X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FDeploymentHandler%2FVersionHandler%2FDatabaseToSchemaVersions.pm;h=adaaf16802d3c8fcedea1b4698460bee16bb3806;hb=a976d6e46695d7015239ee4c30cb3708f4ce7942;hp=7be88f4cc68179a97794395dd2961295e6a6960d;hpb=b539a2166a39a25bb3d1d91b47909500b55b3ee6;p=dbsrgits%2FDBIx-Class-DeploymentHandler.git

diff --git a/lib/DBIx/Class/DeploymentHandler/VersionHandler/DatabaseToSchemaVersions.pm b/lib/DBIx/Class/DeploymentHandler/VersionHandler/DatabaseToSchemaVersions.pm
index 7be88f4..adaaf16 100644
--- a/lib/DBIx/Class/DeploymentHandler/VersionHandler/DatabaseToSchemaVersions.pm
+++ b/lib/DBIx/Class/DeploymentHandler/VersionHandler/DatabaseToSchemaVersions.pm
@@ -1,33 +1,36 @@
 package DBIx::Class::DeploymentHandler::VersionHandler::DatabaseToSchemaVersions;
-use Moose;
-use Method::Signatures::Simple;
+use Moo;
+use Sub::Quote 'quote_sub';
+use MooX::Types::MooseLike::Base qw(Str Bool);
+
+# ABSTRACT: Go straight from Database to Schema version
 
 with 'DBIx::Class::DeploymentHandler::HandlesVersioning';
 
 has schema_version => (
-  isa      => 'Str',
+  isa      => Str,
   is       => 'ro',
   required => 1,
 );
 
 has database_version => (
-  isa      => 'Str',
+  isa      => Str,
   is       => 'ro',
   required => 1,
 );
 
 has to_version => ( # configuration
-  is         => 'ro',
-  lazy_build => 1, # builder comes from another role...
-                   # which is... probably not how we want it
+  is   => 'ro',
+  isa  => Str,
+  builder => '_build_to_version',
 );
 
 sub _build_to_version { $_[0]->schema_version }
 
 has once => (
   is      => 'rw',
-  isa     => 'Bool',
-  default => undef,
+  isa     => Bool,
+  default => quote_sub(q{undef}),
 );
 
 sub next_version_set {
@@ -41,11 +44,25 @@ sub next_version_set {
   return [$self->database_version, $self->to_version];
 }
 
+sub previous_version_set {
+  my $self = shift;
+  return undef
+    if $self->once;
 
-__PACKAGE__->meta->make_immutable;
+  $self->once(!$self->once);
+  return undef
+    if $self->database_version eq $self->to_version;
+  return [$self->database_version, $self->to_version];
+}
 
 1;
 
+# vim: ts=2 sw=2 expandtab
+
 __END__
 
-vim: ts=2 sw=2 expandtab
+=head1 SEE ALSO
+
+This class is an implementation of
+L<DBIx::Class::DeploymentHandler::HandlesVersioning>.  Pretty much all the
+documentation is there.