CakePHP virtual fields with two tables -


i have 2 tables in webpage: orders: 

id int(11) not null auto_increment,     created datetime not null, payed datetime default null, primary key (`id`)

and order_items:

id int(11) not null auto_increment, orders_id int(11) not null, amount int(11) not null, price float not null, primary key (`id`)

one order can have many order_items. example records, orders: 

id, created, payed 14, '2013-05-14 22:40:49', null 15, '2013-05-14 22:41:03', null

order_items:

id, orders_id, amount, price 12, 14, 1, 5 13, 15, 6, 5

i need somehow link these tables using model. main thing orders result-set should contain virtual field show order sum of money: sum(amount*price). i'm expecting result of orders table: 

id, created, payed, order_sum 14, '2013-05-14 22:40:49', null, 5 15, '2013-05-14 22:40:49', null, 30

is possible, or limited virtual fields limits? or ideas appreciated :)

i can't believe :) have managed solve "problem".

here solution: have added field order_items table - sum has value amount*price. , here virtual field in order model: 

        public $virtualfields = array(             'amount_price'=>'                 select sum(sum)                  order_items                 (orders_id = `order`.`id`)                 group orders_id'

hope helps, happy baking :)


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