package SQL::Translator::Parser::DBI::PostgreSQL;
# -------------------------------------------------------------------
-# $Id: PostgreSQL.pm,v 1.8 2005-10-06 20:33:07 scottcain Exp $
-# -------------------------------------------------------------------
-# Copyright (C) 2002-4 SQLFairy Authors
+# Copyright (C) 2002-2009 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
use SQL::Translator::Schema::Constants;
use vars qw[ $DEBUG $VERSION @EXPORT_OK ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.8 $ =~ /(\d+)\.(\d+)/;
+$VERSION = '1.59';
$DEBUG = 0 unless defined $DEBUG;
+my $actions = {c => 'cascade',
+ r => 'restrict',
+ a => 'no action',
+ n => 'set null',
+ d => 'set default',
+ };
+
# -------------------------------------------------------------------
sub parse {
my ( $tr, $dbh ) = @_;
(SELECT oid FROM pg_namespace WHERE nspname='public')
AND relkind='r';"
);
+
+ my $fk_select = $dbh->prepare(
+ q/
+SELECT r.conname,
+ c.relname,
+ d.relname AS frelname,
+ r.conkey,
+ ARRAY(SELECT column_name::varchar
+ FROM information_schema.columns
+ WHERE ordinal_position = ANY (r.conkey)
+ AND table_schema = n.nspname
+ AND table_name = c.relname ) AS fields,
+ r.confkey,
+ ARRAY(SELECT column_name::varchar
+ FROM information_schema.columns
+ WHERE ordinal_position = ANY (r.confkey)
+ AND table_schema = n.nspname
+ AND table_name = d.relname ) AS reference_fields,
+ r.confupdtype,
+ r.confdeltype,
+ r.confmatchtype
+
+FROM pg_catalog.pg_constraint r
+
+JOIN pg_catalog.pg_class c
+ ON c.oid = r.conrelid
+ AND r.contype = 'f'
+
+JOIN pg_catalog.pg_class d
+ ON d.oid = r.confrelid
+
+JOIN pg_catalog.pg_namespace n
+ ON n.oid = c.relnamespace
+
+WHERE pg_catalog.pg_table_is_visible(c.oid)
+ AND n.nspname = ?
+ AND c.relname = ?
+ORDER BY 1;
+ /) or die "Can't prepare: $@";
+
$table_select->execute();
while ( my $tablehash = $table_select->fetchrow_hashref ) {
while (my $columnhash = $column_select->fetchrow_hashref ) {
- $table->add_field(
+ #data_type seems to not be populated; perhaps there needs to
+ #be a mapping of query output to reserved constants in sqlt?
+
+ my $col = $table->add_field(
name => $$columnhash{'attname'},
default_value => $$columnhash{'adsrc'},
- data_type => $$columnhash{'typename'},
+ data_type => $$columnhash{'typname'},
order => $$columnhash{'attnum'},
- size => $$columnhash{'length'},
- nullable => $$columnhash{'attnotnull'} eq 't'
- ? 0 : 1,
) || die $table->error;
+
+ $col->{size} = [$$columnhash{'length'}] if $$columnhash{'length'}>0;
+ $col->{is_nullable} = $$columnhash{'attnotnull'} ? 0 : 1;
}
$index_select->execute($table_oid);
or !defined($$indexhash{'indkey'}) );
my $type;
- if ($$indexhash{'indisprimary'} eq 't') {
- $type = PRIMARY_KEY;
- } elsif ($$indexhash{'indisunique'} eq 't') {
- $type = UNIQUE;
+ if ($$indexhash{'indisprimary'}) {
+ $type = UNIQUE; #PRIMARY_KEY;
+
+ #tell sqlt that this is the primary key:
+ my $col_name=$column_names[($$indexhash{'indkey'} - 1)];
+ $table->get_field($col_name)->{is_primary_key}=1;
+
+ } elsif ($$indexhash{'indisunique'}) {
+ $type = UNIQUE;
} else {
$type = NORMAL;
}
$table->add_index(
name => $$indexhash{'relname'},
type => $type,
- fields => @columns,
+ fields => \@columns,
) || die $table->error;
}
+
+ $fk_select->execute('public',$table_name) or die "Can't execute: $@";
+ my $fkeys = $fk_select->fetchall_arrayref({});
+ $DEBUG and print Dumper $fkeys;
+ for my $con (@$fkeys){
+ my $con_name = $con->{conname};
+ my $fields = $con->{fields};
+ my $reference_fields = $con->{reference_fields};
+ my $reference_table = $con->{frelname};
+ my $on_upd = $con->{confupdtype};
+ my $on_del = $con->{confdeltype};
+ $table->add_constraint(
+ name => $con_name,
+ type => 'foreign_key',
+ fields => $fields,
+ reference_fields => $reference_fields,
+ reference_table => $reference_table,
+ on_delete => $actions->{$on_upd},
+ on_update => $actions->{$on_del},
+ );
+ }
}
+
return 1;
}