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 use File::Path 'mkpath';
10 use DBIx::Class::DeploymentHandler::Types;
11 use File::Spec::Functions;
14 with 'DBIx::Class::DeploymentHandler::HandlesDeploy';
19 isa => 'DBIx::Class::Schema',
22 handles => [qw( schema_version )],
26 isa => 'DBIx::Class::Storage',
31 method _build_storage {
32 my $s = $self->schema->storage;
33 $s->_determine_driver;
40 default => sub { {} },
42 has upgrade_directory => (
51 isa => 'DBIx::Class::DeploymentHandler::Databases',
53 default => sub { [qw( MySQL SQLite PostgreSQL )] },
57 isa => 'ArrayRef[Str]',
67 method __ddl_consume_with_prefix($type, $versions, $prefix) {
68 my $base_dir = $self->upgrade_directory;
70 my $main = catfile( $base_dir, $type );
71 my $generic = catfile( $base_dir, '_generic' );
73 catfile( $base_dir, '_common', $prefix, join q(-), @{$versions} );
77 $dir = catfile($main, $prefix, join q(-), @{$versions})
78 } elsif (-d $generic) {
79 $dir = catfile($main, $prefix, join q(-), @{$versions})
84 opendir my($dh), $dir;
85 my %files = map { $_ => "$dir/$_" } grep { /\.sql$/ && -f "$dir/$_" } readdir($dh);
89 opendir my($dh), $common;
90 for my $filename (grep { /\.sql$/ && -f "$common/$_" } readdir($dh)) {
91 unless ($files{$filename}) {
92 $files{$filename} = "$common/$_";
98 return [@files{sort keys %files}]
101 method _ddl_schema_consume_filenames($type, $version) {
102 $self->__ddl_consume_with_prefix($type, [ $version ], 'schema')
105 method _ddl_schema_produce_filename($type, $version) {
106 my $dirname = catfile( $self->upgrade_directory, $type, 'schema', $version );
107 mkpath($dirname) unless -d $dirname;
109 return catfile( $dirname, '001-auto.sql' );
112 method _ddl_schema_up_consume_filenames($type, $versions) {
113 $self->__ddl_consume_with_prefix($type, $versions, 'up')
116 method _ddl_schema_down_consume_filenames($type, $versions) {
117 $self->__ddl_consume_with_prefix($type, $versions, 'down')
120 method _ddl_schema_up_produce_filename($type, $versions) {
121 my $dir = $self->upgrade_directory;
123 my $dirname = catfile( $dir, $type, 'up', join q(-), @{$versions});
124 mkpath($dirname) unless -d $dirname;
126 return catfile( $dirname, '001-auto.sql'
130 method _ddl_schema_down_produce_filename($type, $versions, $dir) {
131 my $dirname = catfile( $dir, $type, 'down', join q(-), @{$versions} );
132 mkpath($dirname) unless -d $dirname;
134 return catfile( $dirname, '001-auto.sql');
139 my $storage = $self->storage;
141 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
143 my @sql = map @{$self->_read_sql_file($_)}, @{$self->_ddl_schema_consume_filenames(
144 $self->storage->sqlt_type,
145 $self->schema_version
148 foreach my $line (@sql) {
149 $storage->_query_start($line);
151 # do a dbh_do cycle here, as we need some error checking in
152 # place (even though we will ignore errors)
153 $storage->dbh_do (sub { $_[1]->do($line) });
156 carp "$_ (running '${line}')"
158 $storage->_query_end($line);
161 $guard->commit if $self->txn_wrap;
162 return join "\n", @sql;
165 sub prepare_install {
167 my $schema = $self->schema;
168 my $databases = $self->databases;
169 my $dir = $self->upgrade_directory;
170 my $sqltargs = $self->sqltargs;
171 my $version = $schema->schema_version;
173 my $sqlt = SQL::Translator->new({
175 ignore_constraint_names => 1,
176 ignore_index_names => 1,
177 parser => 'SQL::Translator::Parser::DBIx::Class',
181 my $sqlt_schema = $sqlt->translate( data => $schema )
182 or $self->throw_exception($sqlt->error);
184 foreach my $db (@$databases) {
186 $sqlt->{schema} = $sqlt_schema;
187 $sqlt->producer($db);
189 my $filename = $self->_ddl_schema_produce_filename($db, $version, $dir);
191 carp "Overwriting existing DDL file - $filename";
195 my $output = $sqlt->translate;
197 carp("Failed to translate to $db, skipping. (" . $sqlt->error . ")");
201 unless( open $file, q(>), $filename ) {
202 $self->throw_exception("Can't open $filename for writing ($!)");
205 print {$file} $output;
210 sub prepare_upgrade {
211 my ($self, $from_version, $to_version, $version_set) = @_;
213 $from_version ||= $self->db_version;
214 $to_version ||= $self->schema_version;
216 # for updates prepared automatically (rob's stuff)
217 # one would want to explicitly set $version_set to
219 $version_set ||= [$from_version, $to_version];
221 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'up');
224 sub prepare_downgrade {
225 my ($self, $from_version, $to_version, $version_set) = @_;
227 $from_version ||= $self->db_version;
228 $to_version ||= $self->schema_version;
230 # for updates prepared automatically (rob's stuff)
231 # one would want to explicitly set $version_set to
233 $version_set ||= [$from_version, $to_version];
235 $self->_prepare_changegrade($from_version, $to_version, $version_set, 'down');
238 method _prepare_changegrade($from_version, $to_version, $version_set, $direction) {
239 my $schema = $self->schema;
240 my $databases = $self->databases;
241 my $dir = $self->upgrade_directory;
242 my $sqltargs = $self->sqltargs;
244 my $schema_version = $schema->schema_version;
248 ignore_constraint_names => 1,
249 ignore_index_names => 1,
253 my $sqlt = SQL::Translator->new( $sqltargs );
255 $sqlt->parser('SQL::Translator::Parser::DBIx::Class');
256 my $sqlt_schema = $sqlt->translate( data => $schema )
257 or $self->throw_exception ($sqlt->error);
259 foreach my $db (@$databases) {
261 $sqlt->{schema} = $sqlt_schema;
262 $sqlt->producer($db);
264 my $prefilename = $self->_ddl_schema_produce_filename($db, $from_version, $dir);
265 unless(-e $prefilename) {
266 carp("No previous schema file found ($prefilename)");
269 my $diff_file_method = "_ddl_schema_${direction}_produce_filename";
270 my $diff_file = $self->$diff_file_method($db, $version_set, $dir );
272 carp("Overwriting existing $direction-diff file - $diff_file");
278 my $t = SQL::Translator->new({
284 $t->parser( $db ) # could this really throw an exception?
285 or $self->throw_exception ($t->error);
287 my $out = $t->translate( $prefilename )
288 or $self->throw_exception ($t->error);
290 $source_schema = $t->schema;
292 $source_schema->name( $prefilename )
293 unless $source_schema->name;
296 # The "new" style of producers have sane normalization and can support
297 # diffing a SQL file against a DBIC->SQLT schema. Old style ones don't
298 # And we have to diff parsed SQL against parsed SQL.
299 my $dest_schema = $sqlt_schema;
301 unless ( "SQL::Translator::Producer::$db"->can('preprocess_schema') ) {
302 my $t = SQL::Translator->new({
308 $t->parser( $db ) # could this really throw an exception?
309 or $self->throw_exception ($t->error);
311 my $filename = $self->_ddl_schema_produce_filename($db, $to_version, $dir);
312 my $out = $t->translate( $filename )
313 or $self->throw_exception ($t->error);
315 $dest_schema = $t->schema;
317 $dest_schema->name( $filename )
318 unless $dest_schema->name;
321 my $diff = SQL::Translator::Diff::schema_diff(
327 unless(open $file, q(>), $diff_file) {
328 $self->throw_exception("Can't write to $diff_file ($!)");
336 method _read_sql_file($file) {
339 open my $fh, '<', $file or carp("Can't open sql file, $file ($!)");
340 my @data = split /;\n/, join '', <$fh>;
344 $_ && # remove blank lines
345 !/^(BEGIN|BEGIN TRANSACTION|COMMIT)/ # strip txn's
347 s/^\s+//; s/\s+$//; # trim whitespace
348 join '', grep { !/^--/ } split /\n/ # remove comments
354 # these are exactly the same for now
355 sub _downgrade_single_step {
357 my @version_set = @{ shift @_ };
358 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
359 $self->storage->sqlt_type,
363 for my $upgrade_file (@upgrade_files) {
364 unless (-f $upgrade_file) {
366 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
370 $self->_filedata($self->_read_sql_file($upgrade_file)); # I don't like this --fREW 2010-02-22
372 my $guard = $self->schema->txn_scope_guard if $self->txn_wrap;
374 $guard->commit if $self->txn_wrap;
378 sub _upgrade_single_step {
380 my @version_set = @{ shift @_ };
381 my @upgrade_files = @{$self->_ddl_schema_up_consume_filenames(
382 $self->storage->sqlt_type,
386 for my $upgrade_file (@upgrade_files) {
387 unless (-f $upgrade_file) {
389 carp "Upgrade not possible, no upgrade file found ($upgrade_file), please create one\n";
393 $self->_filedata($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 method _do_upgrade { $self->_run_upgrade(qr/.*?/) }
402 method _run_upgrade($stm) {
403 return unless $self->_filedata;
404 my @statements = grep { $_ =~ $stm } @{$self->_filedata};
407 $self->storage->debugobj->query_start($_) if $self->storage->debug;
408 $self->_apply_statement($_);
409 $self->storage->debugobj->query_end($_) if $self->storage->debug;
413 method _apply_statement($statement) {
415 $self->storage->dbh->do($_) or carp "SQL was: $_"
422 vim: ts=2 sw=2 expandtab