package SQL::Translator::Parser::MySQL;
=head1 NAME
SQL::Translator::Parser::MySQL - parser for MySQL
=head1 SYNOPSIS
use SQL::Translator;
use SQL::Translator::Parser::MySQL;
my $translator = SQL::Translator->new;
$translator->parser("SQL::Translator::Parser::MySQL");
=head1 DESCRIPTION
The grammar is influenced heavily by Tim Bunce's "mysql2ora" grammar.
Here's the word from the MySQL site
(http://www.mysql.com/doc/en/CREATE_TABLE.html):
CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)]
[table_options] [select_statement]
or
CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name LIKE old_table_name;
create_definition:
col_name type [NOT NULL | NULL] [DEFAULT default_value] [AUTO_INCREMENT]
[PRIMARY KEY] [reference_definition]
or PRIMARY KEY (index_col_name,...)
or KEY [index_name] (index_col_name,...)
or INDEX [index_name] (index_col_name,...)
or UNIQUE [INDEX] [index_name] (index_col_name,...)
or FULLTEXT [INDEX] [index_name] (index_col_name,...)
or [CONSTRAINT symbol] FOREIGN KEY [index_name] (index_col_name,...)
[reference_definition]
or CHECK (expr)
type:
TINYINT[(length)] [UNSIGNED] [ZEROFILL]
or SMALLINT[(length)] [UNSIGNED] [ZEROFILL]
or MEDIUMINT[(length)] [UNSIGNED] [ZEROFILL]
or INT[(length)] [UNSIGNED] [ZEROFILL]
or INTEGER[(length)] [UNSIGNED] [ZEROFILL]
or BIGINT[(length)] [UNSIGNED] [ZEROFILL]
or REAL[(length,decimals)] [UNSIGNED] [ZEROFILL]
or DOUBLE[(length,decimals)] [UNSIGNED] [ZEROFILL]
or FLOAT[(length,decimals)] [UNSIGNED] [ZEROFILL]
or DECIMAL(length,decimals) [UNSIGNED] [ZEROFILL]
or NUMERIC(length,decimals) [UNSIGNED] [ZEROFILL]
or CHAR(length) [BINARY]
or VARCHAR(length) [BINARY]
or DATE
or TIME
or TIMESTAMP
or DATETIME
or TINYBLOB
or BLOB
or MEDIUMBLOB
or LONGBLOB
or TINYTEXT
or TEXT
or MEDIUMTEXT
or LONGTEXT
or ENUM(value1,value2,value3,...)
or SET(value1,value2,value3,...)
index_col_name:
col_name [(length)]
reference_definition:
REFERENCES tbl_name [(index_col_name,...)]
[MATCH FULL | MATCH PARTIAL]
[ON DELETE reference_option]
[ON UPDATE reference_option]
reference_option:
RESTRICT | CASCADE | SET NULL | NO ACTION | SET DEFAULT
table_options:
TYPE = {BDB | HEAP | ISAM | InnoDB | MERGE | MRG_MYISAM | MYISAM }
or ENGINE = {BDB | HEAP | ISAM | InnoDB | MERGE | MRG_MYISAM | MYISAM }
or AUTO_INCREMENT = #
or AVG_ROW_LENGTH = #
or [ DEFAULT ] CHARACTER SET charset_name
or CHECKSUM = {0 | 1}
or COLLATE collation_name
or COMMENT = "string"
or MAX_ROWS = #
or MIN_ROWS = #
or PACK_KEYS = {0 | 1 | DEFAULT}
or PASSWORD = "string"
or DELAY_KEY_WRITE = {0 | 1}
or ROW_FORMAT= { default | dynamic | fixed | compressed }
or RAID_TYPE= {1 | STRIPED | RAID0 } RAID_CHUNKS=# RAID_CHUNKSIZE=#
or UNION = (table_name,[table_name...])
or INSERT_METHOD= {NO | FIRST | LAST }
or DATA DIRECTORY="absolute path to directory"
or INDEX DIRECTORY="absolute path to directory"
A subset of the ALTER TABLE syntax that allows addition of foreign keys:
ALTER [IGNORE] TABLE tbl_name alter_specification [, alter_specification] ...
alter_specification:
ADD [CONSTRAINT [symbol]]
FOREIGN KEY [index_name] (index_col_name,...)
[reference_definition]
A subset of INSERT that we ignore:
INSERT anything
=head1 ARGUMENTS
This parser takes a single optional parser_arg C<mysql_parser_version>, which
provides the desired version for the target database. Any statement in the processed
dump file, that is commented with a version higher than the one supplied, will be stripped.
The default C<mysql_parser_version> is set to the conservative value of 40000 (MySQL 4.0)
Valid version specifiers for C<mysql_parser_version> are listed L<here|SQL::Translator::Utils/parse_mysql_version>
More information about the MySQL comment-syntax: L<http://dev.mysql.com/doc/refman/5.0/en/comments.html>
=cut
use strict;
use warnings;
our $VERSION = '1.59';
our $DEBUG;
$DEBUG = 0 unless defined $DEBUG;
use Data::Dumper;
use Storable qw(dclone);
use DBI qw(:sql_types);
use SQL::Translator::Utils qw/parse_mysql_version ddl_parser_instance/;
use base qw(Exporter);
our @EXPORT_OK = qw(parse);
our %type_mapping = ();
use constant DEFAULT_PARSER_VERSION => 40000;
our $GRAMMAR = << 'END_OF_GRAMMAR';
{
my ( $database_name, %tables, $table_order, @table_comments, %views,
$view_order, %procedures, $proc_order );
my $delimiter = ';';
}
#
# The "eofile" rule makes the parser fail if any "statement" rule
# fails. Otherwise, the first successful match by a "statement"
# won't cause the failure needed to know that the parse, as a whole,
# failed. -ky
#
startrule : statement(s) eofile {
{
database_name => $database_name,
tables => \%tables,
views => \%views,
procedures => \%procedures,
}
}
eofile : /^\Z/
statement : comment
| use
| set
| drop
| create
| alter
| insert
| delimiter
| empty_statement
| <error>
use : /use/i WORD "$delimiter"
{
$database_name = $item[2];
@table_comments = ();
}
set : /set/i not_delimiter "$delimiter"
{ @table_comments = () }
drop : /drop/i TABLE not_delimiter "$delimiter"
drop : /drop/i WORD(s) "$delimiter"
{ @table_comments = () }
bit:
/(b'[01]{1,64}')/ |
/(b"[01]{1,64}")/
string :
# MySQL strings, unlike common SQL strings, can be double-quoted or
# single-quoted, and you can escape the delmiters by doubling (but only the
# delimiter) or by backslashing.
/'(\\.|''|[^\\\'])*'/ |
/"(\\.|""|[^\\\"])*"/
# For reference, std sql str: /(?:(?:\')(?:[^\']*(?:(?:\'\')[^\']*)*)(?:\'))//
nonstring : /[^;\'"]+/
statement_body : string | nonstring
insert : /insert/i statement_body(s?) "$delimiter"
delimiter : /delimiter/i /[\S]+/
{ $delimiter = $item[2] }
empty_statement : "$delimiter"
alter : ALTER TABLE table_name alter_specification(s /,/) "$delimiter"
{
my $table_name = $item{'table_name'};
die "Cannot ALTER table '$table_name'; it does not exist"
unless $tables{ $table_name };
for my $definition ( @{ $item[4] } ) {
$definition->{'extra'}->{'alter'} = 1;
push @{ $tables{ $table_name }{'constraints'} }, $definition;
}
}
alter_specification : ADD foreign_key_def
{ $return = $item[2] }
create : CREATE /database/i WORD "$delimiter"
{ @table_comments = () }
create : CREATE TEMPORARY(?) TABLE opt_if_not_exists(?) table_name '(' create_definition(s /,/) /(,\s*)?\)/ table_option(s?) "$delimiter"
{
my $table_name = $item{'table_name'};
die "There is more than one definition for $table_name"
if ($tables{$table_name});
$tables{ $table_name }{'order'} = ++$table_order;
$tables{ $table_name }{'table_name'} = $table_name;
if ( @table_comments ) {
$tables{ $table_name }{'comments'} = [ @table_comments ];
@table_comments = ();
}
my $i = 1;
for my $definition ( @{ $item[7] } ) {
if ( $definition->{'supertype'} eq 'field' ) {
my $field_name = $definition->{'name'};
$tables{ $table_name }{'fields'}{ $field_name } =
{ %$definition, order => $i };
$i++;
if ( $definition->{'is_primary_key'} ) {
push @{ $tables{ $table_name }{'constraints'} },
{
type => 'primary_key',
fields => [ $field_name ],
}
;
}
}
elsif ( $definition->{'supertype'} eq 'constraint' ) {
push @{ $tables{ $table_name }{'constraints'} }, $definition;
}
elsif ( $definition->{'supertype'} eq 'index' ) {
push @{ $tables{ $table_name }{'indices'} }, $definition;
}
}
if ( my @options = @{ $item{'table_option(s?)'} } ) {
for my $option ( @options ) {
my ( $key, $value ) = each %$option;
if ( $key eq 'comment' ) {
push @{ $tables{ $table_name }{'comments'} }, $value;
}
else {
push @{ $tables{ $table_name }{'table_options'} }, $option;
}
}
}
1;
}
opt_if_not_exists : /if not exists/i
create : CREATE UNIQUE(?) /(index|key)/i index_name /on/i table_name '(' field_name(s /,/) ')' "$delimiter"
{
@table_comments = ();
push @{ $tables{ $item{'table_name'} }{'indices'} },
{
name => $item[4],
type => $item[2][0] ? 'unique' : 'normal',
fields => $item[8],
}
;
}
create : CREATE /trigger/i NAME not_delimiter "$delimiter"
{
@table_comments = ();
}
create : CREATE PROCEDURE NAME not_delimiter "$delimiter"
{
@table_comments = ();
my $func_name = $item[3];
my $owner = '';
my $sql = "$item[1] $item[2] $item[3] $item[4]";
$procedures{ $func_name }{'order'} = ++$proc_order;
$procedures{ $func_name }{'name'} = $func_name;
$procedures{ $func_name }{'owner'} = $owner;
$procedures{ $func_name }{'sql'} = $sql;
}
PROCEDURE : /procedure/i
| /function/i
create : CREATE or_replace(?) create_view_option(s?) /view/i NAME /as/i view_select_statement "$delimiter"
{
@table_comments = ();
my $view_name = $item{'NAME'};
my $select_sql = $item{'view_select_statement'};
my $options = $item{'create_view_option(s?)'};
my $sql = join(q{ },
grep { defined and length }
map { ref $_ eq 'ARRAY' ? @$_ : $_ }
$item{'CREATE'},
$item{'or_replace(?)'},
$options,
$view_name,
'as select',
join(', ',
map {
sprintf('%s%s',
$_->{'name'},
$_->{'alias'} ? ' as ' . $_->{'alias'} : ''
)
}
@{ $select_sql->{'columns'} || [] }
),
' from ',
join(', ',
map {
sprintf('%s%s',
$_->{'name'},
$_->{'alias'} ? ' as ' . $_->{'alias'} : ''
)
}
@{ $select_sql->{'from'}{'tables'} || [] }
),
$select_sql->{'from'}{'where'}
? 'where ' . $select_sql->{'from'}{'where'}
: ''
,
);
# Hack to strip database from function calls in SQL
$sql =~ s#`\w+`\.(`\w+`\()##g;
$views{ $view_name }{'order'} = ++$view_order;
$views{ $view_name }{'name'} = $view_name;
$views{ $view_name }{'sql'} = $sql;
$views{ $view_name }{'options'} = $options;
$views{ $view_name }{'select'} = $item{'view_select_statement'};
}
create_view_option : view_algorithm | view_sql_security | view_definer
or_replace : /or replace/i
view_algorithm : /algorithm/i /=/ WORD
{
$return = "$item[1]=$item[3]";
}
view_definer : /definer=\S+/i
view_sql_security : /sql \s+ security \s+ (definer|invoker)/ixs
not_delimiter : /.*?(?=$delimiter)/is
view_select_statement : /[(]?/ /select/i view_column_def /from/i view_table_def /[)]?/
{
$return = {
columns => $item{'view_column_def'},
from => $item{'view_table_def'},
};
}
view_column_def : /(.*?)(?=\bfrom\b)/ixs
{
# split on commas not in parens,
# e.g., "concat_ws(\' \', first, last) as first_last"
my @tmp = $1 =~ /((?:[^(,]+|\(.*?\))+)/g;
my @cols;
for my $col ( @tmp ) {
my ( $name, $alias ) = map {
s/^\s+|\s+$//g;
s/[`]//g;
$_
} split /\s+as\s+/i, $col;
push @cols, { name => $name, alias => $alias || '' };
}
$return = \@cols;
}
not_delimiter : /.*?(?=$delimiter)/is
view_table_def : not_delimiter
{
my $clause = $item[1];
my $where = $1 if $clause =~ s/\bwhere \s+ (.*)//ixs;
$clause =~ s/[)]\s*$//;
my @tables;
for my $tbl ( split( /\s*,\s*/, $clause ) ) {
my ( $name, $alias ) = split /\s+as\s+/i, $tbl;
push @tables, { name => $name, alias => $alias || '' };
}
$return = {
tables => \@tables,
where => $where || '',
};
}
view_column_alias : /as/i WORD
{ $return = $item[2] }
create_definition : constraint
| index
| field
| comment
| <error>
comment : /^\s*(?:#|-{2}).*\n/
{
my $comment = $item[1];
$comment =~ s/^\s*(#|--)\s*//;
$comment =~ s/\s*$//;
$return = $comment;
}
comment : m{ / \* (?! \!) .*? \* / }xs
{
my $comment = $item[2];
$comment = substr($comment, 0, -2);
$comment =~ s/^\s*|\s*$//g;
$return = $comment;
}
comment_like_command : m{/\*!(\d+)?}s
comment_end : m{ \* / }xs
field_comment : /^\s*(?:#|-{2}).*\n/
{
my $comment = $item[1];
$comment =~ s/^\s*(#|--)\s*//;
$comment =~ s/\s*$//;
$return = $comment;
}
field_comment2 : /comment/i /'.*?'/
{
my $comment = $item[2];
$comment =~ s/^'//;
$comment =~ s/'$//;
$return = $comment;
}
blank : /\s*/
field : field_comment(s?) field_name data_type field_qualifier(s?) field_comment2(?) reference_definition(?) on_update(?) field_comment(s?)
{
my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] };
if ( my @type_quals = @{ $item{'data_type'}{'qualifiers'} || [] } ) {
$qualifiers{ $_ } = 1 for @type_quals;
}
my $null = defined $qualifiers{'not_null'}
? $qualifiers{'not_null'} : 1;
delete $qualifiers{'not_null'};
my @comments = ( @{ $item[1] }, @{ $item[5] }, @{ $item[8] } );
$return = {
supertype => 'field',
name => $item{'field_name'},
data_type => $item{'data_type'}{'type'},
size => $item{'data_type'}{'size'},
list => $item{'data_type'}{'list'},
null => $null,
constraints => $item{'reference_definition(?)'},
comments => [ @comments ],
%qualifiers,
}
}
| <error>
field_qualifier : not_null
{
$return = {
null => $item{'not_null'},
}
}
field_qualifier : default_val
{
$return = {
default => $item{'default_val'},
}
}
field_qualifier : auto_inc
{
$return = {
is_auto_inc => $item{'auto_inc'},
}
}
field_qualifier : primary_key
{
$return = {
is_primary_key => $item{'primary_key'},
}
}
field_qualifier : unsigned
{
$return = {
is_unsigned => $item{'unsigned'},
}
}
field_qualifier : /character set/i WORD
{
$return = {
'CHARACTER SET' => $item[2],
}
}
field_qualifier : /collate/i WORD
{
$return = {
COLLATE => $item[2],
}
}
field_qualifier : /on update/i CURRENT_TIMESTAMP
{
$return = {
'ON UPDATE' => $item[2],
}
}
field_qualifier : /unique/i KEY(?)
{
$return = {
is_unique => 1,
}
}
field_qualifier : KEY
{
$return = {
has_index => 1,
}
}
reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete(?) on_update(?)
