X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FSQL%2FTranslator%2FProducer%2FOracle.pm;h=ce54cdb51b2ffddce869859836c8ff76c8f27edf;hb=be42bce8a53907c863eab4daaec7adca2d15fe54;hp=691a053b3d5a5de4bdcf6d99e52b155063319020;hpb=57f772855802526f7a135539ee27b044e5af9182;p=dbsrgits%2FSQL-Translator.git diff --git a/lib/SQL/Translator/Producer/Oracle.pm b/lib/SQL/Translator/Producer/Oracle.pm index 691a053..ce54cdb5 100644 --- a/lib/SQL/Translator/Producer/Oracle.pm +++ b/lib/SQL/Translator/Producer/Oracle.pm @@ -1,11 +1,9 @@ package SQL::Translator::Producer::Oracle; # ------------------------------------------------------------------- -# $Id: Oracle.pm,v 1.11 2003-06-09 01:58:23 kycl4rk Exp $ +# $Id: Oracle.pm,v 1.31 2004-06-04 19:39:48 kycl4rk 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 @@ -22,9 +20,26 @@ package SQL::Translator::Producer::Oracle; # 02111-1307 USA # ------------------------------------------------------------------- +=head1 NAME + +SQL::Translator::Producer::Oracle - Oracle SQL producer + +=head1 SYNOPSIS + + use SQL::Translator; + + my $t = SQL::Translator->new( parser => '...', producer => 'Oracle' ); + print $translator->translate( $file ); + +=head1 DESCRIPTION + +Creates an SQL DDL suitable for Oracle. + +=cut + use strict; use vars qw[ $VERSION $DEBUG $WARN ]; -$VERSION = sprintf "%d.%02d", q$Revision: 1.11 $ =~ /(\d+)\.(\d+)/; +$VERSION = sprintf "%d.%02d", q$Revision: 1.31 $ =~ /(\d+)\.(\d+)/; $DEBUG = 0 unless defined $DEBUG; use SQL::Translator::Schema::Constants; @@ -39,19 +54,20 @@ my %translate = ( decimal => 'number', float => 'number', int => 'number', + integer => 'number', mediumint => 'number', smallint => 'number', tinyint => 'number', char => 'char', varchar => 'varchar2', - tinyblob => 'CLOB', - blob => 'CLOB', - mediumblob => 'CLOB', - longblob => 'CLOB', - longtext => 'long', - mediumtext => 'long', - text => 'long', - tinytext => 'long', + tinyblob => 'blob', + blob => 'blob', + mediumblob => 'blob', + longblob => 'blob', + tinytext => 'varchar2', + text => 'clob', + longtext => 'clob', + mediumtext => 'clob', enum => 'varchar2', set => 'varchar2', date => 'date', @@ -85,6 +101,13 @@ my %translate = ( macaddr => 'varchar2', bit => 'number', 'bit varying' => 'number', + + # + # Oracle types + # + number => 'number', + varchar2 => 'varchar2', + long => 'clob', ); # @@ -125,20 +148,23 @@ my %truncated; # ------------------------------------------------------------------- sub produce { - my ( $translator, $data ) = @_; - $DEBUG = $translator->debug; - $WARN = $translator->show_warnings; - my $no_comments = $translator->no_comments; - my $add_drop_table = $translator->add_drop_table; - my $schema = $translator->schema; + my $translator = shift; + $DEBUG = $translator->debug; + $WARN = $translator->show_warnings; + my $no_comments = $translator->no_comments; + my $add_drop_table = $translator->add_drop_table; + my $schema = $translator->schema; my $output; $output .= header_comment unless ($no_comments); if ( $translator->parser_type =~ /mysql/i ) { $output .= - "-- We assume that default NLS_DATE_FORMAT has been changed\n". - "-- but we set it here anyway to be self-consistent.\n". + "-- We assume that default NLS_DATE_FORMAT has been changed\n". + "-- but we set it here anyway to be self-consistent.\n" + unless $no_comments; + + $output .= "ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';\n\n"; } @@ -147,7 +173,6 @@ sub produce { # for my $table ( $schema->get_tables ) { my $table_name = $table->name or next; - warn "table name = '$table_name'\n"; $table_name = mk_name( $table_name, '', undef, 1 ); my $table_name_ur = unreserve($table_name) or next; @@ -155,7 +180,7 @@ sub produce { push @comments, "--\n-- Table: $table_name_ur\n--" unless $no_comments; - my %field_name_scope; + my ( %field_name_scope, @field_comments ); for my $field ( $table->get_fields ) { # # Field name @@ -174,10 +199,11 @@ sub produce { my @size = $field->size; my %extra = $field->extra; my $list = $extra{'list'} || []; - my $commalist = join ",", @$list; + # \todo deal with embedded quotes + my $commalist = join( ', ', map { qq['$_'] } @$list ); if ( $data_type eq 'enum' ) { - $check = "CHECK ($field_name IN ($commalist))"; + $check = "CHECK ($field_name_ur IN ($commalist))"; $data_type = 'varchar2'; } elsif ( $data_type eq 'set' ) { @@ -188,31 +214,80 @@ sub produce { else { $data_type = defined $translate{ $data_type } ? $translate{ $data_type } : - die "Unknown datatype: $data_type\n"; + $data_type; + $data_type ||= 'varchar2'; + } + + # + # Fixes ORA-02329: column of datatype LOB cannot be + # unique or a primary key + # + if ( $data_type eq 'clob' && $field->is_primary_key ) { + $data_type = 'varchar2'; + $size[0] = 4000; + warn "CLOB cannot be a primary key, changing to VARCHAR2\n" + if $WARN; + } + + # + # Fixes ORA-00907: missing right parenthesis + # + if ( $data_type =~ /(date|clob)/i ) { + undef @size; } $field_def .= " $data_type"; if ( defined $size[0] && $size[0] > 0 ) { $field_def .= '(' . join( ', ', @size ) . ')'; } - + # # Default value # my $default = $field->default_value; if ( defined $default ) { - $field_def .= sprintf( - ' DEFAULT %s', - $default =~ m/null/i ? 'NULL' : "'$default'" - ); + # + # Wherein we try to catch a string being used as + # a default value for a numerical field. If "true/false," + # then sub "1/0," otherwise just test the truthity of the + # argument and use that (naive?). + # + if ( + $data_type =~ /^number$/i && + $default !~ /^\d+$/ && + $default !~ m/null/i + ) { + if ( $default =~ /^true$/i ) { + $default = "'1'"; + } + elsif ( $default =~ /^false$/i ) { + $default = "'0'"; + } + else { + $default = $default ? "'1'" : "'0'"; + } + } + elsif ( + $data_type =~ /date/ && ( + $default eq 'current_timestamp' + || + $default eq 'now()' + ) + ) { + $default = 'SYSDATE'; + } + else { + $default = $default =~ m/null/i ? 'NULL' : "'$default'" + } + + $field_def .= " DEFAULT $default", } # # Not null constraint # unless ( $field->is_nullable ) { - my $constraint_name = mk_name($field_name_ur, 'nn'); - $field_def .= ' CONSTRAINT ' . $constraint_name . ' NOT NULL'; + $field_def .= ' NOT NULL'; } $field_def .= " $check" if $check; @@ -228,7 +303,7 @@ sub produce { push @trigger_defs, "CREATE SEQUENCE $seq_name;\n" . "CREATE OR REPLACE TRIGGER $trigger_name\n" . - "BEFORE INSERT ON $table_name\n" . + "BEFORE INSERT ON $table_name_ur\n" . "FOR EACH ROW WHEN (\n" . " new.$field_name_ur IS NULL". " OR new.$field_name_ur = 0\n". @@ -247,25 +322,53 @@ sub produce { push @trigger_defs, "CREATE OR REPLACE TRIGGER $trig_name\n". "BEFORE INSERT OR UPDATE ON $table_name_ur\n". - "FOR EACH ROW WHEN (new.$field_name_ur} IS NULL)\n". + "FOR EACH ROW WHEN (new.$field_name_ur IS NULL)\n". "BEGIN \n". - " SELECT sysdate INTO :new.$field_name_ur} FROM dual;\n". + " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n". "END;\n/"; } push @field_defs, $field_def; + + if ( my $comment = $field->comments ) { + push @field_comments, + "COMMENT ON COLUMN $table_name.$field_name_ur is\n '". + $comment."';" unless $no_comments; + } + } + + # + # Table options + # + my @table_options; + for my $opt ( $table->options ) { + if ( ref $opt eq 'HASH' ) { + my ( $key, $value ) = each %$opt; + if ( ref $value eq 'ARRAY' ) { + push @table_options, "$key\n(\n". join ("\n", + map { " $_->[0]\t$_->[1]" } + map { [ each %$_ ] } + @$value + )."\n)"; + } + elsif ( !defined $value ) { + push @table_options, $key; + } + else { + push @table_options, "$key $value"; + } + } } # # Table constraints # - my $constraint_name_default; for my $c ( $table->get_constraints ) { my $name = $c->name || ''; my @fields = map { unreserve( $_, $table_name ) } $c->fields; my @rfields = map { unreserve( $_, $table_name ) } $c->reference_fields; - next unless @fields; + next if !@fields && $c->type ne CHECK_C; if ( $c->type eq PRIMARY_KEY ) { $name ||= mk_name( $table_name, 'pk' ); @@ -273,14 +376,37 @@ sub produce { '(' . join( ', ', @fields ) . ')'; } elsif ( $c->type eq UNIQUE ) { - $name ||= mk_name( $table_name, ++$constraint_name_default ); + $name = mk_name( $name || $table_name, 'u' ); + + for my $f ( $c->fields ) { + my $field_def = $table->get_field( $f ) or next; + my $dtype = $translate{ $field_def->data_type } or next; + if ( $WARN && $dtype =~ /clob/i ) { + warn "Oracle will not allow UNIQUE constraints on " . + "CLOB field '" . $field_def->table->name . '.' . + $field_def->name . ".'\n" + } + } + push @constraint_defs, "CONSTRAINT $name UNIQUE " . '(' . join( ', ', @fields ) . ')'; } + elsif ( $c->type eq CHECK_C ) { + $name = mk_name( $name || $table_name, 'ck' ); + my $expression = $c->expression || ''; + push @constraint_defs, "CONSTRAINT $name CHECK ($expression)"; + } elsif ( $c->type eq FOREIGN_KEY ) { - $name ||= mk_name( $table_name, ++$constraint_name_default ); - my $def = "CONSTRAINT $name FOREIGN KEY REFERENCES ". - $c->reference_table; + $name = mk_name( join('_', $table_name, $c->fields), 'fk' ); + my $def = "CONSTRAINT $name FOREIGN KEY "; + + if ( @fields ) { + $def .= '(' . join( ', ', @fields ) . ')'; + } + + my $ref_table = unreserve($c->reference_table); + + $def .= " REFERENCES $ref_table"; if ( @rfields ) { $def .= ' (' . join( ', ', @rfields ) . ')'; @@ -307,7 +433,6 @@ sub produce { # Index Declarations # my @index_defs = (); - my $idx_name_default; for my $index ( $table->get_indices ) { my $index_name = $index->name || ''; my $index_type = $index->type || NORMAL; @@ -316,22 +441,14 @@ sub produce { next unless @fields; if ( $index_type eq PRIMARY_KEY ) { - $index_name = mk_name( $table_name, 'pk' ); + $index_name = $index_name ? mk_name( $index_name ) + : mk_name( $table_name, 'pk' ); push @field_defs, 'CONSTRAINT '.$index_name.' PRIMARY KEY '. '(' . join( ', ', @fields ) . ')'; } - elsif ( $index_type eq UNIQUE ) { - $index_name = mk_name( - $table_name, $index_name || ++$idx_name_default - ); - push @field_defs, 'CONSTRAINT ' . $index_name . ' UNIQUE ' . - '(' . join( ', ', @fields ) . ')'; - } - elsif ( $index_type eq NORMAL ) { - $index_name = mk_name( - $table_name, $index_name || ++$idx_name_default - ); + $index_name = $index_name ? mk_name( $index_name ) + : mk_name( $table_name, $index_name || 'i' ); push @index_defs, "CREATE INDEX $index_name on $table_name_ur (". join( ', ', @fields ). @@ -345,11 +462,21 @@ sub produce { my $create_statement; $create_statement = "DROP TABLE $table_name_ur;\n" if $add_drop_table; - $create_statement .= - join( ",\n", map { "-- $_" } $table->comments ) . - "CREATE TABLE $table_name_ur (\n" . + + if ( my @table_comments = $table->comments ) { + for my $comment ( @table_comments ) { + next unless $comment; + push @field_comments, "COMMENT ON TABLE $table_name is\n '". + $comment."';" unless $no_comments + ; + } + } + + my $table_options = @table_options + ? "\n".join("\n", @table_options) : ''; + $create_statement .= "CREATE TABLE $table_name_ur (\n" . join( ",\n", map { " $_" } @field_defs, @constraint_defs ) . - "\n);" + "\n)$table_options;" ; $output .= join( "\n\n", @@ -357,6 +484,7 @@ sub produce { $create_statement, @trigger_defs, @index_defs, + @field_comments, '' ); } @@ -381,6 +509,7 @@ sub produce { sub mk_name { my $basename = shift || ''; my $type = shift || ''; + $type = '' if $type =~ /^\d/; my $scope = shift || ''; my $critical = shift || ''; my $basename_orig = $basename; @@ -443,40 +572,19 @@ sub unreserve { # Oscar Wilde # ------------------------------------------------------------------- -=head1 NAME - -SQL::Translator::Producer::Oracle - Oracle SQL producer - -=head1 SYNOPSIS - - use SQL::Translator::Parser::MySQL; - use SQL::Translator::Producer::Oracle; - - my $original_create = ""; # get this from somewhere... - my $translator = SQL::Translator->new; - - $translator->parser("SQL::Translator::Parser::MySQL"); - $translator->producer("SQL::Translator::Producer::Oracle"); - - my $new_create = $translator->translate($original_create); - -=head1 DESCRIPTION - -SQL::Translator::Producer::Oracle takes a parsed data structure, -created by a SQL::Translator::Parser subclass, and turns it into a -create string suitable for use with an Oracle database. +=pod =head1 CREDITS -A hearty "thank-you" to Tim Bunce for much of the logic stolen from -his "mysql2ora" script. +Mad props to Tim Bunce for much of the logic stolen from his "mysql2ora" +script. =head1 AUTHOR -Ken Y. Clark Ekclark@cpan.orgE +Ken Y. Clark Ekclark@cpan.orgE. =head1 SEE ALSO -perl(1). +SQL::Translator, DDL::Oracle, mysql2ora. =cut