Protect DBIC as best we can from the failure mode in 7cb35852
[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 qw/
6   DBIx::Class::Storage::DBI::ODBC
7   DBIx::Class::Storage::DBI::Firebird::Common
8 /;
9 use mro 'c3';
10 use Try::Tiny;
11 use DBIx::Class::_Util 'dbic_internal_try';
12 use namespace::clean;
13
14 =head1 NAME
15
16 DBIx::Class::Storage::DBI::ODBC::Firebird - Driver for using the Firebird RDBMS
17 through ODBC
18
19 =head1 DESCRIPTION
20
21 Most functionality is provided by
22 L<DBIx::Class::Storage::DBI::Firebird::Common>, see that driver for details.
23
24 To build the ODBC driver for Firebird on Linux for unixODBC, see:
25
26 L<http://www.firebirdnews.org/?p=1324>
27
28 This driver does not suffer from the nested statement handles across commits
29 issue that the L<DBD::InterBase|DBIx::Class::Storage::DBI::InterBase> or the
30 L<DBD::Firebird|DBIx::Class::Storage::DBI::Firebird> based driver does. This
31 makes it more suitable for long running processes such as under L<Catalyst>.
32
33 =cut
34
35 # batch operations in DBD::ODBC 1.35 do not work with the official ODBC driver
36 sub _run_connection_actions {
37   my $self = shift;
38
39   if ($self->_dbh_get_info('SQL_DRIVER_NAME') eq 'OdbcFb') {
40     $self->_disable_odbc_array_ops;
41   }
42
43   return $self->next::method(@_);
44 }
45
46 # releasing savepoints doesn't work for some reason, but that shouldn't matter
47 sub _exec_svp_release { 1 }
48
49 sub _exec_svp_rollback {
50   my ($self, $name) = @_;
51
52   dbic_internal_try {
53     $self->_dbh->do("ROLLBACK TO SAVEPOINT $name")
54   }
55   catch {
56     # Firebird ODBC driver bug, ignore
57     if (not /Unable to fetch information about the error/) {
58       $self->throw_exception($_);
59     }
60   };
61 }
62
63 =head1 FURTHER QUESTIONS?
64
65 Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
66
67 =head1 COPYRIGHT AND LICENSE
68
69 This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE>
70 by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can
71 redistribute it and/or modify it under the same terms as the
72 L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>.
73
74
75 =cut
76
77 # vim:sts=2 sw=2:
78
79 1;