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 ($_[1]);
+ Scalar::Util::weaken ($_[1]) if ref ($_[1]);
my ($tr, $data) = @_;
my $args = $tr->parser_args;
}
}
- if($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", sort @keys);
next if $created_FK_rels{$rel_table}->{$key_test};
-
- # Make sure we dont create additional indexes for the
- # primary columns
- my $pk_test = join("\x00", @primary);
- next if $key_test eq $pk_test;
if (scalar(@keys)) {
-
$created_FK_rels{$rel_table}->{$key_test} = 1;
my $is_deferrable = $rel_info->{attrs}{is_deferrable};
}
$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',
+ );
}
}
}
}
my %views;
- foreach my $moniker (sort keys %view_monikers)
+ my @view_sources =
+ sort {
+ (exists $a->depends_on->{$b->source_name} ? 1 : 0)
+ <=>
+ (exists $b->depends_on->{$a->source_name} ? 1 : 0)
+ }
+ map { $dbicschema->source($_) } (sort keys %view_monikers);
+
+ foreach my $source (@view_sources)
{
- my $source = $dbicschema->source($moniker);
my $view_name = $source->name;
# FIXME - this isn't the right way to do it, but sqlt does not
parser => 'SQL::Translator::Parser::DBIx::Class',
parser_args => {
package => $schema,
- # to explicitly specify which ResultSources are to be parsed
+ add_fk_index => 0,
sources => [qw/
Artist
CD
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