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

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

# -------------------------------------------------------------------
# $Id: SQLServer.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::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 $GRAMMAR @EXPORT_OK ];
$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
    | 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{([^*]+|\*(?!/))*}

#
# 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_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 : /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 ';'
    { 
        $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	# -------------------------------------------------------------------
d4f84dd1	4	# $Id: SQLServer.pm 1440 2009-01-17 16:31:57Z jawnsy $
be4469ab	5	# -------------------------------------------------------------------
478f608d	6	# Copyright (C) 2002-2009 SQLFairy Authors
be4469ab	7	#
	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::SQLServer - parser for SQL Server
	26
	27	=head1 SYNOPSIS
	28
	29	use SQL::Translator::Parser::SQLServer;
	30
	31	=head1 DESCRIPTION
	32
	33	Adapted from Parser::Sybase and mostly parses the output of
	34	Producer::SQLServer. The parsing is by no means complete and
	35	should probably be considered a work in progress.
	36
	37	=cut
	38
	39	use strict;
	40
478f608d	41	use vars qw[ $DEBUG $GRAMMAR @EXPORT_OK ];
be4469ab	42	$DEBUG = 0 unless defined $DEBUG;
	43
	44	use Data::Dumper;
	45	use Parse::RecDescent;
	46	use Exporter;
	47	use base qw(Exporter);
	48
	49	@EXPORT_OK = qw(parse);
	50
	51	$::RD_ERRORS = 1;
	52	$::RD_WARN = 1;
	53	$::RD_HINT = 1;
	54
	55	$GRAMMAR = q{
	56
	57	{
ff3dd529	58	my ( %tables, @table_comments, $table_order, %procedures, $proc_order, %views, $view_order );
be4469ab	59	}
be4469ab	60
ff3dd529	61	startrule : statement(s) eofile
	62	{
	63	return {
	64	tables => \%tables,
	65	procedures => \%procedures,
	66	views => \%views,
	67	}
	68	}
be4469ab	69
	70	eofile : /^\Z/
	71
	72	statement : create_table
	73	\| create_procedure
ff3dd529	74	\| create_view
be4469ab	75	\| create_index
	76	\| create_constraint
	77	\| comment
	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
	136	#
	137	# Create table.
	138	#
ff3dd529	139	create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
be4469ab	140	{
	141	my $table_owner = $item[3]{'owner'};
	142	my $table_name = $item[3]{'name'};
	143
	144	if ( @table_comments ) {
	145	$tables{ $table_name }{'comments'} = [ @table_comments ];
	146	@table_comments = ();
	147	}
	148
	149	$tables{ $table_name }{'order'} = ++$table_order;
	150	$tables{ $table_name }{'name'} = $table_name;
	151	$tables{ $table_name }{'owner'} = $table_owner;
	152	$tables{ $table_name }{'system'} = $item[7];
	153
	154	my $i = 0;
	155	for my $def ( @{ $item[5] } ) {
	156	if ( $def->{'supertype'} eq 'field' ) {
	157	my $field_name = $def->{'name'};
	158	$tables{ $table_name }{'fields'}{ $field_name } =
	159	{ %$def, order => $i };
	160	$i++;
	161
	162	if ( $def->{'is_primary_key'} ) {
	163	push @{ $tables{ $table_name }{'constraints'} }, {
	164	type => 'primary_key',
	165	fields => [ $field_name ],
	166	};
	167	}
	168	}
	169	elsif ( $def->{'supertype'} eq 'constraint' ) {
	170	push @{ $tables{ $table_name }{'constraints'} }, $def;
	171	}
	172	else {
	173	push @{ $tables{ $table_name }{'indices'} }, $def;
	174	}
	175	}
	176	}
	177
	178	create_constraint : /create/i constraint
	179	{
	180	@table_comments = ();
	181	push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
	182	}
	183
	184	create_index : /create/i index
	185	{
	186	@table_comments = ();
	187	push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
	188	}
	189
ff3dd529	190	create_procedure : /create/i PROCEDURE WORD not_go GO
be4469ab	191	{
be4469ab	192	@table_comments = ();
ff3dd529	193	my $proc_name = $item[3];
	194	my $owner = '';
	195	my $sql = "$item[1] $item[2] $proc_name $item[4]";
	196
	197	$procedures{ $proc_name }{'order'} = ++$proc_order;
	198	$procedures{ $proc_name }{'name'} = $proc_name;
	199	$procedures{ $proc_name }{'owner'} = $owner;
	200	$procedures{ $proc_name }{'sql'} = $sql;
be4469ab	201	}
be4469ab	202
ff3dd529	203	create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
	204	{
	205	@table_comments = ();
	206	my $proc_name = $item[6];
	207	my $owner = $item[4];
	208	my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
	209
	210	$procedures{ $proc_name }{'order'} = ++$proc_order;
	211	$procedures{ $proc_name }{'name'} = $proc_name;
	212	$procedures{ $proc_name }{'owner'} = $owner;
	213	$procedures{ $proc_name }{'sql'} = $sql;
	214	}
	215
	216	PROCEDURE : /procedure/i
	217	\| /function/i
	218
ff3dd529	219	create_view : /create/i /view/i WORD not_go GO
	220	{
	221	@table_comments = ();
	222	my $view_name = $item[3];
	223	my $sql = "$item[1] $item[2] $item[3] $item[4]";
	224
	225	$views{ $view_name }{'order'} = ++$view_order;
	226	$views{ $view_name }{'name'} = $view_name;
	227	$views{ $view_name }{'sql'} = $sql;
	228	}
	229
ff3dd529	230	not_go : /((?!\bgo\b).)*/is
be4469ab	231
	232	create_def : constraint
	233	\| index
	234	\| field
	235
	236	blank : /\s*/
	237
	238	field : field_name data_type field_qualifier(s?)
	239	{
	240	my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} \|\| [] };
	241	my $nullable = defined $qualifiers{'nullable'}
	242	? $qualifiers{'nullable'} : 1;
	243	$return = {
	244	supertype => 'field',
	245	name => $item{'field_name'},
	246	data_type => $item{'data_type'}{'type'},
	247	size => $item{'data_type'}{'size'},
	248	nullable => $nullable,
	249	default => $qualifiers{'default_val'},
7cfa0d36	250	is_auto_inc => $qualifiers{'is_auto_inc'},
be4469ab	251	# is_primary_key => $item{'primary_key'}[0],
	252	}
	253	}
	254
	255	field_qualifier : nullable
	256	{
	257	$return = {
	258	nullable => $item{'nullable'},
	259	}
	260	}
	261
	262	field_qualifier : default_val
	263	{
	264	$return = {
	265	default_val => $item{'default_val'},
	266	}
	267	}
	268
	269	field_qualifier : auto_inc
	270	{
	271	$return = {
	272	is_auto_inc => $item{'auto_inc'},
	273	}
	274	}
	275
	276	constraint : primary_key_constraint
	277	\| foreign_key_constraint
	278	\| unique_constraint
	279
	280	field_name : WORD
	281
	282	index_name : WORD
	283
	284	table_name : WORD
	285
	286	data_type : WORD field_size(?)
	287	{
	288	$return = {
	289	type => $item[1],
	290	size => $item[2][0]
	291	}
	292	}
	293
	294	lock : /lock/i /datarows/i
	295
	296	field_type : WORD
	297
	298	field_size : '(' num_range ')' { $item{'num_range'} }
	299
	300	num_range : DIGITS ',' DIGITS
	301	{ $return = $item[1].','.$item[3] }
	302	\| DIGITS
	303	{ $return = $item[1] }
	304
	305
	306	nullable : /not/i /null/i
	307	{ $return = 0 }
	308	\| /null/i
	309	{ $return = 1 }
	310
2a8fb466	311	default_val : /default/i /null/i
	312	{ $return = 'null' }
	313	\| /default/i /'[^']*'/
be4469ab	314	{ $item[2]=~ s/'//g; $return = $item[2] }
	315
	316	auto_inc : /identity/i { 1 }
	317
	318	primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
	319	{
	320	$return = {
	321	supertype => 'constraint',
	322	name => $item[2][0],
	323	type => 'primary_key',
	324	fields => $item[5],
	325	}
	326	}
	327
100684f3	328	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	329	{
	330	$return = {
	331	supertype => 'constraint',
	332	name => $item[2][0],
	333	type => 'foreign_key',
	334	fields => $item[5],
	335	reference_table => $item[7],
	336	reference_fields => $item[8][0],
100684f3	337	on_delete => $item[9][0],
100684f3	338	on_update => $item[10][0],
be4469ab	339	}
	340	}
	341
	342	unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
	343	{
	344	$return = {
	345	supertype => 'constraint',
	346	type => 'unique',
	347	clustered => $item[2][0],
	348	name => $item[4][0],
	349	table => $item[5][0],
	350	fields => $item[6],
	351	}
	352	}
	353
100684f3	354	on_delete : /on delete/i reference_option
be4469ab	355	{ $item[2] }
be4469ab	356
100684f3	357	on_update : /on update/i reference_option
be4469ab	358	{ $item[2] }
be4469ab	359
ff3dd529	360	reference_option: /cascade/i
	361	{ $item[1] }
	362	\| /no action/i
	363	{ $item[1] }
be4469ab	364
	365	clustered : /clustered/i
	366	{ $return = 1 }
	367	\| /nonclustered/i
	368	{ $return = 0 }
	369
	370	INDEX : /index/i
	371
	372	on_table : /on/i table_name
	373	{ $return = $item[2] }
	374
	375	on_system : /on/i /system/i
	376	{ $return = 1 }
	377
	378	index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list ';'
	379	{
	380	$return = {
	381	supertype => 'index',
	382	type => 'normal',
	383	clustered => $item[1][0],
	384	name => $item[3][0],
	385	table => $item[4][0],
	386	fields => $item[5],
	387	}
	388	}
	389
	390	parens_field_list : '(' field_name(s /,/) ')'
	391	{ $item[2] }
	392
	393	ident : QUOTE(?) WORD '.' WORD QUOTE(?)
	394	{ $return = { owner => $item[2], name => $item[4] } }
	395	\| WORD
	396	{ $return = { name => $item[1] } }
	397
ff3dd529	398	END_STATEMENT : ';'
	399	\| GO
	400
be4469ab	401	GO : /^go/i
	402
	403	NAME : QUOTE(?) /\w+/ QUOTE(?)
	404	{ $item[2] }
	405
	406	WORD : /[\w#]+/
	407
	408	DIGITS : /\d+/
	409
	410	COMMA : ','
	411
	412	QUOTE : /'/
	413
	414	};
	415
	416	# -------------------------------------------------------------------
	417	sub parse {
	418	my ( $translator, $data ) = @_;
	419	my $parser = Parse::RecDescent->new($GRAMMAR);
	420
	421	local $::RD_TRACE = $translator->trace ? 1 : undef;
	422	local $DEBUG = $translator->debug;
	423
	424	unless (defined $parser) {
	425	return $translator->error("Error instantiating Parse::RecDescent ".
	426	"instance: Bad grammer");
	427	}
	428
	429	my $result = $parser->startrule($data);
	430	return $translator->error( "Parse failed." ) unless defined $result;
	431	warn Dumper( $result ) if $DEBUG;
	432
	433	my $schema = $translator->schema;
	434	my @tables = sort {
ff3dd529	435	$result->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
ff3dd529	436	} keys %{ $result->{tables} };
be4469ab	437
be4469ab	438	for my $table_name ( @tables ) {
ff3dd529	439	my $tdata = $result->{tables}->{ $table_name };
be4469ab	440	my $table = $schema->add_table( name => $tdata->{'name'} )
	441	or die "Can't create table '$table_name': ", $schema->error;
	442
	443	$table->comments( $tdata->{'comments'} );
	444
	445	my @fields = sort {
	446	$tdata->{'fields'}->{$a}->{'order'}
	447	<=>
	448	$tdata->{'fields'}->{$b}->{'order'}
	449	} keys %{ $tdata->{'fields'} };
	450
	451	for my $fname ( @fields ) {
	452	my $fdata = $tdata->{'fields'}{ $fname };
	453	my $field = $table->add_field(
	454	name => $fdata->{'name'},
	455	data_type => $fdata->{'data_type'},
	456	size => $fdata->{'size'},
	457	default_value => $fdata->{'default'},
	458	is_auto_increment => $fdata->{'is_auto_inc'},
	459	is_nullable => $fdata->{'nullable'},
	460	comments => $fdata->{'comments'},
	461	) or die $table->error;
	462
	463	$table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
	464
	465	for my $qual ( qw[ binary unsigned zerofill list ] ) {
	466	if ( my $val = $fdata->{ $qual } \|\| $fdata->{ uc $qual } ) {
	467	next if ref $val eq 'ARRAY' && !@$val;
	468	$field->extra( $qual, $val );
	469	}
	470	}
	471
	472	if ( $field->data_type =~ /(set\|enum)/i && !$field->size ) {
	473	my %extra = $field->extra;
	474	my $longest = 0;
	475	for my $len ( map { length } @{ $extra{'list'} \|\| [] } ) {
	476	$longest = $len if $len > $longest;
	477	}
	478	$field->size( $longest ) if $longest;
	479	}
	480
	481	for my $cdata ( @{ $fdata->{'constraints'} } ) {
	482	next unless $cdata->{'type'} eq 'foreign_key';
	483	$cdata->{'fields'} \|\|= [ $field->name ];
	484	push @{ $tdata->{'constraints'} }, $cdata;
	485	}
	486	}
	487
	488	for my $idata ( @{ $tdata->{'indices'} \|\| [] } ) {
	489	my $index = $table->add_index(
	490	name => $idata->{'name'},
	491	type => uc $idata->{'type'},
	492	fields => $idata->{'fields'},
	493	) or die $table->error;
	494	}
	495
	496	for my $cdata ( @{ $tdata->{'constraints'} \|\| [] } ) {
	497	my $constraint = $table->add_constraint(
	498	name => $cdata->{'name'},
	499	type => $cdata->{'type'},
	500	fields => $cdata->{'fields'},
	501	reference_table => $cdata->{'reference_table'},
	502	reference_fields => $cdata->{'reference_fields'},
	503	match_type => $cdata->{'match_type'} \|\| '',
100684f3	504	on_delete => $cdata->{'on_delete'} \|\| $cdata->{'on_delete_do'},
100684f3	505	on_update => $cdata->{'on_update'} \|\| $cdata->{'on_update_do'},
be4469ab	506	) or die $table->error;
	507	}
	508	}
ff3dd529	509
	510	my @procedures = sort {
	511	$result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
	512	} keys %{ $result->{procedures} };
	513	for my $proc_name (@procedures) {
	514	$schema->add_procedure(
	515	name => $proc_name,
	516	owner => $result->{procedures}->{$proc_name}->{owner},
	517	sql => $result->{procedures}->{$proc_name}->{sql},
	518	);
	519	}
	520
	521	my @views = sort {
	522	$result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
	523	} keys %{ $result->{views} };
	524	for my $view_name (keys %{ $result->{views} }) {
	525	$schema->add_view(
	526	name => $view_name,
	527	sql => $result->{views}->{$view_name}->{sql},
	528	);
	529	}
be4469ab	530
	531	return 1;
	532	}
	533
	534	1;
	535
	536	# -------------------------------------------------------------------
	537	# Every hero becomes a bore at last.
	538	# Ralph Waldo Emerson
	539	# -------------------------------------------------------------------
	540
	541	=pod
	542
	543	=head1 AUTHOR
	544
	545	Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
	546	Sybase parser, I just tweaked it for SQLServer. Thanks.
	547
	548	=head1 SEE ALSO
	549
	550	SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.
	551
	552	=cut