package DBIx::Class::Storage::DBI::InterBase;
-# partly stolen from DBIx::Class::Storage::DBI::MSSQL
-
use strict;
use warnings;
-use base qw/DBIx::Class::Storage::DBI/;
+use base qw/DBIx::Class::Storage::DBI::Firebird::Common/;
use mro 'c3';
-use List::Util();
+use Try::Tiny;
+use namespace::clean;
-__PACKAGE__->mk_group_accessors(simple => qw/
- _fb_auto_incs
-/);
+=head1 NAME
-sub _prep_for_execute {
- my $self = shift;
- my ($op, $extra_bind, $ident, $args) = @_;
+DBIx::Class::Storage::DBI::InterBase - Driver for the Firebird RDBMS via
+L<DBD::InterBase>
- my ($sql, $bind) = $self->next::method (@_);
+=head1 DESCRIPTION
- if ($op eq 'insert') {
- my @auto_inc_cols = grep {
- my $inserting = $args->[0]{$_};
+This driver is a subclass of L<DBIx::Class::Storage::DBI::Firebird::Common> for
+use with L<DBD::InterBase>, see that driver for general details.
- $ident->column_info($_)->{is_auto_increment} && (
- (not defined $inserting)
- ||
- (ref $inserting eq 'SCALAR' && $$inserting eq 'NULL')
- )
- } $ident->columns;
+You need to use either the
+L<disable_sth_caching|DBIx::Class::Storage::DBI/disable_sth_caching> option or
+L</connect_call_use_softcommit> (see L</CAVEATS>) for your code to function
+correctly with this driver. Otherwise you will likely get bizarre error messages
+such as C<no statement executing>. The alternative is to use the
+L<ODBC|DBIx::Class::Storage::DBI::ODBC::Firebird> driver, which is more suitable
+for long running processes such as under L<Catalyst>.
- if (@auto_inc_cols) {
- my $auto_inc_cols =
- join ', ',
- map $self->_quote_column_for_returning($_), @auto_inc_cols;
+To turn on L<DBIx::Class::InflateColumn::DateTime> support, see
+L</connect_call_datetime_setup>.
- $sql .= " RETURNING ($auto_inc_cols)";
+=cut
- $self->_fb_auto_incs([]);
- $self->_fb_auto_incs->[0] = \@auto_inc_cols;
- }
- }
+sub _ping {
+ my $self = shift;
- return ($sql, $bind);
-}
+ my $dbh = $self->_dbh or return 0;
-sub _quote_column_for_returning {
- my ($self, $col) = @_;
+ local $dbh->{RaiseError} = 1;
+ local $dbh->{PrintError} = 0;
- return $self->sql_maker->_quote($col);
+ return try {
+ $dbh->do('select 1 from rdb$database');
+ 1;
+ } catch {
+ 0;
+ };
}
-sub _execute {
+# We want dialect 3 for new features and quoting to work, DBD::InterBase uses
+# dialect 1 (interbase compat) by default.
+sub _init {
my $self = shift;
- my ($op) = @_;
-
- my ($rv, $sth, @bind) = $self->dbh_do($self->can('_dbh_execute'), @_);
-
- if ($op eq 'insert' && $self->_fb_auto_incs) {
- local $@;
- my (@auto_incs) = eval {
- local $SIG{__WARN__} = sub {};
- $sth->fetchrow_array
- };
- $self->_fb_auto_incs->[1] = \@auto_incs;
- $sth->finish;
- }
-
- return wantarray ? ($rv, $sth, @bind) : $rv;
+ $self->_set_sql_dialect(3);
}
-sub last_insert_id {
- my ($self, $source, @cols) = @_;
- my @result;
+sub _set_sql_dialect {
+ my $self = shift;
+ my $val = shift || 3;
- my %auto_incs;
- @auto_incs{ @{ $self->_fb_auto_incs->[0] } } =
- @{ $self->_fb_auto_incs->[1] };
+ my $dsn = $self->_dbi_connect_info->[0];
- push @result, $auto_incs{$_} for @cols;
+ return if ref($dsn) eq 'CODE';
- return @result;
+ if ($dsn !~ /ib_dialect=/) {
+ $self->_dbi_connect_info->[0] = "$dsn;ib_dialect=$val";
+ my $connected = defined $self->_dbh;
+ $self->disconnect;
+ $self->ensure_connected if $connected;
+ }
}
-# this sub stolen from DB2
+=head2 connect_call_use_softcommit
-sub _sql_maker_opts {
- my ( $self, $opts ) = @_;
+Used as:
- if ( $opts ) {
- $self->{_sql_maker_opts} = { %$opts };
- }
+ on_connect_call => 'use_softcommit'
- return { limit_dialect => 'FirstSkip', %{$self->{_sql_maker_opts}||{}} };
-}
+In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the
+L<DBD::InterBase> C<ib_softcommit> option.
-sub datetime_parser_type { __PACKAGE__ }
+You need either this option or C<< disable_sth_caching => 1 >> for
+L<DBIx::Class> code to function correctly (otherwise you may get C<no statement
+executing> errors.) Or use the L<ODBC|DBIx::Class::Storage::DBI::ODBC::Firebird>
+driver.
-my ($datetime_parser, $datetime_formatter);
+The downside of using this option is that your process will B<NOT> see UPDATEs,
+INSERTs and DELETEs from other processes for already open statements.
-sub parse_datetime {
- shift;
- require DateTime::Format::Strptime;
- $datetime_parser ||= DateTime::Format::Strptime->new(
- pattern => '%a %d %b %Y %r',
-# there should be a %Z (TZ) on the end, but it's ambiguous and not parsed
- on_error => 'croak',
- );
- $datetime_parser->parse_datetime(shift);
+=cut
+
+sub connect_call_use_softcommit {
+ my $self = shift;
+
+ $self->_dbh->{ib_softcommit} = 1;
}
-sub format_datetime {
- shift;
- require DateTime::Format::Strptime;
- $datetime_formatter ||= DateTime::Format::Strptime->new(
- pattern => '%F %H:%M:%S.%4N',
- on_error => 'croak',
- );
- $datetime_formatter->format_datetime(shift);
+=head2 connect_call_datetime_setup
+
+Used as:
+
+ on_connect_call => 'datetime_setup'
+
+In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the date and
+timestamp formats using:
+
+ $dbh->{ib_time_all} = 'ISO';
+
+See L<DBD::InterBase> for more details.
+
+The C<TIMESTAMP> data type supports up to 4 digits after the decimal point for
+second precision. The full precision is used.
+
+The C<DATE> data type stores the date portion only, and it B<MUST> be declared
+with:
+
+ data_type => 'date'
+
+in your Result class.
+
+Timestamp columns can be declared with either C<datetime> or C<timestamp>.
+
+You will need the L<DateTime::Format::Strptime> module for inflation to work.
+
+For L<DBIx::Class::Storage::DBI::ODBC::Firebird>, this is a noop.
+
+=cut
+
+sub connect_call_datetime_setup {
+ my $self = shift;
+
+ $self->_get_dbh->{ib_time_all} = 'ISO';
}
1;
+
+=head1 CAVEATS
+
+=over 4
+
+=item *
+
+with L</connect_call_use_softcommit>, you will not be able to see changes made
+to data in other processes. If this is an issue, use
+L<disable_sth_caching|DBIx::Class::Storage::DBI/disable_sth_caching> as a
+workaround for the C<no statement executing> errors, this of course adversely
+affects performance.
+
+Alternately, use the L<ODBC|DBIx::Class::Storage::DBI::ODBC::Firebird> driver.
+
+=back
+
+=head1 AUTHOR
+
+See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+# vim:sts=2 sw=2:
projects / dbsrgits/DBIx-Class.git / blobdiff