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
10 use DBIx::Class::DeploymentHandler::Types;
13 with 'DBIx::Class::DeploymentHandler::HandlesDeploy';
18 isa => 'DBIx::Class::Schema',
21 handles => [qw( schema_version )],
25 isa => 'DBIx::Class::Storage',
30 method _build_storage {
31 my $s = $self->schema->storage;
32 $s->_determine_driver;
39 default => sub { {} },
41 has upgrade_directory => (
50 isa => 'DBIx::Class::DeploymentHandler::Databases',
52 default => sub { [qw( MySQL SQLite PostgreSQL )] },
56 isa => 'ArrayRef[Str]',
66 method __ddl_consume_with_prefix($type, $versions, $prefix) {
67 my $base_dir = $self->upgrade_directory;
69 my $main = File::Spec->catfile( $base_dir, $type );
70 my $generic = File::Spec->catfile( $base_dir, '_generic' );
71 my $common = File::Spec->catfile( $base_dir, '_common', $prefix, join q(-), @{$versions} );
75 $dir = File::Spec->catfile($main, $prefix, join q(-), @{$versions})
76 } elsif (-d $generic) {
77 $dir = File::Spec->catfile($main, $prefix, join q(-), @{$versions})
82 opendir my($dh), $dir;
83 my %files = map { $_ => "$dir/$_" } grep { /\.sql$/ && -f "$dir/$_" } readdir($dh);
87 opendir my($dh), $common;
88 for my $filename (grep { /\.sql$/ && -f "$common/$_" } readdir($dh)) {
89 unless ($files{$filename}) {
90 $files{$filename} = "$common/$_";
96 return [@files{sort keys %files}]
99 method _ddl_schema_consume_filenames($type, $version) {
100 $self->__ddl_consume_with_prefix($type, [ $version ], 'schema')
103 method _ddl_schema_produce_filename($type, $version) {
104 my $base_dir = $self->upgrade_directory;
105 my $dirname = File::Spec->catfile(
106 $base_dir, $type, 'schema', $version
108 File::Path::mkpath($dirname) unless -d $dirname;
110 return File::Spec->catfile(
111 $dirname, '001-auto.sql'
115 method _ddl_schema_up_consume_filenames($type, $versions) {
116 $self->__ddl_consume_with_prefix($type, $versions, 'up')
119 method _ddl_schema_down_consume_filenames($type, $versions) {
120 $self->__ddl_consume_with_prefix($type, $versions, 'down')
123 method _ddl_schema_up_produce_filename($type, $versions) {
124 my $dir = $self->upgrade_directory;
126 my $dirname = File::Spec->catfile(
127 $dir, $type, 'up', join( q(-), @{$versions} )
129 File::Path::mkpath($dirname) unless -d $dirname;
131 return File::Spec->catfile(
132 $dirname, '001-auto.sql'
136 method _ddl_schema_down_produce_filename($type, $versions, $dir) {
137 my $dirname = File::Spec->catfile(
138 $dir, $type, 'down', join( q(-), @{$versions} )
140 File::Path::mkpath($dirname) unless -d $dirname;
142 return File::Spec->catfile(
143 $dirname, '001-auto.sql'
149 my $storage = $self->storage;
151 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
153 my @sql = map @{$self->_read_sql_file($_)}, @{$self->_ddl_schema_consume_filenames(
154 $self->storage->sqlt_type,
155 $self->schema_version
158 foreach my $line (@sql) {
159 $storage->_query_start($line);
161 # do a dbh_do cycle here, as we need some error checking in
162 # place (even though we will ignore errors)
163 $storage->dbh_do (sub { $_[1]->do($line) });
166 carp "$_ (running '${line}')"
168 $storage->_query_end($line);
171 $guard->commit if $self->txn_wrap;
172 return join "\n", @sql;
175 sub prepare_install {
177 my $schema = $self->schema;
178 my $databases = $self->databases;
179 my $dir = $self->upgrade_directory;
180 my $sqltargs = $self->sqltargs;
181 my $version = $schema->schema_version;
183 my $sqlt = SQL::Translator->new({
185 ignore_constraint_names => 1,
186 ignore_index_names => 1,
187 parser => 'SQL::Translator::Parser::DBIx::Class',
191 my $sqlt_schema = $sqlt->translate( data => $schema )
192 or $self->throw_exception($sqlt->error);
194 foreach my $db (@$databases) {
196 $sqlt->{schema} = $sqlt_schema;
197 $sqlt->producer($db);
199 my $filename = $self->_ddl_schema_produce_filename($db, $version, $dir);
201 carp "Overwriting existing DDL file - $filename";
205 my $output = $sqlt->translate;
207 carp("Failed to translate to $db, skipping. (" . $sqlt->error . ")");
211 unless( open $file, q(>), $filename ) {
212 $self->throw_exception("Can't open $filename for writing ($!)");
215 print {$file} $output;
220 sub prepare_upgrade {
221 my ($self, $from_version, $to_version, $version_set) = @_;
223 $from_version ||= $self->db_version;
224 $to_version ||= $self->schema_version;
226 # for updates prepared automatically (rob's stuff)
227 # one would want to explicitly set $version_set to
229 $version_set ||= [$from_version, $to_version];
231 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'up');
234 sub prepare_downgrade {
235 my ($self, $from_version, $to_version, $version_set) = @_;
237 $from_version ||= $self->db_version;
238 $to_version ||= $self->schema_version;
240 # for updates prepared automatically (rob's stuff)
241 # one would want to explicitly set $version_set to
243 $version_set ||= [$from_version, $to_version];
245 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'down');
248 method _prepare_changegrade($from_version, $to_version, $version_set, $direction) {
249 my $schema = $self->schema;
250 my $databases = $self->databases;
251 my $dir = $self->upgrade_directory;
252 my $sqltargs = $self->sqltargs;
254 my $schema_version = $schema->schema_version;
258 ignore_constraint_names => 1,
259 ignore_index_names => 1,
263 my $sqlt = SQL::Translator->new( $sqltargs );
265 $sqlt->parser('SQL::Translator::Parser::DBIx::Class');
266 my $sqlt_schema = $sqlt->translate( data => $schema )
267 or $self->throw_exception ($sqlt->error);
269 foreach my $db (@$databases) {
271 $sqlt->{schema} = $sqlt_schema;
272 $sqlt->producer($db);
274 my $prefilename = $self->_ddl_schema_produce_filename($db, $from_version, $dir);
275 unless(-e $prefilename) {
276 carp("No previous schema file found ($prefilename)");
279 my $diff_file_method = "_ddl_schema_${direction}_produce_filename";
280 my $diff_file = $self->$diff_file_method($db, $version_set, $dir );
282 carp("Overwriting existing $direction-diff file - $diff_file");
288 my $t = SQL::Translator->new({
294 $t->parser( $db ) # could this really throw an exception?
295 or $self->throw_exception ($t->error);
297 my $out = $t->translate( $prefilename )
298 or $self->throw_exception ($t->error);
300 $source_schema = $t->schema;
302 $source_schema->name( $prefilename )
303 unless $source_schema->name;
306 # The "new" style of producers have sane normalization and can support
307 # diffing a SQL file against a DBIC->SQLT schema. Old style ones don't
308 # And we have to diff parsed SQL against parsed SQL.
309 my $dest_schema = $sqlt_schema;
311 unless ( "SQL::Translator::Producer::$db"->can('preprocess_schema') ) {
312 my $t = SQL::Translator->new({
318 $t->parser( $db ) # could this really throw an exception?
319 or $self->throw_exception ($t->error);
321 my $filename = $self->_ddl_schema_produce_filename($db, $to_version, $dir);
322 my $out = $t->translate( $filename )
323 or $self->throw_exception ($t->error);
325 $dest_schema = $t->schema;
327 $dest_schema->name( $filename )
328 unless $dest_schema->name;
331 my $diff = SQL::Translator::Diff::schema_diff(
337 unless(open $file, q(>), $diff_file) {
338 $self->throw_exception("Can't write to $diff_file ($!)");
346 method _read_sql_file($file) {
349 open my $fh, '<', $file or carp("Can't open sql file, $file ($!)");
350 my @data = split /;\n/, join '', <$fh>;
354 $_ && # remove blank lines
355 !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/ # strip txn's
357 s/^\s+//; s/\s+$//; # trim whitespace
358 join '', grep { !/^--/ } split /\n/ # remove comments
364 # these are exactly the same for now
365 sub _downgrade_single_step {
367 my @version_set = @{ shift @_ };
368 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
369 $self->storage->sqlt_type,
373 for my $upgrade_file (@upgrade_files) {
374 unless (-f $upgrade_file) {
376 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
380 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
382 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
384 $guard->commit if $self->txn_wrap;
388 sub _upgrade_single_step {
390 my @version_set = @{ shift @_ };
391 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
392 $self->storage->sqlt_type,
396 for my $upgrade_file (@upgrade_files) {
397 unless (-f $upgrade_file) {
399 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
403 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
404 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
406 $guard->commit if $self->txn_wrap;
410 method _do_upgrade { $self->_run_upgrade(qr/.*?/) }
412 method _run_upgrade($stm) {
413 return unless $self->_filedata;
414 my @statements = grep { $_ =~ $stm } @{$self->_filedata};
417 $self->storage->debugobj->query_start($_) if $self->storage->debug;
418 $self->_apply_statement($_);
419 $self->storage->debugobj->query_end($_) if $self->storage->debug;
423 method _apply_statement($statement) {
425 $self->storage->dbh->do($_) or carp "SQL was: $_"
432 vim: ts=2 sw=2 expandtab