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[dbsrgits/DBIx-Class-DeploymentHandler.git] / lib / DBIx / Class / DeploymentHandler.pm

diff --git a/lib/DBIx/Class/DeploymentHandler.pm b/lib/DBIx/Class/DeploymentHandler.pm
index 0c584aa..093ea62 100644 (file)
--- a/lib/DBIx/Class/DeploymentHandler.pm
+++ b/lib/DBIx/Class/DeploymentHandler.pm
@@ -1,208 +1,19 @@
 package DBIx::Class::DeploymentHandler;
 
 use Moose;
-use Method::Signatures::Simple;
-require DBIx::Class::Schema;    # loaded for type constraint
-require DBIx::Class::Storage;   # loaded for type constraint
-require DBIx::Class::ResultSet; # loaded for type constraint
-use Carp::Clan '^DBIx::Class::DeploymentHandler';
 
-has schema => (
-  isa      => 'DBIx::Class::Schema',
-  is       => 'ro',
-  required => 1,
-  handles => [qw( schema_version )],
-);
+extends 'DBIx::Class::DeploymentHandler::Dad';
+# a single with would be better, but we can't do that
+# see: http://rt.cpan.org/Public/Bug/Display.html?id=46347
+with 'DBIx::Class::DeploymentHandler::WithSqltDeployMethod',
+     'DBIx::Class::DeploymentHandler::WithMonotonicVersions',
+     'DBIx::Class::DeploymentHandler::WithStandardVersionStorage';
+with 'DBIx::Class::DeploymentHandler::WithReasonableDefaults';
 
-has upgrade_directory => (
-  isa      => 'Str',
-  is       => 'ro',
-  required => 1,
-  default  => 'upgrades',
-);
-
-has backup_directory => (
-  isa => 'Str',
-  is  => 'ro',
-);
-
-has storage => (
-  isa        => 'DBIx::Class::Storage',
-  is         => 'ro',
-  lazy_build => 1,
-);
-
-method _build_storage {
-  my $s = $self->schema->storage;
-  $s->_determine_driver;
-  $s
-}
-
-has _filedata => (
-  isa => 'Str',
-  is  => 'rw',
-);
-
-has do_backup => (
-  isa     => 'Bool',
-  is      => 'ro',
-  default => undef,
-);
-
-has do_diff_on_init => (
-  isa     => 'Bool',
-  is      => 'ro',
-  default => undef,
-);
-
-has version_rs => (
-  isa        => 'DBIx::Class::ResultSet',
-  is         => 'ro',
-  lazy_build => 1,
-  handles    => [qw( is_installed db_version )],
-);
-
-method _build_version_rs {
-   $self->schema->set_us_up_the_bomb;
-   $self->schema->resultset('__VERSION')
-}
-
-method backup { $self->storage->backup($self->backup_directory) }
-
-method create_ddl_dir { $self->storage->create_ddl_dir( $self->schema, @_ ) }
-
-method install($new_version) {
-  carp 'Install not possible as versions table already exists in database'
-    if $self->is_installed;
-
-  $new_version ||= $self->schema_version;
-
-  if ($new_version) {
-    $self->schema->deploy;
-
-    $self->version_rs->create({
-      version     => $new_version,
-      # ddl         => $ddl,
-      # upgrade_sql => $upgrade_sql,
-    });
-  }
-}
-
-method create_upgrade_path { }
-
-method ordered_schema_versions { }
-
-method upgrade {
-  my $db_version     = $self->db_version;
-  my $schema_version = $self->schema_version;
-
-  unless ($db_version) {
-    # croak?
-    carp 'Upgrade not possible as database is unversioned. Please call install first.';
-    return;
-  }
-
-  if ( $db_version eq $schema_version ) {
-    # croak?
-    carp "Upgrade not necessary\n";
-    return;
-  }
-
-  my @version_list = $self->ordered_schema_versions ||
-    ( $db_version, $schema_version );
-
-  # remove all versions in list above the required version
-  while ( @version_list && ( $version_list[-1] ne $schema_version ) ) {
-    pop @version_list;
-  }
-
-  # remove all versions in list below the current version
-  while ( @version_list && ( $version_list[0] ne $db_version ) ) {
-    shift @version_list;
-  }
-
-  # check we have an appropriate list of versions
-  die if @version_list < 2;
-
-  # do sets of upgrade
-  while ( @version_list >= 2 ) {
-    $self->upgrade_single_step( $version_list[0], $version_list[1] );
-    shift @version_list;
-  }
-}
-
-method upgrade_single_step($db_version, $target_version) {
-  if ($db_version eq $target_version) {
-    # croak?
-    carp "Upgrade not necessary\n";
-    return;
-  }
-
-  my $upgrade_file = $self->ddl_filename(
-    $self->storage->sqlt_type,
-    $target_version,
-    $self->upgrade_directory,
-    $db_version,
-  );
-
-  $self->create_upgrade_path({ upgrade_file => $upgrade_file });
-
-  unless (-f $upgrade_file) {
-    # croak?
-    carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
-    return;
-  }
-
-  carp "DB version ($db_version) is lower than the schema version (".$self->schema_version."). Attempting upgrade.\n";
-
-  $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
-  $self->backup if $self->do_backup;
-  $self->schema->txn_do(sub { $self->do_upgrade });
-
-  $self->version_rs->create({
-    version     => $target_version,
-    # ddl         => $ddl,
-    # upgrade_sql => $upgrade_sql,
-  });
-}
-
-method do_upgrade { $self->run_upgrade(qr/.*?/) }
-
-method run_upgrade($stm) {
-  return unless $self->_filedata;
-  my @statements = grep { $_ =~ $stm } @{$self->_filedata};
-
-  for (@statements) {
-    $self->storage->debugobj->query_start($_) if $self->storage->debug;
-    $self->apply_statement($_);
-    $self->storage->debugobj->query_end($_) if $self->storage->debug;
-  }
-}
-
-method apply_statement($statement) {
-  # croak?
-  $self->storage->dbh->do($_) or carp "SQL was: $_"
-}
-
-method _read_sql_file($file) {
-  return unless $file;
-
-  open my $fh, '<', $file or carp("Can't open upgrade file, $file ($!)");
-  my @data = split /\n/, join '', <$fh>;
-  close $fh;
-
-  @data = grep {
-    $_ &&
-    !/^--/ &&
-    !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/m
-  } split /;/,
-    join '', @data;
-
-  return \@data;
-}
+__PACKAGE__->meta->make_immutable;
 
 1;
 
 __END__
 
-vim: ts=2,sw=2,expandtab
+vim: ts=2 sw=2 expandtab