如何一次编辑多条记录

Question

我想知道是否有人知道如何通过一种表格编辑编辑多条记录。此链接显示我正在寻找的确切内容：https://editor.datatables.net/examples/simple/multiRow.html。我已经创建了一个ajax调用，将我选择的记录的ID发送到我创建的editMultipleRecordsAction方法。从那里我迷路了。任何提示都将非常感谢（Symfony已经有这样的东西了吗？我应该为此重建一个新的FormType吗？我应该使用相同的FormType，但添加侦听器吗？我应该创建一个新的实体，其中我的id属性将是一个数组？ ...）。顺便说一下，我只有一个实体。

Answer 1

我认为最简单的方法来实现，这将是：

• 遍历$request->request->get('data');
• 从DB
• 获取当前实体创建当前实体的新形式
• 手动调用Form::submit()为每种形式
• $form->isValid()验证（每次迭代）
• $em->flush()循环后有理论计算设定的改变并保存到数据库

下面是一个未经测试的例子

public function editMultipleRecordsAction (Request $request) 
{ 
    // First we select what to do based on 'action' field (add/edit/delete) 
    switch ($request->request->get('action')) { 
     case 'edit': 

      // Fetch the payload 
      $data = $request->request->get('data'); 

      // Fetch all edited entities 
      $entities = $this->getDoctrine()->getRepository('AppBundle:Entity') 
       ->findBy(['id' => array_keys($data)]); 

      // Build a map of $id => $entity to use later 
      $map = []; 
      foreach ($entities as $entity) { 
       $map[$entity->getId()] = $entity; 
      } 

      if (array_keys($data) !== array_keys($map)) { 
       // Something went wrong, not all requested entities were fetched 
      } 

      // Loop over each edited entity 
      foreach ($data as $id => $form_data) { 
       // Create a form for the current entity (you can use createForm() as well, same thing) 
       $form = $this->createFormBuilder($map[$id]) 
        // Notice that the id field is not part of the form 
        ->add('name') 
        ->add('position') 
        // ->add(...) 
        ->getForm(); 

       // Manually submit the data for this form 
       $form->submit($form_data); 

       if (!$form->isValid()) { 
        // Validation error, do something... 
       } 
      } 

      // Now we have iterated over each entity and updated it using Symfony's Form component 
      // The only thing remaining is to tell Doctrine to calculate the change set and save it to the database 
      $this->getDoctrine()->getManager()->flush(); 

      // DataTables require that you return a JSON version of updated entities 
      // This will be different depending on what you use to serialize. 
      // The following example applies if you are using FOS Rest Bundle: 
      return $this->handleView($this->view(['data' => $entities])); 
     break; 

     case 'create': 
      // ... 
     break; 

     case 'remove': 
      // ... 
     break; 

     default: 
      throw new BadRequestHttpException(); 
    } 
}