package SQL::Translator::Producer::PostgreSQL;
# -------------------------------------------------------------------
-# $Id: PostgreSQL.pm,v 1.16 2003-09-04 15:33:24 kycl4rk Exp $
+# $Id: PostgreSQL.pm,v 1.20 2003-10-15 19:07:13 kycl4rk Exp $
# -------------------------------------------------------------------
# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
# darren chamberlain <darren@cpan.org>,
SQL::Translator::Producer::PostgreSQL - PostgreSQL producer for SQL::Translator
+=head1 SYNOPSIS
+
+ my $t = SQL::Translator->new( parser => '...', producer => 'PostgreSQL' );
+ $t->translate;
+
+=head1 DESCRIPTION
+
+Creates a DDL suitable for PostgreSQL. Very heavily based on the Oracle
+producer.
+
=cut
use strict;
use vars qw[ $DEBUG $WARN $VERSION ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.16 $ =~ /(\d+)\.(\d+)/;
+$VERSION = sprintf "%d.%02d", q$Revision: 1.20 $ =~ /(\d+)\.(\d+)/;
$DEBUG = 1 unless defined $DEBUG;
use SQL::Translator::Schema::Constants;
mediumint => 'integer',
smallint => 'smallint',
tinyint => 'smallint',
- char => 'char',
+ char => 'character',
varchar => 'character varying',
longtext => 'text',
mediumtext => 'text',
# Oracle types
#
number => 'integer',
- char => 'char',
+ char => 'character',
varchar2 => 'character varying',
long => 'text',
CLOB => 'bytea',
$output .= header_comment unless ($no_comments);
my %used_index_names;
+ my @fks;
for my $table ( $schema->get_tables ) {
my $table_name = $table->name or next;
$table_name = mk_name( $table_name, '', undef, 1 );
$data_type = 'character varying';
}
elsif ( $data_type eq 'set' ) {
- # XXX add a CHECK constraint maybe
- # (trickier and slower, than enum :)
-# my $len = length $commalist;
-# $field_def .= " character varying($len) /* set $commalist */";
$data_type = 'character varying';
}
elsif ( $field->is_auto_increment ) {
$data_type = 'serial';
}
undef @size;
-
-# $seq_name = mk_name( $table_name.'_'.$field_name, 'sq' );
-# push @sequence_defs, qq[DROP SEQUENCE "$seq_name";];
-# push @sequence_defs, qq[CREATE SEQUENCE "$seq_name";];
}
else {
$data_type = defined $translate{ $data_type } ?
}
if ( $data_type =~ /timestamp/i ) {
- if ( defined $size[0] && $size[0] > 13 ) {
- $size[0] = 13;
+ if ( defined $size[0] && $size[0] > 6 ) {
+ $size[0] = 6;
}
}
}
#
- # Default value
+ # Default value -- disallow for timestamps
#
- my $default = $field->default_value;
+ my $default = $data_type =~ /(timestamp|date)/i
+ ? undef : $field->default_value;
if ( defined $default ) {
$field_def .= sprintf( ' DEFAULT %s',
( $field->is_auto_increment && $seq_name )
my $idx_name_default;
for my $index ( $table->get_indices ) {
my $name = $index->name || '';
+ if ( $name ) {
+ $name = next_unused_name($name, \%used_index_names);
+ $used_index_names{$name} = $name;
+ }
+
my $type = $index->type || NORMAL;
my @fields =
map { $_ =~ s/\(.+\)//; $_ }
$index->fields;
next unless @fields;
+ my $def_start = qq[Constraint "$name" ];
if ( $type eq PRIMARY_KEY ) {
- $name ||= mk_name( $table_name, 'pk' );
- $name = next_unused_name($name, \%used_index_names);
- # how do I get next_unused_name() to do: ?
- $used_index_names{$name} = $name;
- push @constraint_defs, 'Constraint "'.$name.'" PRIMARY KEY '.
+ push @constraint_defs, "${def_start}PRIMARY KEY ".
'("' . join( '", "', @fields ) . '")';
}
elsif ( $type eq UNIQUE ) {
- $name ||= mk_name(
- $table_name, $name || ++$idx_name_default
- );
- $name = next_unused_name($name, \%used_index_names);
- $used_index_names{$name} = $name;
- push @constraint_defs, 'Constraint "' . $name . '" UNIQUE ' .
+ push @constraint_defs, "${def_start}UNIQUE " .
'("' . join( '", "', @fields ) . '")';
}
elsif ( $type eq NORMAL ) {
- $name ||= mk_name(
- $table_name, $name || ++$idx_name_default
- );
- $name = next_unused_name($name, \%used_index_names);
- $used_index_names{$name} = $name;
push @index_defs,
- qq[CREATE INDEX "$name" on $table_name_ur ("].
- join( '", "', @fields ).
- '");';
+ 'CREATE INDEX "' . $name . "\" on $table_name_ur (".
+ join( ', ', map { qq["$_"] } @fields ).
+ ');'
+ ;
}
else {
warn "Unknown index type ($type) on table $table_name.\n"
my $c_name_default;
for my $c ( $table->get_constraints ) {
my $name = $c->name || '';
+ if ( $name ) {
+ $name = next_unused_name($name, \%used_index_names);
+ $used_index_names{$name} = $name;
+ }
+
my @fields =
map { $_ =~ s/\(.+\)//; $_ }
map { unreserve( $_, $table_name ) }
$c->fields;
+
my @rfields =
map { $_ =~ s/\(.+\)//; $_ }
map { unreserve( $_, $table_name ) }
$c->reference_fields;
+
next if !@fields && $c->type ne CHECK_C;
+ my $def_start = $name ? qq[Constraint "$name" ] : '';
if ( $c->type eq PRIMARY_KEY ) {
- $name ||= mk_name( $table_name, 'pk' );
- $name = next_unused_name($name, \%used_index_names);
- $used_index_names{$name} = $name;
- push @constraint_defs, qq[Constraint "$name" PRIMARY KEY ].
+ push @constraint_defs, "${def_start}PRIMARY KEY ".
'("' . join( '", "', @fields ) . '")';
}
elsif ( $c->type eq UNIQUE ) {
- $name ||= mk_name(
- $table_name, $name || ++$c_name_default
- );
$name = next_unused_name($name, \%used_index_names);
$used_index_names{$name} = $name;
- push @constraint_defs, qq[Constraint "$name" UNIQUE ] .
+ push @constraint_defs, "${def_start}UNIQUE " .
'("' . join( '", "', @fields ) . '")';
}
elsif ( $c->type eq CHECK_C ) {
- my $s;
- if ( $name ) {
- $name ||= mk_name(
- $table_name, $name || ++$c_name_default
- );
- $name = next_unused_name($name, \%used_index_names);
- $used_index_names{$name} = $name;
- $s = 'Constraint "$name" ';
- }
my $expression = $c->expression;
- push @constraint_defs, "${s}CHECK ($expression)";
+ push @constraint_defs, "${def_start}CHECK ($expression)";
}
elsif ( $c->type eq FOREIGN_KEY ) {
- my $def = join(' ',
- map { $_ || () } 'FOREIGN KEY', $c->name
- );
-
- $def .= ' ("' . join( '", "', @fields ) . '")';
-
- $def .= ' REFERENCES ' . $c->reference_table;
+ my $def .= "ALTER TABLE $table_name ADD FOREIGN KEY (" .
+ join( ', ', map { qq["$_"] } @fields ) . ')' .
+ "\n REFERENCES " . $c->reference_table;
if ( @rfields ) {
$def .= ' ("' . join( '", "', @rfields ) . '")';
$def .= ' ON UPDATE '.join( ' ', $c->on_update );
}
- push @constraint_defs, $def;
+ push @fks, "$def;";
}
}
);
}
+ if ( @fks ) {
+ $output .= "--\n-- Foreign Key Definitions\n--\n\n" unless $no_comments;
+ $output .= join( "\n\n", @fks );
+ }
+
if ( $WARN ) {
if ( %truncated ) {
warn "Truncated " . keys( %truncated ) . " names:\n";
=pod
+=head1 SEE ALSO
+
+SQL::Translator, SQL::Translator::Producer::Oracle.
+
=head1 AUTHOR
-Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
=cut
projects / dbsrgits/SQL-Translator.git / blobdiff