1 package DBIx::Class::Storage::DBI::Oracle::Generic;
2 # -*- mode: cperl; cperl-indent-level: 2 -*-
9 DBIx::Class::Storage::DBI::Oracle::Generic - Automatic primary key class for Oracle
13 # In your table classes
14 __PACKAGE__->load_components(qw/PK::Auto Core/);
15 __PACKAGE__->add_columns({ id => { sequence => 'mysequence', auto_nextval => 1 } });
16 __PACKAGE__->set_primary_key('id');
17 __PACKAGE__->sequence('mysequence');
21 This class implements autoincrements for Oracle.
27 use Carp::Clan qw/^DBIx::Class/;
29 use base qw/DBIx::Class::Storage::DBI::MultiDistinctEmulation/;
31 # __PACKAGE__->load_components(qw/PK::Auto/);
33 sub _dbh_last_insert_id {
34 my ($self, $dbh, $source, @columns) = @_;
36 foreach my $col (@columns) {
37 my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col));
38 my $id = $self->_sequence_fetch( 'currval', $seq );
44 sub _dbh_get_autoinc_seq {
45 my ($self, $dbh, $source, $col) = @_;
47 # look up the correct sequence automatically
49 SELECT trigger_body FROM ALL_TRIGGERS t
50 WHERE t.table_name = ?
51 AND t.triggering_event = 'INSERT'
52 AND t.status = 'ENABLED'
55 # trigger_body is a LONG
56 $dbh->{LongReadLen} = 64 * 1024 if ($dbh->{LongReadLen} < 64 * 1024);
60 # check for fully-qualified name (eg. SCHEMA.TABLENAME)
61 if ( my ( $schema, $table ) = $source->name =~ /(\w+)\.(\w+)/ ) {
63 SELECT trigger_body FROM ALL_TRIGGERS t
64 WHERE t.owner = ? AND t.table_name = ?
65 AND t.triggering_event = 'INSERT'
66 AND t.status = 'ENABLED'
68 $sth = $dbh->prepare($sql);
69 $sth->execute( uc($schema), uc($table) );
72 $sth = $dbh->prepare($sql);
73 $sth->execute( uc( $source->name ) );
75 while (my ($insert_trigger) = $sth->fetchrow_array) {
76 return uc($1) if $insert_trigger =~ m!(\w+)\.nextval!i; # col name goes here???
78 $self->throw_exception("Unable to find a sequence INSERT trigger on table '" . $source->name . "'.");
82 my ( $self, $type, $seq ) = @_;
83 my ($id) = $self->dbh->selectrow_array("SELECT ${seq}.${type} FROM DUAL");
89 Returns true if we have an open (and working) database connection, false if it is not (yet)
90 open (or does not work). (Executes a simple SELECT to make sure it works.)
92 The reason this is needed is that L<DBD::Oracle>'s ping() does not do a real
93 OCIPing but just gets the server version, which doesn't help if someone killed
101 if (not $self->SUPER::connected(@_)) {
105 my $dbh = $self->_dbh;
107 local $dbh->{RaiseError} = 1;
110 my $ping_sth = $dbh->prepare_cached("select 1 from dual");
121 my ($dbh, $op, $extra_bind, $ident, $bind_attributes, @args) = @_;
123 my $wantarray = wantarray;
125 my (@res, $exception, $retried);
131 @res = $self->SUPER::_dbh_execute(@_);
133 $res[0] = $self->SUPER::_dbh_execute(@_);
137 if ($exception =~ /ORA-01003/) {
138 # ORA-01003: no statement parsed (someone changed the table somehow,
139 # invalidating your cursor.)
140 my ($sql, $bind) = $self->_prep_for_execute($op, $extra_bind, $ident, \@args);
141 delete $dbh->{CachedKids}{$sql};
145 } while (not $retried++);
148 $self->throw_exception($exception) if $exception;
150 wantarray ? @res : $res[0]
153 =head2 get_autoinc_seq
155 Returns the sequence name for an autoincrement column
159 sub get_autoinc_seq {
160 my ($self, $source, $col) = @_;
162 $self->dbh_do('_dbh_get_autoinc_seq', $source, $col);
165 =head2 columns_info_for
167 This wraps the superclass version of this method to force table
172 sub columns_info_for {
173 my ($self, $table) = @_;
175 $self->next::method(uc($table));
178 =head2 datetime_parser_type
180 This sets the proper DateTime::Format module for use with
181 L<DBIx::Class::InflateColumn::DateTime>.
185 sub datetime_parser_type { return "DateTime::Format::Oracle"; }
188 my ($self, $name) = @_;
190 $self->dbh->do("SAVEPOINT $name");
193 # Oracle automatically releases a savepoint when you start another one with the
195 sub _svp_release { 1 }
198 my ($self, $name) = @_;
200 $self->dbh->do("ROLLBACK TO SAVEPOINT $name")
205 Andy Grundman <andy@hybridized.org>
207 Scott Connelly <scottsweep@yahoo.com>
211 You may distribute this code under the same terms as Perl itself.