use base qw/Class::Data::Inheritable/;
use DBIx::Class;
-__PACKAGE__->mk_classdata('_class_registrations' => {});
+__PACKAGE__->mk_classdata('class_registrations' => {});
+
+=head1 NAME
+
+DBIx::Class::Schema - composable schemas
+
+=head1 SYNOPSIS
+
+ in My/Schema.pm
+
+ package My::Schema;
+
+ use base qw/DBIx::Class::Schema/;
+
+ __PACKAGE__->load_classes(qw/Foo Bar Baz/);
+
+ in My/Schema/Foo.pm
+
+ package My::Schema::Foo;
+
+ use base qw/DBIx::Class::Core/;
+
+ __PACKAGE__->table('foo');
+ ...
+
+ in My/DB.pm
+
+ use My::Schema;
+
+ My::Schema->compose_connection('My::DB', $dsn, $user, $pass, $attrs);
+
+ then in app code
+
+ my @obj = My::DB::Foo->search({}); # My::DB::Foo isa My::Schema::Foo My::DB
+
+=head1 DESCRIPTION
+
+=head1 METHODS
+
+=over 4
+
+=cut
sub register_class {
my ($class, $name, $to_register) = @_;
- my %reg = %{$class->_class_registrations};
+ my %reg = %{$class->class_registrations};
$reg{$name} = $to_register;
- $class->_class_registrations(\%reg);
+ $class->class_registrations(\%reg);
+}
+
+sub registered_classes {
+ return values %{shift->class_registrations};
}
sub load_classes {
sub compose_connection {
my ($class, $target, @info) = @_;
- {
- no strict 'refs';
- unshift(@{"${target}::ISA"}, 'DBIx::Class');
+ $class->setup_connection_class($target, @info);
+ my %reg = %{ $class->class_registrations };
+ while (my ($comp, $comp_class) = each %reg) {
+ my $target_class = "${target}::${comp}";
+ $class->inject_base($target_class, $comp_class, $target);
}
+}
+
+sub setup_connection_class {
+ my ($class, $target, @info) = @_;
+ $class->inject_base($target => 'DBIx::Class');
$target->load_components('DB');
$target->connection(@info);
- my %reg = %{ $class->_class_registrations };
- while (my ($comp, $comp_class) = each %reg) {
- my $target_class = "${target}::${comp}";
- {
- no strict 'refs';
- unshift(@{"${target_class}::ISA"}, $comp_class, $target);
- }
+}
+
+sub inject_base {
+ my ($class, $target, @to_inject) = @_;
+ {
+ no strict 'refs';
+ unshift(@{"${target}::ISA"}, @to_inject);
}
}
1;
+
+=back
+
+=head1 AUTHORS
+
+Matt S. Trout <perl-stuff@trout.me.uk>
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+