=head1 NAME

Rose::DBx::Role::NestTransaction - Nested transactions support for Rose::DB

=head1 SYNOPSIS

   # Define yout DB class
   package MyDB;
   use base 'Rose::DB';

   use Role::Tiny::With;
   with 'Rose::DBx::Role::NestTransaction';

   # Somewhere in your code
   MyDB->new_or_cached->nest_transaction(sub {
       User->new( name => 'name' )->save();
   });

=head1 DESCRIPTION

This module provides a role for Rose::DB. Just consume the role in your Rose::DB subclass

=head1 METHODS

=head2 nest_transaction

These methods behaves like do_transaction but it repects existing transactions and do not start new one if the transaction already started. On error it revert transaction and rethrow error

=head1 AUTHOR

Viktor Turskyi, C<< <koorchik at cpan.org> >>

=head1 BUGS

Please report any bugs or feature requests to Github L<https://github.com/koorchik/Rose-DBx-Role-NestTransaction>

=head1 LICENSE AND COPYRIGHT

Copyright 2012 Viktor Turskyi.

This program is free software; you can redistribute it and/or modify it
under the terms of either: the GNU General Public License as published
by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.

=cut

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