[dbsrgits/SQL-Translator.git] / lib / SQL / Translator / Parser / Sybase.pm

package SQL::Translator::Parser::Sybase;

# -------------------------------------------------------------------
# $Id: Sybase.pm 1440 2009-01-17 16:31:57Z jawnsy $
# -------------------------------------------------------------------
# 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
# 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::Sybase - parser for Sybase

=head1 SYNOPSIS

  use SQL::Translator::Parser::Sybase;

=head1 DESCRIPTION

Mostly parses the output of "dbschema.pl," a Perl script freely
available from http://www.midsomer.org.  The parsing is not complete,
however, and you would probably have much better luck using the
DBI-Sybase parser included with SQL::Translator.

=cut

use strict;

use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
$VERSION = '1.99';
$DEBUG   = 0 unless defined $DEBUG;

use Data::Dumper;
use Parse::RecDescent;
use Exporter;
use base qw(Exporter);

@EXPORT_OK = qw(parse);

$::RD_ERRORS = 1;
$::RD_WARN   = 1;
$::RD_HINT   = 1;

$GRAMMAR = q{

{ 
    my ( %tables, @table_comments, $table_order );
}

startrule : statement(s) eofile { \%tables }

eofile : /^\Z/

statement : create_table
    | create_procedure
    | create_index
    | create_constraint
    | comment
    | use
    | setuser
    | if
    | print
    | grant
    | exec
    | <error>

use : /use/i WORD GO 
    { @table_comments = () }

setuser : /setuser/i NAME GO

if : /if/i object_not_null begin if_command end GO

if_command : grant
    | create_index
    | create_constraint

object_not_null : /object_id/i '(' ident ')' /is not null/i

print : /\s*/ /print/i /.*/

else : /else/i /.*/

begin : /begin/i

end : /end/i

grant : /grant/i /[^\n]*/

exec : exec_statement(s) GO

exec_statement : /exec/i /[^\n]+/

comment : comment_start comment_middle comment_end
    { 
        my $comment = $item[2];
        $comment =~ s/^\s*|\s*$//mg;
        $comment =~ s/^\**\s*//mg;
        push @table_comments, $comment;
    }

comment_start : /^\s*\/\*/

comment_end : /\s*\*\//

comment_middle : m{([^*]+|\*(?!/))*}

#
# Create table.
#
create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) GO
    { 
        my $table_owner = $item[3]{'owner'};
        my $table_name  = $item[3]{'name'};

        if ( @table_comments ) {
            $tables{ $table_name }{'comments'} = [ @table_comments ];
            @table_comments = ();
        }

        $tables{ $table_name }{'order'}  = ++$table_order;
        $tables{ $table_name }{'name'}   = $table_name;
        $tables{ $table_name }{'owner'}  = $table_owner;
        $tables{ $table_name }{'system'} = $item[7];

        my $i = 0;
        for my $def ( @{ $item[5] } ) {
            if ( $def->{'supertype'} eq 'field' ) {
                my $field_name = $def->{'name'};
                $tables{ $table_name }{'fields'}{ $field_name } = 
                    { %$def, order => $i };
                $i++;
        
                if ( $def->{'is_primary_key'} ) {
                    push @{ $tables{ $table_name }{'constraints'} }, {
                        type   => 'primary_key',
                        fields => [ $field_name ],
                    };
                }
            }
            elsif ( $def->{'supertype'} eq 'constraint' ) {
                push @{ $tables{ $table_name }{'constraints'} }, $def;
            }
            else {
                push @{ $tables{ $table_name }{'indices'} }, $def;
            }
        }
    }

create_constraint : /create/i constraint 
    {
        @table_comments = ();
        push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
    }

create_index : /create/i index
    {
        @table_comments = ();
        push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
    }

create_procedure : /create/i /procedure/i procedure_body GO
    {
        @table_comments = ();
    }

procedure_body : not_go(s)

not_go : /((?!go).)*/

create_def : field
    | index
    | constraint

blank : /\s*/

field : field_name data_type nullable(?) 
    { 
        $return = { 
            supertype      => 'field',
            name           => $item{'field_name'}, 
            data_type      => $item{'data_type'}{'type'},
            size           => $item{'data_type'}{'size'},
            nullable       => $item[3][0], 
#            default        => $item{'default_val'}[0], 
#            is_auto_inc    => $item{'auto_inc'}[0], 
#            is_primary_key => $item{'primary_key'}[0], 
        } 
    }

constraint : primary_key_constraint
    | unique_constraint

field_name : WORD

index_name : WORD

table_name : WORD

data_type : WORD field_size(?) 
    { 
        $return = { 
            type => $item[1], 
            size => $item[2][0]
        } 
    }

lock : /lock/i /datarows/i

field_type : WORD

field_size : '(' num_range ')' { $item{'num_range'} }

num_range : DIGITS ',' DIGITS
    { $return = $item[1].','.$item[3] }
               | DIGITS
    { $return = $item[1] }


nullable : /not/i /null/i
    { $return = 0 }
    | /null/i
    { $return = 1 }

default_val : /default/i /(?:')?[\w\d.-]*(?:')?/ 
    { $item[2]=~s/'//g; $return=$item[2] }

auto_inc : /auto_increment/i { 1 }

primary_key_constraint : /primary/i /key/i index_name(?) parens_field_list 
    { 
        $return = { 
            supertype => 'constraint',
            name      => $item{'index_name'}[0],
            type      => 'primary_key',
            fields    => $item[4],
        } 
    }

unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
    { 
        $return = { 
            supertype => 'constraint',
            type      => 'unique',
            clustered => $item[2][0],
            name      => $item[4][0],
            table     => $item[5][0],
            fields    => $item[6],
        } 
    }

clustered : /clustered/i
    { $return = 1 }
    | /nonclustered/i
    { $return = 0 }

INDEX : /index/i

on_table : /on/i table_name
    { $return = $item[2] }

on_system : /on/i /system/i
    { $return = 1 }

index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list
    { 
        $return = { 
            supertype => 'index',
            type      => 'normal',
            clustered => $item[1][0],
            name      => $item[3][0],
            table     => $item[4][0],
            fields    => $item[5],
        } 
    }

parens_field_list : '(' field_name(s /,/) ')'
    { $item[2] }

ident : QUOTE(?) WORD '.' WORD QUOTE(?)
    { $return = { owner => $item[2], name => $item[4] } }
    | WORD
    { $return = { name  => $item[2] } }

GO : /^go/i

NAME : QUOTE(?) /\w+/ QUOTE(?)
    { $item[2] }

WORD : /[\w#]+/

DIGITS : /\d+/

COMMA : ','

QUOTE : /'/

};

# -------------------------------------------------------------------
sub parse {
    my ( $translator, $data ) = @_;
    my $parser = Parse::RecDescent->new($GRAMMAR);

    local $::RD_TRACE  = $translator->trace ? 1 : undef;
    local $DEBUG       = $translator->debug;

    unless (defined $parser) {
        return $translator->error("Error instantiating Parse::RecDescent ".
            "instance: Bad grammer");
    }

    my $result = $parser->startrule($data);
    return $translator->error( "Parse failed." ) unless defined $result;
    warn Dumper( $result ) if $DEBUG;

    my $schema = $translator->schema;
    my @tables = sort { 
        $result->{ $a }->{'order'} <=> $result->{ $b }->{'order'}
    } keys %{ $result };

    for my $table_name ( @tables ) {
        my $tdata = $result->{ $table_name };
        my $table = $schema->add_table( name => $tdata->{'name'} ) 
                    or die "Can't create table '$table_name': ", $schema->error;

        $table->comments( $tdata->{'comments'} );

        my @fields = sort { 
            $tdata->{'fields'}->{$a}->{'order'} 
            <=>
            $tdata->{'fields'}->{$b}->{'order'}
        } keys %{ $tdata->{'fields'} };

        for my $fname ( @fields ) {
            my $fdata = $tdata->{'fields'}{ $fname };
            my $field = $table->add_field(
                name              => $fdata->{'name'},
                data_type         => $fdata->{'data_type'},
                size              => $fdata->{'size'},
                default_value     => $fdata->{'default'},
                is_auto_increment => $fdata->{'is_auto_inc'},
                is_nullable       => $fdata->{'nullable'},
                comments          => $fdata->{'comments'},
            ) or die $table->error;

            $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};

            for my $qual ( qw[ binary unsigned zerofill list ] ) {
                if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
                    next if ref $val eq 'ARRAY' && !@$val;
                    $field->extra( $qual, $val );
                }
            }

            if ( $field->data_type =~ /(set|enum)/i && !$field->size ) {
                my %extra = $field->extra;
                my $longest = 0;
                for my $len ( map { length } @{ $extra{'list'} || [] } ) {
                    $longest = $len if $len > $longest;
                }
                $field->size( $longest ) if $longest;
            }

            for my $cdata ( @{ $fdata->{'constraints'} } ) {
                next unless $cdata->{'type'} eq 'foreign_key';
                $cdata->{'fields'} ||= [ $field->name ];
                push @{ $tdata->{'constraints'} }, $cdata;
            }
        }

        for my $idata ( @{ $tdata->{'indices'} || [] } ) {
            my $index  =  $table->add_index(
                name   => $idata->{'name'},
                type   => uc $idata->{'type'},
                fields => $idata->{'fields'},
            ) or die $table->error;
        }

        for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
            my $constraint       =  $table->add_constraint(
                name             => $cdata->{'name'},
                type             => $cdata->{'type'},
                fields           => $cdata->{'fields'},
                reference_table  => $cdata->{'reference_table'},
                reference_fields => $cdata->{'reference_fields'},
                match_type       => $cdata->{'match_type'} || '',
                on_delete        => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
                on_update        => $cdata->{'on_update'} || $cdata->{'on_update_do'},
            ) or die $table->error;
        }
    }

    return 1;
}

1;

# -------------------------------------------------------------------
# Every hero becomes a bore at last.
# Ralph Waldo Emerson
# -------------------------------------------------------------------

=pod

=head1 AUTHOR

Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.

=head1 SEE ALSO

SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.

=cut
Commit	Line	Data
16dc9970	1	package SQL::Translator::Parser::Sybase;
16dc9970	2
d529894e	3	# -------------------------------------------------------------------
d4f84dd1	4	# $Id: Sybase.pm 1440 2009-01-17 16:31:57Z jawnsy $
d529894e	5	# -------------------------------------------------------------------
478f608d	6	# Copyright (C) 2002-2009 SQLFairy Authors
16dc9970	7	#
d529894e	8	# This program is free software; you can redistribute it and/or
	9	# modify it under the terms of the GNU General Public License as
	10	# published by the Free Software Foundation; version 2.
	11	#
	12	# This program is distributed in the hope that it will be useful, but
	13	# WITHOUT ANY WARRANTY; without even the implied warranty of
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	# General Public License for more details.
	16	#
	17	# You should have received a copy of the GNU General Public License
	18	# along with this program; if not, write to the Free Software
	19	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	20	# 02111-1307 USA
	21	# -------------------------------------------------------------------
	22
	23	=head1 NAME
	24
	25	SQL::Translator::Parser::Sybase - parser for Sybase
	26
	27	=head1 SYNOPSIS
	28
	29	use SQL::Translator::Parser::Sybase;
	30
	31	=head1 DESCRIPTION
	32
0839c8a4	33	Mostly parses the output of "dbschema.pl," a Perl script freely
	34	available from http://www.midsomer.org. The parsing is not complete,
	35	however, and you would probably have much better luck using the
	36	DBI-Sybase parser included with SQL::Translator.
d529894e	37
d529894e	38	=cut
16dc9970	39
d9656bd5	40	use strict;
16dc9970	41
da06ac74	42	use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
da06ac74	43	$VERSION = '1.99';
d9656bd5	44	$DEBUG = 0 unless defined $DEBUG;
16dc9970	45
d9656bd5	46	use Data::Dumper;
	47	use Parse::RecDescent;
	48	use Exporter;
	49	use base qw(Exporter);
16dc9970	50
d9656bd5	51	@EXPORT_OK = qw(parse);
16dc9970	52
0839c8a4	53	$::RD_ERRORS = 1;
	54	$::RD_WARN = 1;
	55	$::RD_HINT = 1;
16dc9970	56
d9656bd5	57	$GRAMMAR = q{
16dc9970	58
d9656bd5	59	{
56746e2a	60	my ( %tables, @table_comments, $table_order );
d9656bd5	61	}
16dc9970	62
d9656bd5	63	startrule : statement(s) eofile { \%tables }
16dc9970	64
d9656bd5	65	eofile : /^\Z/
16dc9970	66
d9656bd5	67	statement : create_table
	68	\| create_procedure
	69	\| create_index
	70	\| create_constraint
	71	\| comment
	72	\| use
	73	\| setuser
	74	\| if
	75	\| print
	76	\| grant
	77	\| exec
	78	\| <error>
16dc9970	79
d9656bd5	80	use : /use/i WORD GO
d9656bd5	81	{ @table_comments = () }
16dc9970	82
d9656bd5	83	setuser : /setuser/i NAME GO
	84
	85	if : /if/i object_not_null begin if_command end GO
	86
	87	if_command : grant
	88	\| create_index
	89	\| create_constraint
	90
	91	object_not_null : /object_id/i '(' ident ')' /is not null/i
	92
	93	print : /\s/ /print/i /./
	94
	95	else : /else/i /.*/
	96
	97	begin : /begin/i
	98
	99	end : /end/i
	100
	101	grant : /grant/i /[^\n]*/
	102
	103	exec : exec_statement(s) GO
	104
	105	exec_statement : /exec/i /[^\n]+/
	106
	107	comment : comment_start comment_middle comment_end
	108	{
	109	my $comment = $item[2];
	110	$comment =~ s/^\s\|\s$//mg;
	111	$comment =~ s/^\*\s//mg;
	112	push @table_comments, $comment;
	113	}
16dc9970	114
d9656bd5	115	comment_start : /^\s\/\/
	116
	117	comment_end : /\s\\//
	118
	119	comment_middle : m{([^]+\|\(?!/))*}
	120
	121	#
	122	# Create table.
	123	#
	124	create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) GO
	125	{
	126	my $table_owner = $item[3]{'owner'};
	127	my $table_name = $item[3]{'name'};
	128
	129	if ( @table_comments ) {
	130	$tables{ $table_name }{'comments'} = [ @table_comments ];
	131	@table_comments = ();
16dc9970	132	}
16dc9970	133
56746e2a	134	$tables{ $table_name }{'order'} = ++$table_order;
d9656bd5	135	$tables{ $table_name }{'name'} = $table_name;
	136	$tables{ $table_name }{'owner'} = $table_owner;
	137	$tables{ $table_name }{'system'} = $item[7];
	138
	139	my $i = 0;
	140	for my $def ( @{ $item[5] } ) {
	141	if ( $def->{'supertype'} eq 'field' ) {
	142	my $field_name = $def->{'name'};
	143	$tables{ $table_name }{'fields'}{ $field_name } =
	144	{ %$def, order => $i };
	145	$i++;
	146
	147	if ( $def->{'is_primary_key'} ) {
	148	push @{ $tables{ $table_name }{'constraints'} }, {
	149	type => 'primary_key',
	150	fields => [ $field_name ],
	151	};
	152	}
	153	}
	154	elsif ( $def->{'supertype'} eq 'constraint' ) {
	155	push @{ $tables{ $table_name }{'constraints'} }, $def;
	156	}
	157	else {
	158	push @{ $tables{ $table_name }{'indices'} }, $def;
	159	}
16dc9970	160	}
d9656bd5	161	}
	162
	163	create_constraint : /create/i constraint
	164	{
	165	@table_comments = ();
	166	push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
	167	}
	168
	169	create_index : /create/i index
	170	{
	171	@table_comments = ();
	172	push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
	173	}
	174
	175	create_procedure : /create/i /procedure/i procedure_body GO
	176	{
	177	@table_comments = ();
	178	}
	179
	180	procedure_body : not_go(s)
	181
	182	not_go : /((?!go).)*/
	183
	184	create_def : field
	185	\| index
	186	\| constraint
	187
	188	blank : /\s*/
	189
	190	field : field_name data_type nullable(?)
	191	{
	192	$return = {
	193	supertype => 'field',
	194	name => $item{'field_name'},
	195	data_type => $item{'data_type'}{'type'},
	196	size => $item{'data_type'}{'size'},
	197	nullable => $item[3][0],
	198	# default => $item{'default_val'}[0],
	199	# is_auto_inc => $item{'auto_inc'}[0],
	200	# is_primary_key => $item{'primary_key'}[0],
	201	}
	202	}
	203
	204	constraint : primary_key_constraint
	205	\| unique_constraint
	206
	207	field_name : WORD
	208
	209	index_name : WORD
	210
	211	table_name : WORD
	212
	213	data_type : WORD field_size(?)
	214	{
	215	$return = {
	216	type => $item[1],
	217	size => $item[2][0]
	218	}
	219	}
	220
	221	lock : /lock/i /datarows/i
	222
	223	field_type : WORD
	224
225	field_size : '(' num_range ')' { $item{'num_range'} }
226
227	num_range : DIGITS ',' DIGITS
228	{ $return = $item[1].','.$item[3] }
229	\| DIGITS
230	{ $return = $item[1] }
231
16dc9970	232
d9656bd5	233	nullable : /not/i /null/i
	234	{ $return = 0 }
	235	\| /null/i
	236	{ $return = 1 }
16dc9970	237
d9656bd5	238	default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
d9656bd5	239	{ $item[2]=~s/'//g; $return=$item[2] }
16dc9970	240
d9656bd5	241	auto_inc : /auto_increment/i { 1 }
16dc9970	242
d9656bd5	243	primary_key_constraint : /primary/i /key/i index_name(?) parens_field_list
	244	{
	245	$return = {
	246	supertype => 'constraint',
	247	name => $item{'index_name'}[0],
	248	type => 'primary_key',
	249	fields => $item[4],
	250	}
	251	}
16dc9970	252
d9656bd5	253	unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
	254	{
	255	$return = {
	256	supertype => 'constraint',
	257	type => 'unique',
	258	clustered => $item[2][0],
	259	name => $item[4][0],
	260	table => $item[5][0],
	261	fields => $item[6],
	262	}
	263	}
	264
	265	clustered : /clustered/i
	266	{ $return = 1 }
	267	\| /nonclustered/i
	268	{ $return = 0 }
	269
	270	INDEX : /index/i
	271
	272	on_table : /on/i table_name
	273	{ $return = $item[2] }
	274
	275	on_system : /on/i /system/i
	276	{ $return = 1 }
	277
	278	index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list
	279	{
	280	$return = {
	281	supertype => 'index',
	282	type => 'normal',
	283	clustered => $item[1][0],
	284	name => $item[3][0],
	285	table => $item[4][0],
	286	fields => $item[5],
	287	}
	288	}
	289
	290	parens_field_list : '(' field_name(s /,/) ')'
	291	{ $item[2] }
	292
	293	ident : QUOTE(?) WORD '.' WORD QUOTE(?)
	294	{ $return = { owner => $item[2], name => $item[4] } }
	295	\| WORD
	296	{ $return = { name => $item[2] } }
	297
	298	GO : /^go/i
	299
	300	NAME : QUOTE(?) /\w+/ QUOTE(?)
	301	{ $item[2] }
