1 package DBIx::Class::DeploymentHandler::DeployMethod::SQL::Translator;
3 use Method::Signatures::Simple;
6 require SQL::Translator::Diff;
7 require DBIx::Class::Storage; # loaded for type constraint
9 with 'DBIx::Class::DeploymentHandler::HandlesDeploy';
13 isa => 'DBIx::Class::Storage',
18 method _build_storage {
19 my $s = $self->schema->storage;
20 $s->_determine_driver;
27 default => sub { {} },
29 has upgrade_directory => (
37 isa => 'DBIx::Class::ResultSet',
40 handles => [qw( is_installed db_version )],
43 method _build_version_rs {
44 $self->schema->set_us_up_the_bomb;
45 $self->schema->resultset('__VERSION')
50 isa => 'DBIx::Class::DeploymentHandler::Databases',
52 default => sub { [qw( MySQL SQLite PostgreSQL )] },
56 isa => 'DBIx::Class::Schema',
59 handles => [qw( schema_version )],
63 isa => 'ArrayRef[Str]',
67 method _ddl_filename($type, $versions, $dir) {
68 my $filename = ref $self->schema;
69 $filename =~ s/::/-/g;
71 $filename = File::Spec->catfile(
72 $dir, "$filename-" . join( q(-), @{$versions} ) . "-$type.sql"
78 method _deployment_statements {
79 my $dir = $self->upgrade_directory;
80 my $schema = $self->schema;
81 my $type = $self->storage->sqlt_type;
82 my $sqltargs = $self->sqltargs;
83 my $version = $self->schema_version || '1.x';
85 my $filename = $self->_ddl_filename($type, [ $version ], $dir);
88 open $file, q(<), $filename
89 or carp "Can't open $filename ($!)";
92 return join '', @rows;
95 # sources needs to be a parser arg, but for simplicty allow at top level
97 $sqltargs->{parser_args}{sources} = delete $sqltargs->{sources}
98 if exists $sqltargs->{sources};
100 my $tr = SQL::Translator->new(
101 producer => "SQL::Translator::Producer::${type}",
103 parser => 'SQL::Translator::Parser::DBIx::Class',
110 @ret = $tr->translate;
113 $ret[0] = $tr->translate;
116 $schema->throw_exception( 'Unable to produce deployment statements: ' . $tr->error)
117 unless (@ret && defined $ret[0]);
119 return $wa ? @ret : $ret[0];
124 my $storage = $self->storage;
128 return if(!$line || $line =~ /^--|^BEGIN TRANSACTION|^COMMIT|^\s+$/);
129 $storage->_query_start($line);
131 # do a dbh_do cycle here, as we need some error checking in
132 # place (even though we will ignore errors)
133 $storage->dbh_do (sub { $_[1]->do($line) });
136 carp "$_ (running '${line}')"
138 $storage->_query_end($line);
140 my @statements = $self->_deployment_statements();
141 if (@statements > 1) {
142 foreach my $statement (@statements) {
143 $deploy->( $statement );
146 elsif (@statements == 1) {
147 foreach my $line ( split(";\n", $statements[0])) {
153 sub prepare_install {
155 my $schema = $self->schema;
156 my $databases = $self->databases;
157 my $dir = $self->upgrade_directory;
158 my $sqltargs = $self->sqltargs;
160 carp "Upgrade directory $dir does not exist, using ./\n";
164 my $version = $schema->schema_version || '1.x';
165 my $schema_version = $schema->schema_version || '1.x';
166 $version ||= $schema_version;
170 ignore_constraint_names => 1,
171 ignore_index_names => 1,
175 my $sqlt = SQL::Translator->new( $sqltargs );
177 $sqlt->parser('SQL::Translator::Parser::DBIx::Class');
178 my $sqlt_schema = $sqlt->translate({ data => $schema })
179 or $self->throw_exception ($sqlt->error);
181 foreach my $db (@$databases) {
183 $sqlt->{schema} = $sqlt_schema;
184 $sqlt->producer($db);
186 my $filename = $self->_ddl_filename($db, [ $version ], $dir);
187 if (-e $filename && ($version eq $schema_version )) {
188 # if we are dumping the current version, overwrite the DDL
189 carp "Overwriting existing DDL file - $filename";
193 my $output = $sqlt->translate;
195 carp("Failed to translate to $db, skipping. (" . $sqlt->error . ")");
199 unless( open $file, q(>), $filename ) {
200 $self->throw_exception("Can't open $filename for writing ($!)");
203 print {$file} $output;
209 my ($self, $version, $preversion) = @_;
210 my $schema = $self->schema;
211 my $databases = $self->databases;
212 my $dir = $self->upgrade_directory;
213 my $sqltargs = $self->sqltargs;
216 carp "Upgrade directory $dir does not exist, using ./\n";
220 my $schema_version = $schema->schema_version || '1.x';
221 $version ||= $schema_version;
225 ignore_constraint_names => 1,
226 ignore_index_names => 1,
230 my $sqlt = SQL::Translator->new( $sqltargs );
232 $sqlt->parser('SQL::Translator::Parser::DBIx::Class');
233 my $sqlt_schema = $sqlt->translate({ data => $schema })
234 or $self->throw_exception ($sqlt->error);
236 foreach my $db (@$databases) {
238 $sqlt->{schema} = $sqlt_schema;
239 $sqlt->producer($db);
241 my $prefilename = $self->_ddl_filename($db, [ $preversion ], $dir);
242 unless(-e $prefilename) {
243 carp("No previous schema file found ($prefilename)");
247 my $diff_file = $self->_ddl_filename($db, [ $preversion, $version ], $dir );
249 carp("Overwriting existing diff file - $diff_file");
255 my $t = SQL::Translator->new({
261 $t->parser( $db ) # could this really throw an exception?
262 or $self->throw_exception ($t->error);
264 my $out = $t->translate( $prefilename )
265 or $self->throw_exception ($t->error);
267 $source_schema = $t->schema;
269 $source_schema->name( $prefilename )
270 unless $source_schema->name;
273 # The "new" style of producers have sane normalization and can support
274 # diffing a SQL file against a DBIC->SQLT schema. Old style ones don't
275 # And we have to diff parsed SQL against parsed SQL.
276 my $dest_schema = $sqlt_schema;
278 unless ( "SQL::Translator::Producer::$db"->can('preprocess_schema') ) {
279 my $t = SQL::Translator->new({
285 $t->parser( $db ) # could this really throw an exception?
286 or $self->throw_exception ($t->error);
288 my $filename = $self->_ddl_filename($db, [ $version ], $dir);
289 my $out = $t->translate( $filename )
290 or $self->throw_exception ($t->error);
292 $dest_schema = $t->schema;
294 $dest_schema->name( $filename )
295 unless $dest_schema->name;
298 my $diff = SQL::Translator::Diff::schema_diff(
304 unless(open $file, q(>), $diff_file) {
305 $self->throw_exception("Can't write to $diff_file ($!)");
313 method _read_sql_file($file) {
316 open my $fh, '<', $file or carp("Can't open upgrade file, $file ($!)");
317 my @data = split /\n/, join '', <$fh>;
323 !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/m
330 sub _upgrade_single_step {
332 my @version_set = @{ shift @_ };
333 my $db_version = $self->db_version;
334 my $upgrade_file = $self->_ddl_filename(
335 $self->storage->sqlt_type,
337 $self->upgrade_directory,
340 unless (-f $upgrade_file) {
342 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
346 carp "DB version ($db_version) is lower than the schema version (".$self->schema_version."). Attempting upgrade.\n";
348 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
349 $self->schema->txn_do(sub { $self->_do_upgrade });
351 $self->version_rs->create({
352 version => $version_set[-1],
354 # upgrade_sql => $upgrade_sql,
358 method _do_upgrade { $self->_run_upgrade(qr/.*?/) }
360 method _run_upgrade($stm) {
361 return unless $self->_filedata;
362 my @statements = grep { $_ =~ $stm } @{$self->_filedata};
365 $self->storage->debugobj->query_start($_) if $self->storage->debug;
366 $self->_apply_statement($_);
367 $self->storage->debugobj->query_end($_) if $self->storage->debug;
371 method _apply_statement($statement) {
373 $self->storage->dbh->do($_) or carp "SQL was: $_"
376 __PACKAGE__->meta->make_immutable;
382 vim: ts=2 sw=2 expandtab