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

package SQL::Translator::Parser::SQLServer;

# -------------------------------------------------------------------
# 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::SQLServer - parser for SQL Server

=head1 SYNOPSIS

  use SQL::Translator::Parser::SQLServer;

=head1 DESCRIPTION

Adapted from Parser::Sybase and mostly parses the output of
Producer::SQLServer.  The parsing is by no means complete and
should probably be considered a work in progress.

=cut

use strict;

use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
$VERSION = '1.60';
$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, %procedures, $proc_order, %views, $view_order );
}

startrule : statement(s) eofile
	{
		return {
			tables     => \%tables,
			procedures => \%procedures,
			views      => \%views,
		}
	}

eofile : /^\Z/

statement : create_table
    | create_procedure
    | create_view
    | create_index
    | create_constraint
    | comment
    | drop
    | 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 : /^\s*(?:#|-{2}).*\n/ 
    { 
        my $comment =  $item[1];
        $comment    =~ s/^\s*(#|--)\s*//;
        $comment    =~ s/\s*$//;
        $return     = $comment;
        push @table_comments, $comment;
    }

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 : m#^\s*\/\*#

comment_end : m#\s*\*\/#

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

drop : if_exists(?) /drop/i tbl_drop END_STATEMENT

tbl_drop : /table/i NAME

if_exists : /if exists/i '(' /select/i 'name' /from/i 'sysobjects' /[^\)]+/ ')'

#
# Create table.
#
create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
    { 
        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_constraint : /alter/i /table/i ident /add/i foreign_key_constraint END_STATEMENT
    {
        push @{ $tables{ $item[3]{name} }{constraints} }, $item[5];
    }

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

create_procedure : /create/i PROCEDURE WORD not_go GO
    {
        @table_comments = ();
        my $proc_name = $item[3];
        my $owner = '';
        my $sql = "$item[1] $item[2] $proc_name $item[4]";
        
        $procedures{ $proc_name }{'order'}  = ++$proc_order;
        $procedures{ $proc_name }{'name'}   = $proc_name;
        $procedures{ $proc_name }{'owner'}  = $owner;
        $procedures{ $proc_name }{'sql'}    = $sql;
    }

create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
    {
        @table_comments = ();
        my $proc_name = $item[6];
        my $owner = $item[4];
        my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
        
        $procedures{ $proc_name }{'order'}  = ++$proc_order;
        $procedures{ $proc_name }{'name'}   = $proc_name;
        $procedures{ $proc_name }{'owner'}  = $owner;
        $procedures{ $proc_name }{'sql'}    = $sql;
    }

PROCEDURE : /procedure/i
	| /function/i

create_view : /create/i /view/i WORD not_go GO
    {
        @table_comments = ();
        my $view_name = $item[3];
        my $sql = "$item[1] $item[2] $item[3] $item[4]";
        
        $views{ $view_name }{'order'}  = ++$view_order;
        $views{ $view_name }{'name'}   = $view_name;
        $views{ $view_name }{'sql'}    = $sql;
    }

not_go : /((?!\bgo\b).)*/is

create_def : constraint
    | index
    | field

blank : /\s*/

field : field_name data_type field_qualifier(s?)
    { 
        my %qualifiers  = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] };
        my $nullable = defined $qualifiers{'nullable'} 
                   ? $qualifiers{'nullable'} : 1;
        $return = { 
            supertype      => 'field',
            name           => $item{'field_name'}, 
            data_type      => $item{'data_type'}{'type'},
            size           => $item{'data_type'}{'size'},
            nullable       => $nullable, 
            default        => $qualifiers{'default_val'}, 
            is_auto_inc    => $qualifiers{'is_auto_inc'}, 
#            is_primary_key => $item{'primary_key'}[0], 
        } 
    }

field_qualifier : nullable
    { 
        $return = { 
             nullable => $item{'nullable'},
        } 
    }

field_qualifier : default_val
    { 
        $return = { 
             default_val => $item{'default_val'},
        } 
    }

field_qualifier : auto_inc
    { 
        $return = { 
             is_auto_inc => $item{'auto_inc'},
        } 
    }

constraint : primary_key_constraint
    | foreign_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 /null/i
    { $return = 'null' }
	| /default/i /'[^']*'/ 
    { $item[2]=~ s/'//g; $return = $item[2] }

auto_inc : /identity/i { 1 }

primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
    { 
        $return = { 
            supertype => 'constraint',
            name      => $item[2][0],
            type      => 'primary_key',
            fields    => $item[5],
        } 
    }

foreign_key_constraint : /constraint/i index_name(?) /foreign/i /key/i parens_field_list /references/i table_name parens_field_list(?) on_delete(?) on_update(?)
    {
        $return = { 
            supertype        => 'constraint',
            name             => $item[2][0],
            type             => 'foreign_key',
            fields           => $item[5],
            reference_table  => $item[7],
            reference_fields => $item[8][0], 
            on_delete        => $item[9][0],
            on_update        => $item[10][0],
        } 
    }

unique_constraint : /constraint/i index_name(?) /unique/i parens_field_list
    {
        $return = { 
            supertype => 'constraint',
            type      => 'unique',
            name      => $item[2][0],
            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],
        } 
    }

on_delete : /on delete/i reference_option
    { $item[2] }

on_update : /on update/i reference_option
    { $item[2] }

reference_option: /cascade/i
    { $item[1] }
    | /no action/i
    { $item[1] }

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 END_STATEMENT
    { 
        $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[1] } }

END_STATEMENT : ';'
	| GO

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->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
    } keys %{ $result->{tables} };

    for my $table_name ( @tables ) {
        my $tdata = $result->{tables}->{ $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;
        }
    }
    
    my @procedures = sort { 
        $result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
    } keys %{ $result->{procedures} };
    for my $proc_name (@procedures) {
    	$schema->add_procedure(
    		name  => $proc_name,
    		owner => $result->{procedures}->{$proc_name}->{owner},
    		sql   => $result->{procedures}->{$proc_name}->{sql},
		);
    }

    my @views = sort { 
        $result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
    } keys %{ $result->{views} };
    for my $view_name (keys %{ $result->{views} }) {
    	$schema->add_view(
    		name => $view_name,
    		sql  => $result->{views}->{$view_name}->{sql},
		);
    }

    return 1;
}

1;

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

=pod

=head1 AUTHOR

Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
Sybase parser, I just tweaked it for SQLServer. Thanks.

=head1 SEE ALSO

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

=cut
Commit	Line	Data
be4469ab	1	package SQL::Translator::Parser::SQLServer;
	2
	3	# -------------------------------------------------------------------
478f608d	4	# Copyright (C) 2002-2009 SQLFairy Authors
be4469ab	5	#
	6	# This program is free software; you can redistribute it and/or
	7	# modify it under the terms of the GNU General Public License as
	8	# published by the Free Software Foundation; version 2.
	9	#
	10	# This program is distributed in the hope that it will be useful, but
	11	# WITHOUT ANY WARRANTY; without even the implied warranty of
	12	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	# General Public License for more details.
	14	#
	15	# You should have received a copy of the GNU General Public License
	16	# along with this program; if not, write to the Free Software
	17	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	18	# 02111-1307 USA
	19	# -------------------------------------------------------------------
	20
	21	=head1 NAME
	22
	23	SQL::Translator::Parser::SQLServer - parser for SQL Server
	24
	25	=head1 SYNOPSIS
	26
	27	use SQL::Translator::Parser::SQLServer;
	28
	29	=head1 DESCRIPTION
	30
	31	Adapted from Parser::Sybase and mostly parses the output of
	32	Producer::SQLServer. The parsing is by no means complete and
	33	should probably be considered a work in progress.
	34
	35	=cut
	36
	37	use strict;
	38
da06ac74	39	use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
ba506e52	40	$VERSION = '1.60';
be4469ab	41	$DEBUG = 0 unless defined $DEBUG;
	42
	43	use Data::Dumper;
	44	use Parse::RecDescent;
	45	use Exporter;
	46	use base qw(Exporter);
	47
	48	@EXPORT_OK = qw(parse);
	49
	50	$::RD_ERRORS = 1;
	51	$::RD_WARN = 1;
	52	$::RD_HINT = 1;
	53
	54	$GRAMMAR = q{
	55
	56	{
ff3dd529	57	my ( %tables, @table_comments, $table_order, %procedures, $proc_order, %views, $view_order );
be4469ab	58	}
be4469ab	59
ff3dd529	60	startrule : statement(s) eofile
	61	{
	62	return {
	63	tables => \%tables,
	64	procedures => \%procedures,
	65	views => \%views,
	66	}
	67	}
be4469ab	68
	69	eofile : /^\Z/
	70
	71	statement : create_table
	72	\| create_procedure
ff3dd529	73	\| create_view
be4469ab	74	\| create_index
	75	\| create_constraint
	76	\| comment
e2fb9ad3	77	\| drop
be4469ab	78	\| use
	79	\| setuser
	80	\| if
	81	\| print
	82	\| grant
	83	\| exec
	84	\| <error>
	85
	86	use : /use/i WORD GO
	87	{ @table_comments = () }
	88
	89	setuser : /setuser/i NAME GO
	90
	91	if : /if/i object_not_null begin if_command end GO
	92
	93	if_command : grant
	94	\| create_index
	95	\| create_constraint
	96
	97	object_not_null : /object_id/i '(' ident ')' /is not null/i
	98
	99	print : /\s/ /print/i /./
	100
	101	else : /else/i /.*/
	102
	103	begin : /begin/i
	104
	105	end : /end/i
	106
	107	grant : /grant/i /[^\n]*/
	108
	109	exec : exec_statement(s) GO
	110
	111	exec_statement : /exec/i /[^\n]+/
	112
	113	comment : /^\s(?:#\|-{2}).\n/
	114	{
	115	my $comment = $item[1];
	116	$comment =~ s/^\s(#\|--)\s//;
	117	$comment =~ s/\s*$//;
	118	$return = $comment;
	119	push @table_comments, $comment;
	120	}
	121
	122	comment : comment_start comment_middle comment_end
	123	{
	124	my $comment = $item[2];
	125	$comment =~ s/^\s\|\s$//mg;
	126	$comment =~ s/^\*\s//mg;
	127	push @table_comments, $comment;
	128	}
	129
	130	comment_start : m#^\s\/\#
	131
	132	comment_end : m#\s\\/#
	133
	134	comment_middle : m{([^]+\|\(?!/))*}
	135
e2fb9ad3	136	drop : if_exists(?) /drop/i tbl_drop END_STATEMENT
	137
	138	tbl_drop : /table/i NAME
	139
	140	if_exists : /if exists/i '(' /select/i 'name' /from/i 'sysobjects' /[^\)]+/ ')'
	141
be4469ab	142	#
	143	# Create table.
	144	#
ff3dd529	145	create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
be4469ab	146	{
	147	my $table_owner = $item[3]{'owner'};
	148	my $table_name = $item[3]{'name'};
	149
	150	if ( @table_comments ) {
	151	$tables{ $table_name }{'comments'} = [ @table_comments ];
	152	@table_comments = ();
	153	}
	154
	155	$tables{ $table_name }{'order'} = ++$table_order;
	156	$tables{ $table_name }{'name'} = $table_name;
	157	$tables{ $table_name }{'owner'} = $table_owner;
	158	$tables{ $table_name }{'system'} = $item[7];
	159
	160	my $i = 0;
	161	for my $def ( @{ $item[5] } ) {
	162	if ( $def->{'supertype'} eq 'field' ) {
	163	my $field_name = $def->{'name'};
	164	$tables{ $table_name }{'fields'}{ $field_name } =
	165	{ %$def, order => $i };
	166	$i++;
	167
	168	if ( $def->{'is_primary_key'} ) {
	169	push @{ $tables{ $table_name }{'constraints'} }, {
	170	type => 'primary_key',
	171	fields => [ $field_name ],
	172	};
	173	}
	174	}
	175	elsif ( $def->{'supertype'} eq 'constraint' ) {
	176	push @{ $tables{ $table_name }{'constraints'} }, $def;
	177	}
	178	else {
	179	push @{ $tables{ $table_name }{'indices'} }, $def;
	180	}
	181	}
	182	}
	183
f9a5ee79	184	create_constraint : /create/i constraint
be4469ab	185	{
	186	@table_comments = ();
	187	push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
	188	}
	189
f9a5ee79	190	create_constraint : /alter/i /table/i ident /add/i foreign_key_constraint END_STATEMENT
	191	{
	192	push @{ $tables{ $item[3]{name} }{constraints} }, $item[5];
	193	}
	194
be4469ab	195	create_index : /create/i index
	196	{
	197	@table_comments = ();
	198	push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
	199	}
	200
ff3dd529	201	create_procedure : /create/i PROCEDURE WORD not_go GO
be4469ab	202	{
be4469ab	203	@table_comments = ();
ff3dd529	204	my $proc_name = $item[3];
	205	my $owner = '';
	206	my $sql = "$item[1] $item[2] $proc_name $item[4]";
	207
	208	$procedures{ $proc_name }{'order'} = ++$proc_order;
	209	$procedures{ $proc_name }{'name'} = $proc_name;
	210	$procedures{ $proc_name }{'owner'} = $owner;
	211	$procedures{ $proc_name }{'sql'} = $sql;
be4469ab	212	}
be4469ab	213
ff3dd529	214	create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
	215	{
	216	@table_comments = ();
	217	my $proc_name = $item[6];
	218	my $owner = $item[4];
	219	my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
	220
	221	$procedures{ $proc_name }{'order'} = ++$proc_order;
	222	$procedures{ $proc_name }{'name'} = $proc_name;
	223	$procedures{ $proc_name }{'owner'} = $owner;
	224	$procedures{ $proc_name }{'sql'} = $sql;
	225	}
	226
	227	PROCEDURE : /procedure/i
	228	\| /function/i
	229
ff3dd529	230	create_view : /create/i /view/i WORD not_go GO
	231	{
	232	@table_comments = ();
	233	my $view_name = $item[3];
	234	my $sql = "$item[1] $item[2] $item[3] $item[4]";
	235
	236	$views{ $view_name }{'order'} = ++$view_order;
	237	$views{ $view_name }{'name'} = $view_name;
	238	$views{ $view_name }{'sql'} = $sql;
	239	}
	240
ff3dd529	241	not_go : /((?!\bgo\b).)*/is
be4469ab	242
	243	create_def : constraint
	244	\| index
	245	\| field
	246
	247	blank : /\s*/
	248
	249	field : field_name data_type field_qualifier(s?)
	250	{
	251	my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} \|\| [] };
	252	my $nullable = defined $qualifiers{'nullable'}
	253	? $qualifiers{'nullable'} : 1;
	254	$return = {
	255	supertype => 'field',
	256	name => $item{'field_name'},
	257	data_type => $item{'data_type'}{'type'},
	258	size => $item{'data_type'}{'size'},
	259	nullable => $nullable,
	260	default => $qualifiers{'default_val'},
7cfa0d36	261	is_auto_inc => $qualifiers{'is_auto_inc'},
be4469ab	262	# is_primary_key => $item{'primary_key'}[0],
	263	}
	264	}
	265
	266	field_qualifier : nullable
	267	{
	268	$return = {
	269	nullable => $item{'nullable'},
	270	}
	271	}
	272
	273	field_qualifier : default_val
	274	{
	275	$return = {
	276	default_val => $item{'default_val'},
	277	}
	278	}
	279
	280	field_qualifier : auto_inc
	281	{
	282	$return = {
	283	is_auto_inc => $item{'auto_inc'},
	284	}
	285	}
	286
	287	constraint : primary_key_constraint
	288	\| foreign_key_constraint
	289	\| unique_constraint
	290
	291	field_name : WORD
	292
	293	index_name : WORD
	294
	295	table_name : WORD
	296
	297	data_type : WORD field_size(?)
	298	{
	299	$return = {
	300	type => $item[1],
	301	size => $item[2][0]
	302	}
	303	}
	304
	305	lock : /lock/i /datarows/i
	306
	307	field_type : WORD
	308
	309	field_size : '(' num_range ')' { $item{'num_range'} }
	310
	311	num_range : DIGITS ',' DIGITS
	312	{ $return = $item[1].','.$item[3] }
	313	\| DIGITS
	314	{ $return = $item[1] }
	315
	316
	317	nullable : /not/i /null/i
	318	{ $return = 0 }
	319	\| /null/i
	320	{ $return = 1 }
	321
2a8fb466	322	default_val : /default/i /null/i
	323	{ $return = 'null' }
	324	\| /default/i /'[^']*'/
be4469ab	325	{ $item[2]=~ s/'//g; $return = $item[2] }
	326
	327	auto_inc : /identity/i { 1 }
	328
	329	primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
	330	{
	331	$return = {
	332	supertype => 'constraint',
	333	name => $item[2][0],
	334	type => 'primary_key',
	335	fields => $item[5],
	336	}
	337	}
	338
100684f3	339	foreign_key_constraint : /constraint/i index_name(?) /foreign/i /key/i parens_field_list /references/i table_name parens_field_list(?) on_delete(?) on_update(?)
be4469ab	340	{
	341	$return = {
	342	supertype => 'constraint',
	343	name => $item[2][0],
	344	type => 'foreign_key',
	345	fields => $item[5],
	346	reference_table => $item[7],
	347	reference_fields => $item[8][0],
100684f3	348	on_delete => $item[9][0],
100684f3	349	on_update => $item[10][0],
be4469ab	350	}
	351	}
	352
e2fb9ad3	353	unique_constraint : /constraint/i index_name(?) /unique/i parens_field_list
	354	{
	355	$return = {
	356	supertype => 'constraint',
	357	type => 'unique',
	358	name => $item[2][0],
	359	fields => $item[4],
	360	}
	361	}
	362
be4469ab	363	unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
	364	{
	365	$return = {
	366	supertype => 'constraint',
	367	type => 'unique',
	368	clustered => $item[2][0],
	369	name => $item[4][0],
	370	table => $item[5][0],
	371	fields => $item[6],
	372	}
	373	}
	374
100684f3	375	on_delete : /on delete/i reference_option
be4469ab	376	{ $item[2] }
be4469ab	377
100684f3	378	on_update : /on update/i reference_option
be4469ab	379	{ $item[2] }
be4469ab	380
ff3dd529	381	reference_option: /cascade/i
	382	{ $item[1] }
	383	\| /no action/i
	384	{ $item[1] }
be4469ab	385
	386	clustered : /clustered/i
	387	{ $return = 1 }
	388	\| /nonclustered/i
	389	{ $return = 0 }
	390
	391	INDEX : /index/i
	392
	393	on_table : /on/i table_name
	394	{ $return = $item[2] }
	395
	396	on_system : /on/i /system/i
	397	{ $return = 1 }
	398
e2fb9ad3	399	index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list END_STATEMENT
be4469ab	400	{
	401	$return = {
	402	supertype => 'index',
	403	type => 'normal',
	404	clustered => $item[1][0],
	405	name => $item[3][0],
	406	table => $item[4][0],
	407	fields => $item[5],
	408	}
	409	}
	410
	411	parens_field_list : '(' field_name(s /,/) ')'
	412	{ $item[2] }
	413
	414	ident : QUOTE(?) WORD '.' WORD QUOTE(?)
	415	{ $return = { owner => $item[2], name => $item[4] } }
	416	\| WORD
	417	{ $return = { name => $item[1] } }
	418
ff3dd529	419	END_STATEMENT : ';'
	420	\| GO
	421
be4469ab	422	GO : /^go/i
	423
	424	NAME : QUOTE(?) /\w+/ QUOTE(?)
	425	{ $item[2] }
	426
	427	WORD : /[\w#]+/
	428
	429	DIGITS : /\d+/
	430
	431	COMMA : ','
	432
	433	QUOTE : /'/
	434
	435	};
	436
	437	# -------------------------------------------------------------------
	438	sub parse {
	439	my ( $translator, $data ) = @_;
	440	my $parser = Parse::RecDescent->new($GRAMMAR);
	441
	442	local $::RD_TRACE = $translator->trace ? 1 : undef;
	443	local $DEBUG = $translator->debug;
	444
	445	unless (defined $parser) {
	446	return $translator->error("Error instantiating Parse::RecDescent ".
	447	"instance: Bad grammer");
	448	}
	449
	450	my $result = $parser->startrule($data);
	451	return $translator->error( "Parse failed." ) unless defined $result;
	452	warn Dumper( $result ) if $DEBUG;
	453
	454	my $schema = $translator->schema;
	455	my @tables = sort {
ff3dd529	456	$result->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
ff3dd529	457	} keys %{ $result->{tables} };
be4469ab	458
be4469ab	459	for my $table_name ( @tables ) {
ff3dd529	460	my $tdata = $result->{tables}->{ $table_name };
be4469ab	461	my $table = $schema->add_table( name => $tdata->{'name'} )
	462	or die "Can't create table '$table_name': ", $schema->error;
	463
	464	$table->comments( $tdata->{'comments'} );
	465
	466	my @fields = sort {
	467	$tdata->{'fields'}->{$a}->{'order'}
	468	<=>
	469	$tdata->{'fields'}->{$b}->{'order'}
	470	} keys %{ $tdata->{'fields'} };
	471
	472	for my $fname ( @fields ) {
	473	my $fdata = $tdata->{'fields'}{ $fname };
	474	my $field = $table->add_field(
	475	name => $fdata->{'name'},
	476	data_type => $fdata->{'data_type'},
	477	size => $fdata->{'size'},
	478	default_value => $fdata->{'default'},
	479	is_auto_increment => $fdata->{'is_auto_inc'},
	480	is_nullable => $fdata->{'nullable'},
	481	comments => $fdata->{'comments'},
	482	) or die $table->error;
	483
	484	$table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
	485
	486	for my $qual ( qw[ binary unsigned zerofill list ] ) {
	487	if ( my $val = $fdata->{ $qual } \|\| $fdata->{ uc $qual } ) {
	488	next if ref $val eq 'ARRAY' && !@$val;
	489	$field->extra( $qual, $val );
	490	}
	491	}
	492
	493	if ( $field->data_type =~ /(set\|enum)/i && !$field->size ) {
	494	my %extra = $field->extra;
	495	my $longest = 0;
	496	for my $len ( map { length } @{ $extra{'list'} \|\| [] } ) {
	497	$longest = $len if $len > $longest;
	498	}
	499	$field->size( $longest ) if $longest;
	500	}
	501
	502	for my $cdata ( @{ $fdata->{'constraints'} } ) {
	503	next unless $cdata->{'type'} eq 'foreign_key';
	504	$cdata->{'fields'} \|\|= [ $field->name ];
	505	push @{ $tdata->{'constraints'} }, $cdata;
	506	}
	507	}
	508
	509	for my $idata ( @{ $tdata->{'indices'} \|\| [] } ) {
	510	my $index = $table->add_index(
	511	name => $idata->{'name'},
	512	type => uc $idata->{'type'},
	513	fields => $idata->{'fields'},
	514	) or die $table->error;
	515	}
	516
	517	for my $cdata ( @{ $tdata->{'constraints'} \|\| [] } ) {
	518	my $constraint = $table->add_constraint(
	519	name => $cdata->{'name'},
	520	type => $cdata->{'type'},
	521	fields => $cdata->{'fields'},
	522	reference_table => $cdata->{'reference_table'},
	523	reference_fields => $cdata->{'reference_fields'},
	524	match_type => $cdata->{'match_type'} \|\| '',
100684f3	525	on_delete => $cdata->{'on_delete'} \|\| $cdata->{'on_delete_do'},
100684f3	526	on_update => $cdata->{'on_update'} \|\| $cdata->{'on_update_do'},
be4469ab	527	) or die $table->error;
	528	}
	529	}
ff3dd529	530
	531	my @procedures = sort {
	532	$result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
	533	} keys %{ $result->{procedures} };
	534	for my $proc_name (@procedures) {
	535	$schema->add_procedure(
	536	name => $proc_name,
	537	owner => $result->{procedures}->{$proc_name}->{owner},
	538	sql => $result->{procedures}->{$proc_name}->{sql},
	539	);
	540	}
	541
	542	my @views = sort {
	543	$result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
	544	} keys %{ $result->{views} };
	545	for my $view_name (keys %{ $result->{views} }) {
	546	$schema->add_view(
	547	name => $view_name,
	548	sql => $result->{views}->{$view_name}->{sql},
	549	);
	550	}
be4469ab	551
	552	return 1;
	553	}
	554
	555	1;
	556
	557	# -------------------------------------------------------------------
	558	# Every hero becomes a bore at last.
	559	# Ralph Waldo Emerson
	560	# -------------------------------------------------------------------
	561
	562	=pod
	563
	564	=head1 AUTHOR
	565
	566	Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
	567	Sybase parser, I just tweaked it for SQLServer. Thanks.
	568
	569	=head1 SEE ALSO
	570
	571	SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.
	572
	573	=cut