && $if_not_submitted eq 'delete') {
- # warn "$name " . ref $object;
- # $object->related_resultset($name)->delete;
- # return;
- #}
+ #warn "\tNULLABLE: $all_fks_nullable ACTION: $if_not_submitted\n";
#warn "RELINFO for $name: " . Dumper($info); use Data::Dumper;
# the only valid datatype for a has_many rels is an arrayref
if ( $info->{attrs}{accessor} eq 'multi' ) {
+
+ # handle undef like empty arrayref
+ $updates = []
+ unless defined $updates;
$self->throw_exception(
"data for has_many relationship '$name' must be an arrayref")
unless ref $updates eq 'ARRAY';
#warn "\tcreated and updated related rows\n";
- my @cond;
my @related_pks = $related_resultset->result_source->primary_columns;
- for my $obj (@updated_objs) {
- my %cond_for_obj;
- for my $col (@related_pks) {
- $cond_for_obj{$col} = $obj->get_column($col);
+
+ my $rs_rel_delist = $object->$name;
+
+ # foreign table has a single pk column
+ if ( scalar @related_pks == 1 ) {
+ $rs_rel_delist = $rs_rel_delist->search_rs(
+ { $related_pks[0] =>
+ { -not_in => [ map ( $_->id, @updated_objs ) ] }
+ }
+ );
+ }
+
+ # foreign table has multiple pk columns
+ else {
+ my @cond;
+ for my $obj (@updated_objs) {
+ my %cond_for_obj;
+ for my $col (@related_pks) {
+ $cond_for_obj{$col} = $obj->get_column($col);
+ }
+ push @cond, \%cond_for_obj;
+ }
+ # only limit resultset if there are related rows left
+ if (scalar @cond) {
+ $rs_rel_delist = $rs_rel_delist->search_rs( { -not => [@cond] } );
}
- push @cond, \%cond_for_obj;
}
- my %cond = ( -not => [@cond] );
#warn "\tCOND: " . Dumper(\%cond);
- my $rs_rel_delist = $object->$name->search_rs( \%cond );
-
#my $rel_delist_cnt = $rs_rel_delist->count;
- my @foo = $rs_rel_delist->all;
if ( $if_not_submitted eq 'delete' ) {
#warn "\tdeleting related rows: $rel_delist_cnt\n";
$rs_rel_delist->delete;
-
- # # only handles related result classes with single primary keys
- # if ( 1 == $rel_col_cnt ) {
- # $object->$name->search(
- # { $rel_cols[0] =>
- # { -not_in => [ map ( $_->id, @updated_objs ) ] }
- # }
- # )->delete;
- # }
- # else {
- # warn "multi-column relationships aren't supported\n";
- # }
}
elsif ( $if_not_submitted eq 'set_to_null' ) {
#warn "\tnullifying related rows: $rel_delist_cnt\n";
my %update = map { $_ => undef } @rel_cols;
$rs_rel_delist->update( \%update );
-
- # # only handles related result classes with single primary keys
- # if ( 1 == $rel_col_cnt ) {
- # $object->$name->search(
- # { $rel_cols[0] =>
- # { -not_in => [ map ( $_->id, @updated_objs ) ] }
- # }
- # )->update( { $rel_cols[0] => undef } );
- # }
- # else {
- # warn "multi-column relationships aren't supported\n";
- # }
}
}
elsif ($info->{attrs}{accessor} eq 'single'
1; # Magic true value required at end of module
__END__
-=head1 NAME
-
-DBIx::Class::ResultSet::RecursiveUpdate - like update_or_create - but recursive
-
=head1 SYNOPSIS
-The functional interface:
+ # The functional interface:
+ my $schema = MyDB::Schema->connect();
my $new_item = DBIx::Class::ResultSet::RecursiveUpdate::Functions::recursive_update({
- resultset => $schema->resultset( 'Dvd' ),
+ resultset => $schema->resultset('User'),
updates => {
- id => 1,
- owned_dvds => [
- {
- title => 'One Flew Over the Cuckoo's Nest'
- }
- ]
+ id => 1,
+ owned_dvds => [
+ {
+ title => "One Flew Over the Cuckoo's Nest"
+ }
+ ]
}
});
-As ResultSet subclass:
+ # As ResultSet subclass:
__PACKAGE__->load_namespaces( default_resultset_class => '+DBIx::Class::ResultSet::RecursiveUpdate' );
-in the Schema file (see t/lib/DBSchema.pm). Or appriopriate 'use base' in the ResultSet classes.
+ # in the Schema file (see t/lib/DBSchema.pm). Or appriopriate 'use base' in the ResultSet classes.
-Then:
+ my $user = $schema->resultset('User')->recursive_update({
+ id => 1,
+ owned_dvds => [
+ {
+ title => "One Flew Over the Cuckoo's Nest"
+ }
+ ]
+ });
- my $user = $user_rs->recursive_update( {
- id => 1,
- owned_dvds => [
- {
- title => 'One Flew Over the Cuckoo's Nest'
- }
- ]
- }
- );
-
=head1 DESCRIPTION
This is still experimental. I've added a functional interface so that it can be used
Please report any bugs or feature requests to
C<bug-dbix-class-recursiveput@rt.cpan.org>, or through the web interface at
L<http://rt.cpan.org>.
-
-
-=head1 AUTHOR
-
-Zbigniew Lukasiak C<< <zby@cpan.org> >>
-Influenced by code by Pedro Melo.
-
-=head1 LICENCE AND COPYRIGHT
-
-Copyright (c) 2008, Zbigniew Lukasiak C<< <zby@cpan.org> >>. All rights reserved.
-
-This module is free software; you can redistribute it and/or
-modify it under the same terms as Perl itself. See L<perlartistic>.
-
-
-=head1 DISCLAIMER OF WARRANTY
-
-BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
-EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
-ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
-YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
-NECESSARY SERVICING, REPAIR, OR CORRECTION.
-
-IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE
-LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL,
-OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
-THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
-RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
-FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
-SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
projects / chaz / p5-DBIx-Class-ResultSet-RecursiveUpdate / blobdiff