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1 | package DBIx::Class::Storage::DBI::Sybase; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use base qw/DBIx::Class::Storage::DBI/; |
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7 | |
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8 | use Carp::Clan qw/^DBIx::Class/; |
9 | |
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10 | sub _rebless { |
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11 | my $self = shift; |
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12 | |
13 | if (ref($self) eq 'DBIx::Class::Storage::DBI::Sybase') { |
14 | my $dbtype = eval { |
15 | @{$self->dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2] |
16 | } || ''; |
17 | |
18 | my $exception = $@; |
19 | $dbtype =~ s/\W/_/gi; |
20 | my $subclass = "DBIx::Class::Storage::DBI::Sybase::${dbtype}"; |
21 | |
22 | if (!$exception && $dbtype && $self->load_optional_class($subclass)) { |
23 | bless $self, $subclass; |
24 | $self->_rebless; |
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25 | } elsif (not $self->dbh->{syb_dynamic_supported}) { |
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26 | bless $self, 'DBIx::Class::Storage:DBI::Sybase::NoBindVars'; |
27 | $self->_rebless; |
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28 | } |
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29 | } |
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30 | } |
31 | |
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32 | { |
33 | my $old_dbd_warned = 0; |
34 | |
35 | sub _populate_dbh { |
36 | my $self = shift; |
37 | $self->next::method(@_); |
38 | my $dbh = $self->_dbh; |
39 | |
40 | if ($dbh->can('syb_date_fmt')) { |
41 | $dbh->syb_date_fmt('ISO_strict'); |
42 | } elsif (not $old_dbd_warned) { |
43 | carp "Your DBD::Sybase is too old to support ". |
44 | "DBIx::Class::InflateColumn::DateTime, please upgrade!"; |
45 | $old_dbd_warned = 1; |
46 | } |
47 | |
48 | $dbh->do('set dateformat mdy'); |
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49 | |
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50 | 1; |
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51 | } |
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52 | } |
53 | |
54 | sub _dbh_last_insert_id { |
55 | my ($self, $dbh, $source, $col) = @_; |
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56 | |
57 | # sorry, there's no other way! |
58 | my $sth = $dbh->prepare_cached("select max($col) from ".$source->from); |
59 | return ($dbh->selectrow_array($sth))[0]; |
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60 | } |
61 | |
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62 | sub datetime_parser_type { "DBIx::Class::Storage::DBI::Sybase::DateTime" } |
63 | |
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64 | 1; |
65 | |
66 | =head1 NAME |
67 | |
68 | DBIx::Class::Storage::DBI::Sybase - Storage::DBI subclass for Sybase |
69 | |
70 | =head1 SYNOPSIS |
71 | |
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72 | This subclass supports L<DBD::Sybase> for real Sybase databases. If |
73 | you are using an MSSQL database via L<DBD::Sybase>, see |
74 | L<DBIx::Class::Storage::DBI::Sybase::MSSQL>. |
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75 | |
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76 | =head1 CAVEATS |
77 | |
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78 | If your version of Sybase does not support placeholders, then this storage |
79 | driver uses L<DBIx::Class::Storage::DBI::NoBindVars> as a base, |
80 | |
81 | In which case, bind variables will be interpolated (properly quoted of course) |
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82 | into the SQL query itself, without using bind placeholders. |
83 | |
84 | More importantly this means that caching of prepared statements is explicitly |
85 | disabled, as the interpolation renders it useless. |
86 | |
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87 | If your version of Sybase B<DOES> support placeholders (check |
88 | C<<$dbh->{syb_dynamic_supported}>> then unfortunately there's no way to get the |
89 | C<last_insert_id> without doing a C<select max(col)>. |
90 | |
91 | But your queries will be cached. |
92 | |
93 | =head1 DATES |
94 | |
95 | On connection C<syb_date_fmt> is set to C<ISO_strict>, e.g.: |
96 | C<2004-08-21T14:36:48.080Z> and C<dateformat> is set to C<mdy>, e.g.: |
97 | C<08/13/1979>. |
98 | |
99 | You will need the L<DateTime::Format::Strptime> module if you are going to use |
100 | L<DBIx::Class::InflateColumn::DateTime>. |
101 | |
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102 | =head1 AUTHORS |
103 | |
104 | Brandon L Black <blblack@gmail.com> |
105 | |
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106 | Justin Hunter <justin.d.hunter@gmail.com> |
107 | |
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108 | Rafael Kitover <rkitover@cpan.org> |
109 | |
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110 | =head1 LICENSE |
111 | |
112 | You may distribute this code under the same terms as Perl itself. |
113 | |
114 | =cut |
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115 | # vim:sts=2 sw=2: |