disable batch ops for firebird ODBC driver
[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 namespace::clean;
12
13 =head1 NAME
14
15 DBIx::Class::Storage::DBI::ODBC::Firebird - Driver for using the Firebird RDBMS
16 through ODBC
17
18 =head1 DESCRIPTION
19
20 Most functionality is provided by
21 L<DBIx::Class::Storage::DBI::Firebird::Common>, see that driver for details.
22
23 To build the ODBC driver for Firebird on Linux for unixODBC, see:
24
25 L<http://www.firebirdnews.org/?p=1324>
26
27 This driver does not suffer from the nested statement handles across commits
28 issue that the L<DBD::InterBase|DBIx::Class::Storage::DBI::InterBase> or the
29 L<DBD::Firebird|DBIx::Class::Storage::DBI::Firebird> based driver does. This
30 makes it more suitable for long running processes such as under L<Catalyst>.
31
32 =cut
33
34 __PACKAGE__->datetime_parser_type ('DBIx::Class::Storage::DBI::ODBC::Firebird::DateTime::Format');
35
36 # batch operations in DBD::ODBC 1.35 do not work with the official ODBC driver
37 sub _init {
38   my $self = shift;
39
40   $self->next::method(@_);
41
42   if ($self->_dbh_get_info('SQL_DRIVER_NAME') eq 'OdbcFb') {
43     $self->_get_dbh->{odbc_disable_array_operations} = 1;
44   }
45 }
46
47 # releasing savepoints doesn't work for some reason, but that shouldn't matter
48 sub _exec_svp_release { 1 }
49
50 sub _exec_svp_rollback {
51   my ($self, $name) = @_;
52
53   try {
54     $self->_dbh->do("ROLLBACK TO SAVEPOINT $name")
55   }
56   catch {
57     # Firebird ODBC driver bug, ignore
58     if (not /Unable to fetch information about the error/) {
59       $self->throw_exception($_);
60     }
61   };
62 }
63
64 package # hide from PAUSE
65   DBIx::Class::Storage::DBI::ODBC::Firebird::DateTime::Format;
66
67 # inherit parse/format date
68 our @ISA = 'DBIx::Class::Storage::DBI::InterBase::DateTime::Format';
69
70 my $timestamp_format = '%Y-%m-%d %H:%M:%S.%4N'; # %F %T
71 my $timestamp_parser;
72
73 sub parse_datetime {
74   shift;
75   require DateTime::Format::Strptime;
76   $timestamp_parser ||= DateTime::Format::Strptime->new(
77     pattern  => $timestamp_format,
78     on_error => 'croak',
79   );
80   return $timestamp_parser->parse_datetime(shift);
81 }
82
83 sub format_datetime {
84   shift;
85   require DateTime::Format::Strptime;
86   $timestamp_parser ||= DateTime::Format::Strptime->new(
87     pattern  => $timestamp_format,
88     on_error => 'croak',
89   );
90   return $timestamp_parser->format_datetime(shift);
91 }
92
93 1;
94
95 =head1 AUTHOR
96
97 See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
98
99 =head1 LICENSE
100
101 You may distribute this code under the same terms as Perl itself.
102
103 =cut
104 # vim:sts=2 sw=2: