-package # hide from PAUSE
- DBIx::Class::Storage::DBI::ADO;
+package DBIx::Class::Storage::DBI::ADO;
use base 'DBIx::Class::Storage::DBI';
-use Try::Tiny;
+use mro 'c3';
+
+use Sub::Name;
use namespace::clean;
+=head1 NAME
+
+DBIx::Class::Storage::DBI::ADO - Support for L<DBD::ADO>
+
+=head1 DESCRIPTION
+
+This class provides a mechanism for discovering and loading a sub-class
+for a specific ADO backend, as well as some workarounds for L<DBD::ADO>. It
+should be transparent to the user.
+
+=cut
+
sub _rebless {
my $self = shift;
-# check for MSSQL
-# XXX This should be using an OpenSchema method of some sort, but I don't know
-# how.
-# Current version is stolen from Sybase.pm
- try {
- my $dbtype = @{$self->_get_dbh
- ->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})
- }[2];
-
- $dbtype =~ s/\W/_/gi;
- my $subclass = "DBIx::Class::Storage::DBI::ADO::${dbtype}";
- if ($self->load_optional_class($subclass) && !$self->isa($subclass)) {
- bless $self, $subclass;
- $self->_rebless;
- }
+ my $dbtype = $self->_dbh_get_info(17);
+
+ if (not $dbtype) {
+ warn "Unable to determine ADO driver, failling back to generic support.\n";
+ return;
+ }
+
+ $dbtype =~ s/\W/_/gi;
+
+ my $subclass = "DBIx::Class::Storage::DBI::ADO::${dbtype}";
+
+ return if $self->isa($subclass);
+
+ if ($self->load_optional_class($subclass)) {
+ bless $self, $subclass;
+ $self->_rebless;
+ }
+ else {
+ warn "Expected driver '$subclass' not found, using generic support. " .
+ "Please file an RT.\n";
+ }
+}
+
+# cleanup some warnings from DBD::ADO
+# RT#65563, not fixed as of DBD::ADO v2.98
+sub _dbh_get_info {
+ my $self = shift;
+
+ my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
+
+ local $SIG{__WARN__} = sub {
+ $warn_handler->(@_)
+ unless $_[0] =~ m{^Missing argument in sprintf at \S+/ADO/GetInfo\.pm};
};
+
+ $self->next::method(@_);
+}
+
+# Monkeypatch out the horrible warnings during global destruction.
+# A patch to DBD::ADO has been submitted as well.
+# https://rt.cpan.org/Ticket/Display.html?id=65563
+sub _init {
+ no warnings 'redefine';
+ require DBD::ADO;
+
+ if ($DBD::ADO::VERSION <= 2.98) {
+ my $disconnect = *DBD::ADO::db::disconnect{CODE};
+
+ *DBD::ADO::db::disconnect = subname 'DBD::ADO::db::disconnect' => sub {
+ my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
+ local $SIG{__WARN__} = sub {
+ $warn_handler->(@_)
+ unless $_[0] =~ /Not a Win32::OLE object|uninitialized value/;
+ };
+ $disconnect->(@_);
+ };
+ }
}
# Here I was just experimenting with ADO cursor types, left in as a comment in
#}
1;
+
+=head1 AUTHOR
+
+See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+# vim:sts=2 sw=2: