在控制器方法CAKEPHP中访问变量

时间:2014-02-06 04:13:54

标签: cakephp

学生有许多付款和付款属于学生。创建付款时,我必须指明我为哪个学生创建此付款。我希望能够在创建付款时访问学生的ID,以便在add()方法中操作某些内容。

我的控制器中有一个add()方法。这是add()的当前代码。

public function add() {     
    if ($this->request->is('post')) {
        $this->Payment->create();
        if ($this->Payment->save($this->request->data)) {
            $this->Session->setFlash(__('The payment has been saved.'));
            return $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash(__('The payment could not be saved. Please, try again.'));
        }
    }
    $students = $this->Payment->Student->find('list');
    $this->set(compact('students'));
}

付款表格代码

<?php echo $this->Form->create('Payment'); ?>
<fieldset>
    <legend><?php echo __('Add Payment'); ?></legend>
<?php
    echo $this->Form->input('student_id');
    echo $this->Form->input('date');
    echo $this->Form->input('total', array('default' => '0.0'));
    echo $this->Form->input('notes');
?>
</fieldset>
<?php echo $this->Form->end(__('Submit')); ?>

2 个答案:

答案 0 :(得分:2)

您应该能够以

的身份访问该ID
$this->request->data['Payment']['student_id']

这样的事情:

public function add() {     
    if ($this->request->is('post')) {
        $this->Payment->create();
        $student_id = $this->request->data['Payment']['student_id'];
        // Do something with student ID here...
        if ($this->Payment->save($this->request->data)) {
            $this->Session->setFlash(__('The payment has been saved.'));
            return $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash(__('The payment could not be saved. Please, try again.'));
        }
    }
    $students = $this->Payment->Student->find('list');
    $this->set(compact('students'));
}

答案 1 :(得分:1)

我发现对于导航CakePHP的大型多维数组非常有用的一个策略是在开发中经常使用debug()函数。

例如,在add()方法中,我会做类似的事情:

if ($this->request->is('post')) {
    debug($this->request->data);
    die;
}

然后,您将能够在add()方法完成之前查看Student id隐藏的位置并使用它。我不知道您的数组的确切结构,但很可能您应该能够执行以下操作:

$student_id = $this->request->data['Payment']['Student']['id'];

首先检查debug()的输出(在提交表单之后),以确定数组中所需数据的位置。

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