X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FDeploymentHandler.pm;h=5deb9c6a4d7a852bfc2a71d1a556fb64cf7be197;hb=84afdcb37642d456f42de873944347b45555066b;hp=6b4dec2f3d00c454ae9d20fef2b9eb3d3b9e2633;hpb=2e68a8e19b6dc531d720e30e238dac374f397de7;p=dbsrgits%2FDBIx-Class-DeploymentHandler.git

diff --git a/lib/DBIx/Class/DeploymentHandler.pm b/lib/DBIx/Class/DeploymentHandler.pm
index 6b4dec2..5deb9c6 100644
--- a/lib/DBIx/Class/DeploymentHandler.pm
+++ b/lib/DBIx/Class/DeploymentHandler.pm
@@ -3,14 +3,12 @@ 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';
-use SQL::Translator;
-require SQL::Translator::Diff;
-use Try::Tiny;
 
-with 'DBIx::Class::DeploymentHandler::SqltDeployMethod';
+with 'DBIx::Class::DeploymentHandler::WithSqltDeployMethod',
+     'DBIx::Class::DeploymentHandler::WithDatabaseToSchemaVersions',
+     'DBIx::Class::DeploymentHandler::WithStandardVersionStorage';
 
 BEGIN {
   use Moose::Util::TypeConstraints;
@@ -27,240 +25,68 @@ has schema => (
   isa      => 'DBIx::Class::Schema',
   is       => 'ro',
   required => 1,
-  handles => [qw( ddl_filename schema_version )],
+  handles => ['schema_version'],
 );
 
-has upgrade_directory => (
+has upgrade_directory => ( # configuration
   isa      => 'Str',
   is       => 'ro',
   required => 1,
   default  => 'sql',
 );
 
-has backup_directory => (
+has backup_directory => ( # configuration
   isa => 'Str',
   is  => 'ro',
+  predicate  => 'has_backup_directory',
 );
 
-has storage => (
-  isa        => 'DBIx::Class::Storage',
+has to_version => ( # configuration
   is         => 'ro',
   lazy_build => 1,
 );
 
-method _build_storage {
-  my $s = $self->schema->storage;
-  $s->_determine_driver;
-  $s
-}
-
-has _filedata => (
-  isa => 'ArrayRef[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')
-}
+sub _build_to_version { $_[0]->schema->schema_version }
 
-has databases => (
+has databases => ( # configuration
   coerce  => 1,
   isa     => 'DBIx::Class::DeploymentHandler::Databases',
   is      => 'ro',
   default => sub { [qw( MySQL SQLite PostgreSQL )] },
 );
 
-has sqltargs => (
+has sqltargs => ( # configuration
   isa => 'HashRef',
   is  => 'ro',
   default => sub { {} },
 );
 
-method deploy {
-  my $schema   = $self->schema;
-  my $type     = undef;
-  my $sqltargs = $self->sqltargs;
-  my $dir      = $self->upgrade_directory;
-  my $storage  = $self->storage;
+method install {
+  croak 'Install not possible as versions table already exists in database'
+    if $self->version_storage_is_installed;
 
-  my $deploy = sub {
-    my $line = shift;
-    return if(!$line || $line =~ /^--|^BEGIN TRANSACTION|^COMMIT|^\s+$/);
-    $storage->_query_start($line);
-    try {
-      # do a dbh_do cycle here, as we need some error checking in
-      # place (even though we will ignore errors)
-      $storage->dbh_do (sub { $_[1]->do($line) });
-    }
-    catch {
-      carp "$_ (running '${line}')"
-    }
-    $storage->_query_end($line);
-  };
-  my @statements = $self->deployment_statements();
-  if (@statements > 1) {
-    foreach my $statement (@statements) {
-      $deploy->( $statement );
-    }
-  }
-  elsif (@statements == 1) {
-    foreach my $line ( split(";\n", $statements[0])) {
-      $deploy->( $line );
-    }
-  }
-}
-
-method backup { $self->storage->backup($self->backup_directory) }
+  my $ddl = $self->_deploy;
 
-method install($new_version) {
-  carp 'Install not possible as versions table already exists in database'
-    if $self->is_installed;
-
-  $new_version ||= $self->schema_version;
+  $self->version_storage->add_database_version({
+    version     => $self->to_version,
+    ddl         => $ddl,
+  });
+}
 
-  if ($new_version) {
-    $self->deploy();
+sub upgrade {
+  my $self = shift;
+  while ( my $version_list = $self->next_version_set ) {
+    $self->_upgrade_single_step($version_list);
 
-    $self->version_rs->create({
-      version     => $new_version,
+    $self->add_database_version({
+      version     => $version_list->[-1],
       # ddl         => $ddl,
       # upgrade_sql => $upgrade_sql,
     });
   }
 }
 
-method create_upgrade_path { }
-
-method ordered_schema_versions { undef }
-
-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;
-}
+method backup { $self->storage->backup($self->backup_directory) }
 
 __PACKAGE__->meta->make_immutable;
 
@@ -268,4 +94,4 @@ __PACKAGE__->meta->make_immutable;
 
 __END__
 
-vim: ts=2,sw=2,expandtab
+vim: ts=2 sw=2 expandtab