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
11 with 'DBIx::Class::DeploymentHandler::HandlesDeploy';
16 isa => 'DBIx::Class::Schema',
19 handles => [qw( schema_version )],
23 isa => 'DBIx::Class::Storage',
28 method _build_storage {
29 my $s = $self->schema->storage;
30 $s->_determine_driver;
37 default => sub { {} },
39 has upgrade_directory => (
48 isa => 'DBIx::Class::DeploymentHandler::Databases',
50 default => sub { [qw( MySQL SQLite PostgreSQL )] },
54 isa => 'ArrayRef[Str]',
64 method __ddl_consume_with_prefix($type, $versions, $prefix) {
65 my $base_dir = $self->upgrade_directory;
67 my $main = File::Spec->catfile( $base_dir, $type );
68 my $generic = File::Spec->catfile( $base_dir, '_generic' );
69 my $common = File::Spec->catfile( $base_dir, '_common', $prefix, join q(-), @{$versions} );
73 $dir = File::Spec->catfile($main, $prefix, join q(-), @{$versions})
74 } elsif (-d $generic) {
75 $dir = File::Spec->catfile($main, $prefix, join q(-), @{$versions})
80 opendir my($dh), $dir;
81 my %files = map { $_ => "$dir/$_" } grep { /\.sql$/ && -f "$dir/$_" } readdir($dh);
85 opendir my($dh), $common;
86 for my $filename (grep { /\.sql$/ && -f "$common/$_" } readdir($dh)) {
87 unless ($files{$filename}) {
88 $files{$filename} = "$common/$_";
94 return [@files{sort keys %files}]
97 method _ddl_schema_consume_filenames($type, $version) {
98 $self->__ddl_consume_with_prefix($type, [ $version ], 'schema')
101 method _ddl_schema_produce_filename($type, $version) {
102 my $base_dir = $self->upgrade_directory;
103 my $dirname = File::Spec->catfile(
104 $base_dir, $type, 'schema', $version
106 File::Path::mkpath($dirname) unless -d $dirname;
108 return File::Spec->catfile(
109 $dirname, '001-auto.sql'
113 method _ddl_schema_up_consume_filenames($type, $versions) {
114 $self->__ddl_consume_with_prefix($type, $versions, 'up')
117 method _ddl_schema_down_consume_filenames($type, $versions) {
118 $self->__ddl_consume_with_prefix($type, $versions, 'down')
121 method _ddl_schema_up_produce_filename($type, $versions) {
122 my $dir = $self->upgrade_directory;
124 my $dirname = File::Spec->catfile(
125 $dir, $type, 'up', join( q(-), @{$versions} )
127 File::Path::mkpath($dirname) unless -d $dirname;
129 return File::Spec->catfile(
130 $dirname, '001-auto.sql'
134 method _ddl_schema_down_produce_filename($type, $versions, $dir) {
135 my $dirname = File::Spec->catfile(
136 $dir, $type, 'down', join( q(-), @{$versions} )
138 File::Path::mkpath($dirname) unless -d $dirname;
140 return File::Spec->catfile(
141 $dirname, '001-auto.sql'
147 my $storage = $self->storage;
149 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
151 my @sql = map @{$self->_read_sql_file($_)}, @{$self->_ddl_schema_consume_filenames(
152 $self->storage->sqlt_type,
153 $self->schema_version
156 foreach my $line (@sql) {
157 $storage->_query_start($line);
159 # do a dbh_do cycle here, as we need some error checking in
160 # place (even though we will ignore errors)
161 $storage->dbh_do (sub { $_[1]->do($line) });
164 carp "$_ (running '${line}')"
166 $storage->_query_end($line);
169 $guard->commit if $self->txn_wrap;
170 return join "\n", @sql;
173 sub prepare_install {
175 my $schema = $self->schema;
176 my $databases = $self->databases;
177 my $dir = $self->upgrade_directory;
178 my $sqltargs = $self->sqltargs;
179 my $version = $schema->schema_version;
181 my $sqlt = SQL::Translator->new({
183 ignore_constraint_names => 1,
184 ignore_index_names => 1,
185 parser => 'SQL::Translator::Parser::DBIx::Class',
189 my $sqlt_schema = $sqlt->translate( data => $schema )
190 or $self->throw_exception($sqlt->error);
192 foreach my $db (@$databases) {
194 $sqlt->{schema} = $sqlt_schema;
195 $sqlt->producer($db);
197 my $filename = $self->_ddl_schema_produce_filename($db, $version, $dir);
199 carp "Overwriting existing DDL file - $filename";
203 my $output = $sqlt->translate;
205 carp("Failed to translate to $db, skipping. (" . $sqlt->error . ")");
209 unless( open $file, q(>), $filename ) {
210 $self->throw_exception("Can't open $filename for writing ($!)");
213 print {$file} $output;
218 sub prepare_upgrade {
219 my ($self, $from_version, $to_version, $version_set) = @_;
221 $from_version ||= $self->db_version;
222 $to_version ||= $self->schema_version;
224 # for updates prepared automatically (rob's stuff)
225 # one would want to explicitly set $version_set to
227 $version_set ||= [$from_version, $to_version];
