package SQL::Translator::Producer::Oracle;
-# -------------------------------------------------------------------
-# $Id: Oracle.pm,v 1.11 2003-06-09 01:58:23 kycl4rk Exp $
-# -------------------------------------------------------------------
-# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
-# darren chamberlain <darren@cpan.org>,
-# Chris Mungall <cjm@fruitfly.org>
-#
-# 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::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.
+
+=item quote_field_names
+
+Controls whether quotes are being used around column names in generated DDL.
+
+=item quote_table_names
+
+Controls whether quotes are being used around table, sequence and trigger names in
+generated DDL.
+
+=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 $DEBUG $WARN ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.11 $ =~ /(\d+)\.(\d+)/;
+use warnings;
+our ( $DEBUG, $WARN );
+our $VERSION = '1.59';
$DEBUG = 0 unless defined $DEBUG;
use SQL::Translator::Schema::Constants;
# MySQL types
#
bigint => 'number',
- double => 'number',
+ double => 'float',
decimal => 'number',
- float => 'number',
+ float => 'float',
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',
macaddr => 'varchar2',
bit => 'number',
'bit varying' => 'number',
+
+ #
+ # Oracle types
+ #
+ 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
+# Oracle 8/9 max size of data types from:
+# http://www.ss64.com/orasyntax/datatypes.html
#
-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
+my %max_size = (
+ char => 2000,
+ float => 126,
+ nchar => 2000,
+ nvarchar2 => 4000,
+ number => [ 38, 127 ],
+ raw => 2000,
+ varchar => 4000, # only synonym for varchar2
+ varchar2 => 4000,
);
my $max_id_length = 30;
my %used_identifiers = ();
my %global_names;
-my %unreserve;
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 $output;
+# Quote used to escape table, field, sequence and trigger names
+my $quote_char = '"';
- $output .= header_comment unless ($no_comments);
+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 $oracle_version = $translator->producer_args->{oracle_version} || 0;
+ 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);
+ my $qt = 1 if $translator->quote_table_names;
+ my $qf = 1 if $translator->quote_field_names;
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".
+ $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";
}
- #
- # Print create for each table
- #
- 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;
+ 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,
+ quote_table_names => $qt,
+ quote_field_names => $qf,
+ }
+ );
+ push @table_defs, @$table_def;
+ push @fk_defs, @$fk_def;
+ push @trigger_defs, @$trigger_def;
+ push @index_defs, @$index_def;
+ push @constraint_defs, @$constraint_def;
+ }
- my ( @comments, @field_defs, @trigger_defs, @constraint_defs );
+ my (@view_defs);
+ foreach my $view ( $schema->get_views ) {
+ my ( $view_def ) = create_view(
+ $view,
+ {
+ add_drop_view => $add_drop_table,
+ quote_table_names => $qt,
+ }
+ );
+ push @view_defs, @$view_def;
+ }
- push @comments, "--\n-- Table: $table_name_ur\n--" unless $no_comments;
+ if (wantarray) {
+ return defined $create ? $create : (), @table_defs, @view_defs, @fk_defs, @trigger_defs, @index_defs, @constraint_defs;
+ }
+ else {
+ $create .= join (";\n\n", @table_defs, @view_defs, @fk_defs, @index_defs, @constraint_defs);
+ $create .= ";\n\n";
+ # If wantarray is not set we have to add "/" in this statement
+ # DBI->do() needs them omitted
+ # triggers may NOT end with a semicolon but a "/" instead
+ $create .= "$_/\n\n"
+ for @trigger_defs;
+ return $create;
+ }
+}
- my %field_name_scope;
- for my $field ( $table->get_fields ) {
- #
- # 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;
-
- #
- # Datatype
- #
- my $check;
- my $data_type = lc $field->data_type;
- my @size = $field->size;
- my %extra = $field->extra;
- my $list = $extra{'list'} || [];
- my $commalist = join ",", @$list;
-
- if ( $data_type eq 'enum' ) {
- $check = "CHECK ($field_name 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 } :
- die "Unknown datatype: $data_type\n";
- }
+sub create_table {
+ my ($table, $options) = @_;
+ my $qt = $options->{quote_table_names};
+ my $qf = $options->{quote_field_names};
+ my $table_name = $table->name;
+ my $table_name_q = quote($table_name,$qt);
- $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'"
- );
- }
+ my $item = '';
+ my $drop;
+ my (@create, @field_defs, @constraint_defs, @fk_defs, @trigger_defs);
- #
- # Not null constraint
- #
- unless ( $field->is_nullable ) {
- my $constraint_name = mk_name($field_name_ur, 'nn');
- $field_def .= ' CONSTRAINT ' . $constraint_name . ' NOT NULL';
- }
+ push @create, "--\n-- Table: $table_name\n--" unless $options->{no_comments};
+ push @create, qq[DROP TABLE $table_name_q CASCADE CONSTRAINTS] if $options->{add_drop_table};
- $field_def .= " $check" if $check;
-
- #
- # Auto_increment
- #
- if ( $field->is_auto_increment ) {
- my $base_name = $table_name . "_". $field_name;
- my $seq_name = mk_name( $base_name, 'sq' );
- my $trigger_name = mk_name( $base_name, 'ai' );
-
- push @trigger_defs,
- "CREATE SEQUENCE $seq_name;\n" .
- "CREATE OR REPLACE TRIGGER $trigger_name\n" .
- "BEFORE INSERT ON $table_name\n" .
- "FOR EACH ROW WHEN (\n" .
- " new.$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/";
- ;
- }
+ 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;
+ }
- if ( lc $field->data_type eq 'timestamp' ) {
- my $base_name = $table_name . "_". $field_name_ur;
- my $trig_name = mk_name( $base_name, 'ts' );
- 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".
- "BEGIN \n".
- " SELECT sysdate INTO :new.$field_name_ur} FROM dual;\n".
- "END;\n/";
+ #
+ # 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";
+ }
}
-
- push @field_defs, $field_def;
}
#
# 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 ) }
- $c->reference_fields;
- next unless @fields;
+ my @fields = map { quote($_,$qf) } $c->fields;
+ my @rfields = map { quote($_,$qf) } $c->reference_fields;
+
+ next if !@fields && $c->type ne CHECK_C;
if ( $c->type eq PRIMARY_KEY ) {
- $name ||= mk_name( $table_name, 'pk' );
- push @constraint_defs, "CONSTRAINT $name PRIMARY KEY ".
- '(' . join( ', ', @fields ) . ')';
+ # create a name if delay_constraints
+ $name ||= mk_name( $table_name, 'pk' )
+ if $options->{delay_constraints};
+ $name = quote($name,$qf);
+ push @constraint_defs, ($name ? "CONSTRAINT $name " : '') .
+ 'PRIMARY KEY (' . join( ', ', @fields ) . ')';
}
elsif ( $c->type eq UNIQUE ) {
- $name ||= mk_name( $table_name, ++$constraint_name_default );
+ # 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 $pk_fields;
+ }
+
+ if ($name) {
+ # Force prepend of table_name as ORACLE doesn't allow duplicate
+ # CONSTRAINT names even for different tables (ORA-02264)
+ $name = mk_name( "${table_name}_$name", 'u' ) unless $name =~ /^$table_name/;
+ }
+ else {
+ $name = mk_name( $table_name, 'u' );
+ }
+
+ $name = quote($name, $qf);
+
+ for my $f ( $c->fields ) {
+ my $field_def = $table->get_field( $f ) or next;
+ my $dtype = $translate{ ref $field_def->data_type eq "ARRAY" ? $field_def->data_type->[0] : $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' );
+ $name = quote($name, $qf);
+ 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' );
+ $name = quote($name, $qf);
+ my $on_delete = uc ($c->on_delete || '');
+
+ my $def = "CONSTRAINT $name FOREIGN KEY ";
+
+ if ( @fields ) {
+ $def .= '(' . join( ', ', @fields ) . ')';
+ }
+
+ my $ref_table = quote($c->reference_table,$qt);
+
+ $def .= " REFERENCES $ref_table";
if ( @rfields ) {
$def .= ' (' . join( ', ', @rfields ) . ')';
}
if ( $c->match_type ) {
- $def .= ' MATCH ' .
+ $def .= ' MATCH ' .
( $c->match_type =~ /full/i ) ? 'FULL' : 'PARTIAL';
}
- if ( $c->on_delete ) {
- $def .= ' ON DELETE '.join( ' ', $c->on_delete );
+ if ( $on_delete && $on_delete ne "RESTRICT") {
+ $def .= ' ON DELETE '.$c->on_delete;
}
- if ( $c->on_update ) {
- $def .= ' ON UPDATE '.join( ' ', $c->on_update );
- }
+ # disabled by plu 2007-12-29 - doesn't exist for oracle
+ #if ( $c->on_update ) {
+ # $def .= ' ON UPDATE '. $c->on_update;
+ #}
- push @constraint_defs, $def;
+ push @fk_defs, sprintf("ALTER TABLE %s ADD %s", $table_name_q, $def);
}
}
# 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;
- my @fields = map { unreserve( $_, $table_name ) }
- $index->fields;
+ my @fields = map { quote($_, $qf) } $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 = mk_name( $table_name, 'pk' );
+ $index_name = $index_name ? mk_name( $index_name )
+ : mk_name( $table_name, 'pk' );
+ $index_name = quote($index_name, $qf);
push @field_defs, 'CONSTRAINT '.$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
- );
- push @index_defs,
- "CREATE INDEX $index_name on $table_name_ur (".
- join( ', ', @fields ).
- ");";
+ $index_name = $index_name ? mk_name( $index_name )
+ : mk_name( $table_name, $index_name || 'i' );
+ $index_name = quote($index_name, $qf);
+ push @index_defs,
+ "CREATE INDEX $index_name on $table_name_q (".
+ join( ', ', @fields ).
+ ")$index_options";
+ }
+ elsif ( $index_type eq UNIQUE ) {
+ $index_name = $index_name ? mk_name( $index_name )
+ : mk_name( $table_name, $index_name || 'i' );
+ $index_name = quote($index_name, $qf);
+ push @index_defs,
+ "CREATE UNIQUE INDEX $index_name on $table_name_q (".
+ join( ', ', @fields ).
+ ")$index_options";
}
else {
warn "Unknown index type ($index_type) on table $table_name.\n"
}
}
- 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" .
- join( ",\n", map { " $_" } @field_defs, @constraint_defs ) .
- "\n);"
- ;
-
- $output .= join( "\n\n",
- @comments,
- $create_statement,
- @trigger_defs,
- @index_defs,
- ''
- );
- }
+ 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_q is\n '".
+ $comment . "'" unless $options->{no_comments}
+ ;
+ }
+ }
+
+ my $table_options = @table_options
+ ? "\n".join("\n", @table_options) : '';
+ push @create, "CREATE TABLE $table_name_q (\n" .
+ join( ",\n", map { " $_" } @field_defs,
+ ($options->{delay_constraints} ? () : @constraint_defs) ) .
+ "\n)$table_options";
+
+ @constraint_defs = map { "ALTER TABLE $table_name_q ADD $_" }
+ @constraint_defs;
if ( $WARN ) {
if ( %truncated ) {
warn "Truncated " . keys( %truncated ) . " names:\n";
warn "\t" . join( "\n\t", sort keys %truncated ) . "\n";
}
+ }
+
+ return \@create, \@fk_defs, \@trigger_defs, \@index_defs, ($options->{delay_constraints} ? \@constraint_defs : []);
+}
+
+sub alter_field {
+ my ($from_field, $to_field, $options) = @_;
+
+ my $qt = $options->{quote_table_names};
+ my ($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;
+ }
+
+ my $table_name = quote($to_field->table->name,$qt);
+
+ return 'ALTER TABLE '.$table_name.' MODIFY ( '.join('', @$field_defs).' )';
+}
+
+sub add_field {
+ my ($new_field, $options) = @_;
+
+ my $qt = $options->{quote_table_names};
+ my ($field_create, $field_defs, $trigger_defs, $field_comments) =
+ create_field($new_field, $options, {});
+
+ my $table_name = quote($new_field->table->name,$qt);
+
+ my $out = sprintf('ALTER TABLE %s ADD ( %s )',
+ $table_name,
+ join('', @$field_defs));
+ return $out;
+}
+
+sub create_field {
+ my ($field, $options, $field_name_scope) = @_;
+ my $qf = $options->{quote_field_names};
+ my $qt = $options->{quote_table_names};
+
+ my (@create, @field_defs, @trigger_defs, @field_comments);
+
+ my $table_name = $field->table->name;
+ my $table_name_q = quote($table_name, $qt);
+
+ #
+ # Field name
+ #
+ my $field_name = mk_name(
+ $field->name, '', $field_name_scope, 1
+ );
+ my $field_name_q = quote($field_name, $qf);
+ my $field_def = quote($field_name, $qf);
+ $field->name( $field_name );
+
+ #
+ # 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_q 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 {
+ if (defined $translate{ $data_type }) {
+ if (ref $translate{ $data_type } eq "ARRAY") {
+ ($data_type,$size[0]) = @{$translate{ $data_type }};
+ } else {
+ $data_type = $translate{ $data_type };
+ }
+ }
+ $data_type ||= 'varchar2';
+ }
- if ( %unreserve ) {
- warn "Encounted " . keys( %unreserve ) .
- " unsafe names in schema (reserved or invalid):\n";
- warn "\t" . join( "\n\t", sort keys %unreserve ) . "\n";
+ # 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;
}
}
- return $output;
+ #
+ # 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;
+ }
+
+ 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;
+ }
+
+ #
+ # Fixes ORA-00907: missing right parenthesis
+ #
+ if ( $data_type =~ /(date|clob)/i ) {
+ undef @size;
+ }
+
+ #
+ # Fixes ORA-00906: missing right parenthesis
+ # if size is 0 or undefined
+ #
+ for (qw/varchar2/) {
+ if ( $data_type =~ /^($_)$/i ) {
+ $size[0] ||= $max_size{$_};
+ }
+ }
+
+ $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 . "_". $field_name;
+ my $seq_name = quote(mk_name( $base_name, 'sq' ),$qt);
+ my $trigger_name = quote(mk_name( $base_name, 'ai' ),$qt);
+
+ 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 $table_name_q\n" .
+ "FOR EACH ROW WHEN (\n" .
+ " new.$field_name_q IS NULL".
+ " OR new.$field_name_q = 0\n".
+ ")\n".
+ "BEGIN\n" .
+ " SELECT $seq_name.nextval\n" .
+ " INTO :new." . $field_name_q."\n" .
+ " FROM dual;\n" .
+ "END;\n";
+
+ push @trigger_defs, $trigger;
+ }
+
+ if ( lc $field->data_type eq 'timestamp' ) {
+ my $base_name = $table_name . "_". $field_name;
+ my $trig_name = quote(mk_name( $base_name, 'ts' ), $qt);
+ my $trigger =
+ "CREATE OR REPLACE TRIGGER $trig_name\n".
+ "BEFORE INSERT OR UPDATE ON $table_name_q\n".
+ "FOR EACH ROW WHEN (new.$field_name_q IS NULL)\n".
+ "BEGIN\n".
+ " SELECT sysdate INTO :new.$field_name_q FROM dual;\n".
+ "END;\n";
+
+ push @trigger_defs, $trigger;
+ }
+
+ push @field_defs, $field_def;
+
+ if ( my $comment = $field->comments ) {
+ $comment =~ s/'/''/g;
+ push @field_comments,
+ "COMMENT ON COLUMN $table_name_q.$field_name_q is\n '" .
+ $comment . "';" unless $options->{no_comments};
+ }
+
+ return \@create, \@field_defs, \@trigger_defs, \@field_comments;
+
+}
+
+
+sub create_view {
+ my ($view, $options) = @_;
+ my $qt = $options->{quote_table_names};
+ my $view_name = quote($view->name,$qt);
+
+ my @create;
+ push @create, qq[DROP VIEW $view_name]
+ if $options->{add_drop_view};
+
+ push @create, sprintf("CREATE VIEW %s AS\n%s",
+ $view_name,
+ $view->sql);
+
+ return \@create;
}
-# -------------------------------------------------------------------
sub mk_name {
- my $basename = shift || '';
- my $type = shift || '';
- my $scope = shift || '';
+ 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)
+ my $max_name = $type
+ ? $max_id_length - (length($type) + 1)
: $max_id_length;
- $basename = substr( $basename, 0, $max_name )
+ $basename = substr( $basename, 0, $max_name )
if length( $basename ) > $max_name;
my $name = $type ? "${type}_$basename" : $basename;
$scope ||= \%global_names;
if ( my $prev = $scope->{ $name } ) {
my $name_orig = $name;
- $name .= sprintf( "%02d", ++$prev );
- substr($name, $max_id_length - 3) = "00"
- if length( $name ) > $max_id_length;
+ substr($name, $max_id_length - 2) = ""
+ if length( $name ) >= $max_id_length - 1;
+ $name .= sprintf( "%02d", $prev++ );
warn "The name '$name_orig' has been changed to ",
"'$name' to make it unique.\n" if $WARN;
return $name;
}
-# -------------------------------------------------------------------
-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)"};
- }
+1;
- my $unreserve = sprintf '%s_', $name;
- return $unreserve.$suffix;
+sub quote {
+ my ($name, $q) = @_;
+ $q && $name ? "$quote_char$name$quote_char" : $name;
}
-1;
# -------------------------------------------------------------------
# All bad art is the result of good intentions.
# 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
+=head1 AUTHORS
-Ken Y. Clark E<lt>kclark@cpan.orgE<gt>
+Ken Youens-Clark E<lt>kclark@cpan.orgE<gt>,
+Alexander Hartmaier E<lt>abraxxa@cpan.orgE<gt>,
+Fabien Wernli E<lt>faxmodem@cpan.orgE<gt>.
=head1 SEE ALSO
-perl(1).
+SQL::Translator, DDL::Oracle, mysql2ora.
=cut
projects / dbsrgits/SQL-Translator.git / blobdiff