{
$return = {
type => 'foreign_key',
reference_table => $item[2],
reference_fields => $item[3][0],
match_type => $item[4][0],
on_delete => $item[5][0],
on_update => $item[6][0],
}
}
match_type : /match full/i { 'full' }
|
/match partial/i { 'partial' }
on_delete : /on delete/i reference_option
{ $item[2] }
on_update :
/on update/i CURRENT_TIMESTAMP
{ $item[2] }
|
/on update/i reference_option
{ $item[2] }
reference_option: /restrict/i |
/cascade/i |
/set null/i |
/no action/i |
/set default/i
{ $item[1] }
index : normal_index
| fulltext_index
| spatial_index
| <error>
table_name : NAME
field_name : NAME
index_name : NAME
data_type : WORD parens_value_list(s?) type_qualifier(s?)
{
my $type = $item[1];
my $size; # field size, applicable only to non-set fields
my $list; # set list, applicable only to sets (duh)
if ( uc($type) =~ /^(SET|ENUM)$/ ) {
$size = undef;
$list = $item[2][0];
}
else {
$size = $item[2][0];
$list = [];
}
$return = {
type => $type,
size => $size,
list => $list,
qualifiers => $item[3],
}
}
parens_field_list : '(' field_name(s /,/) ')'
{ $item[2] }
parens_value_list : '(' VALUE(s /,/) ')'
{ $item[2] }
type_qualifier : /(BINARY|UNSIGNED|ZEROFILL)/i
{ lc $item[1] }
field_type : WORD
create_index : /create/i /index/i
not_null : /not/i /null/i
{ $return = 0 }
|
/null/i
{ $return = 1 }
unsigned : /unsigned/i { $return = 0 }
default_val :
/default/i CURRENT_TIMESTAMP
{
$return = $item[2];
}
|
/default/i string
{
$item[2] =~ s/^\s*'|'\s*$//g or $item[2] =~ s/^\s*"|"\s*$//g;
$return = $item[2];
}
|
/default/i bit
{
$item[2] =~ s/b['"]([01]+)['"]/$1/g;
$return = $item[2];
}
|
/default/i /[\w\d:.-]+/
{
$return = $item[2];
}
auto_inc : /auto_increment/i { 1 }
primary_key : /primary/i /key/i { 1 }
constraint : primary_key_def
| unique_key_def
| foreign_key_def
| <error>
foreign_key_def : foreign_key_def_begin parens_field_list reference_definition
{
$return = {
supertype => 'constraint',
type => 'foreign_key',
name => $item[1],
fields => $item[2],
%{ $item{'reference_definition'} },
}
}
foreign_key_def_begin : /constraint/i /foreign key/i WORD
{ $return = $item[3] }
|
/constraint/i NAME /foreign key/i
{ $return = $item[2] }
|
/constraint/i /foreign key/i
{ $return = '' }
|
/foreign key/i WORD
{ $return = $item[2] }
|
/foreign key/i
{ $return = '' }
primary_key_def : primary_key index_type(?) '(' name_with_opt_paren(s /,/) ')' index_type(?)
{
$return = {
supertype => 'constraint',
type => 'primary_key',
fields => $item[4],
options => $item[2][0] || $item[6][0],
};
}
# In theory, and according to the doc, names should not be allowed here, but
# MySQL accept (and ignores) them, so we are not going to be less :)
| primary_key index_name_not_using(?) '(' name_with_opt_paren(s /,/) ')' index_type(?)
{
$return = {
supertype => 'constraint',
type => 'primary_key',
fields => $item[4],
options => $item[6][0],
};
}
unique_key_def : UNIQUE KEY(?) index_name_not_using(?) index_type(?) '(' name_with_opt_paren(s /,/) ')' index_type(?)
{
$return = {
supertype => 'constraint',
name => $item[3][0],
type => 'unique',
fields => $item[6],
options => $item[4][0] || $item[8][0],
}
}
normal_index : KEY index_name_not_using(?) index_type(?) '(' name_with_opt_paren(s /,/) ')' index_type(?)
{
$return = {
supertype => 'index',
type => 'normal',
name => $item[2][0],
fields => $item[5],
options => $item[3][0] || $item[7][0],
}
}
index_name_not_using : QUOTED_NAME
| /(\b(?!using)\w+\b)/ { $return = ($1 =~ /^using/i) ? undef : $1 }
index_type : /using (btree|hash|rtree)/i { $return = uc $1 }
fulltext_index : /fulltext/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
{
$return = {
supertype => 'index',
type => 'fulltext',
name => $item{'index_name(?)'}[0],
fields => $item[5],
}
}
spatial_index : /spatial/i KEY(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
{
$return = {
supertype => 'index',
type => 'spatial',
name => $item{'index_name(?)'}[0],
fields => $item[5],
}
}
name_with_opt_paren : NAME parens_value_list(s?)
{ $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] }
UNIQUE : /unique/i
KEY : /key/i | /index/i
table_option : /comment/i /=/ /'.*?'/
{
my $comment = $item[3];
$comment =~ s/^'//;
$comment =~ s/'$//;
$return = { comment => $comment };
}
| /(default )?(charset|character set)/i /\s*=?\s*/ WORD
{
$return = { 'CHARACTER SET' => $item[3] };
}
| /collate/i WORD
{
$return = { 'COLLATE' => $item[2] }
}
| /union/i /\s*=\s*/ '(' table_name(s /,/) ')'
{
$return = { $item[1] => $item[4] };
}
| WORD /\s*=\s*/ MAYBE_QUOTED_WORD
{
$return = { $item[1] => $item[3] };
}
MAYBE_QUOTED_WORD: /\w+/
| /'(\w+)'/
{ $return = $1 }
| /"(\w+)"/
{ $return = $1 }
default : /default/i
ADD : /add/i
ALTER : /alter/i
CREATE : /create/i
TEMPORARY : /temporary/i
TABLE : /table/i
WORD : /\w+/
DIGITS : /\d+/
COMMA : ','
BACKTICK : '`'
DOUBLE_QUOTE: '"'
QUOTED_NAME : BACKTICK /[^`]+/ BACKTICK
{ $item[2] }
| DOUBLE_QUOTE /[^"]+/ DOUBLE_QUOTE
{ $item[2] }
NAME: QUOTED_NAME
| /\w+/
VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
{ $item[1] }
| /'.*?'/
{
# remove leading/trailing quotes
my $val = $item[1];
$val =~ s/^['"]|['"]$//g;
$return = $val;
}
| /NULL/
{ 'NULL' }
# always a scalar-ref, so that it is treated as a function and not quoted by consumers
CURRENT_TIMESTAMP :
/current_timestamp(\(\))?/i { \'CURRENT_TIMESTAMP' }
| /now\(\)/i { \'CURRENT_TIMESTAMP' }
END_OF_GRAMMAR
sub parse {
my ( $translator, $data ) = @_;
# Enable warnings within the Parse::RecDescent module.
# Make sure the parser dies when it encounters an error
local $::RD_ERRORS = 1 unless defined $::RD_ERRORS;
# Enable warnings. This will warn on unused rules &c.
local $::RD_WARN = 1 unless defined $::RD_WARN;
# Give out hints to help fix problems.
local $::RD_HINT = 1 unless defined $::RD_HINT;
local $::RD_TRACE = $translator->trace ? 1 : undef;
local $DEBUG = $translator->debug;
my $parser = ddl_parser_instance('MySQL');
# Preprocess for MySQL-specific and not-before-version comments
# from mysqldump
my $parser_version = parse_mysql_version(
$translator->parser_args->{mysql_parser_version}, 'mysql'
) || DEFAULT_PARSER_VERSION;
while ( $data =~
s#/\*!(\d{5})?(.*?)\*/#($1 && $1 > $parser_version ? '' : $2)#es
) {
# do nothing; is there a better way to write this? -- ky
}
my $result = $parser->startrule($data);
return $translator->error( "Parse failed." ) unless defined $result;
warn "Parse result:".Dumper( $result ) if $DEBUG;
my $schema = $translator->schema;
$schema->name($result->{'database_name'}) if $result->{'database_name'};
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->{'table_name'},
) or die $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->{'null'},
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 collate ],
'character set', 'on update' ) {
if ( my $val = $fdata->{ $qual } || $fdata->{ uc $qual } ) {
next if ref $val eq 'ARRAY' && !@$val;
$field->extra( $qual, $val );
}
}
if ( $fdata->{'has_index'} ) {
$table->add_index(
name => '',
type => 'NORMAL',
fields => $fdata->{'name'},
) or die $table->error;
}
if ( $fdata->{'is_unique'} ) {
$table->add_constraint(
name => '',
type => 'UNIQUE',
fields => $fdata->{'name'},
) or die $table->error;
}
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;
}
if ( my @options = @{ $tdata->{'table_options'} || [] } ) {
my @cleaned_options;
my @ignore_opts = $translator->parser_args->{'ignore_opts'}
? split( /,/, $translator->parser_args->{'ignore_opts'} )
: ();
if (@ignore_opts) {
my $ignores = { map { $_ => 1 } @ignore_opts };
foreach my $option (@options) {
# make sure the option isn't in ignore list
my ($option_key) = keys %$option;
if ( !exists $ignores->{$option_key} ) {
push @cleaned_options, $option;
}
}
} else {
@cleaned_options = @options;
}
$table->options( \@cleaned_options ) 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 $table->error;
}
# After the constrains and PK/idxs have been created,
# we normalize fields
normalize_field($_) for $table->get_fields;
}
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 ( @views ) {
my $view = $result->{'views'}{ $view_name };
my @flds = map { $_->{'alias'} || $_->{'name'} }
@{ $view->{'select'}{'columns'} || [] };
my @from = map { $_->{'alias'} || $_->{'name'} }
@{ $view->{'from'}{'tables'} || [] };
$schema->add_view(
name => $view_name,
sql => $view->{'sql'},
order => $view->{'order'},
fields => \@flds,
tables => \@from,
options => $view->{'options'}
);
}
return 1;
}
# Takes a field, and returns
sub normalize_field {
my ($field) = @_;
my ($size, $type, $list, $unsigned, $changed);
$size = $field->size;
$type = $field->data_type;
$list = $field->extra->{list} || [];
$unsigned = defined($field->extra->{unsigned});
if ( !ref $size && $size eq 0 ) {
if ( lc $type eq 'tinyint' ) {
$changed = $size != 4 - $unsigned;
$size = 4 - $unsigned;
}
elsif ( lc $type eq 'smallint' ) {
$changed = $size != 6 - $unsigned;
$size = 6 - $unsigned;
}
elsif ( lc $type eq 'mediumint' ) {
$changed = $size != 9 - $unsigned;
$size = 9 - $unsigned;
}
elsif ( $type =~ /^int(eger)?$/i ) {
$changed = $size != 11 - $unsigned || $type ne 'int';
$type = 'int';
$size = 11 - $unsigned;
}
elsif ( lc $type eq 'bigint' ) {
$changed = $size != 20;
$size = 20;
}
elsif ( lc $type =~ /(float|double|decimal|numeric|real|fixed|dec)/ ) {
my $old_size = (ref $size || '') eq 'ARRAY' ? $size : [];
$changed = @$old_size != 2
|| $old_size->[0] != 8
|| $old_size->[1] != 2;
$size = [8,2];
}
}
if ( $type =~ /^tiny(text|blob)$/i ) {
$changed = $size != 255;
$size = 255;
}
elsif ( $type =~ /^(blob|text)$/i ) {
$changed = $size != 65_535;
$size = 65_535;
}
elsif ( $type =~ /^medium(blob|text)$/i ) {
$changed = $size != 16_777_215;
$size = 16_777_215;
}
elsif ( $type =~ /^long(blob|text)$/i ) {
$changed = $size != 4_294_967_295;
$size = 4_294_967_295;
}
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;
}
$changed = 1;
$size = $longest if $longest;
}
if ( $changed ) {
# We only want to clone the field, not *everything*
{
local $field->{table} = undef;
$field->parsed_field( dclone( $field ) );
$field->parsed_field->{table} = $field->table;
}
$field->size( $size );
$field->data_type( $type );
$field->sql_data_type( $type_mapping{ lc $type } )
if exists $type_mapping{ lc $type };
$field->extra->{list} = $list if @$list;
}
}
1;
# -------------------------------------------------------------------
# Where man is not nature is barren.
# William Blake
# -------------------------------------------------------------------
=pod
=head1 AUTHOR
Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>,
Chris Mungall E<lt>cjm@fruitfly.orgE<gt>.
=head1 SEE ALSO
Parse::RecDescent, SQL::Translator::Schema.
=cut