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;
+
+BEGIN {
+ use Moose::Util::TypeConstraints;
+ subtype 'DBIx::Class::DeploymentHandler::Databases'
+ => as 'ArrayRef[Str]';
+
+ coerce 'DBIx::Class::DeploymentHandler::Databases'
+ => from 'Str'
+ => via { [$_] };
+ no Moose::Util::TypeConstraints;
+}
has schema => (
isa => 'DBIx::Class::Schema',
is => 'ro',
required => 1,
- handles => [qw( schema_version )],
+ handles => [qw( ddl_filename schema_version )],
);
has upgrade_directory => (
isa => 'Str',
is => 'ro',
required => 1,
- default => 'upgrades',
+ default => 'sql',
);
has backup_directory => (
}
has _filedata => (
- isa => 'Str',
+ isa => 'ArrayRef[Str]',
is => 'rw',
);
handles => [qw( is_installed db_version )],
);
+has databases => (
+ coerce => 1,
+ isa => 'DBIx::Class::DeploymentHandler::Databases',
+ is => 'ro',
+ default => sub { [qw( MySQL SQLite PostgreSQL )] },
+);
+
+has sqltargs => (
+ isa => 'HashRef',
+ is => 'ro',
+ default => sub { {} },
+);
+
+method deployment_statements {
+ my $dir = $self->upgrade_directory;
+ my $schema = $self->schema;
+ my $type = $self->storage->sqlt_type;
+ my $sqltargs = $self->sqltargs;
+ my $version = $schema->schema_version || '1.x';
+
+ my $filename = $schema->ddl_filename($type, $version, $dir);
+ if(-f $filename)
+ {
+ my $file;
+ open($file, "<$filename")
+ or $self->throw_exception("Can't open $filename ($!)");
+ my @rows = <$file>;
+ close($file);
+ return join('', @rows);
+ }
+
+ # sources needs to be a parser arg, but for simplicty allow at top level
+ # coming in
+ $sqltargs->{parser_args}{sources} = delete $sqltargs->{sources}
+ if exists $sqltargs->{sources};
+
+ my $tr = SQL::Translator->new(
+ producer => "SQL::Translator::Producer::${type}",
+ %$sqltargs,
+ parser => 'SQL::Translator::Parser::DBIx::Class',
+ data => $schema,
+ );
+
+ my @ret;
+ my $wa = wantarray;
+ if ($wa) {
+ @ret = $tr->translate;
+ }
+ else {
+ $ret[0] = $tr->translate;
+ }
+
+ $schema->throw_exception( 'Unable to produce deployment statements: ' . $tr->error)
+ unless (@ret && defined $ret[0]);
+
+ return $wa ? @ret : $ret[0];
+}
+
+method deploy {
+ my $schema = $self->schema;
+ my $type = undef;
+ my $sqltargs = $self->sqltargs;
+ my $dir = $self->upgrade_directory;
+ my $storage = $self->storage;
+
+ my $deploy = sub {
+ my $line = shift;
+ return if($line =~ /^--/);
+ return if(!$line);
+ # next if($line =~ /^DROP/m);
+ return if($line =~ /^BEGIN TRANSACTION/m);
+ return if($line =~ /^COMMIT/m);
+ return if $line =~ /^\s+$/; # skip whitespace only
+ $storage->_query_start($line);
+ eval {
+ # 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) });
+ };
+ if ($@) {
+ carp "$@ (running '${line}')"
+ }
+ $storage->_query_end($line);
+ };
+ my @statements = $self->deployment_statements($schema, $type, undef, $dir, { %{ $sqltargs || {} }, no_comments => 1 } );
+ if (@statements > 1) {
+ foreach my $statement (@statements) {
+ $deploy->( $statement );
+ }
+ }
+ elsif (@statements == 1) {
+ foreach my $line ( split(";\n", $statements[0])) {
+ $deploy->( $line );
+ }
+ }
+}
+
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->deploy();
$self->version_rs->create({
version => $new_version,
method create_upgrade_path { }
-method ordered_schema_versions { }
+method ordered_schema_versions { undef }
method upgrade {
my $db_version = $self->db_version;
});
}
+method create_ddl_dir($version, $preversion) {
+ my $schema = $self->schema;
+ my $databases = $self->databases;
+ my $dir = $self->upgrade_directory;
+ my $sqltargs = $self->sqltargs;
+ unless( -d $dir ) {
+ carp "Upgrade directory $dir does not exist, using ./\n";
+ $dir = "./";
+ }
+
+ my $schema_version = $schema->schema_version || '1.x';
+ $version ||= $schema_version;
+
+ $sqltargs = {
+ add_drop_table => 1,
+ ignore_constraint_names => 1,
+ ignore_index_names => 1,
+ %{$sqltargs || {}}
+ };
+
+ my $sqlt = SQL::Translator->new( $sqltargs );
+
+ $sqlt->parser('SQL::Translator::Parser::DBIx::Class');
+ my $sqlt_schema = $sqlt->translate({ data => $schema })
+ or $self->throw_exception ($sqlt->error);
+
+ foreach my $db (@$databases) {
+ $sqlt->reset;
+ $sqlt->{schema} = $sqlt_schema;
+ $sqlt->producer($db);
+
+ my $filename = $self->ddl_filename($db, $version, $dir);
+ if (-e $filename && ($version eq $schema_version )) {
+ # if we are dumping the current version, overwrite the DDL
+ carp "Overwriting existing DDL file - $filename";
+ unlink $filename;
+ }
+
+ my $output = $sqlt->translate;
+ if(!$output) {
+ carp("Failed to translate to $db, skipping. (" . $sqlt->error . ")");
+ next;
+ }
+ my $file;
+ unless( open $file, q(>), $filename ) {
+ $self->throw_exception("Can't open $filename for writing ($!)");
+ next;
+ }
+ print {$file} $output;
+ close $file;
+
+ next unless $preversion;
+
+ require SQL::Translator::Diff;
+
+ my $prefilename = $self->ddl_filename($db, $preversion, $dir);
+ unless(-e $prefilename) {
+ carp("No previous schema file found ($prefilename)");
+ next;
+ }
+
+ my $diff_file = $self->ddl_filename($db, $version, $dir, $preversion);
+ if(-e $diff_file) {
+ carp("Overwriting existing diff file - $diff_file");
+ unlink $diff_file;
+ }
+
+ my $source_schema;
+ {
+ my $t = SQL::Translator->new({
+ %{$sqltargs},
+ debug => 0,
+ trace => 0,
+ });
+
+ $t->parser( $db ) # could this really throw an exception?
+ or $self->throw_exception ($t->error);
+
+ my $out = $t->translate( $prefilename )
+ or $self->throw_exception ($t->error);
+
+ $source_schema = $t->schema;
+
+ $source_schema->name( $prefilename )
+ unless $source_schema->name;
+ }
+
+ # The "new" style of producers have sane normalization and can support
+ # diffing a SQL file against a DBIC->SQLT schema. Old style ones don't
+ # And we have to diff parsed SQL against parsed SQL.
+ my $dest_schema = $sqlt_schema;
+
+ unless ( "SQL::Translator::Producer::$db"->can('preprocess_schema') ) {
+ my $t = SQL::Translator->new({
+ %{$sqltargs},
+ debug => 0,
+ trace => 0,
+ });
+
+ $t->parser( $db ) # could this really throw an exception?
+ or $self->throw_exception ($t->error);
+
+ my $out = $t->translate( $filename )
+ or $self->throw_exception ($t->error);
+
+ $dest_schema = $t->schema;
+
+ $dest_schema->name( $filename )
+ unless $dest_schema->name;
+ }
+
+ my $diff = SQL::Translator::Diff::schema_diff(
+ $source_schema, $db,
+ $dest_schema, $db,
+ $sqltargs
+ );
+ unless(open $file, q(>), $diff_file) {
+ $self->throw_exception("Can't write to $diff_file ($!)");
+ next;
+ }
+ print {$file} $diff;
+ close $file;
+ }
+}
+
method do_upgrade { $self->run_upgrade(qr/.*?/) }
method run_upgrade($stm) {
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