package SQL::Translator::Producer::Oracle;
# -------------------------------------------------------------------
-# $Id: Oracle.pm,v 1.2 2002-03-21 18:50:53 dlc Exp $
-# -------------------------------------------------------------------
-# Copyright (C) 2002 Ken Y. Clark <kycl4rk@users.sourceforge.net>,
-# darren chamberlain <darren@cpan.org>
+# 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
# 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.
+
+=head1 producer_args
+
+=over
+
+=item delay_constraints
+
+This option remove the primary key and other key constraints from the
+CREATE TABLE statement and adds ALTER TABLEs at the end with it.
+
+=back
+
+=head1 NOTES
+
+=head2 Autoincremental primary keys
+
+This producer uses sequences and triggers to autoincrement primary key
+columns, if necessary. SQLPlus and DBI expect a slightly different syntax
+of CREATE TRIGGER statement. You might have noticed that this
+producer returns a scalar containing all statements concatenated by
+newlines or an array of single statements depending on the context
+(scalar, array) it has been called in.
+
+SQLPlus expects following trigger syntax:
+
+ CREATE OR REPLACE TRIGGER ai_person_id
+ BEFORE INSERT ON person
+ FOR EACH ROW WHEN (
+ new.id IS NULL OR new.id = 0
+ )
+ BEGIN
+ SELECT sq_person_id.nextval
+ INTO :new.id
+ FROM dual;
+ END;
+ /
+
+Whereas if you want to create the same trigger using L<DBI/do>, you need
+to omit the last slash:
+
+ my $dbh = DBI->connect('dbi:Oracle:mysid', 'scott', 'tiger');
+ $dbh->do("
+ CREATE OR REPLACE TRIGGER ai_person_id
+ BEFORE INSERT ON person
+ FOR EACH ROW WHEN (
+ new.id IS NULL OR new.id = 0
+ )
+ BEGIN
+ SELECT sq_person_id.nextval
+ INTO :new.id
+ FROM dual;
+ END;
+ ");
+
+If you call this producer in array context, we expect you want to process
+the returned array of statements using L<DBI> like
+L<DBIx::Class::Schema/deploy> does.
+
+To get this working we removed the slash in those statements in version
+0.09002 of L<SQL::Translator> when called in array context. In scalar
+context the slash will be still there to ensure compatibility with SQLPlus.
+
+=cut
use strict;
-use vars qw( $VERSION );
-$VERSION = sprintf "%d.%02d", q$Revision: 1.2 $ =~ /(\d+)\.(\d+)/;
+use vars qw[ $VERSION $DEBUG $WARN ];
+$VERSION = '1.60';
+$DEBUG = 0 unless defined $DEBUG;
-my $max_identifier_length = 30;
-my %used_identifiers = ();
+use SQL::Translator::Schema::Constants;
+use SQL::Translator::Utils qw(header_comment);
my %translate = (
+ #
+ # MySQL types
+ #
bigint => 'number',
double => 'number',
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',
datetime => 'date',
time => 'date',
timestamp => 'date',
year => 'date',
-);
-
-# This is for testing only, and probably needs to be removed
-*translate = *produce;
-
-sub produce {
- my ( $translator, $data ) = @_;
- #print "got ", scalar keys %$data, " tables:\n";
- #print join(', ', keys %$data), "\n";
- #print Dumper( $data );
+ #
+ # PostgreSQL types
+ #
+ numeric => 'number',
+ 'double precision' => 'number',
+ serial => 'number',
+ bigserial => 'number',
+ money => 'number',
+ character => 'char',
+ 'character varying' => 'varchar2',
+ bytea => 'BLOB',
+ interval => 'number',
+ boolean => 'number',
+ point => 'number',
+ line => 'number',
+ lseg => 'number',
+ box => 'number',
+ path => 'number',
+ polygon => 'number',
+ circle => 'number',
+ cidr => 'number',
+ inet => 'varchar2',
+ macaddr => 'varchar2',
+ bit => 'number',
+ 'bit varying' => 'number',
#
- # Output
+ # Oracle types
#
- my $output = sprintf "
+ number => 'number',
+ varchar2 => 'varchar2',
+ long => 'clob',
+);
+
+#
+# Oracle reserved words from:
+# http://technet.oracle.com/docs/products/oracle8i/doc_library/\
+# 817_doc/server.817/a85397/ap_keywd.htm
+#
+my %ora_reserved = map { $_, 1 } qw(
+ ACCESS ADD ALL ALTER AND ANY AS ASC AUDIT
+ BETWEEN BY
+ CHAR CHECK CLUSTER COLUMN COMMENT COMPRESS CONNECT CREATE CURRENT
+ DATE DECIMAL DEFAULT DELETE DESC DISTINCT DROP
+ ELSE EXCLUSIVE EXISTS
+ FILE FLOAT FOR FROM
+ GRANT GROUP
+ HAVING
+ IDENTIFIED IMMEDIATE IN INCREMENT INDEX INITIAL INSERT
+ INTEGER INTERSECT INTO IS
+ LEVEL LIKE LOCK LONG
+ MAXEXTENTS MINUS MLSLABEL MODE MODIFY
+ NOAUDIT NOCOMPRESS NOT NOWAIT NULL NUMBER
+ OF OFFLINE ON ONLINE OPTION OR ORDER
+ PCTFREE PRIOR PRIVILEGES PUBLIC
+ RAW RENAME RESOURCE REVOKE ROW ROWID ROWNUM ROWS
+ SELECT SESSION SET SHARE SIZE SMALLINT START
+ SUCCESSFUL SYNONYM SYSDATE
+ TABLE THEN TO TRIGGER
+ UID UNION UNIQUE UPDATE USER
+ VALIDATE VALUES VARCHAR VARCHAR2 VIEW
+ WHENEVER WHERE WITH
+);
+
#
-# Created by %s, version %s
-# Datasource: %s
+# Oracle 8/9 max size of data types from:
+# http://www.ss64.com/orasyntax/datatypes.html
#
+my %max_size = (
+ char => 2000,
+ nchar => 2000,
+ nvarchar2 => 4000,
+ number => [ 38, 127 ],
+ raw => 2000,
+ varchar => 4000, # only synonym for varchar2
+ varchar2 => 4000,
+);
-", __PACKAGE__, $VERSION, $translator->parser_type;
+my $max_id_length = 30;
+my %used_identifiers = ();
+my %global_names;
+my %unreserve;
+my %truncated;
- #
- # Print create for each table
- #
- my ( $index_i, $trigger_i ) = ( 1, 1 );
- for my $table_name ( sort keys %$data ) {
- check_identifier( $table_name );
-
- my ( @comments, @field_decs, @trigger_decs );
-
- my $table = $data->{ $table_name };
- push @comments, "#\n# Table: $table_name\n#";
-
- for my $field (
- map { $_->[1] }
- sort { $a->[0] <=> $b->[0] }
- map { [ $_->{'order'}, $_ ] }
- values %{ $table->{'fields'} }
- ) {
- #
- # Field name
- #
- my $field_str = check_identifier( $field->{'name'} );
-
- #
- # Datatype
- #
- my $data_type = $field->{'data_type'};
- $data_type = defined $translate{ $data_type } ?
- $translate{ $data_type } :
- die "Unknown datatype: $data_type\n";
- $field_str .= ' '.$data_type;
- $field_str .= '('.$field->{'size'}.')' if defined $field->{'size'};
-
- #
- # Default value
- #
- if ( $field->{'default'} ) {
- # next if $field->{'default'} eq 'NULL';
- $field_str .= sprintf(
- ' DEFAULT %s',
- $field->{'default'} =~ m/null/i ? 'NULL' :
- "'".$field->{'default'}."'"
- );
- }
+# -------------------------------------------------------------------
+sub produce {
+ my $translator = shift;
+ $DEBUG = $translator->debug;
+ $WARN = $translator->show_warnings || 0;
+ my $no_comments = $translator->no_comments;
+ my $add_drop_table = $translator->add_drop_table;
+ my $schema = $translator->schema;
+ my $delay_constraints = $translator->producer_args->{delay_constraints};
+ my ($output, $create, @table_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs);
+
+ $create .= header_comment unless ($no_comments);
+
+ if ( $translator->parser_type =~ /mysql/i ) {
+ $create .=
+ "-- 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;
+
+ $create .=
+ "ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';\n\n";
+ }
- #
- # Not null constraint
- #
- unless ( $field->{'null'} ) {
- my $constraint_name = make_identifier($field->{'name'}, '_nn');
- $field_str .= ' CONSTRAINT ' . $constraint_name . ' NOT NULL';
+ for my $table ( $schema->get_tables ) {
+ my ( $table_def, $fk_def, $trigger_def, $index_def, $constraint_def ) = create_table(
+ $table,
+ {
+ add_drop_table => $add_drop_table,
+ show_warnings => $WARN,
+ no_comments => $no_comments,
+ delay_constraints => $delay_constraints,
+ wantarray => wantarray ? 1 : 0,
}
+ );
+ push @table_defs, @$table_def;
+ push @fk_defs, @$fk_def;
+ push @trigger_defs, @$trigger_def;
+ push @index_defs, @$index_def;
+ push @constraint_defs, @$constraint_def;
+ }
- #
- # Auto_increment
- #
- if ( $field->{'is_auto_inc'} ) {
- my $trigger_no = $trigger_i++;
- my $trigger_sequence =
- join( '_', 'seq' , $field->{'name'}, $trigger_no );
- my $trigger_name =
- join( '_', 'autoinc', $field->{'name'}, $trigger_no );
-
- push @trigger_decs,
- 'CREATE SEQUENCE ' . $trigger_sequence . ";" .
- 'CREATE OR REPLACE TRIGGER ' . $trigger_name .
- ' BEFORE INSERT ON ' . $table_name .
- ' FOR EACH ROW WHEN (new.' . $field->{'name'} . ' is null) ' .
- ' BEGIN ' .
- ' SELECT ' . $trigger_sequence . '.nextval ' .
- ' INTO :new.' . $field->{'name'} .
- " FROM dual;\n" .
- ' END ' . $trigger_name . ";/"
- ;
- }
+ my (@view_defs);
+ foreach my $view ( $schema->get_views ) {
+ push @view_defs, create_view($view);
+ }
+
+ if (wantarray) {
+ return defined $create ? $create : (), @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs;
+ }
+ else {
+ $create .= join ('', map { $_ ? "$_;\n\n" : () } @table_defs, @view_defs, @fk_defs, @index_defs, @constraint_defs);
+ # triggers may NOT end with a semicolon
+ $create .= join "\n\n", @trigger_defs;
+ return $create;
+ }
+}
- push @field_decs, $field_str;
+sub create_table {
+ my ($table, $options) = @_;
+ my $table_name = $table->name;
+
+ my $item = '';
+ my $drop;
+ my (@create, @field_defs, @constraint_defs, @fk_defs, @trigger_defs);
+
+ my $table_name_ur = unreserve($table_name) or next;
+
+ push @create, "--\n-- Table: $table_name_ur\n--" unless $options->{no_comments};
+ push @create, qq[DROP TABLE $table_name_ur CASCADE CONSTRAINTS] if $options->{add_drop_table};
+
+ my ( %field_name_scope, @field_comments );
+ for my $field ( $table->get_fields ) {
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($field, $options, \%field_name_scope);
+ push @create, @$field_create if ref $field_create;
+ push @field_defs, @$field_defs if ref $field_defs;
+ push @trigger_defs, @$trigger_defs if ref $trigger_defs;
+ push @field_comments, @$field_comments if ref $field_comments;
}
#
- # Index Declarations
+ # Table options
#
- my @index_decs = ();
- for my $index ( @{ $table->{'indeces'} } ) {
- my $index_name = $index->{'name'} || '';
- my $index_type = $index->{'type'} || 'normal';
- my @fields = @{ $index->{'fields'} } or next;
-
- if ( $index_type eq 'primary_key' ) {
- if ( !$index_name ) {
- $index_name = make_identifier( $table_name, 'i_', '_pk' );
+ 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 ( $index_name !~ m/^i_/ ) {
- $index_name = make_identifier( $table_name, 'i_' );
- }
- elsif ( $index_name !~ m/_pk$/ ) {
- $index_name = make_identifier( $table_name, '_pk' );
+ elsif ( !defined $value ) {
+ push @table_options, $key;
}
else {
- $index_name = make_identifier( $index_name );
+ push @table_options, "$key $value";
}
-
- push @field_decs, 'CONSTRAINT ' . $index_name . ' PRIMARY KEY ' .
- '(' . join( ', ', @fields ) . ')';
}
+ }
- elsif ( $index_type eq 'unique' ) {
- if ( !$index_name ) {
- $index_name = make_identifier( join( '_', @fields ), 'u_' );
- }
- elsif ( $index_name !~ m/^u_/ ) {
- $index_name = make_identifier( $index_name, 'u_' );
- }
- else {
- $index_name = make_identifier( $index_name );
+ #
+ # Table constraints
+ #
+ 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 if !@fields && $c->type ne CHECK_C;
+
+ if ( $c->type eq PRIMARY_KEY ) {
+ # create a name if delay_constraints
+ $name ||= mk_name( $table_name, 'pk' )
+ if $options->{delay_constraints};
+ push @constraint_defs, ($name ? "CONSTRAINT $name " : '') .
+ 'PRIMARY KEY (' . join( ', ', @fields ) . ')';
+ }
+ elsif ( $c->type eq UNIQUE ) {
+ # Don't create UNIQUE constraints identical to the primary key
+ if ( my $pk = $table->primary_key ) {
+ my $u_fields = join(":", @fields);
+ my $pk_fields = join(":", $pk->fields);
+ next if $u_fields eq $pk_fields;
+ }
+
+ $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 @field_decs, 'CONSTRAINT ' . $index_name . ' UNIQUE ' .
+ 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( 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";
- elsif ( $index_type eq 'normal' ) {
- if ( !$index_name ) {
- $index_name =
- make_identifier($table_name, 'i_', '_'.$index_i++ );
+ if ( @rfields ) {
+ $def .= ' (' . join( ', ', @rfields ) . ')';
}
- elsif ( $index_name !~ m/^i_/ ) {
- $index_name = make_identifier( $index_name, 'i_' );
+
+ if ( $c->match_type ) {
+ $def .= ' MATCH ' .
+ ( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL';
}
- else {
- $index_name = make_identifier( $index_name );
+
+ if ( $c->on_delete ) {
+ $def .= ' ON DELETE '.join( ' ', $c->on_delete );
}
- push @index_decs, "CREATE INDEX $index_name on $table_name (".
- join( ', ', @{ $index->{'fields'} } ).
- ");"
- ;
+ # disabled by plu 2007-12-29 - doesn't exist for oracle
+ #if ( $c->on_update ) {
+ # $def .= ' ON UPDATE '.join( ' ', $c->on_update );
+ #}
+
+ push @fk_defs, sprintf("ALTER TABLE %s ADD %s", $table_name_ur, $def);
+ }
+ }
+
+ #
+ # Index Declarations
+ #
+ my @index_defs = ();
+ for my $index ( $table->get_indices ) {
+ my $index_name = $index->name || '';
+ my $index_type = $index->type || NORMAL;
+ my @fields = map { unreserve( $_, $table_name ) }
+ $index->fields;
+ next unless @fields;
+
+ my @index_options;
+ for my $opt ( $index->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 @index_options, $key;
+ }
+ else {
+ push @index_options, "$key $value";
+ }
+ }
}
+ my $index_options = @index_options
+ ? "\n".join("\n", @index_options) : '';
+ if ( $index_type eq PRIMARY_KEY ) {
+ $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 NORMAL ) {
+ $index_name = $index_name ? mk_name( $index_name )
+ : mk_name( $table_name, $index_name || 'i' );
+ push @index_defs,
+ "CREATE INDEX $index_name on $table_name_ur (".
+ join( ', ', @fields ).
+ ")$index_options";
+ }
+ elsif ( $index_type eq UNIQUE ) {
+ $index_name = $index_name ? mk_name( $index_name )
+ : mk_name( $table_name, $index_name || 'i' );
+ push @index_defs,
+ "CREATE UNIQUE INDEX $index_name on $table_name_ur (".
+ join( ', ', @fields ).
+ ")$index_options";
+ }
else {
- warn "On table $table_name, unknown index type: $index_type\n";
+ warn "Unknown index type ($index_type) on table $table_name.\n"
+ if $WARN;
}
}
- my $create_statement = "CREATE TABLE $table_name (\n".
- join( ",\n", map { " $_" } @field_decs ).
- "\n);"
- ;
-
- $output .= join( "\n\n",
- @comments,
- $create_statement,
- @trigger_decs,
- @index_decs,
- ''
- );
+ if ( my @table_comments = $table->comments ) {
+ for my $comment ( @table_comments ) {
+ next unless $comment;
+ $comment =~ s/'/''/g;
+ push @field_comments, "COMMENT ON TABLE $table_name_ur is\n '".
+ $comment . "'" unless $options->{no_comments}
+ ;
+ }
+ }
+
+ my $table_options = @table_options
+ ? "\n".join("\n", @table_options) : '';
+ push @create, "CREATE TABLE $table_name_ur (\n" .
+ join( ",\n", map { " $_" } @field_defs,
+ ($options->{delay_constraints} ? () : @constraint_defs) ) .
+ "\n)$table_options";
+
+ @constraint_defs = map { 'ALTER TABLE '.$table_name_ur.' ADD '.$_ }
+ @constraint_defs;
+
+ if ( $WARN ) {
+ if ( %truncated ) {
+ warn "Truncated " . keys( %truncated ) . " names:\n";
+ warn "\t" . join( "\n\t", sort keys %truncated ) . "\n";
+ }
+
+ if ( %unreserve ) {
+ warn "Encounted " . keys( %unreserve ) .
+ " unsafe names in schema (reserved or invalid):\n";
+ warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n";
+ }
}
- $output .= "#\n# End\n#\n";
+ return \@create, \@fk_defs, \@trigger_defs, \@index_defs, ($options->{delay_constraints} ? \@constraint_defs : []);
}
-#
-# Used to make index names
-#
-sub make_identifier {
- my ( $identifier, @mutations ) = @_;
- my $length_of_mutations;
- for my $mutation ( @mutations ) {
- $length_of_mutations += length( $mutation );
- }
+sub alter_field {
+ my ($from_field, $to_field, $options) = @_;
- if (
- length( $identifier ) + $length_of_mutations >
- $max_identifier_length
- ) {
- $identifier = substr(
- $identifier,
- 0,
- $max_identifier_length - $length_of_mutations
- );
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($to_field, $options, {});
+
+ # Fix ORA-01442
+ if ($to_field->is_nullable && !$from_field->is_nullable) {
+ die 'Cannot remove NOT NULL from table field';
+ } elsif (!$from_field->is_nullable && !$to_field->is_nullable) {
+ @$field_defs = map { s/ NOT NULL//; $_} @$field_defs;
}
- for my $mutation ( @mutations ) {
- if ( $mutation =~ m/.+_$/ ) {
- $identifier = $mutation.$identifier;
- }
- elsif ( $mutation =~ m/^_.+/ ) {
- $identifier = $identifier.$mutation;
+ my $table_name = $to_field->table->name;
+ my $table_name_ur = unreserve( $table_name );
+
+ return 'ALTER TABLE '.$table_name_ur.' MODIFY ( '.join('', @$field_defs).' )';
+}
+
+sub add_field {
+ my ($new_field, $options) = @_;
+
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($new_field, $options, {});
+
+ my $table_name = $new_field->table->name;
+ my $table_name_ur = unreserve( $table_name );
+
+ my $out = sprintf('ALTER TABLE %s ADD ( %s )',
+ $table_name_ur,
+ join('', @$field_defs));
+ return $out;
+}
+
+sub create_field {
+ my ($field, $options, $field_name_scope) = @_;
+
+ my (@create, @field_defs, @trigger_defs, @field_comments);
+
+ my $table_name = $field->table->name;
+ my $table_name_ur = unreserve( $table_name );
+
+ #
+ # Field name
+ #
+ my $field_name = mk_name(
+ $field->name, '', $field_name_scope, 1
+ );
+
+ my $field_name_ur = unreserve( $field_name, $table_name );
+ my $field_def = $field_name_ur;
+ $field->name( $field_name_ur );
+
+ #
+ # Datatype
+ #
+ my $check;
+ my $data_type = lc $field->data_type;
+ my @size = $field->size;
+ my %extra = $field->extra;
+ my $list = $extra{'list'} || [];
+ # \todo deal with embedded quotes
+ my $commalist = join( ', ', map { qq['$_'] } @$list );
+
+ if ( $data_type eq 'enum' ) {
+ $check = "CHECK ($field_name_ur IN ($commalist))";
+ $data_type = 'varchar2';
+ }
+ elsif ( $data_type eq 'set' ) {
+ # XXX add a CHECK constraint maybe
+ # (trickier and slower, than enum :)
+ $data_type = 'varchar2';
+ }
+ else {
+ $data_type = defined $translate{ $data_type } ?
