Question

我想生成一个与habtm关系的列表（下拉列表）。例如，我有一个名为“users”的表，另一个名为“vehicles”和“users_vehicles”。

我想要的是将车辆分配给“x”用户并将其放入下拉列表中。我怎样才能做到这一点？


class User extends AppModel {

   var $hasAndBelongsToMany = array('Vehicle');
}

Answer 1

这是一种方式，可能还有其他几种方式。

$result = $this->User->Vehicle->find('all', array(
    'recursive' => -1,
    'conditions' => array('Ownership.user_id' => 66),
    'fields' => array('Vehicle.*','Ownership.*'),
    'joins' => array(
        array(
            'table' => 'users_vehicles',
            'alias' => 'Ownership',
            'type' => 'LEFT',
            'foreignKey' => false,
            'conditions'=> 'Vehicle.id = Ownership.vehicle_id'
        )
    )
));
$list = Set::combine($result,'{n}.Vehicle.id','{n}.Vehicle.name');

Answer 2

<code>
$options['conditions']['Ownership.vehicle_id'] = $x;
$options['joins'] = array(
                           array(
                                  'table' => 'ownership',
                                             'alias' => 'Ownership',
                                             'type'  => 'Left',
                                             'conditions' => 'Vehicle.id = Ownership.vehicle_id'
                                            )
                                    );
$this->set('vehicles', $this->Vehicle->find('list', $options));
</code>

如何在CakePHP中找到HABTM相关记录（'list'）下拉列表？

2 个答案: