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1 | package DBIx::Class::Storage::DBI::ADO; |
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2 | |
3 | use base 'DBIx::Class::Storage::DBI'; |
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4 | use mro 'c3'; |
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5 | |
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6 | =head1 NAME |
7 | |
8 | DBIx::Class::Storage::DBI::ADO - Support for L<DBD::ADO> |
9 | |
10 | =head1 DESCRIPTION |
11 | |
12 | This class provides a mechanism for discovering and loading a sub-class |
13 | for a specific ADO backend, as well as some workarounds for L<DBD::ADO>. It |
14 | should be transparent to the user. |
15 | |
16 | =cut |
17 | |
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18 | sub _rebless { |
19 | my $self = shift; |
20 | |
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21 | my $dbtype = $self->_dbh_get_info(17); |
22 | |
23 | if (not $dbtype) { |
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24 | warn "Unable to determine ADO driver, failling back to generic support.\n"; |
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25 | return; |
26 | } |
27 | |
28 | $dbtype =~ s/\W/_/gi; |
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29 | |
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30 | my $subclass = "DBIx::Class::Storage::DBI::ADO::${dbtype}"; |
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31 | |
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32 | if ($self->load_optional_class($subclass) && !$self->isa($subclass)) { |
33 | bless $self, $subclass; |
34 | $self->_rebless; |
35 | } |
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36 | else { |
37 | warn "Expected driver '$subclass' not found, using generic support. " . |
38 | "Please file an RT.\n"; |
39 | } |
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40 | } |
41 | |
42 | # cleanup some warnings from DBD::ADO |
43 | # RT#65563, not fixed as of DBD::ADO v2.98 |
44 | sub _dbh_get_info { |
45 | my $self = shift; |
46 | |
47 | my $warn_handler = $SIG{__WARN__} || sub { warn @_ }; |
48 | |
49 | local $SIG{__WARN__} = sub { |
50 | $warn_handler->(@_) |
51 | unless $_[0] =~ m{^Missing argument in sprintf at \S+/ADO/GetInfo\.pm}; |
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52 | }; |
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53 | |
54 | $self->next::method(@_); |
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55 | } |
56 | |
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57 | # Here I was just experimenting with ADO cursor types, left in as a comment in |
58 | # case you want to as well. See the DBD::ADO docs. |
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59 | #sub _dbh_sth { |
60 | # my ($self, $dbh, $sql) = @_; |
61 | # |
62 | # my $sth = $self->disable_sth_caching |
63 | # ? $dbh->prepare($sql, { CursorType => 'adOpenStatic' }) |
64 | # : $dbh->prepare_cached($sql, { CursorType => 'adOpenStatic' }, 3); |
65 | # |
66 | # $self->throw_exception($dbh->errstr) if !$sth; |
67 | # |
68 | # $sth; |
69 | #} |
70 | |
71 | 1; |
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72 | |
73 | =head1 AUTHOR |
74 | |
75 | See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>. |
76 | |
77 | =head1 LICENSE |
78 | |
79 | You may distribute this code under the same terms as Perl itself. |
80 | |
81 | =cut |
82 | # vim:sts=2 sw=2: |