1 package DBIx::Class::Schema::Loader::DBI::InterBase;
6 use base qw/DBIx::Class::Schema::Loader::DBI/;
7 use Carp::Clan qw/^DBIx::Class/;
9 our $VERSION = '0.05003';
13 DBIx::Class::Schema::Loader::DBI::InterBase - DBIx::Class::Schema::Loader::DBI
14 Firebird Implementation.
18 See L<DBIx::Class::Schema::Loader::Base>.
23 my ($self, $table) = @_;
25 my $dbh = $self->schema->storage->dbh;
26 my $sth = $dbh->prepare(<<'EOF');
27 SELECT iseg.rdb$field_name
28 FROM rdb$relation_constraints rc
29 JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name
30 WHERE rc.rdb$constraint_type = 'PRIMARY KEY' and rc.rdb$relation_name = ?
31 ORDER BY iseg.rdb$field_position
33 $sth->execute($table);
37 while (my ($col) = $sth->fetchrow_array) {
38 s/^\s+//, s/\s+\z// for $col;
40 push @keydata, lc $col;
47 my ($self, $table) = @_;
49 my ($local_cols, $remote_cols, $remote_table, @rels);
50 my $dbh = $self->schema->storage->dbh;
51 my $sth = $dbh->prepare(<<'EOF');
52 SELECT rc.rdb$constraint_name fk, iseg.rdb$field_name local_col, ri.rdb$relation_name remote_tab, riseg.rdb$field_name remote_col
53 FROM rdb$relation_constraints rc
54 JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name
55 JOIN rdb$indices li ON rc.rdb$index_name = li.rdb$index_name
56 JOIN rdb$indices ri ON li.rdb$foreign_key = ri.rdb$index_name
57 JOIN rdb$index_segments riseg ON iseg.rdb$field_position = riseg.rdb$field_position and ri.rdb$index_name = riseg.rdb$index_name
58 WHERE rc.rdb$constraint_type = 'FOREIGN KEY' and rc.rdb$relation_name = ?
59 ORDER BY iseg.rdb$field_position
61 $sth->execute($table);
63 while (my ($fk, $local_col, $remote_tab, $remote_col) = $sth->fetchrow_array) {
64 s/^\s+//, s/\s+\z// for $fk, $local_col, $remote_tab, $remote_col;
66 push @{$local_cols->{$fk}}, lc $local_col;
67 push @{$remote_cols->{$fk}}, lc $remote_col;
68 $remote_table->{$fk} = $remote_tab;
71 foreach my $fk (keys %$remote_table) {
73 local_columns => $local_cols->{$fk},
74 remote_columns => $remote_cols->{$fk},
75 remote_table => $remote_table->{$fk},
81 sub _table_uniq_info {
82 my ($self, $table) = @_;
84 my $dbh = $self->schema->storage->dbh;
85 my $sth = $dbh->prepare(<<'EOF');
86 SELECT rc.rdb$constraint_name, iseg.rdb$field_name
87 FROM rdb$relation_constraints rc
88 JOIN rdb$index_segments iseg ON rc.rdb$index_name = iseg.rdb$index_name
89 WHERE rc.rdb$constraint_type = 'UNIQUE' and rc.rdb$relation_name = ?
90 ORDER BY iseg.rdb$field_position
92 $sth->execute($table);
95 while (my ($constraint_name, $column) = $sth->fetchrow_array) {
96 s/^\s+//, s/\s+\z// for $constraint_name, $column;
98 push @{$constraints->{$constraint_name}}, lc $column;
101 my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints;
105 sub _extra_column_info {
106 my ($self, $table, $column, $info, $dbi_info) = @_;
109 my $dbh = $self->schema->storage->dbh;
111 local $dbh->{LongReadLen} = 100000;
112 local $dbh->{LongTruncOk} = 1;
114 my $sth = $dbh->prepare(<<'EOF');
115 SELECT t.rdb$trigger_source
117 WHERE t.rdb$relation_name = ?
120 $sth->execute($table);
122 while (my ($trigger) = $sth->fetchrow_array) {
123 my ($trig_col, $generator) = $trigger =~
124 /new\s*.\s*(\w+) \s* = \s* gen_id\s* \( \s* (\w+)/ix;
126 if ($trig_col eq $column) {
127 $extra_info{is_auto_increment} = 1;
128 $extra_info{sequence} = $generator;
137 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
138 L<DBIx::Class::Schema::Loader::DBI>
142 See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
146 This library is free software; you can redistribute it and/or modify it under
147 the same terms as Perl itself.