229 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'up');
232 sub prepare_downgrade {
233 my ($self, $from_version, $to_version, $version_set) = @_;
235 $from_version ||= $self->db_version;
236 $to_version ||= $self->schema_version;
238 # for updates prepared automatically (rob's stuff)
239 # one would want to explicitly set $version_set to
241 $version_set ||= [$from_version, $to_version];
243 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'down');
246 method _prepare_changegrade($from_version, $to_version, $version_set, $direction) {
247 my $schema = $self->schema;
248 my $databases = $self->databases;
249 my $dir = $self->upgrade_directory;
250 my $sqltargs = $self->sqltargs;
252 my $schema_version = $schema->schema_version;
256 ignore_constraint_names => 1,
257 ignore_index_names => 1,
261 my $sqlt = SQL::Translator->new( $sqltargs );
263 $sqlt->parser('SQL::Translator::Parser::DBIx::Class');
264 my $sqlt_schema = $sqlt->translate( data => $schema )
265 or $self->throw_exception ($sqlt->error);
267 foreach my $db (@$databases) {
269 $sqlt->{schema} = $sqlt_schema;
270 $sqlt->producer($db);
272 my $prefilename = $self->_ddl_schema_produce_filename($db, $from_version, $dir);
273 unless(-e $prefilename) {
274 carp("No previous schema file found ($prefilename)");
277 my $diff_file_method = "_ddl_schema_${direction}_produce_filename";
278 my $diff_file = $self->$diff_file_method($db, $version_set, $dir );
280 carp("Overwriting existing $direction-diff file - $diff_file");
286 my $t = SQL::Translator->new({
292 $t->parser( $db ) # could this really throw an exception?
293 or $self->throw_exception ($t->error);
295 my $out = $t->translate( $prefilename )
296 or $self->throw_exception ($t->error);
298 $source_schema = $t->schema;
300 $source_schema->name( $prefilename )
301 unless $source_schema->name;
304 # The "new" style of producers have sane normalization and can support
305 # diffing a SQL file against a DBIC->SQLT schema. Old style ones don't
306 # And we have to diff parsed SQL against parsed SQL.
307 my $dest_schema = $sqlt_schema;
309 unless ( "SQL::Translator::Producer::$db"->can('preprocess_schema') ) {
310 my $t = SQL::Translator->new({
316 $t->parser( $db ) # could this really throw an exception?
317 or $self->throw_exception ($t->error);
319 my $filename = $self->_ddl_schema_produce_filename($db, $to_version, $dir);
320 my $out = $t->translate( $filename )
321 or $self->throw_exception ($t->error);
323 $dest_schema = $t->schema;
325 $dest_schema->name( $filename )
326 unless $dest_schema->name;
329 my $diff = SQL::Translator::Diff::schema_diff(
335 unless(open $file, q(>), $diff_file) {
336 $self->throw_exception("Can't write to $diff_file ($!)");
344 method _read_sql_file($file) {
347 open my $fh, '<', $file or carp("Can't open sql file, $file ($!)");
348 my @data = split /;\n/, join '', <$fh>;
352 $_ && # remove blank lines
353 !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/ # strip txn's
355 s/^\s+//; s/\s+$//; # trim whitespace
356 join '', grep { !/^--/ } split /\n/ # remove comments
362 # these are exactly the same for now
363 sub _downgrade_single_step {
365 my @version_set = @{ shift @_ };
366 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
367 $self->storage->sqlt_type,
371 for my $upgrade_file (@upgrade_files) {
372 unless (-f $upgrade_file) {
374 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
378 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
380 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
382 $guard->commit if $self->txn_wrap;
386 sub _upgrade_single_step {
388 my @version_set = @{ shift @_ };
389 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
390 $self->storage->sqlt_type,
394 for my $upgrade_file (@upgrade_files) {
395 unless (-f $upgrade_file) {
397 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
401 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
402 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
404 $guard->commit if $self->txn_wrap;
408 method _do_upgrade { $self->_run_upgrade(qr/.*?/) }
410 method _run_upgrade($stm) {
411 return unless $self->_filedata;
412 my @statements = grep { $_ =~ $stm } @{$self->_filedata};
415 $self->storage->debugobj->query_start($_) if $self->storage->debug;
416 $self->_apply_statement($_);
417 $self->storage->debugobj->query_end($_) if $self->storage->debug;
421 method _apply_statement($statement) {
423 $self->storage->dbh->do($_) or carp "SQL was: $_"
430 vim: ts=2 sw=2 expandtab