X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FSQL%2FTranslator%2FParser%2FMySQL.pm;h=5a70f409440003ea6e8b367d1e7b8216d927a817;hb=57059659167a766beeb9d5c4fd5fd29c8eebc3b7;hp=c280ab5fc6bc53ee2f3413fe1e6d2ac1cda496c5;hpb=2e8dfb7635467806b90243dbb73d6b873e3175a5;p=dbsrgits%2FSQL-Translator.git diff --git a/lib/SQL/Translator/Parser/MySQL.pm b/lib/SQL/Translator/Parser/MySQL.pm index c280ab5..5a70f40 100644 --- a/lib/SQL/Translator/Parser/MySQL.pm +++ b/lib/SQL/Translator/Parser/MySQL.pm @@ -1,11 +1,9 @@ package SQL::Translator::Parser::MySQL; # ------------------------------------------------------------------- -# $Id: MySQL.pm,v 1.38 2003-08-26 04:01:36 kycl4rk Exp $ +# $Id: MySQL.pm,v 1.51 2005-07-11 21:14:22 duality72 Exp $ # ------------------------------------------------------------------- -# Copyright (C) 2003 Ken Y. Clark , -# darren chamberlain , -# Chris Mungall +# Copyright (C) 2002-4 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 @@ -119,11 +117,24 @@ Here's the word from the MySQL site 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 + =cut use strict; use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ]; -$VERSION = sprintf "%d.%02d", q$Revision: 1.38 $ =~ /(\d+)\.(\d+)/; +$VERSION = sprintf "%d.%02d", q$Revision: 1.51 $ =~ /(\d+)\.(\d+)/; $DEBUG = 0 unless defined $DEBUG; use Data::Dumper; @@ -141,7 +152,7 @@ $::RD_HINT = 1; # Give out hints to help fix problems. $GRAMMAR = q! { - my ( %tables, $table_order, @table_comments ); + my ( $database_name, %tables, $table_order, @table_comments ); } # @@ -150,7 +161,9 @@ $GRAMMAR = q! # won't cause the failure needed to know that the parse, as a whole, # failed. -ky # -startrule : statement(s) eofile { \%tables } +startrule : statement(s) eofile { + { tables => \%tables, database_name => $database_name } +} eofile : /^\Z/ @@ -159,10 +172,15 @@ statement : comment | set | drop | create + | alter + | insert | use : /use/i WORD ';' - { @table_comments = () } + { + $database_name = $item[2]; + @table_comments = (); + } set : /set/i /[^;]+/ ';' { @table_comments = () } @@ -172,10 +190,26 @@ drop : /drop/i TABLE /[^;]+/ ';' drop : /drop/i WORD(s) ';' { @table_comments = () } +insert : /insert/i /[^;]+/ ';' + +alter : ALTER TABLE table_name alter_specification(s /,/) ';' + { + 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 ';' { @table_comments = () } -create : CREATE TEMPORARY(?) TABLE opt_if_not_exists(?) table_name '(' create_definition(s /,/) ')' table_option(s?) ';' +create : CREATE TEMPORARY(?) TABLE opt_if_not_exists(?) table_name '(' create_definition(s /,/) /(,\s*)?\)/ table_option(s?) ';' { my $table_name = $item{'table_name'}; $tables{ $table_name }{'order'} = ++$table_order; @@ -211,9 +245,15 @@ create : CREATE TEMPORARY(?) TABLE opt_if_not_exists(?) table_name '(' create_de } } - for my $opt ( @{ $item{'table_option(s?)'} } ) { - if ( my ( $key, $val ) = each %$opt ) { - $tables{ $table_name }{'table_options'}{ $key } = $val; + 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; + } } } @@ -237,28 +277,44 @@ create : CREATE UNIQUE(?) /(index|key)/i index_name /on/i table_name '(' field_n create_definition : constraint | index | field + | comment | comment : /^\s*(?:#|-{2}).*\n/ { my $comment = $item[1]; - $comment =~ s/^\s*(#|-{2})\s*//; + $comment =~ s/^\s*(#|--)\s*//; $comment =~ s/\s*$//; $return = $comment; - push @table_comments, $comment; + } + +comment : /\/\*/ /[^\*]+/ /\*\// ';' + { + my $comment = $item[2]; + $comment =~ s/^\s*|\s*$//g; + $return = $comment; } field_comment : /^\s*(?:#|-{2}).*\n/ { my $comment = $item[1]; - $comment =~ s/^\s*(#|-{2})\s*//; + $comment =~ s/^\s*(#|--)\s*//; $comment =~ s/\s*$//; $return = $comment; } + +field_comment2 : /comment/i /'.*?'/ + { + my $comment = $item[2]; + $comment =~ s/^'//; + $comment =~ s/'$//; + $return = $comment; + } + blank : /\s*/ -field : field_comment(s?) field_name data_type field_qualifier(s?) reference_definition(?) field_comment(s?) +field : field_comment(s?) field_name data_type field_qualifier(s?) field_comment2(?) reference_definition(?) on_update(?) field_comment(s?) { my %qualifiers = map { %$_ } @{ $item{'field_qualifier(s?)'} || [] }; if ( my @type_quals = @{ $item{'data_type'}{'qualifiers'} || [] } ) { @@ -269,7 +325,7 @@ field : field_comment(s?) field_name data_type field_qualifier(s?) reference_def ? $qualifiers{'not_null'} : 1; delete $qualifiers{'not_null'}; - my @comments = ( @{ $item[1] }, @{ $item[6] } ); + my @comments = ( @{ $item[1] }, @{ $item[5] }, @{ $item[8] } ); $return = { supertype => 'field', @@ -323,30 +379,48 @@ field_qualifier : unsigned field_qualifier : /character set/i WORD { $return = { - character_set => $item[2], + 'CHARACTER SET' => $item[2], } } -reference_definition : /references/i table_name parens_field_list(?) match_type(?) on_delete_do(?) on_update_do(?) +field_qualifier : /collate/i WORD + { + $return = { + COLLATE => $item[2], + } + } + +field_qualifier : /on update/i CURRENT_TIMESTAMP + { + $return = { + 'ON UPDATE' => $item[2], + } + } + +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_do => $item[5][0], - on_update_do => $item[6][0], + on_delete => $item[5][0], + on_update => $item[6][0], } } -match_type : /match full/i { 'match_full' } +match_type : /match full/i { 'full' } | - /match partial/i { 'match_partial' } + /match partial/i { 'partial' } -on_delete_do : /on delete/i reference_option +on_delete : /on delete/i reference_option { $item[2] } -on_update_do : /on update/i reference_option +on_update : + /on update/i 'CURRENT_TIMESTAMP' + { $item[2] } + | + /on update/i reference_option { $item[2] } reference_option: /restrict/i | @@ -364,7 +438,7 @@ table_name : NAME field_name : NAME -index_name : WORD +index_name : NAME data_type : WORD parens_value_list(s?) type_qualifier(s?) { @@ -391,7 +465,7 @@ data_type : WORD parens_value_list(s?) type_qualifier(s?) elsif ( lc $type eq 'mediumint' ) { $size = 9; } - elsif ( $type =~ /^int(eger)?$/ ) { + elsif ( $type =~ /^int(eger)?$/i ) { $type = 'int'; $size = 11; } @@ -439,13 +513,29 @@ field_type : WORD create_index : /create/i /index/i -not_null : /not/i /null/i { $return = 0 } +not_null : /not/i /null/i + { $return = 0 } + | + /null/i + { $return = 1 } unsigned : /unsigned/i { $return = 0 } -default_val : /default/i /(?:')?[\w\d:.-]*(?:')?/ - { - $item[2] =~ s/'//g; +#default_val : /default/i /(?:')?[\s\w\d:.-]*(?:')?/ +# { +# $item[2] =~ s/'//g; +# $return = $item[2]; +# } + +default_val : + /default/i 'CURRENT_TIMESTAMP' + { + $return = $item[2]; + } + | + /default/i /'(?:.*?\\')*.*?'|(?:')?[\w\d:.-]*(?:')?/ + { + $item[2] =~ s/^\s*'|'\s*$//g; $return = $item[2]; } @@ -458,18 +548,31 @@ constraint : primary_key_def | foreign_key_def | -foreign_key_def : opt_constraint(?) /foreign key/i WORD(?) parens_field_list reference_definition +foreign_key_def : foreign_key_def_begin parens_field_list reference_definition { $return = { supertype => 'constraint', type => 'foreign_key', - name => $item[3][0], - fields => $item[4], + name => $item[1], + fields => $item[2], %{ $item{'reference_definition'} }, } } -opt_constraint : /constraint/i WORD +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_name(?) '(' name_with_opt_paren(s /,/) ')' { @@ -518,10 +621,27 @@ UNIQUE : /unique/i { 1 } KEY : /key/i | /index/i -table_option : /[^\s;]*/ +table_option : WORD /\s*=\s*/ WORD + { + $return = { $item[1] => $item[3] }; + } + | /comment/i /=/ /'.*?'/ + { + my $comment = $item[3]; + $comment =~ s/^'//; + $comment =~ s/'$//; + $return = { comment => $comment }; + } + | /(default )?(charset|character set)/i /\s*=\s*/ WORD { - $return = { split /=/, $item[1] } + $return = { 'CHARACTER SET' => $item[3] }; } + +default : /default/i + +ADD : /add/i + +ALTER : /alter/i CREATE : /create/i @@ -552,6 +672,10 @@ VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/ | /NULL/ { 'NULL' } +CURRENT_TIMESTAMP : /current_timestamp(\(\))?/i + | /now\(\)/i + { 'CURRENT_TIMESTAMP' } + !; # ------------------------------------------------------------------- @@ -569,15 +693,19 @@ sub parse { my $result = $parser->startrule($data); return $translator->error( "Parse failed." ) unless defined $result; - warn Dumper( $result ) if $DEBUG; + warn "Parse result:".Dumper( $result ) if $DEBUG; my $schema = $translator->schema; + $schema->name($result->{'database_name'}) if $result->{'database_name'}; + my @tables = sort { - $result->{ $a }->{'order'} <=> $result->{ $b }->{'order'} - } keys %{ $result }; + $result->{'tables'}{ $a }{'order'} + <=> + $result->{'tables'}{ $b }{'order'} + } keys %{ $result->{'tables'} }; for my $table_name ( @tables ) { - my $tdata = $result->{ $table_name }; + my $tdata = $result->{tables}{ $table_name }; my $table = $schema->add_table( name => $tdata->{'table_name'}, ) or die $schema->error; @@ -604,7 +732,8 @@ sub parse { $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; - for my $qual ( qw[ binary unsigned zerofill list ] ) { + 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 ); @@ -635,6 +764,10 @@ sub parse { ) or die $table->error; } + if ( my @options = @{ $tdata->{'table_options'} || [] } ) { + $table->options( \@options ) or die $table->error; + } + for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { my $constraint = $table->add_constraint( name => $cdata->{'name'}, @@ -643,8 +776,8 @@ sub parse { reference_table => $cdata->{'reference_table'}, reference_fields => $cdata->{'reference_fields'}, match_type => $cdata->{'match_type'} || '', - on_delete => $cdata->{'on_delete_do'}, - on_update => $cdata->{'on_update_do'}, + on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, + on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, ) or die $table->error; } }