1 files changed, 101 insertions, 0 deletions
diff --git a/DataSource/Driver.pm b/DataSource/Driver.pm
new file mode 100644
index 0000000..d848fa3
--- /dev/null
+++ b/DataSource/Driver.pm
@@ -0,0 +1,101 @@
+package DBIx::DataSource::Driver;
+
+use strict;
+use vars qw($VERSION);
+use DBI;
+
+$VERSION = '0.01';
+
+=head1 NAME
+
+DBIx::DataSource::Driver - Driver Writer's Guide and base class
+
+=head1 SYNOPSIS
+
+  perldoc DBIx::DataSource::Driver;
+
+  or
+
+  package DBIx::DataSource::FooBase;
+  use DBIx::DataSource::Driver;
+  @ISA = qw( DBIx::DataSource::Driver );
+
+=head1 DESCRIPTION
+
+To implement a driver for your database:
+
+1) If you can create a database with an SQL command through DBI/DBD, simply
+   provide a parse_dsn class method which returns a list consisting of the
+   *actual* data source to use in DBI->connect and the SQL.
+
+       package DBIx::DataSource::NewDatabase;
+       use DBIx::DataSource::Driver;
+       @ISA = qw( DBIx::DataSource::Driver );
+
+       sub parse_dsn {
+         my( $class, $action, $dsn ) = @_;
+
+         # $action is `create' or `drop'
+         # for example, if you parse parse $dsn for $database,
+         # $sql = "$action $database";
+
+         # you can die on errors - it'll be caught
+
+         ( $new_dsn, $sql );
+       }
+
+2) Otherwise, you'll need to write B<create_database> and B<drop_database>
+   class methods.
+
+       package DBIx::DataSource::NewDatabase;
+
+       sub create_database {
+         my( $class, $dsn, $user, $pass ) = @_;
+
+         # for success, return true
+         # for failure, die (it'll be caught)
+       }
+
+       sub drop_database {
+         my( $class, $dsn, $user, $pass ) = @_;
+
+         # for success, return true
+         # for failure, die (it'll be caught)
+       }
+
+=cut
+
+sub create_database { shift->_sql('create', @_) };
+sub drop_database   { shift->_sql('drop',   @_) };
+
+sub _sql {
+  my( $class, $action, $dsn, $user, $pass ) = @_;
+  my( $new_dsn, $sql ) = $class->parse_dsn($action, $dsn);
+  my $dbh = DBI->connect( $new_dsn, $user, $pass ) or die $DBI::errstr;
+#  $dbh->do($sql) or die $dbh->errstr;
+# silly DBI.  implicit DESTROY yummy.
+  $dbh->do($sql) or do { my $err = $dbh->errstr; $dbh->disconnect; die $err; };
+  $dbh->disconnect or die $dbh->errstr;
+}
+
+=head1 AUTHOR
+
+Ivan Kohler <ivan-dbix-datasource@420.am>
+
+=head1 COPYRIGHT
+
+Copyright (c) 2000 Ivan Kohler
+Copyright (c) 2000 Mail Abuse Prevention System LLC
+All rights reserved.
+This program is free software; you can redistribute it and/or modify it under
+the same terms as Perl itself.
+
+=head1 BUGS
+
+=head1 SEE ALSO
+
+L<DBIx::DataSource>, L<DBIx::DataSource::mysql>, L<DBIx::DataSource::Pg>, L<DBI>
+
+=cut 
+
+1;