Question

我有2个数据库，比如DB A和DB B，这里是回顾： DB A有：

 - tbl_a
 - tbl_b
 - tbl_c
 - tbl_d

DB B有：

 - tbl_x
 - tbl_y

tbl_d有：

tbl_a.id, tbl_b.id, tbl_c.id, tbl_x.id, tbl_y.name

我想使用级联下拉列表将数据添加到tbl_d中我已成功制作下拉列表，以tbl_a.id, tbl_b.id, tbl_c.id列出tbl_a.id作为父级，但仍无法获取tbl_x.id和tbl_y.name的数据。

尝试重新审阅tbl_x.id列表时会出现问题，因为：

数据库不同但仍在1台服务器中并使用相同的用户名和密码
tbl_x只与tbl_a有关，其中tbl_x.description = tbl_a.name

这是我在Controller中的添加功能：

    public function add() {
    if ($this->request->is('post')) {
        $this->D->create();


        Controller::loadModel('C');
        $data = $this->C->find('first', array(
            'conditions' => array(
                'C.id' => $this->request->data['D']['c_id']
            )
        ));
        $this->request->data['D']['c_name'] = $data['C']['name'];


                    $this->loadModel('X','Y');
                    $x = $this->X->find('list',array(
                        'conditions' => array(
                            'X.x_number' => $this->request->data['D']['x_no']
                        )
                    ));
                    $this->set('X',$x);
                    $y = $this->Y->find('list', array(
                        'conditions' => array(
                            'Y.code' => $this->request->data['D']['y_code']
                        )
                    ));
                    $this->set('Y',$y);

        if ($this->D->save($this->request->data)) {
            $this->Session->setFlash(__('The data has been saved.'), 'success');
            return $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash(__('The data could not be saved. Please, try again.'));
        }
    }
    $a = $this->D->A->find('list');

    $types = array(
            'prepaid' => 'Prepaid',
            'postpaid' => 'Postpaid',
            'hybrid' => 'Hybrid'
    );
    $this->set(compact('a', 'types'));
}

这是我的一些观点

<?php echo $this->Form->create('D'); ?>
<?php
    echo $this->Form->input('a_id', array('empty' => '-- Select  --', 'default' => '-- Select  --'));
    echo $this->Form->input('b_id', array('empty' => '-- Select  --'));
    echo $this->Form->input('c_id', array('empty' => '-- Select  --'));
    echo $this->Form->input('x_no', array('options' => $x,
                'class' => 'span5'));
    echo $this->Form->input('y');
    echo $this->Form->input('type');
?>
<?php echo $this->Form->end(__('Submit')); ?>

任何人都可以告诉我应该怎么做吗？

从cakephp中的多个数据库填充级联下拉列表

0 个答案: