[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 = '1.59';
$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 );

    sub _err {
      my $max_lines = 5;
      my @up_to_N_lines = split (/\n/, $_[1], $max_lines + 1);
      die sprintf ("Unable to parse line %d:\n%s\n",
        $_[0],
        join "\n", (map { "'$_'" } @up_to_N_lines[0..$max_lines - 1 ]), @up_to_N_lines > $max_lines ? '...' : ()
      );
    }

}

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
    | /^\Z/ | { _err ($thisline, $text) }

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] }
   | /default/i WORD
    { $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;
be4469ab	2
44659089	3	# -------------------------------------------------------------------
	4	# Copyright (C) 2002-2009 SQLFairy Authors
	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
be4469ab	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 ];
11ad2df9	40	$VERSION = '1.59';
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
e5f65c59	56	{
ff3dd529	57	my ( %tables, @table_comments, $table_order, %procedures, $proc_order, %views, $view_order );
28224573	58
	59	sub _err {
	60	my $max_lines = 5;
	61	my @up_to_N_lines = split (/\n/, $_[1], $max_lines + 1);
	62	die sprintf ("Unable to parse line %d:\n%s\n",
	63	$_[0],
	64	join "\n", (map { "'$_'" } @up_to_N_lines[0..$max_lines - 1 ]), @up_to_N_lines > $max_lines ? '...' : ()
	65	);
	66	}
	67
be4469ab	68	}
be4469ab	69
ff3dd529	70	startrule : statement(s) eofile
e5f65c59	71	{
	72	return {
	73	tables => \%tables,
	74	procedures => \%procedures,
	75	views => \%views,
	76	}
	77	}
be4469ab	78
	79	eofile : /^\Z/
	80
	81	statement : create_table
	82	\| create_procedure
ff3dd529	83	\| create_view
be4469ab	84	\| create_index
	85	\| create_constraint
	86	\| comment
e2fb9ad3	87	\| drop
be4469ab	88	\| use
	89	\| setuser
	90	\| if
	91	\| print
	92	\| grant
	93	\| exec
28224573	94	\| /^\Z/ \| { _err ($thisline, $text) }
be4469ab	95
e5f65c59	96	use : /use/i WORD GO
be4469ab	97	{ @table_comments = () }
	98
	99	setuser : /setuser/i NAME GO
	100
	101	if : /if/i object_not_null begin if_command end GO
	102
	103	if_command : grant
	104	\| create_index
	105	\| create_constraint
	106
	107	object_not_null : /object_id/i '(' ident ')' /is not null/i
	108
	109	print : /\s/ /print/i /./
	110
	111	else : /else/i /.*/
	112
	113	begin : /begin/i
	114
	115	end : /end/i
	116
	117	grant : /grant/i /[^\n]*/
	118
	119	exec : exec_statement(s) GO
	120
	121	exec_statement : /exec/i /[^\n]+/
	122
e5f65c59	123	comment : /^\s(?:#\|-{2}).\n/
e5f65c59	124	{
be4469ab	125	my $comment = $item[1];
	126	$comment =~ s/^\s(#\|--)\s//;
	127	$comment =~ s/\s*$//;
	128	$return = $comment;
	129	push @table_comments, $comment;
	130	}
	131
	132	comment : comment_start comment_middle comment_end
e5f65c59	133	{
be4469ab	134	my $comment = $item[2];
	135	$comment =~ s/^\s\|\s$//mg;
	136	$comment =~ s/^\*\s//mg;
	137	push @table_comments, $comment;
	138	}
	139
	140	comment_start : m#^\s\/\#
	141
	142	comment_end : m#\s\\/#
	143
	144	comment_middle : m{([^]+\|\(?!/))*}
	145
e2fb9ad3	146	drop : if_exists(?) /drop/i tbl_drop END_STATEMENT
	147
	148	tbl_drop : /table/i NAME
	149
	150	if_exists : /if exists/i '(' /select/i 'name' /from/i 'sysobjects' /[^\)]+/ ')'
	151
be4469ab	152	#
	153	# Create table.
	154	#
ff3dd529	155	create_table : /create/i /table/i ident '(' create_def(s /,/) ')' lock(?) on_system(?) END_STATEMENT
e5f65c59	156	{
be4469ab	157	my $table_owner = $item[3]{'owner'};
	158	my $table_name = $item[3]{'name'};
	159
	160	if ( @table_comments ) {
	161	$tables{ $table_name }{'comments'} = [ @table_comments ];
	162	@table_comments = ();
	163	}
	164
	165	$tables{ $table_name }{'order'} = ++$table_order;
	166	$tables{ $table_name }{'name'} = $table_name;
	167	$tables{ $table_name }{'owner'} = $table_owner;
	168	$tables{ $table_name }{'system'} = $item[7];
	169
	170	my $i = 0;
	171	for my $def ( @{ $item[5] } ) {
	172	if ( $def->{'supertype'} eq 'field' ) {
	173	my $field_name = $def->{'name'};
e5f65c59	174	$tables{ $table_name }{'fields'}{ $field_name } =
be4469ab	175	{ %$def, order => $i };
be4469ab	176	$i++;
e5f65c59	177
be4469ab	178	if ( $def->{'is_primary_key'} ) {
	179	push @{ $tables{ $table_name }{'constraints'} }, {
	180	type => 'primary_key',
	181	fields => [ $field_name ],
	182	};
	183	}
	184	}
	185	elsif ( $def->{'supertype'} eq 'constraint' ) {
	186	push @{ $tables{ $table_name }{'constraints'} }, $def;
	187	}
	188	else {
	189	push @{ $tables{ $table_name }{'indices'} }, $def;
	190	}
	191	}
	192	}
	193
f9a5ee79	194	create_constraint : /create/i constraint
be4469ab	195	{
	196	@table_comments = ();
	197	push @{ $tables{ $item[2]{'table'} }{'constraints'} }, $item[2];
	198	}
	199
f9a5ee79	200	create_constraint : /alter/i /table/i ident /add/i foreign_key_constraint END_STATEMENT
	201	{
	202	push @{ $tables{ $item[3]{name} }{constraints} }, $item[5];
	203	}
	204
be4469ab	205	create_index : /create/i index
	206	{
	207	@table_comments = ();
	208	push @{ $tables{ $item[2]{'table'} }{'indices'} }, $item[2];
	209	}
	210
ff3dd529	211	create_procedure : /create/i PROCEDURE WORD not_go GO
be4469ab	212	{
be4469ab	213	@table_comments = ();
ff3dd529	214	my $proc_name = $item[3];
	215	my $owner = '';
	216	my $sql = "$item[1] $item[2] $proc_name $item[4]";
e5f65c59	217
ff3dd529	218	$procedures{ $proc_name }{'order'} = ++$proc_order;
	219	$procedures{ $proc_name }{'name'} = $proc_name;
	220	$procedures{ $proc_name }{'owner'} = $owner;
	221	$procedures{ $proc_name }{'sql'} = $sql;
be4469ab	222	}
be4469ab	223
ff3dd529	224	create_procedure : /create/i PROCEDURE '[' WORD '].' WORD not_go GO
	225	{
	226	@table_comments = ();
	227	my $proc_name = $item[6];
	228	my $owner = $item[4];
	229	my $sql = "$item[1] $item[2] [$owner].$proc_name $item[7]";
e5f65c59	230
ff3dd529	231	$procedures{ $proc_name }{'order'} = ++$proc_order;
	232	$procedures{ $proc_name }{'name'} = $proc_name;
	233	$procedures{ $proc_name }{'owner'} = $owner;
	234	$procedures{ $proc_name }{'sql'} = $sql;
	235	}
	236
	237	PROCEDURE : /procedure/i
e5f65c59	238	\| /function/i
ff3dd529	239
ff3dd529	240	create_view : /create/i /view/i WORD not_go GO
	241	{
	242	@table_comments = ();
	243	my $view_name = $item[3];
	244	my $sql = "$item[1] $item[2] $item[3] $item[4]";
e5f65c59	245
ff3dd529	246	$views{ $view_name }{'order'} = ++$view_order;
	247	$views{ $view_name }{'name'} = $view_name;
	248	$views{ $view_name }{'sql'} = $sql;
	249	}
	250
ff3dd529	251	not_go : /((?!\bgo\b).)*/is
be4469ab	252
	253	create_def : constraint
	254	\| index
	255	\| field
	256
	257	blank : /\s*/
	258
	259	field : field_name data_type field_qualifier(s?)
e5f65c59	260	{
be4469ab	261	my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} \|\| [] };
e5f65c59	262	my $nullable = defined $qualifiers{'nullable'}
be4469ab	263	? $qualifiers{'nullable'} : 1;
e5f65c59	264	$return = {
be4469ab	265	supertype => 'field',
e5f65c59	266	name => $item{'field_name'},
be4469ab	267	data_type => $item{'data_type'}{'type'},
be4469ab	268	size => $item{'data_type'}{'size'},
e5f65c59	269	nullable => $nullable,
	270	default => $qualifiers{'default_val'},
	271	is_auto_inc => $qualifiers{'is_auto_inc'},
	272	# is_primary_key => $item{'primary_key'}[0],
	273	}
be4469ab	274	}
	275
	276	field_qualifier : nullable
e5f65c59	277	{
e5f65c59	278	$return = {
be4469ab	279	nullable => $item{'nullable'},
e5f65c59	280	}
be4469ab	281	}
	282
	283	field_qualifier : default_val
e5f65c59	284	{
e5f65c59	285	$return = {
be4469ab	286	default_val => $item{'default_val'},
e5f65c59	287	}
be4469ab	288	}
	289
	290	field_qualifier : auto_inc
e5f65c59	291	{
e5f65c59	292	$return = {
be4469ab	293	is_auto_inc => $item{'auto_inc'},
e5f65c59	294	}
be4469ab	295	}
	296
	297	constraint : primary_key_constraint
	298	\| foreign_key_constraint
	299	\| unique_constraint
	300
	301	field_name : WORD
	302
	303	index_name : WORD
	304
	305	table_name : WORD
	306
e5f65c59	307	data_type : WORD field_size(?)
	308	{
	309	$return = {
	310	type => $item[1],
be4469ab	311	size => $item[2][0]
e5f65c59	312	}
be4469ab	313	}
	314
	315	lock : /lock/i /datarows/i
	316
	317	field_type : WORD
	318
	319	field_size : '(' num_range ')' { $item{'num_range'} }
	320
	321	num_range : DIGITS ',' DIGITS
	322	{ $return = $item[1].','.$item[3] }
	323	\| DIGITS
	324	{ $return = $item[1] }
	325
	326
	327	nullable : /not/i /null/i
	328	{ $return = 0 }
	329	\| /null/i
	330	{ $return = 1 }
	331
2a8fb466	332	default_val : /default/i /null/i
2a8fb466	333	{ $return = 'null' }
e5f65c59	334	\| /default/i /'[^']*'/
be4469ab	335	{ $item[2]=~ s/'//g; $return = $item[2] }
e5f65c59	336	\| /default/i WORD
06baeb21	337	{ $return = $item[2] }
be4469ab	338
	339	auto_inc : /identity/i { 1 }
	340
	341	primary_key_constraint : /constraint/i index_name(?) /primary/i /key/i parens_field_list
e5f65c59	342	{
e5f65c59	343	$return = {
be4469ab	344	supertype => 'constraint',
	345	name => $item[2][0],
	346	type => 'primary_key',
	347	fields => $item[5],
e5f65c59	348	}
be4469ab	349	}
be4469ab	350
100684f3	351	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	352	{
e5f65c59	353	$return = {
be4469ab	354	supertype => 'constraint',
	355	name => $item[2][0],
	356	type => 'foreign_key',
	357	fields => $item[5],
	358	reference_table => $item[7],
e5f65c59	359	reference_fields => $item[8][0],
100684f3	360	on_delete => $item[9][0],
100684f3	361	on_update => $item[10][0],
e5f65c59	362	}
be4469ab	363	}
be4469ab	364
e2fb9ad3	365	unique_constraint : /constraint/i index_name(?) /unique/i parens_field_list
e2fb9ad3	366	{
e5f65c59	367	$return = {
e2fb9ad3	368	supertype => 'constraint',
	369	type => 'unique',
	370	name => $item[2][0],
	371	fields => $item[4],
	372	}
	373	}
	374
be4469ab	375	unique_constraint : /unique/i clustered(?) INDEX(?) index_name(?) on_table(?) parens_field_list
e5f65c59	376	{
e5f65c59	377	$return = {
be4469ab	378	supertype => 'constraint',
	379	type => 'unique',
	380	clustered => $item[2][0],
	381	name => $item[4][0],
	382	table => $item[5][0],
	383	fields => $item[6],
e5f65c59	384	}
be4469ab	385	}
be4469ab	386
100684f3	387	on_delete : /on delete/i reference_option
be4469ab	388	{ $item[2] }
be4469ab	389
100684f3	390	on_update : /on update/i reference_option
be4469ab	391	{ $item[2] }
be4469ab	392
ff3dd529	393	reference_option: /cascade/i
	394	{ $item[1] }
	395	\| /no action/i
	396	{ $item[1] }
be4469ab	397
	398	clustered : /clustered/i
	399	{ $return = 1 }
	400	\| /nonclustered/i
	401	{ $return = 0 }
	402
	403	INDEX : /index/i
	404
	405	on_table : /on/i table_name
	406	{ $return = $item[2] }
	407
	408	on_system : /on/i /system/i
	409	{ $return = 1 }
	410
e2fb9ad3	411	index : clustered(?) INDEX index_name(?) on_table(?) parens_field_list END_STATEMENT
e5f65c59	412	{
e5f65c59	413	$return = {
be4469ab	414	supertype => 'index',
	415	type => 'normal',
	416	clustered => $item[1][0],
	417	name => $item[3][0],
	418	table => $item[4][0],
	419	fields => $item[5],
e5f65c59	420	}
be4469ab	421	}
	422
	423	parens_field_list : '(' field_name(s /,/) ')'
	424	{ $item[2] }
	425
	426	ident : QUOTE(?) WORD '.' WORD QUOTE(?)
	427	{ $return = { owner => $item[2], name => $item[4] } }
	428	\| WORD
	429	{ $return = { name => $item[1] } }
	430
ff3dd529	431	END_STATEMENT : ';'
e5f65c59	432	\| GO
ff3dd529	433
be4469ab	434	GO : /^go/i
	435
	436	NAME : QUOTE(?) /\w+/ QUOTE(?)
	437	{ $item[2] }
	438
	439	WORD : /[\w#]+/
	440
	441	DIGITS : /\d+/
	442
	443	COMMA : ','
	444
	445	QUOTE : /'/
	446
	447	};
	448
	449	# -------------------------------------------------------------------
	450	sub parse {
	451	my ( $translator, $data ) = @_;
	452	my $parser = Parse::RecDescent->new($GRAMMAR);
	453
	454	local $::RD_TRACE = $translator->trace ? 1 : undef;
	455	local $DEBUG = $translator->debug;
	456
	457	unless (defined $parser) {
	458	return $translator->error("Error instantiating Parse::RecDescent ".
	459	"instance: Bad grammer");
	460	}
	461
	462	my $result = $parser->startrule($data);
	463	return $translator->error( "Parse failed." ) unless defined $result;
	464	warn Dumper( $result ) if $DEBUG;
	465
	466	my $schema = $translator->schema;
e5f65c59	467	my @tables = sort {
ff3dd529	468	$result->{tables}->{ $a }->{'order'} <=> $result->{tables}->{ $b }->{'order'}
ff3dd529	469	} keys %{ $result->{tables} };
be4469ab	470
be4469ab	471	for my $table_name ( @tables ) {
ff3dd529	472	my $tdata = $result->{tables}->{ $table_name };
e5f65c59	473	my $table = $schema->add_table( name => $tdata->{'name'} )
be4469ab	474	or die "Can't create table '$table_name': ", $schema->error;
	475
	476	$table->comments( $tdata->{'comments'} );
	477
e5f65c59	478	my @fields = sort {
e5f65c59	479	$tdata->{'fields'}->{$a}->{'order'}
be4469ab	480	<=>
	481	$tdata->{'fields'}->{$b}->{'order'}
	482	} keys %{ $tdata->{'fields'} };
	483
	484	for my $fname ( @fields ) {
	485	my $fdata = $tdata->{'fields'}{ $fname };
	486	my $field = $table->add_field(
	487	name => $fdata->{'name'},
	488	data_type => $fdata->{'data_type'},
	489	size => $fdata->{'size'},
	490	default_value => $fdata->{'default'},
	491	is_auto_increment => $fdata->{'is_auto_inc'},
	492	is_nullable => $fdata->{'nullable'},
	493	comments => $fdata->{'comments'},
	494	) or die $table->error;
	495
	496	$table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
	497
	498	for my $qual ( qw[ binary unsigned zerofill list ] ) {
	499	if ( my $val = $fdata->{ $qual } \|\| $fdata->{ uc $qual } ) {
	500	next if ref $val eq 'ARRAY' && !@$val;
	501	$field->extra( $qual, $val );
	502	}
	503	}
	504
	505	if ( $field->data_type =~ /(set\|enum)/i && !$field->size ) {
	506	my %extra = $field->extra;
	507	my $longest = 0;
	508	for my $len ( map { length } @{ $extra{'list'} \|\| [] } ) {
	509	$longest = $len if $len > $longest;
	510	}
	511	$field->size( $longest ) if $longest;
	512	}
	513
	514	for my $cdata ( @{ $fdata->{'constraints'} } ) {
	515	next unless $cdata->{'type'} eq 'foreign_key';
	516	$cdata->{'fields'} \|\|= [ $field->name ];
	517	push @{ $tdata->{'constraints'} }, $cdata;
	518	}
	519	}
	520
	521	for my $idata ( @{ $tdata->{'indices'} \|\| [] } ) {
	522	my $index = $table->add_index(
	523	name => $idata->{'name'},
	524	type => uc $idata->{'type'},
	525	fields => $idata->{'fields'},
	526	) or die $table->error;
	527	}
	528
	529	for my $cdata ( @{ $tdata->{'constraints'} \|\| [] } ) {
	530	my $constraint = $table->add_constraint(
	531	name => $cdata->{'name'},
	532	type => $cdata->{'type'},
	533	fields => $cdata->{'fields'},
	534	reference_table => $cdata->{'reference_table'},
	535	reference_fields => $cdata->{'reference_fields'},
	536	match_type => $cdata->{'match_type'} \|\| '',
100684f3	537	on_delete => $cdata->{'on_delete'} \|\| $cdata->{'on_delete_do'},
100684f3	538	on_update => $cdata->{'on_update'} \|\| $cdata->{'on_update_do'},
be4469ab	539	) or die $table->error;
	540	}
	541	}
e5f65c59	542
e5f65c59	543	my @procedures = sort {
ff3dd529	544	$result->{procedures}->{ $a }->{'order'} <=> $result->{procedures}->{ $b }->{'order'}
	545	} keys %{ $result->{procedures} };
	546	for my $proc_name (@procedures) {
e5f65c59	547	$schema->add_procedure(
	548	name => $proc_name,
	549	owner => $result->{procedures}->{$proc_name}->{owner},
	550	sql => $result->{procedures}->{$proc_name}->{sql},
	551	);
ff3dd529	552	}
ff3dd529	553
e5f65c59	554	my @views = sort {
ff3dd529	555	$result->{views}->{ $a }->{'order'} <=> $result->{views}->{ $b }->{'order'}
	556	} keys %{ $result->{views} };
	557	for my $view_name (keys %{ $result->{views} }) {
e5f65c59	558	$schema->add_view(
	559	name => $view_name,
	560	sql => $result->{views}->{$view_name}->{sql},
	561	);
ff3dd529	562	}
be4469ab	563
	564	return 1;
	565	}
	566
	567	1;
	568
	569	# -------------------------------------------------------------------
	570	# Every hero becomes a bore at last.
	571	# Ralph Waldo Emerson
	572	# -------------------------------------------------------------------
	573
	574	=pod
	575
	576	=head1 AUTHOR
	577
	578	Chris Hilton E<lt>chris@dctank.comE<gt> - Bulk of code from
	579	Sybase parser, I just tweaked it for SQLServer. Thanks.
	580
	581	=head1 SEE ALSO
	582
	583	SQL::Translator, SQL::Translator::Parser::DBI, L<http://www.midsomer.org/>.
	584
	585	=cut