Question

我在cakephp工作并且有Lessons Belongsto Kid关系和Kid hasMany Lessons关系。该文件位于LessonsController中。我想按照课程查找与本课程相关的孩子，并更改与paid_lessons相关联的Kid变量。虽然我们已加载模型，但此行$this->Lesson->Kid->set('paid_lessons','5');由于某种原因不起作用。有什么建议吗？

public function lessoncompleted($id = null) {
    $this->loadModel('Kid');
    if (!$this->Lesson->exists($id)) {
        throw new NotFoundException(__('Invalid task'));
    }
        $this->Lesson->id = $id;

        $this->Lesson->set('completed', 'yes');
        $this->Lesson->Kid->set('paid_lessons','5');

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

}

Answer 1

因为$ this-＆gt; Lesson-＆gt; save（$ this-＆gt; request-＆gt; data）会在保存过程中调用$ this-＆gt; set（$ data），不会覆盖$ this-＆gt ;课程 - ＆gt;设置（＆＃39;已完成＆＃39;，＆＃39;是＆＃39;）; ？

Answer 2

您没有使用set correctly实际上，您不需要它，因为您在控制器中执行此操作并假设您要为模型保存数据Lesson和Kid我会这样做

//Assuming that Lesson hasMany Kid
public function lessoncompleted($id = null) {
    //$this->loadModel('Kid'); No need to load Kid because it is already loaded by Lesson
    if (!$this->Lesson->exists($id)) {
        throw new NotFoundException(__('Invalid task'));
    }
    //$this->Lesson->id = $id; //not necessary because $this->request->data['Lesson']['id'] should contain the ID

    //$this->Lesson->set('completed', 'yes'); //no, see the next line
    $this->request->data['Lesson']['completed'] = 'yes';

    //$this->Lesson->Kid->set('paid_lessons','5'); //No, see next line
    $this->request->data['Lesson']['Kid'][0]['paid_lessons'] = 5;

    //if ($this->Lesson->save($this->request->data)) { //use saveAssociated
    if ($this->Lesson->saveAssociated($this->request->data)) { 
        $this->Session->setFlash(__('The task has been updated.'));
        return $this->redirect(array('action' => 'index'));
    } else {
        $this->Session->setFlash(__('The task could not be saved. Please, try again.'));
    }
}

如果此代码不起作用，我需要检查$ this-＆gt; request-＆gt;数据的内容，如果需要，请将其粘贴到此处，我也很高兴阅读您所拥有的关联课程和孩子模型

遵循模型并更新cakephp中的数据

2 个答案: