use strict;
use warnings;
-use base 'DBIx::Class::Schema::Loader::DBI';
-use Carp::Clan qw/^DBIx::Class/;
-use Class::C3;
+use base qw/
+ DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault
+ DBIx::Class::Schema::Loader::DBI
+/;
+use mro 'c3';
-our $VERSION = '0.04001';
+our $VERSION = '0.07010';
=head1 NAME
DBIx::Class::Schema::Loader::DBI::Pg - DBIx::Class::Schema::Loader::DBI
PostgreSQL Implementation.
-=head1 SYNOPSIS
-
- package My::Schema;
- use base qw/DBIx::Class::Schema::Loader/;
-
- __PACKAGE__->loader_options( debug => 1 );
-
- 1;
-
=head1 DESCRIPTION
-See L<DBIx::Class::Schema::Loader::Base>.
+See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
=cut
my $self = shift;
$self->next::method(@_);
- $self->{db_schema} ||= 'public';
+
+ $self->{db_schema} ||= ['public'];
+
+ if (not defined $self->preserve_case) {
+ $self->preserve_case(0);
+ }
+ elsif ($self->preserve_case) {
+ $self->schema->storage->sql_maker->quote_char('"');
+ $self->schema->storage->sql_maker->name_sep('.');
+ }
+}
+
+sub _system_schemas {
+ my $self = shift;
+
+ return ($self->next::method(@_), 'pg_catalog');
}
sub _table_uniq_info {
if $DBD::Pg::VERSION >= 1.50;
my @uniqs;
- my $dbh = $self->schema->storage->dbh;
# Most of the SQL here is mostly based on
# Rose::DB::Object::Metadata::Auto::Pg, after some prodding from
# John Siracusa to use his superior SQL code :)
- my $attr_sth = $self->{_cache}->{pg_attr_sth} ||= $dbh->prepare(
+ my $attr_sth = $self->{_cache}->{pg_attr_sth} ||= $self->dbh->prepare(
q{SELECT attname FROM pg_catalog.pg_attribute
WHERE attrelid = ? AND attnum = ?}
);
- my $uniq_sth = $self->{_cache}->{pg_uniq_sth} ||= $dbh->prepare(
+ my $uniq_sth = $self->{_cache}->{pg_uniq_sth} ||= $self->dbh->prepare(
q{SELECT x.indrelid, i.relname, x.indkey
FROM
pg_catalog.pg_index x
c.relname = ?}
);
- $uniq_sth->execute($self->db_schema, $table);
+ $uniq_sth->execute($table->schema, $table);
while(my $row = $uniq_sth->fetchrow_arrayref) {
my ($tableid, $indexname, $col_nums) = @$row;
$col_nums =~ s/^\s+//;
return \@uniqs;
}
+sub _table_comment {
+ my $self = shift;
+ my ($table) = @_;
+
+ my $table_comment = $self->next::method(@_);
+
+ return $table_comment if $table_comment;
+
+ ($table_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->name, $table->schema);
+SELECT obj_description(oid)
+FROM pg_class
+WHERE relname=? AND relnamespace=(SELECT oid FROM pg_namespace WHERE nspname=?)
+EOF
+
+ return $table_comment
+}
+
+
+sub _column_comment {
+ my $self = shift;
+ my ($table, $column_number, $column_name) = @_;
+
+ my $column_comment = $self->next::method(@_);
+
+ return $column_comment if $column_comment;
+
+ my ($table_oid) = $self->dbh->selectrow_array(<<'EOF', {}, $table->name, $table->schema);
+SELECT oid
+FROM pg_class
+WHERE relname=? AND relnamespace=(SELECT oid FROM pg_namespace WHERE nspname=?)
+EOF
+
+ return $self->dbh->selectrow_array('SELECT col_description(?,?)', {}, $table_oid, $column_number);
+}
+
+# Make sure data_type's that don't need it don't have a 'size' column_info, and
+# set the correct precision for datetime and varbit types.
+sub _columns_info_for {
+ my $self = shift;
+ my ($table) = @_;
+
+ my $result = $self->next::method(@_);
+
+ while (my ($col, $info) = each %$result) {
+ my $data_type = $info->{data_type};
+
+ # these types are fixed size
+ # XXX should this be a negative match?
+ if ($data_type =~
+/^(?:bigint|int8|bigserial|serial8|bool(?:ean)?|box|bytea|cidr|circle|date|double precision|float8|inet|integer|int|int4|line|lseg|macaddr|money|path|point|polygon|real|float4|smallint|int2|serial|serial4|text)\z/i) {
+ delete $info->{size};
+ }
+# for datetime types, check if it has a precision or not
+ elsif ($data_type =~ /^(?:interval|time|timestamp)\b/i) {
+ if (lc($data_type) eq 'timestamp without time zone') {
+ $info->{data_type} = 'timestamp';
+ }
+ elsif (lc($data_type) eq 'time without time zone') {
+ $info->{data_type} = 'time';
+ }
+
+ my ($precision) = $self->schema->storage->dbh
+ ->selectrow_array(<<EOF, {}, $table, $col);
+SELECT datetime_precision
+FROM information_schema.columns
+WHERE table_name = ? and column_name = ?