	302
	303	WORD : /[\w#]+/
	304
	305	DIGITS : /\d+/
	306
	307	COMMA : ','
	308
	309	QUOTE : /'/
16dc9970	310
	311	};
	312
d9656bd5	313	# -------------------------------------------------------------------
	314	sub parse {
	315	my ( $translator, $data ) = @_;
	316	my $parser = Parse::RecDescent->new($GRAMMAR);
	317
	318	local $::RD_TRACE = $translator->trace ? 1 : undef;
	319	local $DEBUG = $translator->debug;
	320
	321	unless (defined $parser) {
	322	return $translator->error("Error instantiating Parse::RecDescent ".
	323	"instance: Bad grammer");
	324	}
	325
	326	my $result = $parser->startrule($data);
	327	return $translator->error( "Parse failed." ) unless defined $result;
	328	warn Dumper( $result ) if $DEBUG;
	329
	330	my $schema = $translator->schema;
	331	my @tables = sort {
	332	$result->{ $a }->{'order'} <=> $result->{ $b }->{'order'}
	333	} keys %{ $result };
	334
	335	for my $table_name ( @tables ) {
	336	my $tdata = $result->{ $table_name };
	337	my $table = $schema->add_table( name => $tdata->{'name'} )
	338	or die "Can't create table '$table_name': ", $schema->error;
	339
	340	$table->comments( $tdata->{'comments'} );
	341
	342	my @fields = sort {
	343	$tdata->{'fields'}->{$a}->{'order'}
	344	<=>
	345	$tdata->{'fields'}->{$b}->{'order'}
	346	} keys %{ $tdata->{'fields'} };
	347
	348	for my $fname ( @fields ) {
	349	my $fdata = $tdata->{'fields'}{ $fname };
	350	my $field = $table->add_field(
	351	name => $fdata->{'name'},
	352	data_type => $fdata->{'data_type'},
	353	size => $fdata->{'size'},
	354	default_value => $fdata->{'default'},
	355	is_auto_increment => $fdata->{'is_auto_inc'},
	356	is_nullable => $fdata->{'nullable'},
	357	comments => $fdata->{'comments'},
	358	) or die $table->error;
	359
	360	$table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
	361
	362	for my $qual ( qw[ binary unsigned zerofill list ] ) {
	363	if ( my $val = $fdata->{ $qual } \|\| $fdata->{ uc $qual } ) {
	364	next if ref $val eq 'ARRAY' && !@$val;
	365	$field->extra( $qual, $val );
	366	}
	367	}
	368
	369	if ( $field->data_type =~ /(set\|enum)/i && !$field->size ) {
	370	my %extra = $field->extra;
	371	my $longest = 0;
	372	for my $len ( map { length } @{ $extra{'list'} \|\| [] } ) {
	373	$longest = $len if $len > $longest;
	374	}
	375	$field->size( $longest ) if $longest;
	376	}
377
378	for my $cdata ( @{ $fdata->{'constraints'} } ) {
379	next unless $cdata->{'type'} eq 'foreign_key';
380	$cdata->{'fields'} \|\|= [ $field->name ];
381	push @{ $tdata->{'constraints'} }, $cdata;
382	}
383	}
384
385	for my $idata ( @{ $tdata->{'indices'} \|\| [] } ) {
386	my $index = $table->add_index(
387	name => $idata->{'name'},
388	type => uc $idata->{'type'},
389	fields => $idata->{'fields'},
390	) or die $table->error;
391	}
392
393	for my $cdata ( @{ $tdata->{'constraints'} \|\| [] } ) {
394	my $constraint = $table->add_constraint(
395	name => $cdata->{'name'},
396	type => $cdata->{'type'},
397	fields => $cdata->{'fields'},
398	reference_table => $cdata->{'reference_table'},
399	reference_fields => $cdata->{'reference_fields'},
400	match_type => $cdata->{'match_type'} \|\| '',
100684f3	401	on_delete => $cdata->{'on_delete'} \|\| $cdata->{'on_delete_do'},
100684f3	402	on_update => $cdata->{'on_update'} \|\| $cdata->{'on_update_do'},
d9656bd5	403	) or die $table->error;
	404	}
	405	}
	406
	407	return 1;
	408	}
	409
16dc9970	410	1;
16dc9970	411
d9656bd5	412	# -------------------------------------------------------------------
16dc9970	413	# Every hero becomes a bore at last.
16dc9970	414	# Ralph Waldo Emerson
d9656bd5	415	# -------------------------------------------------------------------
16dc9970	416
d529894e	417	=pod
16dc9970	418
	419	=head1 AUTHOR
	420
d9656bd5	421	Ken Y. Clark E<lt>kclark@cpan.orgE<gt>.
16dc9970	422
	423	=head1 SEE ALSO
	424
0839c8a4	425	SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.
16dc9970	426
16dc9970	427	=cut