1 package DBIx::Class::DeploymentHandler::DeployMethod::SQL::Translator;
5 use Carp qw( carp croak );
7 use Method::Signatures::Simple;
11 require SQL::Translator::Diff;
13 require DBIx::Class::Storage; # loaded for type constraint
14 use DBIx::Class::DeploymentHandler::Types;
16 use File::Path 'mkpath';
17 use File::Spec::Functions;
19 with 'DBIx::Class::DeploymentHandler::HandlesDeploy';
22 isa => 'DBIx::Class::Schema',
25 handles => [qw( schema_version )],
29 isa => 'DBIx::Class::Storage',
34 method _build_storage {
35 my $s = $self->schema->storage;
36 $s->_determine_driver;
43 default => sub { {} },
45 has upgrade_directory => (
54 isa => 'DBIx::Class::DeploymentHandler::Databases',
56 default => sub { [qw( MySQL SQLite PostgreSQL )] },
60 isa => 'ArrayRef[Str]',
70 method __ddl_consume_with_prefix($type, $versions, $prefix) {
71 my $base_dir = $self->upgrade_directory;
73 my $main = catfile( $base_dir, $type );
74 my $generic = catfile( $base_dir, '_generic' );
76 catfile( $base_dir, '_common', $prefix, join q(-), @{$versions} );
80 $dir = catfile($main, $prefix, join q(-), @{$versions})
81 } elsif (-d $generic) {
82 $dir = catfile($generic, $prefix, join q(-), @{$versions});
84 croak "neither $main or $generic exist; please write/generate some SQL";
87 opendir my($dh), $dir;
88 my %files = map { $_ => "$dir/$_" } grep { /\.sql$/ && -f "$dir/$_" } readdir $dh;
92 opendir my($dh), $common;
93 for my $filename (grep { /\.sql$/ && -f catfile($common,$_) } readdir $dh) {
94 unless ($files{$filename}) {
95 $files{$filename} = catfile($common,$filename);
101 return [@files{sort keys %files}]
104 method _ddl_schema_consume_filenames($type, $version) {
105 $self->__ddl_consume_with_prefix($type, [ $version ], 'schema')
108 method _ddl_schema_produce_filename($type, $version) {
109 my $dirname = catfile( $self->upgrade_directory, $type, 'schema', $version );
110 mkpath($dirname) unless -d $dirname;
112 return catfile( $dirname, '001-auto.sql' );
115 method _ddl_schema_up_consume_filenames($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 = catfile( $dir, $type, 'up', join q(-), @{$versions});
127 mkpath($dirname) unless -d $dirname;
129 return catfile( $dirname, '001-auto.sql'
133 method _ddl_schema_down_produce_filename($type, $versions, $dir) {
134 my $dirname = catfile( $dir, $type, 'down', join q(-), @{$versions} );
135 mkpath($dirname) unless -d $dirname;
137 return catfile( $dirname, '001-auto.sql');
142 my $storage = $self->storage;
144 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
146 my @sql = map @{$self->_read_sql_file($_)}, @{$self->_ddl_schema_consume_filenames(
147 $self->storage->sqlt_type,
148 $self->schema_version
151 foreach my $line (@sql) {
152 $storage->_query_start($line);
154 # do a dbh_do cycle here, as we need some error checking in
155 # place (even though we will ignore errors)
156 $storage->dbh_do (sub { $_[1]->do($line) });
159 carp "$_ (running '${line}')"
161 $storage->_query_end($line);
164 $guard->commit if $self->txn_wrap;
165 return join "\n", @sql;
168 sub prepare_install {
170 my $schema = $self->schema;
171 my $databases = $self->databases;
172 my $dir = $self->upgrade_directory;
173 my $sqltargs = $self->sqltargs;
174 my $version = $schema->schema_version;
176 my $sqlt = SQL::Translator->new({
178 ignore_constraint_names => 1,
179 ignore_index_names => 1,
180 parser => 'SQL::Translator::Parser::DBIx::Class',
184 my $sqlt_schema = $sqlt->translate( data => $schema )
185 or $self->throw_exception($sqlt->error);
187 foreach my $db (@$databases) {
189 $sqlt->{schema} = $sqlt_schema;
190 $sqlt->producer($db);
192 my $filename = $self->_ddl_schema_produce_filename($db, $version, $dir);
194 carp "Overwriting existing DDL file - $filename";
198 my $output = $sqlt->translate;
200 carp("Failed to translate to $db, skipping. (" . $sqlt->error . ")");
204 unless( open $file, q(>), $filename ) {
205 $self->throw_exception("Can't open $filename for writing ($!)");
208 print {$file} $output;
213 sub prepare_upgrade {
214 my ($self, $from_version, $to_version, $version_set) = @_;
216 $from_version ||= '1.0'; #$self->database_version;
217 $to_version ||= $self->schema_version;
219 # for updates prepared automatically (rob's stuff)
220 # one would want to explicitly set $version_set to
222 $version_set ||= [$from_version, $to_version];
224 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'up');
227 sub prepare_downgrade {
228 my ($self, $from_version, $to_version, $version_set) = @_;
230 $from_version ||= $self->db_version;
231 $to_version ||= $self->schema_version;
233 # for updates prepared automatically (rob's stuff)
234 # one would want to explicitly set $version_set to
236 $version_set ||= [$from_version, $to_version];
238 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'down');
241 method _prepare_changegrade($from_version, $to_version, $version_set, $direction) {
242 my $schema = $self->schema;
243 my $databases = $self->databases;
244 my $dir = $self->upgrade_directory;
245 my $sqltargs = $self->sqltargs;
247 my $schema_version = $schema->schema_version;
251 ignore_constraint_names => 1,
252 ignore_index_names => 1,
256 my $sqlt = SQL::Translator->new( $sqltargs );
258 $sqlt->parser('SQL::Translator::Parser::DBIx::Class');
259 my $sqlt_schema = $sqlt->translate( data => $schema )
260 or $self->throw_exception ($sqlt->error);
262 foreach my $db (@$databases) {
264 $sqlt->{schema} = $sqlt_schema;
265 $sqlt->producer($db);
267 my $prefilename = $self->_ddl_schema_produce_filename($db, $from_version, $dir);
268 unless(-e $prefilename) {
269 carp("No previous schema file found ($prefilename)");
272 my $diff_file_method = "_ddl_schema_${direction}_produce_filename";
273 my $diff_file = $self->$diff_file_method($db, $version_set, $dir );
275 carp("Overwriting existing $direction-diff file - $diff_file");
281 my $t = SQL::Translator->new({
287 $t->parser( $db ) # could this really throw an exception?
288 or $self->throw_exception ($t->error);
290 my $out = $t->translate( $prefilename )
291 or $self->throw_exception ($t->error);
293 $source_schema = $t->schema;
295 $source_schema->name( $prefilename )
296 unless $source_schema->name;
299 # The "new" style of producers have sane normalization and can support
300 # diffing a SQL file against a DBIC->SQLT schema. Old style ones don't
301 # And we have to diff parsed SQL against parsed SQL.
302 my $dest_schema = $sqlt_schema;
304 unless ( "SQL::Translator::Producer::$db"->can('preprocess_schema') ) {
305 my $t = SQL::Translator->new({
311 $t->parser( $db ) # could this really throw an exception?
312 or $self->throw_exception ($t->error);
314 my $filename = $self->_ddl_schema_produce_filename($db, $to_version, $dir);
315 my $out = $t->translate( $filename )
316 or $self->throw_exception ($t->error);
318 $dest_schema = $t->schema;
320 $dest_schema->name( $filename )
321 unless $dest_schema->name;
324 my $diff = SQL::Translator::Diff::schema_diff(
330 unless(open $file, q(>), $diff_file) {
331 $self->throw_exception("Can't write to $diff_file ($!)");
339 method _read_sql_file($file) {
342 open my $fh, '<', $file or carp("Can't open sql file, $file ($!)");
343 my @data = split /;\n/, join '', <$fh>;
347 $_ && # remove blank lines
348 !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/ # strip txn's
350 s/^\s+//; s/\s+$//; # trim whitespace
351 join '', grep { !/^--/ } split /\n/ # remove comments
357 sub _downgrade_single_step {
359 my @version_set = @{ shift @_ };
360 my @downgrade_files = @{$self->_ddl_schema_down_consume_filenames(
361 $self->storage->sqlt_type,
365 for my $downgrade_file (@downgrade_files) {
366 unless (-f $downgrade_file) {
368 carp "Downgrade not possible, no downgrade file found ($downgrade_file), please create one\n";
372 $self->_filedata($self->_read_sql_file($downgrade_file)); # I don't like this --fREW 2010-02-22
374 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
376 $guard->commit if $self->txn_wrap;
380 sub _upgrade_single_step {
382 my @version_set = @{ shift @_ };
383 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
384 $self->storage->sqlt_type,
388 for my $upgrade_file (@upgrade_files) {
389 unless (-f $upgrade_file) {
391 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
395 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
396 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
398 $guard->commit if $self->txn_wrap;
402 method _do_upgrade { $self->_run_upgrade(qr/.*?/) }
404 method _run_upgrade($stm) {
405 return unless $self->_filedata;
406 my @statements = grep { $_ =~ $stm } @{$self->_filedata};
409 $self->storage->debugobj->query_start($_) if $self->storage->debug;
410 $self->_apply_statement($_);
411 $self->storage->debugobj->query_end($_) if $self->storage->debug;
415 method _apply_statement($statement) {
417 $self->storage->dbh->do($_) or carp "SQL was: $_"
424 vim: ts=2 sw=2 expandtab