use warnings;
use base qw/Class::Data::Inheritable/;
-use DBIx::Class;
+use base qw/DBIx::Class/;
-__PACKAGE__->mk_classdata('_class_registrations' => {});
+__PACKAGE__->load_components(qw/Exception Componentised/);
+__PACKAGE__->mk_classdata('class_registrations' => {});
=head1 NAME
then in app code
- my @obj = My::DB::Foo->retrieve_all; # My::DB::Foo isa My::Schema::Foo My::DB
+ my @obj = My::DB::Foo->search({}); # My::DB::Foo isa My::Schema::Foo My::DB
=head1 DESCRIPTION
=over 4
+=item register_class <component> <component_class>
+
+Registers the class in the schema's class_registrations. This is a hash
+containing components, and their representative classes. It's used by
+compose_connection to create/modify all the existing database classes.
+
=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);
+}
+
+=item registered_classes
+
+Simple read-only accessor for the schema's registered classes. See
+register_class above if you want to modify it.
+
+
+=cut
+
+sub registered_classes {
+ return values %{shift->class_registrations};
}
+=item load_classes [<classes>}
+
+Uses L<Module::Find> to find all components, unless specified explicitly.
+Then it loads the component (using L<use>), and registers them (using
+B<register_class>
+
+=cut
+
sub load_classes {
my $class = shift;
my @comp = grep { $_ !~ /^#/ } @_;
+ unless (@comp) {
+ eval "require Module::Find;";
+ $class->throw("No arguments to load_classes and couldn't load".
+ " Module::Find ($@)") if $@;
+ @comp = map { substr $_, length "${class}::" }
+ Module::Find::findallmod($class);
+ }
foreach my $comp (@comp) {
my $comp_class = "${class}::${comp}";
- eval "use $comp_class";
- die $@ if $@;
+ eval "use $comp_class"; # If it fails, assume the user fixed it
$class->register_class($comp => $comp_class);
}
}
+=item compose_connection
+
+=cut
+
sub compose_connection {
my ($class, $target, @info) = @_;
- $class->setup_connection_class($target, @info);
- my %reg = %{ $class->_class_registrations };
+ my $conn_class = "${target}::_db";
+ $class->setup_connection_class($conn_class, @info);
+ my %reg = %{ $class->class_registrations };
+ my %target;
+ my %map;
while (my ($comp, $comp_class) = each %reg) {
my $target_class = "${target}::${comp}";
- $class->inject_base($target_class, $comp_class, $target);
+ $class->inject_base($target_class, $conn_class, $comp_class);
+ $target_class->table($comp_class->table);
+ @map{$comp, $comp_class} = ($target_class, $target_class);
}
+ {
+ no strict 'refs';
+ *{"${target}::class"} =
+ sub {
+ my ($class, $to_map) = @_;
+ return $map{$to_map};
+ };
+ *{"${target}::classes"} = sub { return \%map; };
+ }
+ $conn_class->class_resolver($target);
}
+=item setup_connection_class <$target> <@info>
+
+=cut
+
sub setup_connection_class {
my ($class, $target, @info) = @_;
$class->inject_base($target => 'DBIx::Class');
$target->connection(@info);
}
-sub inject_base {
- my ($class, $target, @to_inject) = @_;
- {
- no strict 'refs';
- unshift(@{"${target}::ISA"}, @to_inject);
- }
-}
-
1;
=back
=head1 AUTHORS
-Matt S. Trout <perl-stuff@trout.me.uk>
+Matt S. Trout <mst@shadowcatsystems.co.uk>
=head1 LICENSE