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package SQL::Translator::Parser::DBI::PostgreSQL;
# -------------------------------------------------------------------
# $Id: PostgreSQL.pm,v 1.7 2004/09/15 21:13:43 schiffbruechige Exp $
# -------------------------------------------------------------------
# Copyright (C) 2002-4 SQLFairy Authors
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
# 02111-1307 USA
# -------------------------------------------------------------------
=head1 NAME
SQL::Translator::Parser::DBI::PostgreSQL - parser for DBD::Pg
=head1 SYNOPSIS
See SQL::Translator::Parser::DBI.
=head1 DESCRIPTION
Uses DBI methods to determine schema structure. DBI, of course,
delegates to DBD::Pg, and versions < 1.31 of DBD::Pg don't return very
useful information. It is recommended that you upgrade this module.
=cut
use strict;
use DBI;
use Data::Dumper;
use SQL::Translator::Schema::Constants;
use vars qw[ $DEBUG $VERSION @EXPORT_OK ];
$VERSION = sprintf "%d.%02d", q$Revision: 1.7 $ =~ /(\d+)\.(\d+)/;
$DEBUG = 0 unless defined $DEBUG;
# -------------------------------------------------------------------
sub parse {
my ( $tr, $dbh ) = @_;
my $schema = $tr->schema;
my ($sth, @tables, $columns);
my $stuff;
warn "DBD:Pg $DBD::Pg::VERSION is not likely to produce anything ".
"useful. Upgrade to 1.31 or better if available.\n"
unless ($DBD::Pg::VERSION ge '1.31');
if ($dbh->{FetchHashKeyName} ne 'NAME_uc') {
$dbh->{FetchHashKeyName} = 'NAME_uc';
}
if ($dbh->{ChopBlanks} != 1) {
$dbh->{ChopBlanks} = 1;
}
$sth = $dbh->table_info();
@tables = @{$sth->fetchall_arrayref({})};
foreach my $table_info (@tables) {
next
unless (defined($table_info->{TABLE_TYPE}));
if ($table_info->{TABLE_TYPE} eq 'TABLE'&&
$table_info->{TABLE_SCHEM} eq 'public') {
my $table = $schema->add_table(
name => $table_info->{TABLE_NAME},
type => $table_info->{TABLE_TYPE},
) || die $schema->error;
my $cols = $dbh->column_info(undef,
$table_info->{TABLE_SCHEM},
$table_info->{TABLE_NAME},
"%" )->fetchall_arrayref({});
foreach my $c (@{$cols}) {
print Dumper($c) if $DEBUG;
my $f = $table->add_field(
name => $c->{COLUMN_NAME},
default_value => $c->{COLUMN_DEF},
data_type => $c->{TYPE_NAME},
order => $c->{ORDINAL_POSITION},
size => $c->{COLUMN_SIZE},
) || die $table->error;
$f->is_nullable($c->{NULLABLE} == 1);
}
}
}
return 1;
}
1;
# -------------------------------------------------------------------
# Time is a waste of money.
# Oscar Wilde
# -------------------------------------------------------------------
=pod
=head1 AUTHOR
Paul Harrington E<lt>harringp@deshaw.comE<gt>.
=head1 SEE ALSO
SQL::Translator, DBD::Pg.
=cut
|