+ $translate{ $data_type } :
+ $data_type;
+ $data_type ||= 'varchar2';
+ }
+
+ # ensure size is not bigger than max size oracle allows for data type
+ if ( defined $max_size{$data_type} ) {
+ for ( my $i = 0 ; $i < scalar @size ; $i++ ) {
+ my $max =
+ ref( $max_size{$data_type} ) eq 'ARRAY'
+ ? $max_size{$data_type}->[$i]
+ : $max_size{$data_type};
+ $size[$i] = $max if $size[$i] > $max;
}
}
- if ( $used_identifiers{ $identifier } ) {
- my $index = 1;
- if ( $identifier =~ m/_(\d+)$/ ) {
- $index = $1;
- $identifier = substr(
- $identifier,
- 0,
- length( $identifier ) - ( length( $index ) + 1 )
- );
- }
- $index++;
- return make_identifier( $identifier, '_'.$index );
+ #
+ # 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;
}
- $used_identifiers{ $identifier } = 1;
+ if ( $data_type eq 'clob' && $field->is_unique ) {
+ $data_type = 'varchar2';
+ $size[0] = 4000;
+ warn "CLOB cannot be a unique key, changing to VARCHAR2\n"
+ if $WARN;
+ }
- return $identifier;
-}
+ #
+ # 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 ) {
+ #
+ # 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 (ref $default and defined $$default) {
+ $default = $$default;
+ } elsif (ref $default) {
+ $default = 'NULL';
+ } elsif (
+ $data_type =~ /^number$/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 ) {
+ $field_def .= ' NOT NULL';
+ }
+
+ $field_def .= " $check" if $check;
+
+ #
+ # Auto_increment
+ #
+ if ( $field->is_auto_increment ) {
+ my $base_name = $table_name_ur . "_". $field_name;
+ my $seq_name = mk_name( $base_name, 'sq' );
+ my $trigger_name = mk_name( $base_name, 'ai' );
+
+ push @create, qq[DROP SEQUENCE $seq_name] if $options->{add_drop_table};
+ push @create, "CREATE SEQUENCE $seq_name";
+ my $trigger =
+ "CREATE OR REPLACE TRIGGER $trigger_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".
+ ")\n".
+ "BEGIN\n" .
+ " SELECT $seq_name.nextval\n" .
+ " INTO :new." . $field->name."\n" .
+ " FROM dual;\n" .
+ "END;\n";
+
+ #
+ # If wantarray is set we have to omit the last "/" in this statement so it
+ # can be executed by DBI->do() directly.
+ #
+ $trigger .= "/" unless $options->{wantarray};
+
+ push @trigger_defs, $trigger;
+ }
+
+ if ( lc $field->data_type eq 'timestamp' ) {
+ my $base_name = $table_name_ur . "_". $field_name_ur;
+ my $trig_name = mk_name( $base_name, 'ts' );
+ my $trigger =
+ "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".
+ "BEGIN \n".
+ " SELECT sysdate INTO :new.$field_name_ur FROM dual;\n".
+ "END;\n";
+
+ #
+ # If wantarray is set we have to omit the last "/" in this statement so it
+ # can be executed by DBI->do() directly.
+ #
+ $trigger .= "/" unless $options->{wantarray};
+
+ push @trigger_defs, $trigger;
+ }
+
+ push @field_defs, $field_def;
+
+ if ( my $comment = $field->comments ) {
+ $comment =~ s/'/''/g;
+ push @field_comments,
+ "COMMENT ON COLUMN $table_name_ur.$field_name_ur is\n '" .
+ $comment . "';" unless $options->{no_comments};
+ }
+
+ return \@create, \@field_defs, \@trigger_defs, \@field_comments;
-#
-# Checks to see if an identifier is not too long
-#
-sub check_identifier {
- my $identifier = shift;
- die "Identifier '$identifier' is too long, unrecoverable error.\n"
- if length( $identifier ) > $max_identifier_length;
- return $identifier;
}
-1;
-#-----------------------------------------------------
-# All bad art is the result of good intentions.
-# Oscar Wilde
-#-----------------------------------------------------
+sub create_view {
+ my ($view) = @_;
-=head1 NAME
+ my $out = sprintf("CREATE VIEW %s AS\n%s",
+ $view->name,
+ $view->sql);
-SQL::Translator::Producer::Oracle - Oracle SQL producer
+ return $out;
+}
-=head1 SYNOPSIS
+# -------------------------------------------------------------------
+sub mk_name {
+ my $basename = shift || '';
+ my $type = shift || '';
+ $type = '' if $type =~ /^\d/;
+ my $scope = shift || '';
+ my $critical = shift || '';
+ my $basename_orig = $basename;
+ my $max_name = $type
+ ? $max_id_length - (length($type) + 1)
+ : $max_id_length;
+ $basename = substr( $basename, 0, $max_name )
+ if length( $basename ) > $max_name;
+ my $name = $type ? "${type}_$basename" : $basename;
+
+ if ( $basename ne $basename_orig and $critical ) {
+ my $show_type = $type ? "+'$type'" : "";
+ warn "Truncating '$basename_orig'$show_type to $max_id_length ",
+ "character limit to make '$name'\n" if $WARN;
+ $truncated{ $basename_orig } = $name;
+ }
- use SQL::Translator::Parser::MySQL;
- use SQL::Translator::Producer::Oracle;
+ $scope ||= \%global_names;
+ if ( my $prev = $scope->{ $name } ) {
+ my $name_orig = $name;
+ substr($name, $max_id_length - 2) = ""
+ if length( $name ) >= $max_id_length - 1;
+ $name .= sprintf( "%02d", $prev++ );
- my $original_create = ""; # get this from somewhere...
- my $translator = SQL::Translator->new;
+ warn "The name '$name_orig' has been changed to ",
+ "'$name' to make it unique.\n" if $WARN;
- $translator->parser("SQL::Translator::Parser::MySQL");
- $translator->producer("SQL::Translator::Producer::Oracle");
+ $scope->{ $name_orig }++;
+ }
- my $new_create = $translator->translate($original_create);
+ $scope->{ $name }++;
+ return $name;
+}
-=head1 DESCRIPTION
+# -------------------------------------------------------------------
+sub unreserve {
+ my $name = shift || '';
+ my $schema_obj_name = shift || '';
+
+ my ( $suffix ) = ( $name =~ s/(\W.*)$// ) ? $1 : '';
+
+ # also trap fields that don't begin with a letter
+ return $name if !$ora_reserved{ uc $name } && $name =~ /^[a-z]/i;
+
+ if ( $schema_obj_name ) {
+ ++$unreserve{"$schema_obj_name.$name"};
+ }
+ else {
+ ++$unreserve{"$name (table name)"};
+ }
-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.
+ my $unreserve = sprintf '%s_', $name;
+ return $unreserve.$suffix;
+}
-=head1 BUGS
+1;
-Problem with SQL::Translator::Producer::Oracle: it is keeping track
-of the last sequence number used, so as not to duplicate them, which
-is reasonable. However on runs past the first, it seems to be
-creating multiple constraint lines, that look like:
+# -------------------------------------------------------------------
+# All bad art is the result of good intentions.
+# Oscar Wilde
+# -------------------------------------------------------------------
- CONSTRAINT i_sessions_pk_2 PRIMARY KEY (id),
- CONSTRAINT i_sessions_pk_3 PRIMARY KEY (id)
+=pod
-This is a very preliminary finding, and needs to be investigated more
-thoroughly, of course.
+=head1 CREDITS
+Mad props to Tim Bunce for much of the logic stolen from his "mysql2ora"
+script.
=head1 AUTHOR
-Ken Y. Clark, kclark@logsoft.com
+Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>.
=head1 SEE ALSO
-perl(1).
+SQL::Translator, DDL::Oracle, mysql2ora.
=cut
projects / dbsrgits/SQL-Translator.git / blobdiff