+EOF
+
+ if ($data_type =~ /^time\b/i) {
+ if ((not $precision) || $precision !~ /^\d/) {
+ delete $info->{size};
+ }
+ else {
+ my ($integer_datetimes) = $self->dbh
+ ->selectrow_array('show integer_datetimes');
+
+ my $max_precision =
+ $integer_datetimes =~ /^on\z/i ? 6 : 10;
+
+ if ($precision == $max_precision) {
+ delete $info->{size};
+ }
+ else {
+ $info->{size} = $precision;
+ }
+ }
+ }
+ elsif ((not $precision) || $precision !~ /^\d/ || $precision == 6) {
+ delete $info->{size};
+ }
+ else {
+ $info->{size} = $precision;
+ }
+ }
+ elsif ($data_type =~ /^(?:bit(?: varying)?|varbit)\z/i) {
+ $info->{data_type} = 'varbit' if $data_type =~ /var/i;
+
+ my ($precision) = $self->dbh->selectrow_array(<<EOF, {}, $table, $col);
+SELECT character_maximum_length
+FROM information_schema.columns
+WHERE table_name = ? and column_name = ?
+EOF
+
+ $info->{size} = $precision if $precision;
+
+ $info->{size} = 1 if (not $precision) && lc($data_type) eq 'bit';
+ }
+ elsif ($data_type =~ /^(?:numeric|decimal)\z/i && (my $size = $info->{size})) {
+ $size =~ s/\s*//g;
+
+ my ($scale, $precision) = split /,/, $size;
+
+ $info->{size} = [ $precision, $scale ];
+ }
+ elsif (lc($data_type) eq 'character varying') {
+ $info->{data_type} = 'varchar';
+
+ if (not $info->{size}) {
+ $info->{data_type} = 'text';
+ $info->{original}{data_type} = 'varchar';
+ }
+ }
+ elsif (lc($data_type) eq 'character') {
+ $info->{data_type} = 'char';
+ }
+ else {
+ my ($typetype) = $self->schema->storage->dbh
+ ->selectrow_array(<<EOF, {}, $data_type);
+SELECT typtype
+FROM pg_catalog.pg_type
+WHERE typname = ?
+EOF
+ if ($typetype && $typetype eq 'e') {
+ # The following will extract a list of allowed values for the
+ # enum.
+ my $typevalues = $self->dbh
+ ->selectall_arrayref(<<EOF, {}, $info->{data_type});
+SELECT e.enumlabel
+FROM pg_catalog.pg_enum e
+JOIN pg_catalog.pg_type t ON t.oid = e.enumtypid
+WHERE t.typname = ?
+EOF
+
+ $info->{extra}{list} = [ map { $_->[0] } @$typevalues ];
+
+ # Store its original name in extra for SQLT to pick up.
+ $info->{extra}{custom_type_name} = $info->{data_type};
+
+ $info->{data_type} = 'enum';
+
+ delete $info->{size};
+ }
+ }
+
+# process SERIAL columns
+ if (ref($info->{default_value}) eq 'SCALAR'
+ && ${ $info->{default_value} } =~ /\bnextval\('([^:]+)'/i) {
+ $info->{is_auto_increment} = 1;
+ $info->{sequence} = $1;
+ delete $info->{default_value};
+ }
+
+# alias now() to current_timestamp for deploying to other DBs
+ if ((eval { lc ${ $info->{default_value} } }||'') eq 'now()') {
+ # do not use a ref to a constant, that breaks Data::Dump output
+ ${$info->{default_value}} = 'current_timestamp';
+
+ my $now = 'now()';
+ $info->{original}{default_value} = \$now;
+ }
+
+# detect 0/1 for booleans and rewrite
+ if ($data_type =~ /^bool/i && exists $info->{default_value}) {
+ if ($info->{default_value} eq '0') {
+ my $false = 'false';
+ $info->{default_value} = \$false;
+ }
+ elsif ($info->{default_value} eq '1') {
+ my $true = 'true';
+ $info->{default_value} = \$true;
+ }
+ }
+ }
+
+ return $result;
+}
+
=head1 SEE ALSO
L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
L<DBIx::Class::Schema::Loader::DBI>
+=head1 AUTHOR
+
+See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
+
+=head1 LICENSE
+
+This library is free software; you can redistribute it and/or modify it under
+the same terms as Perl itself.
+
=cut
1;