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package Rose::DB::Generic;

use strict;

use Rose::DB;

our $VERSION = '0.11';

#
# Object methods
#

sub build_dsn
{
  my($self_or_class, %args) = @_;

  my %info;

  $info{'dbname'} = $args{'db'} || $args{'database'};
  $info{'host'}   = $args{'host'};
  $info{'port'}   = $args{'port'};

  return
    "dbi:$args{'dbi_driver'}:" . 
    join(';', map { "$_=$info{$_}" } grep { defined $info{$_} }
              qw(dbname host port));
}

sub last_insertid_from_sth { }

1;

__END__

=head1 NAME

Rose::DB::Generic - Generic driver class for Rose::DB.

=head1 SYNOPSIS

  use Rose::DB;

  Rose::DB->register_db(
    dsn      => 'dbi:SomeDB:...', # unknown driver
    username => 'devuser',
    password => 'mysecret',
  );

  Rose::DB->default_domain('development');
  Rose::DB->default_type('main');
  ...

  $db = Rose::DB->new; # $db is really a Rose::DB::Generic object
  ...

=head1 DESCRIPTION

This is the subclass that L<Rose::DB> blesses an object into (by default) when the L<driver|Rose::DB::Registry::Entry/driver> specified in the registry entry is has no class name registered in the L<driver class map|Rose::DB/driver_class>.

To maximize the chance that this class will work with an unsupported database, do the following.

=over 4

=item * Use a L<driver|Rose::DB::Registry::Entry/driver> name that exactly matches the L<DBI> "DBD::..." driver name.   Even though L<Rose::DB> L<driver|Rose::DB::Registry::Entry/driver>s are case-insensitive, using the exact spelling and letter case will allow this generic L<Rose::DB> driver to connect successfully.

=item * Specify the DSN explicitly rather than providing the pieces separately (host, database, port, etc.) and then relying upon this class to assemble them into L<DBI> DSN.  This class will assemble a DSN, but it may not be in the format that an unsupported driver expects.

=back

This class inherits from L<Rose::DB>.  See the L<Rose::DB> documentation for information on the inherited methods.

=head1 AUTHOR

John C. Siracusa (siracusa@gmail.com)

=head1 LICENSE

Copyright (c) 2010 by John C. Siracusa.  All rights reserved.  This program is
free software; you can redistribute it and/or modify it under the same terms
as Perl itself.