Sort in cakephp other model - php

Question

I have multiple tables associated with each other:
Messages
Message details
Message details has the fields id, Message_id, created_date and message.
I want to sort messages on the message details created_date.
How can I do that?
$messages = $this->Message->find('all', array(
'conditions' => array('Message.status'=> 'progress')
));
// What do I do now to sort it on message_details created time?
class MessageDetail extends AppModel {
//public $hasMany=array('MessageDetail');
//$belongsTo = array('Message');
public $belongsTo = array(
'Message' => array(
'className' => 'Message',
'foreignKey' => 'message_id'
)
);
}
class Message extends AppModel {
public $hasMany=array('MessageDetail');
}

Answer 1

Can You pls try this code,You need Descending order put DESC instead of ASC
$messages = $this->Message->find('all', array(
'conditions' => array('Message.status'=> 'progress'),
'order' => array('MessageDetails.created_date ASC')
));

Answer 2

You can simple pass order, and mention which field to sort, see below:
$messages = $this->Message->find('all', array(
'conditions' => array('Message.status'=> 'progress'),
'ORDER' => 'MessageDetail.created_date ASC'
));
UPDATE
You Message.php Model will look like:
class Message extends AppModel {
public $hasMany = array(
'MessageDetail' => array(
'className' => 'MessageDetail',
'foreignKey' => 'message_id',
'order' => 'MessageDetail.created_date DESC'
),
);
}
and MessageDetail.php Model will be:
class MessageDetail extends AppModel {
public $belongsTo = array(
'Message' => array(
'className' => 'Message',
'foreignKey' => 'message_id'
)
);
}