package DBIx::Class::ResultSetManager;
use strict;
+use warnings;
use base 'DBIx::Class';
use Class::Inspector;
-__PACKAGE__->mk_classdata($_) for qw/ base_resultset_class table_resultset_class_suffix /;
+=head1 NAME
+
+ DBIx::Class::ResultSetManager - helpful methods for managing
+ resultset classes (EXPERIMENTAL)
+
+=head1 SYNOPSIS
+
+ # in a table class
+ __PACKAGE__->load_components(qw/ResultSetManager Core/); # note order!
+ __PACKAGE__->load_resultset_components(qw/AlwaysRS/);
+
+ # will be removed from the table class and inserted into a
+ # table-specific resultset class
+ sub search_by_year_desc : ResultSet {
+ my $self = shift;
+ my $cond = shift;
+ my $attrs = shift || {};
+ $attrs->{order_by} = 'year DESC';
+ $self->search($cond, $attrs);
+ }
+
+ $rs = $schema->resultset('CD')->search_by_year_desc({ artist => 'Tool' });
+
+=head1 DESCRIPTION
+
+This package implements two useful features for customizing resultset
+classes. C<load_resultset_components> loads components in addition to
+C<DBIx::Class::ResultSet> (or whatever you set as
+C<base_resultset_class>). Any methods tagged with the C<ResultSet>
+attribute will be moved into a table-specific resultset class (by
+default called C<Class::_resultset>, but configurable via
+C<table_resultset_class_suffix>). Most of the magic is done when you
+call C<< __PACKAGE__->table >>.
+
+=cut
+
+__PACKAGE__->mk_classdata($_)
+ for qw/ base_resultset_class table_resultset_class_suffix /;
__PACKAGE__->base_resultset_class('DBIx::Class::ResultSet');
__PACKAGE__->table_resultset_class_suffix('::_resultset');
sub table {
my ($self,@rest) = @_;
- $self->next::method(@rest);
- $self->_register_attributes;
- $self->_register_resultset_class;
+ my $ret = $self->next::method(@rest);
+ if (@rest) {
+ $self->_register_attributes;
+ $self->_register_resultset_class;
+ }
+ return $ret;
}
sub load_resultset_components {
sub _register_attributes {
my $self = shift;
- return unless $self->can('_attr_cache');
-
my $cache = $self->_attr_cache;
+ return if keys %$cache == 0;
+
foreach my $meth (@{Class::Inspector->methods($self) || []}) {
my $attrs = $cache->{$self->can($meth)};
next unless $attrs;
- if ($attrs->[0] eq 'resultset') {
+ if ($attrs->[0] eq 'ResultSet') {
no strict 'refs';
my $resultset_class = $self->_setup_resultset_class;
- *{"$resultset_class\::$meth"} = *{"$self\::$meth"};
- undef *{"$self\::$meth"};
+ *{"$resultset_class\::$meth"} = $self->can($meth);
+ delete ${"${self}::"}{$meth};
}
}
}
my $resultset_class = $self . $self->table_resultset_class_suffix;
no strict 'refs';
if (@{"$resultset_class\::ISA"}) {
- $self->result_source_instance->resultset_class($resultset_class);
+ $self->result_source_instance->resultset_class($resultset_class);
} else {
- $self->result_source_instance->resultset_class($self->base_resultset_class);
+ $self->result_source_instance->resultset_class
+ ($self->base_resultset_class);
}
}
-1;
\ No newline at end of file
+1;
+
+=head1 AUTHORS
+
+David Kamholz <dkamholz@cpan.org>
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut