X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2FOracle%2FGeneric.pm;h=854566a98c1e12e5d99bc010a2dadc253fb7f5d2;hb=38aead8ef4d233c52f9efa21e6ba195285301b4c;hp=88cf72d2dd857cc13e32a1488a13c421d2e17b4c;hpb=e33b954c9a8c955f72f302255aad685cdd9a8cd4;p=dbsrgits%2FDBIx-Class.git diff --git a/lib/DBIx/Class/Storage/DBI/Oracle/Generic.pm b/lib/DBIx/Class/Storage/DBI/Oracle/Generic.pm index 88cf72d..854566a 100644 --- a/lib/DBIx/Class/Storage/DBI/Oracle/Generic.pm +++ b/lib/DBIx/Class/Storage/DBI/Oracle/Generic.pm @@ -9,15 +9,17 @@ DBIx::Class::Storage::DBI::Oracle::Generic - Oracle Support for DBIx::Class =head1 SYNOPSIS - # In your table classes - __PACKAGE__->load_components(qw/PK::Auto Core/); + # In your result (table) classes + use base 'DBIx::Class::Core'; __PACKAGE__->add_columns({ id => { sequence => 'mysequence', auto_nextval => 1 } }); __PACKAGE__->set_primary_key('id'); __PACKAGE__->sequence('mysequence'); =head1 DESCRIPTION -This class implements autoincrements for Oracle. +This class implements base Oracle support. The subclass +L is for C<(+)> joins in Oracle +versions before 9. =head1 METHODS @@ -26,6 +28,22 @@ This class implements autoincrements for Oracle. use base qw/DBIx::Class::Storage::DBI/; use mro 'c3'; +sub deployment_statements { + my $self = shift;; + my ($schema, $type, $version, $dir, $sqltargs, @rest) = @_; + + $sqltargs ||= {}; + my $quote_char = $self->schema->storage->{'_sql_maker_opts'}->{'quote_char'}; + $sqltargs->{quote_table_names} = 0 unless $quote_char; + $sqltargs->{quote_field_names} = 0 unless $quote_char; + + my $oracle_version = eval { $self->_get_dbh->get_info(18) }; + + $sqltargs->{producer_args}{oracle_version} = $oracle_version; + + $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest); +} + sub _dbh_last_insert_id { my ($self, $dbh, $source, @columns) = @_; my @ids = (); @@ -53,8 +71,20 @@ sub _dbh_get_autoinc_seq { my $sth; + my $source_name; + if ( ref $source->name ne 'SCALAR' ) { + $source_name = $source->name; + } + else { + $source_name = ${$source->name}; + } + + unless ($self->schema->storage->{'_sql_maker_opts'}->{'quote_char'}) { + $source_name = uc($source_name); + } + # check for fully-qualified name (eg. SCHEMA.TABLENAME) - if ( my ( $schema, $table ) = $source->name =~ /(\w+)\.(\w+)/ ) { + if ( my ( $schema, $table ) = $source_name =~ /(\w+)\.(\w+)/ ) { $sql = q{ SELECT trigger_body FROM ALL_TRIGGERS t WHERE t.owner = ? AND t.table_name = ? @@ -62,14 +92,17 @@ sub _dbh_get_autoinc_seq { AND t.status = 'ENABLED' }; $sth = $dbh->prepare($sql); - $sth->execute( uc($schema), uc($table) ); + my $table_name = $self -> sql_maker -> _quote($table); + my $schema_name = $self -> sql_maker -> _quote($schema); + + $sth->execute( $schema_name, $table_name ); } else { $sth = $dbh->prepare($sql); - $sth->execute( uc( $source->name ) ); + $sth->execute( $source_name ); } while (my ($insert_trigger) = $sth->fetchrow_array) { - return uc($1) if $insert_trigger =~ m!(\w+)\.nextval!i; # col name goes here??? + return $1 if $insert_trigger =~ m!("?\w+"?)\.nextval!i; # col name goes here??? } $self->throw_exception("Unable to find a sequence INSERT trigger on table '" . $source->name . "'."); } @@ -150,7 +183,7 @@ names to uppercase sub columns_info_for { my ($self, $table) = @_; - $self->next::method(uc($table)); + $self->next::method($table); } =head2 datetime_parser_type @@ -199,11 +232,15 @@ sub connect_call_datetime_setup { my $timestamp_tz_format = $ENV{NLS_TIMESTAMP_TZ_FORMAT} ||= 'YYYY-MM-DD HH24:MI:SS.FF TZHTZM'; - $self->_do_query("alter session set nls_date_format = '$date_format'"); $self->_do_query( -"alter session set nls_timestamp_format = '$timestamp_format'"); + "alter session set nls_date_format = '$date_format'" + ); $self->_do_query( -"alter session set nls_timestamp_tz_format='$timestamp_tz_format'"); + "alter session set nls_timestamp_format = '$timestamp_format'" + ); + $self->_do_query( + "alter session set nls_timestamp_tz_format='$timestamp_tz_format'" + ); } =head2 source_bind_attributes @@ -223,37 +260,44 @@ table with more than one LOB column. =cut -sub source_bind_attributes +sub source_bind_attributes { - require DBD::Oracle; - my $self = shift; - my($source) = @_; + require DBD::Oracle; + my $self = shift; + my($source) = @_; - my %bind_attributes; + my %bind_attributes; - foreach my $column ($source->columns) { - my $data_type = $source->column_info($column)->{data_type} || ''; - next unless $data_type; + foreach my $column ($source->columns) { + my $data_type = $source->column_info($column)->{data_type} || ''; + next unless $data_type; - my %column_bind_attrs = $self->bind_attribute_by_data_type($data_type); + my %column_bind_attrs = $self->bind_attribute_by_data_type($data_type); + + if ($data_type =~ /^[BC]LOB$/i) { + if ($DBD::Oracle::VERSION eq '1.23') { + $self->throw_exception( +"BLOB/CLOB support in DBD::Oracle == 1.23 is broken, use an earlier or later ". +"version.\n\nSee: https://rt.cpan.org/Public/Bug/Display.html?id=46016\n" + ); + } - if ($data_type =~ /^[BC]LOB$/i) { - $column_bind_attrs{'ora_type'} = uc($data_type) eq 'CLOB' ? - DBD::Oracle::ORA_CLOB() : - DBD::Oracle::ORA_BLOB(); - $column_bind_attrs{'ora_field'} = $column; - } + $column_bind_attrs{'ora_type'} = uc($data_type) eq 'CLOB' + ? DBD::Oracle::ORA_CLOB() + : DBD::Oracle::ORA_BLOB() + ; + $column_bind_attrs{'ora_field'} = $column; + } - $bind_attributes{$column} = \%column_bind_attrs; - } + $bind_attributes{$column} = \%column_bind_attrs; + } - return \%bind_attributes; + return \%bind_attributes; } sub _svp_begin { - my ($self, $name) = @_; - - $self->_get_dbh->do("SAVEPOINT $name"); + my ($self, $name) = @_; + $self->_get_dbh->do("SAVEPOINT $name"); } # Oracle automatically releases a savepoint when you start another one with the @@ -261,9 +305,48 @@ sub _svp_begin { sub _svp_release { 1 } sub _svp_rollback { - my ($self, $name) = @_; + my ($self, $name) = @_; + $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name") +} + +=head2 relname_to_table_alias + +L uses L names as table aliases in +queries. + +Unfortunately, Oracle doesn't support identifiers over 30 chars in length, so +the L name is shortened and appended with half of an +MD5 hash. + +See L. + +=cut + +sub relname_to_table_alias { + my $self = shift; + my ($relname, $join_count) = @_; + + my $alias = $self->next::method(@_); + + return $alias if length($alias) <= 30; + + # get a base64 md5 of the alias with join_count + require Digest::MD5; + my $ctx = Digest::MD5->new; + $ctx->add($alias); + my $md5 = $ctx->b64digest; + + # remove alignment mark just in case + $md5 =~ s/=*\z//; + + # truncate and prepend to truncated relname without vowels + (my $devoweled = $relname) =~ s/[aeiou]//g; + my $shortened = substr($devoweled, 0, 18); + + my $new_alias = + $shortened . '_' . substr($md5, 0, 30 - length($shortened) - 1); - $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name") + return $new_alias; } =head1 AUTHOR