Centralize (and privatize) handling of freetds driver/version detection
[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 # releasing savepoints doesn't work for some reason, but that shouldn't matter
37 sub _exec_svp_release { 1 }
38
39 sub _exec_svp_rollback {
40   my ($self, $name) = @_;
41
42   try {
43     $self->_dbh->do("ROLLBACK TO SAVEPOINT $name")
44   }
45   catch {
46     # Firebird ODBC driver bug, ignore
47     if (not /Unable to fetch information about the error/) {
48       $self->throw_exception($_);
49     }
50   };
51 }
52
53 package # hide from PAUSE
54   DBIx::Class::Storage::DBI::ODBC::Firebird::DateTime::Format;
55
56 # inherit parse/format date
57 our @ISA = 'DBIx::Class::Storage::DBI::InterBase::DateTime::Format';
58
59 my $timestamp_format = '%Y-%m-%d %H:%M:%S.%4N'; # %F %T
60 my $timestamp_parser;
61
62 sub parse_datetime {
63   shift;
64   require DateTime::Format::Strptime;
65   $timestamp_parser ||= DateTime::Format::Strptime->new(
66     pattern  => $timestamp_format,
67     on_error => 'croak',
68   );
69   return $timestamp_parser->parse_datetime(shift);
70 }
71
72 sub format_datetime {
73   shift;
74   require DateTime::Format::Strptime;
75   $timestamp_parser ||= DateTime::Format::Strptime->new(
76     pattern  => $timestamp_format,
77     on_error => 'croak',
78   );
79   return $timestamp_parser->format_datetime(shift);
80 }
81
82 1;
83
84 =head1 AUTHOR
85
86 See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
87
88 =head1 LICENSE
89
90 You may distribute this code under the same terms as Perl itself.
91
92 =cut
93 # vim:sts=2 sw=2: