Another overhaul of transaction/savepoint handling
[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Storage / DBI / ODBC / Firebird.pm
1 package DBIx::Class::Storage::DBI::ODBC::Firebird;
2
3 use strict;
4 use warnings;
5 use base 'DBIx::Class::Storage::DBI::Firebird::Common';
6 use mro 'c3';
7 use Try::Tiny;
8 use namespace::clean;
9
10 =head1 NAME
11
12 DBIx::Class::Storage::DBI::ODBC::Firebird - Driver for using the Firebird RDBMS
13 through ODBC
14
15 =head1 DESCRIPTION
16
17 Most functionality is provided by
18 L<DBIx::Class::Storage::DBI::Firebird::Common>, see that driver for details.
19
20 To build the ODBC driver for Firebird on Linux for unixODBC, see:
21
22 L<http://www.firebirdnews.org/?p=1324>
23
24 This driver does not suffer from the nested statement handles across commits
25 issue that the L<DBD::InterBase|DBIx::Class::Storage::DBI::InterBase> or the
26 L<DBD::Firebird|DBIx::Class::Storage::DBI::Firebird> based driver does. This
27 makes it more suitable for long running processes such as under L<Catalyst>.
28
29 =cut
30
31 __PACKAGE__->datetime_parser_type ('DBIx::Class::Storage::DBI::ODBC::Firebird::DateTime::Format');
32
33 # releasing savepoints doesn't work for some reason, but that shouldn't matter
34 sub _exec_svp_release { 1 }
35
36 sub _exec_svp_rollback {
37   my ($self, $name) = @_;
38
39   try {
40     $self->_dbh->do("ROLLBACK TO SAVEPOINT $name")
41   }
42   catch {
43     # Firebird ODBC driver bug, ignore
44     if (not /Unable to fetch information about the error/) {
45       $self->throw_exception($_);
46     }
47   };
48 }
49
50 package # hide from PAUSE
51   DBIx::Class::Storage::DBI::ODBC::Firebird::DateTime::Format;
52
53 # inherit parse/format date
54 our @ISA = 'DBIx::Class::Storage::DBI::InterBase::DateTime::Format';
55
56 my $timestamp_format = '%Y-%m-%d %H:%M:%S.%4N'; # %F %T
57 my $timestamp_parser;
58
59 sub parse_datetime {
60   shift;
61   require DateTime::Format::Strptime;
62   $timestamp_parser ||= DateTime::Format::Strptime->new(
63     pattern  => $timestamp_format,
64     on_error => 'croak',
65   );
66   return $timestamp_parser->parse_datetime(shift);
67 }
68
69 sub format_datetime {
70   shift;
71   require DateTime::Format::Strptime;
72   $timestamp_parser ||= DateTime::Format::Strptime->new(
73     pattern  => $timestamp_format,
74     on_error => 'croak',
75   );
76   return $timestamp_parser->format_datetime(shift);
77 }
78
79 1;
80
81 =head1 AUTHOR
82
83 See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
84
85 =head1 LICENSE
86
87 You may distribute this code under the same terms as Perl itself.
88
89 =cut
90 # vim:sts=2 sw=2: