use strict;
use vars qw($VERSION @ISA %typemap);
+use DBD::Pg 1.32;
use DBIx::DBSchema::DBD;
-$VERSION = '0.02';
+$VERSION = '0.12';
@ISA = qw(DBIx::DBSchema::DBD);
+die "DBD::Pg version 1.32 or 1.41 (or later) required--".
+ "this is only version $DBD::Pg::VERSION\n"
+ if $DBD::Pg::VERSION != 1.32 && $DBD::Pg::VERSION < 1.41;
+
%typemap = (
- 'BLOB' => 'TEXT',
+ 'BLOB' => 'BYTEA',
+ 'LONG VARBINARY' => 'BYTEA',
+ 'TIMESTAMP' => 'TIMESTAMP WITH TIME ZONE',
);
=head1 NAME
=cut
+sub default_db_schema { 'public'; }
+
sub columns {
my($proto, $dbh, $table) = @_;
my $sth = $dbh->prepare(<<END) or die $dbh->errstr;
- SELECT a.attname, t.typname, a.attlen, a.atttypmod, a.attnotnull
+ SELECT a.attname, t.typname, a.attlen, a.atttypmod, a.attnotnull,
+ a.atthasdef, a.attnum
FROM pg_class c, pg_attribute a, pg_type t
WHERE c.relname = '$table'
AND a.attnum > 0 AND a.attrelid = c.oid AND a.atttypid = t.oid
+ ORDER BY a.attnum
END
$sth->execute or die $sth->errstr;
+
map {
+
+ my $default = '';
+ if ( $_->{atthasdef} ) {
+ my $attnum = $_->{attnum};
+ my $d_sth = $dbh->prepare(<<END) or die $dbh->errstr;
+ SELECT substring(d.adsrc for 128) FROM pg_attrdef d, pg_class c
+ WHERE c.relname = '$table' AND c.oid = d.adrelid AND d.adnum = $attnum
+END
+ $d_sth->execute or die $d_sth->errstr;
+
+ $default = $d_sth->fetchrow_arrayref->[0];
+ };
+
+ my $len = '';
+ if ( $_->{attlen} == -1 && $_->{atttypmod} != -1
+ && $_->{typname} ne 'text' ) {
+ $len = $_->{atttypmod} - 4;
+ if ( $_->{typname} eq 'numeric' ) {
+ $len = ($len >> 16). ','. ($len & 0xffff);
+ }
+ }
+
+ my $type = $_->{'typname'};
+ $type = 'char' if $type eq 'bpchar';
+
[
$_->{'attname'},
- $_->{'typname'},
+ $type,
! $_->{'attnotnull'},
- ( $_->{'attlen'} == -1
- ? $_->{'atttypmod'} - 4
- : ''
- ),
- '', #default
+ $len,
+ $default,
'' #local
- ]
+ ];
+
} @{ $sth->fetchall_arrayref({}) };
}
FROM pg_class c, pg_attribute a, pg_type t
WHERE c.relname = '$index'
AND a.attnum > 0 AND a.attrelid = c.oid AND a.atttypid = t.oid
+ ORDER BY a.attnum
END
$sth->execute or die $sth->errstr;
map { $_->{'attname'} } @{ $sth->fetchall_arrayref({}) };
$row->{'indisunique'};
}
+sub add_column_callback {
+ my( $proto, $dbh, $table, $column_obj ) = @_;
+ my $name = $column_obj->name;
+
+ my $pg_server_version = $dbh->{'pg_server_version'};
+ my $warning = '';
+ unless ( $pg_server_version =~ /\d/ ) {
+ $warning = "WARNING: no pg_server_version! Assuming >= 7.3\n";
+ $pg_server_version = 70300;
+ }
+
+ my $hashref = { 'sql_after' => [], };
+
+ if ( $column_obj->type =~ /^(\w*)SERIAL$/i ) {
+
+ $hashref->{'effective_type'} = uc($1).'INT';
+
+ #needs more work for old Pg?
+
+ my $nextval;
+ warn $warning if $warning;
+ if ( $pg_server_version >= 70300 ) {
+ $nextval = "nextval('public.${table}_${name}_seq'::text)";
+ } else {
+ $nextval = "nextval('${table}_${name}_seq'::text)";
+ }
+
+ push @{ $hashref->{'sql_after'} },
+ "ALTER TABLE $table ALTER COLUMN $name SET DEFAULT $nextval",
+ "CREATE SEQUENCE ${table}_${name}_seq",
+ "UPDATE $table SET $name = $nextval WHERE $name IS NULL",
+ ;
+
+ }
+
+ if ( ! $column_obj->null ) {
+ $hashref->{'effective_null'} = 'NULL';
+
+ warn $warning if $warning;
+ if ( $pg_server_version >= 70300 ) {
+
+ push @{ $hashref->{'sql_after'} },
+ "ALTER TABLE $table ALTER $name SET NOT NULL";
+
+ } else {
+
+ push @{ $hashref->{'sql_after'} },
+ "UPDATE pg_attribute SET attnotnull = TRUE ".
+ " WHERE attname = '$name' ".
+ " AND attrelid = ( SELECT oid FROM pg_class WHERE relname = '$table' )";
+
+ }
+
+ }
+
+ $hashref;
+
+}
+
+sub alter_column_callback {
+ my( $proto, $dbh, $table, $old_column, $new_column ) = @_;
+ my $name = $old_column->name;
+
+ my $pg_server_version = $dbh->{'pg_server_version'};
+ my $warning = '';
+ unless ( $pg_server_version =~ /\d/ ) {
+ $warning = "WARNING: no pg_server_version! Assuming >= 7.3\n";
+ $pg_server_version = 70300;
+ }
+
+ my $hashref = {};
+
+ # change nullability from NOT NULL to NULL
+ if ( ! $old_column->null && $new_column->null ) {
+
+ warn $warning if $warning;
+ if ( $pg_server_version < 70300 ) {
+ $hashref->{'sql_alter_null'} =
+ "UPDATE pg_attribute SET attnotnull = FALSE
+ WHERE attname = '$name'
+ AND attrelid = ( SELECT oid FROM pg_class
+ WHERE relname = '$table'
+ )";
+ }
+
+ }
+
+ # change nullability from NULL to NOT NULL...
+ # this one could be more complicated, need to set a DEFAULT value and update
+ # the table first...
+ if ( $old_column->null && ! $new_column->null ) {
+
+ warn $warning if $warning;
+ if ( $pg_server_version < 70300 ) {
+ $hashref->{'sql_alter_null'} =
+ "UPDATE pg_attribute SET attnotnull = TRUE
+ WHERE attname = '$name'
+ AND attrelid = ( SELECT oid FROM pg_class
+ WHERE relname = '$table'
+ )";
+ }
+
+ }
+
+ $hashref;
+
+}
+
=head1 AUTHOR
Ivan Kohler <ivan-dbix-dbschema@420.am>
Copyright (c) 2000 Ivan Kohler
Copyright (c) 2000 Mail Abuse Prevention System LLC
+Copyright (c) 2007 Freeside Internet Services, Inc.
All rights reserved.
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
projects / DBIx-DBSchema.git / blobdiff