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'
145 method _deployment_statements {
146 my $type = $self->storage->sqlt_type;
147 my $version = $self->schema_version;
149 for my $filename (@{$self->_ddl_schema_consume_filenames($type, $version)}) {
150 open my $file, q(<), $filename
151 or carp "Can't open $filename ($!)";
154 return join '', @rows;
160 my $storage = $self->storage;
162 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
164 foreach my $line ( split /;\n/, $self->_deployment_statements ) {
165 $line = join '', grep { !/^--/ } split /\n/, $line;
166 next if !$line || $line =~ /^BEGIN TRANSACTION|^COMMIT|^\s+$/;
167 $storage->_query_start($line);
169 # do a dbh_do cycle here, as we need some error checking in
170 # place (even though we will ignore errors)
171 $storage->dbh_do (sub { $_[1]->do($line) });
174 carp "$_ (running '${line}')"
176 $storage->_query_end($line);
179 $guard->commit if $self->txn_wrap;
182 sub prepare_install {
184 my $schema = $self->schema;
185 my $databases = $self->databases;
186 my $dir = $self->upgrade_directory;
187 my $sqltargs = $self->sqltargs;
188 my $version = $schema->schema_version;
191 carp "Upgrade directory $dir does not exist, using ./\n";
196 my $sqlt = SQL::Translator->new({
198 ignore_constraint_names => 1,
199 ignore_index_names => 1,
200 parser => 'SQL::Translator::Parser::DBIx::Class',
204 my $sqlt_schema = $sqlt->translate({ data => $schema })
205 or $self->throw_exception ($sqlt->error);
207 foreach my $db (@$databases) {
209 $sqlt->{schema} = $sqlt_schema;
210 $sqlt->producer($db);
212 my $filename = $self->_ddl_schema_produce_filename($db, $version, $dir);
214 carp "Overwriting existing DDL file - $filename";
218 my $output = $sqlt->translate;
220 carp("Failed to translate to $db, skipping. (" . $sqlt->error . ")");
224 unless( open $file, q(>), $filename ) {
225 $self->throw_exception("Can't open $filename for writing ($!)");
228 print {$file} $output;
233 sub prepare_upgrade {
234 my ($self, $from_version, $to_version, $version_set) = @_;
236 $from_version ||= $self->db_version;
237 $to_version ||= $self->schema_version;
239 # for updates prepared automatically (rob's stuff)
240 # one would want to explicitly set $version_set to
242 $version_set ||= [$from_version, $to_version];
244 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'up');
247 sub prepare_downgrade {
248 my ($self, $from_version, $to_version, $version_set) = @_;
250 $from_version ||= $self->db_version;
251 $to_version ||= $self->schema_version;
253 # for updates prepared automatically (rob's stuff)
254 # one would want to explicitly set $version_set to
256 $version_set ||= [$from_version, $to_version];
258 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'down');
261 method _prepare_changegrade($from_version, $to_version, $version_set, $direction) {
262 my $schema = $self->schema;
263 my $databases = $self->databases;
264 my $dir = $self->upgrade_directory;
265 my $sqltargs = $self->sqltargs;
267 my $schema_version = $schema->schema_version;
271 ignore_constraint_names => 1,
272 ignore_index_names => 1,
276 my $sqlt = SQL::Translator->new( $sqltargs );
278 $sqlt->parser('SQL::Translator::Parser::DBIx::Class');
279 my $sqlt_schema = $sqlt->translate({ data => $schema })
280 or $self->throw_exception ($sqlt->error);
282 foreach my $db (@$databases) {
284 $sqlt->{schema} = $sqlt_schema;
285 $sqlt->producer($db);
287 my $prefilename = $self->_ddl_schema_produce_filename($db, $from_version, $dir);
288 unless(-e $prefilename) {
289 carp("No previous schema file found ($prefilename)");
292 my $diff_file_method = "_ddl_schema_${direction}_produce_filename";
293 my $diff_file = $self->$diff_file_method($db, $version_set, $dir );
295 carp("Overwriting existing $direction-diff file - $diff_file");
301 my $t = SQL::Translator->new({
307 $t->parser( $db ) # could this really throw an exception?
308 or $self->throw_exception ($t->error);
310 my $out = $t->translate( $prefilename )
311 or $self->throw_exception ($t->error);
313 $source_schema = $t->schema;
315 $source_schema->name( $prefilename )
316 unless $source_schema->name;
319 # The "new" style of producers have sane normalization and can support
320 # diffing a SQL file against a DBIC->SQLT schema. Old style ones don't
321 # And we have to diff parsed SQL against parsed SQL.
322 my $dest_schema = $sqlt_schema;
324 unless ( "SQL::Translator::Producer::$db"->can('preprocess_schema') ) {
325 my $t = SQL::Translator->new({
331 $t->parser( $db ) # could this really throw an exception?
332 or $self->throw_exception ($t->error);
334 my $filename = $self->_ddl_schema_produce_filename($db, $to_version, $dir);
335 my $out = $t->translate( $filename )
336 or $self->throw_exception ($t->error);
338 $dest_schema = $t->schema;
340 $dest_schema->name( $filename )
341 unless $dest_schema->name;
344 my $diff = SQL::Translator::Diff::schema_diff(
350 unless(open $file, q(>), $diff_file) {
351 $self->throw_exception("Can't write to $diff_file ($!)");
359 method _read_sql_file($file) {
362 open my $fh, '<', $file or carp("Can't open upgrade file, $file ($!)");
363 my @data = split /\n/, join '', <$fh>;
369 !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/m
376 # these are exactly the same for now
377 sub _downgrade_single_step {
379 my @version_set = @{ shift @_ };
380 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
381 $self->storage->sqlt_type,
385 for my $upgrade_file (@upgrade_files) {
386 unless (-f $upgrade_file) {
388 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
392 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
394 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
396 $guard->commit if $self->txn_wrap;
400 sub _upgrade_single_step {
402 my @version_set = @{ shift @_ };
403 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
404 $self->storage->sqlt_type,
408 for my $upgrade_file (@upgrade_files) {
409 unless (-f $upgrade_file) {
411 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
415 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
416 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
418 $guard->commit if $self->txn_wrap;
422 method _do_upgrade { $self->_run_upgrade(qr/.*?/) }
424 method _run_upgrade($stm) {
425 return unless $self->_filedata;
426 my @statements = grep { $_ =~ $stm } @{$self->_filedata};
429 $self->storage->debugobj->query_start($_) if $self->storage->debug;
430 $self->_apply_statement($_);
431 $self->storage->debugobj->query_end($_) if $self->storage->debug;
435 method _apply_statement($statement) {
437 $self->storage->dbh->do($_) or carp "SQL was: $_"
444 vim: ts=2 sw=2 expandtab