CakePHP为什么关联为null？
我有几个表和相应的模型，即Staffs、Dpmembers、Subject和Position表。在我的Staff模型中，我在 Department 上创建了hasOne，因为我想从正在工作的Department表中检索数据。
但是，我还创建了更多的hasMany on Dp员、Subject和Position模型，因为我想保存相应的员工记录。
视图newstaff.ctp如下所示
<div class="staff form">
<?php echo $this->Form->create('Staff');?>
<h3><?php echo __('Add a new staff member'); ?></h3>
<?php
echo $this->Form->input('name');
echo $this->Form->input('marital',array('label'=>'Marital status','options'=>array('empty'=>'Choose status','Single'=>'Single','Divorced'=>'Divorced','Married'=>'Married')));
echo $this->Form->input('Children');
echo $this->Form->input('nationality');
echo $this->Form->input('location');
echo $this->Form->input('email');
echo $this->Form->input('phone',array('label'=>'Phone number'));
echo $this->Form->input('nextofkeen',array('label'=>'Next of keen'));
echo $this->Form->input('keenrelation',array('label'=>'Next of keen relationship','options'=>array('Choose option'=>'Choose option','Husband'=>'Husband','Wife'=>'Wife','Guardian'=>'Gaurdian','Child'=>'Child')));
echo $this->Form->input('school');
echo $this->Form->input('award');
echo $this->Form->input('schoolperiod');
echo $this->Form->input('workplace',array('label'=>'Workplace'));
echo $this->Form->input('workposition');
echo $this->Form->input('workperiod');
echo $this->Form->input('dpmember.department.',array('options'=>$department,'empty'=>'Choose Department','label'=>'Department'));
echo $this->Form->input('subject.subjcet',array('options'=>array('Choose option'=>'Choose option','Science'=>'Science','Social Studies'=>'Social studies','English'=>'English','Mathematics'=>'Mathematics'),'label'=>'Subject'));
echo $this->Form->input('position.role',array('options'=>array('Choose option'=>'Choose option','Class teacher'=>'Class teacher','Bursar'=>'Bursar','Cook'=>'Cook'),'label'=>'Position'));
echo $this->Form->submit('Save staff', array('class' => 'btn btn-success', 'title' => 'Click here to add the user') );
?>
<?php echo $this->Form->end(); ?>
</div>我的员工模型Staff.php像这样
<?php
class Staff extends AppModel{
public $hasOne = array(
'Department'=>array(
'className'=>'Department'
));
public $hasMany = array(
'Dpmember'=>array(
'className'=>'Dpmember',
'foreign_key'=>'Dpmember.staff_id'
),
'Subject'=>array(
'className'=>'Subject',
'foreign_key'=>'Subject.staff_id'
),
'Position'=>array(
'className'=>'Position',
'foreign_key'=>'Position.staff_id'
)
);
}
?>在我的StaffsController.php中，我有一个函数newstaff()，它的代码如下
public function newstaff() {
/*Create a select form field for departments */
$department = $this->Staff->Department->find('list',array('fields'=>array('Department.title','Department.title')));
$this->set('department', $department);
/*End creation of a select form field for departments */
if (!empty($this->request->data)) {
debug($this->request->data); // returns all data
debug($this->Staff->Subject->subject); // has returned null
debug($this->Staff->Position->position); // has returned null
debug($this->Staff->Dpmember->departement); // has returned null
}
}我不知道为什么，但出于某种原因，我没有发现。运行debug($this->request->data)将返回预期的数据。
但是，访问单个关联表单字段将返回空值，而不是预期的数据。请帮帮我。
谢谢
回答 2
Stack Overflow用户
发布于 2014-04-12 11:19:28
您似乎在使用CakePHP 3.0语法，而使用CakePHP 2.3。返回的数据是Cake 2中的数组，而不是对象。因此，数据在数组键下面，例如：
$this->request->data['Staff']['Subject']['subject'];
$this->request->data['Staff']['Position']['position'];
$this->request->data['Staff']['Dpmember']['departement'];Stack Overflow用户
发布于 2014-04-12 12:55:21
我想我终于得到了不为空的值。由于我在模型之间创建了关系，或者更确切地说是关联，并且使用CakePHP 2.3，所以正确的方法是
$this->request->data['associateModel']['FormField'];
所以我应该这么做。
$this->request['Subject']['subject']; $this->request['Subject']['position']; $this->request['Subject']['department'];
非常感谢你@Oldskool
https://stackoverflow.com/questions/23027879
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