use Exporter;
use SQL::Translator::Utils qw(debug normalize_name);
use Carp::Clan qw/^SQL::Translator|^DBIx::Class/;
+use Scalar::Util ();
use base qw(Exporter);
# We're working with DBIx::Class Schemas, not data streams.
# -------------------------------------------------------------------
sub parse {
+ # this is a hack to prevent schema leaks due to a retarded SQLT implementation
+ # DO NOT REMOVE (until SQLT2 is out, the all of this will be rewritten anyway)
+ Scalar::Util::weaken ($_[1]) if ref ($_[1]);
+
my ($tr, $data) = @_;
my $args = $tr->parser_args;
my $dbicschema = $args->{'DBIx::Class::Schema'} || $args->{"DBIx::Schema"} ||$data;
}
- my(@table_monikers, @view_monikers);
+ my(%table_monikers, %view_monikers);
for my $moniker (@monikers){
my $source = $dbicschema->source($moniker);
if ( $source->isa('DBIx::Class::ResultSource::Table') ) {
- push(@table_monikers, $moniker);
+ $table_monikers{$moniker}++;
} elsif( $source->isa('DBIx::Class::ResultSource::View') ){
next if $source->is_virtual;
- push(@view_monikers, $moniker);
+ $view_monikers{$moniker}++;
}
}
my %tables;
- foreach my $moniker (sort @table_monikers)
+ foreach my $moniker (sort keys %table_monikers)
{
my $source = $dbicschema->source($moniker);
my $table_name = $source->name;
# support quoting properly to be signaled about this
$table_name = $$table_name if ref $table_name eq 'SCALAR';
- # Its possible to have multiple DBIC sources using the same table
+ # It's possible to have multiple DBIC sources using the same table
next if $tables{$table_name};
$tables{$table_name}{source} = $source;
my $f = $table->add_field(%colinfo)
|| $dbicschema->throw_exception ($table->error);
}
- $table->primary_key($source->primary_columns);
my @primary = $source->primary_columns;
+
+ $table->primary_key(@primary) if @primary;
+
my %unique_constraints = $source->unique_constraints;
foreach my $uniq (sort keys %unique_constraints) {
if (!$source->_compare_relationship_keys($unique_constraints{$uniq}, \@primary)) {
my %created_FK_rels;
# global add_fk_index set in parser_args
- my $add_fk_index = (exists $args->{add_fk_index} && ($args->{add_fk_index} == 0)) ? 0 : 1;
+ my $add_fk_index = (exists $args->{add_fk_index} && ! $args->{add_fk_index}) ? 0 : 1;
foreach my $rel (sort @rels)
{
+
my $rel_info = $source->relationship_info($rel);
# Ignore any rel cond that isn't a straight hash
next unless ref $rel_info->{cond} eq 'HASH';
- my $othertable = $source->related_source($rel);
- my $rel_table = $othertable->name;
+ my $relsource = $source->related_source($rel);
+
+ # related sources might be excluded via a {sources} filter or might be views
+ next unless exists $table_monikers{$relsource->source_name};
+
+ my $rel_table = $relsource->name;
# FIXME - this isn't the right way to do it, but sqlt does not
# support quoting properly to be signaled about this
# Force the order of @cond to match the order of ->add_columns
my $idx;
- my %other_columns_idx = map {'foreign.'.$_ => ++$idx } $othertable->columns;
+ my %other_columns_idx = map {'foreign.'.$_ => ++$idx } $relsource->columns;
my @cond = sort { $other_columns_idx{$a} cmp $other_columns_idx{$b} } keys(%{$rel_info->{cond}});
# Get the key information, mapping off the foreign/self markers
if ($fk_constraint) {
$cascade->{$c} = $rel_info->{attrs}{"on_$c"};
}
- else {
+ elsif ( $rel_info->{attrs}{"on_$c"} ) {
carp "SQLT attribute 'on_$c' was supplied for relationship '$moniker/$rel', which does not appear to be a foreign constraint. "
. "If you are sure that SQLT must generate a constraint for this relationship, add 'is_foreign_key_constraint => 1' to the attributes.\n";
}
}
}
- if($rel_table)
- {
+ if($rel_table) {
# Constraints are added only if applicable
next unless $fk_constraint;
# Make sure we dont create the same foreign key constraint twice
- my $key_test = join("\x00", @keys);
+ my $key_test = join("\x00", sort @keys);
next if $created_FK_rels{$rel_table}->{$key_test};
if (scalar(@keys)) {
-
$created_FK_rels{$rel_table}->{$key_test} = 1;
my $is_deferrable = $rel_info->{attrs}{is_deferrable};
- # do not consider deferrable constraints and self-references
- # for dependency calculations
+ # calculate dependencies: do not consider deferrable constraints and
+ # self-references for dependency calculations
if (! $is_deferrable and $rel_table ne $table_name) {
$tables{$table_name}{foreign_table_deps}{$rel_table}++;
}
$table->add_constraint(
- type => 'foreign_key',
- name => join('_', $table_name, 'fk', @keys),
- fields => \@keys,
- reference_fields => \@refkeys,
- reference_table => $rel_table,
- on_delete => uc ($cascade->{delete} || ''),
- on_update => uc ($cascade->{update} || ''),
- (defined $is_deferrable ? ( deferrable => $is_deferrable ) : ()),
+ type => 'foreign_key',
+ name => join('_', $table_name, 'fk', @keys),
+ fields => \@keys,
+ reference_fields => \@refkeys,
+ reference_table => $rel_table,
+ on_delete => uc ($cascade->{delete} || ''),
+ on_update => uc ($cascade->{update} || ''),
+ (defined $is_deferrable ? ( deferrable => $is_deferrable ) : ()),
);
# global parser_args add_fk_index param can be overridden on the rel def
my $add_fk_index_rel = (exists $rel_info->{attrs}{add_fk_index}) ? $rel_info->{attrs}{add_fk_index} : $add_fk_index;
+ # Check that we do not create an index identical to the PK index
+ # (some RDBMS croak on this, and it generally doesn't make much sense)
+ # NOTE: we do not sort the key columns because the order of
+ # columns is important for indexes and two indexes with the
+ # same cols but different order are allowed and sometimes
+ # needed
+ next if join("\x00", @keys) eq join("\x00", @primary);
+
if ($add_fk_index_rel) {
my $index = $table->add_index(
- name => join('_', $table_name, 'idx', @keys),
- fields => \@keys,
- type => 'NORMAL',
- );
+ name => join('_', $table_name, 'idx', @keys),
+ fields => \@keys,
+ type => 'NORMAL',
+ );
}
}
}
<=>
(exists $b->depends_on->{$a->source_name} ? 1 : 0)
}
- map { $dbicschema->source($_) } @view_monikers;
-
+ map { $dbicschema->source($_) } (sort keys %@view_monikers);
+
foreach my $source (@view_sources)
{
my $view_name = $source->name;
# Its possible to have multiple DBIC source using same table
next if $views{$view_name}++;
+ $dbicschema->throw_exception ("view $view_name is missing a view_definition")
+ unless $source->view_definition;
+
my $view = $schema->add_view (
name => $view_name,
fields => [ $source->columns ],
my $schema = MyApp::Schema->connect;
my $trans = SQL::Translator->new (
parser => 'SQL::Translator::Parser::DBIx::Class',
- parser_args => { package => $schema },
+ parser_args => {
+ package => $schema,
+ add_fk_index => 0,
+ sources => [qw/
+ Artist
+ CD
+ /],
+ },
producer => 'SQLite',
) or die SQL::Translator->error;
my $out = $trans->translate() or die $trans->error;
have SQL::Translator installed. To do this see
L<DBIx::Class::Schema/create_ddl_dir>.
+=head1 PARSER OPTIONS
+
+=head2 add_fk_index
+
+Create an index for each foreign key.
+Enabled by default, as having indexed foreign key columns is normally the
+sensible thing to do.
+
+=head2 sources
+
+=over 4
+
+=item Arguments: \@class_names
+
+=back
+
+Limit the amount of parsed sources by supplying an explicit list of source names.
+
=head1 SEE ALSO
L<SQL::Translator>, L<DBIx::Class::Schema>
=head1 AUTHORS
-Jess Robinson
+See L<DBIx::Class/CONTRIBUTORS>.
+
+=head1 LICENSE
-Matt S Trout
+You may distribute this code under the same terms as Perl itself.
-Ash Berlin
+=cut
projects / dbsrgits/DBIx-Class.git / blobdiff