Explain please how to use WITH() in Kohana ORM -

$contract = orm::factory('contract', 1); 

i can shipper this: $contract->shipper; can owners this: $contract->owners->find_all();

but cant use

$contract->owners , preload them orm::factory('contract', 1)->with("owners"); 

so why need this, cant understand does, , how works ?

unfortunately ->with() works has_one or belongs_to relationships, not has_many. way expand many<->many relations ->find_all()

from with method description:

binds one-to-one object model.

you can check source code with function here: https://github.com/kohana/orm/blob/3.3/master/classes/kohana/orm.php#l901