Question

我从数据库中获取所有用户时使用Symfony 2收到此错误：

 Variable "name" does not exist in UsersListBundle:Default:index.html.twig at line 1
500 Internal Server Error - Twig_Error_Runtime

我的代码：index.html.twig

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Symfony 2 Example</title>
<link href="/bundles/userslist/css/main.css" rel="stylesheet" type="text/css" media="all" />
</head>
<body>
<div id="container">
    <h1>User list page</h1>
    <div id="body">
        <p><a href="/">Click here</a> to back to the Homepage</p>
        <p><a href="users/add">ADD NEW USER</a></p>
        <p>All users in the users table using: <br />
        <strong>$repository = $this->getDoctrine()->getRepository('UsersListBundle:Users');<br />
        $users = $repository->findAll();</strong></p>
        {% if users is not empty %)
            <table cellpadding="4">
                <tr>
                    <td><strong>ID</strong></td>
                    <td><strong>Name</strong></td>
                    <td><strong>Email</strong></td>
                    <td><strong>Phone</strong></td>
                </tr>
                {% for user in users %}
                    <tr>
                        <td>{{ user.id }}</td>
                        <td>{{ user.name }}</td>
                        <td>{{ user.email }}</td>
                        <td>{{ user.phone }}</td>
                        <td><a href="users/edit/{{ user.id }}">Edit</a></td>
                        <td><a href="users/delete/{{ user.id }}">Delete</a></td>
                    </tr>
                {% endfor %}
            </table>
        {% else %}
            <p>No users in the database</p>
        {% endif %}
        <p>Get ID 1 in the example table using: <br />
        <strong>$user = $this->getDoctrine()->getRepository('UsersListBundle:Users')->find(1);</strong></p>
    </div>
</div>
</body>
</html>

这是我的控制器代码：

/**
     * @Route("/users")
     * @Template()
     */
    public function indexAction()
    {
        $repository = $this->getDoctrine()
            ->getRepository('UsersListBundle:Users');

        $users = $repository->findAll();

        return array('users' => $users);
    }

我已经阅读了一些关于此错误的文章。他们说一个隐藏的角色。点击Alt Gr + Space时会出现此字符。现在我不知道如何删除该角色。我尝试重新输入相同的代码，但没有运气。

这是我的用户实体：

<?php
// src/Users/Bundle/ListBundle/Entity/Users.php

namespace Users\Bundle\ListBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="users")
 */
class Users
{
    /**
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ORM\Column(type="string", length=255)
     */
    protected $name;

    /**
     * @ORM\Column(type="string", length=200)
     */
    protected $email;

    /**
     * @ORM\Column(type="string", length=60)
     */
    protected $phone;

    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set name
     *
     * @param string $name
     * @return Users
     */
    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

    /**
     * Get name
     *
     * @return string 
     */
    public function getName()
    {
        return $this->name;
    }

    /**
     * Set email
     *
     * @param string $email
     * @return Users
     */
    public function setEmail($email)
    {
        $this->email = $email;

        return $this;
    }

    /**
     * Get email
     *
     * @return string 
     */
    public function getEmail()
    {
        return $this->email;
    }

    /**
     * Set phone
     *
     * @param string $phone
     * @return Users
     */
    public function setPhone($phone)
    {
        $this->phone = $phone;

        return $this;
    }

    /**
     * Get phone
     *
     * @return string 
     */
    public function getPhone()
    {
        return $this->phone;
    }
}

这是我的UserController：

<?php

namespace Users\Bundle\ListBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Users\Bundle\ListBundle\Entity\Users;
use Symfony\Component\HttpFoundation\Request;

class UsersController extends Controller
{
    /**
     * @Route("/users")
     * @Template()
     */
    public function indexAction()
    {
        $repository = $this->getDoctrine()
            ->getRepository('UsersListBundle:Users');

        $users = $repository->findAll();

        return array('users' => $users);
    }

    /**
     * @Route("/users/add")
     * @Template()
     */
    public function addAction(Request $request)
    {

        $user= new Users();
        $user->setName('Name');
        $user->setEmail('Email');
        $user->setPhone('Phone');

        $form=$this->createFormBuilder($user)
            ->add('name')
            ->add('email')
            ->add('phone')
            ->getForm();

        if ($request->getMethod()=='POST'){
            $form->bind($request);
            if ($form->isValid()){
                $em = $this->getDoctrine()->getManager();
                $em->persist($user);
                $em->flush();
                return $this->redirect($this->generateUrl('users_list_users_index'), 301);
            }
        } else {
            return $this->render('UsersListBundle:Users:add.html.twig',array(
                'form'=>$form->createView(),
            ));
        }
    }

    /**
     * @Route("/users/edit/{id}", requirements={"id" = "\d+"}, defaults={"id" = 0})
     * @Template()
     */
    public function editAction($id, Request $request)
    {
        if ($id == 0){ // no user id entered
            return $this->redirect($this->generateUrl('users_list_users_index'), 301);
        }
        $user = $this->getDoctrine()
            ->getRepository('UsersListBundle:Users')
            ->find($id);

        if (!$user) {// no user in the system
            throw $this->createNotFoundException(
                'No user found for id '.$id
            );
        }

        $form=$this->createFormBuilder($user)
            ->add('name')
            ->add('email')
            ->add('phone')
            ->getForm();

        if ($request->getMethod()=='POST'){
            $form->bind($request);
            if ($form->isValid()){
                $em = $this->getDoctrine()->getManager();
                $em->persist($user);
                $em->flush();
                return $this->redirect($this->generateUrl('users_list_users_index'), 301);
            }
        } else {
            return $this->render('UsersListBundle:Users:edit.html.twig',array(
                'form'=>$form->createView(),
            ));
        }

        return array('name' => $id);
    }

    /**
     * @Route("/users/delete/{id}", requirements={"id" = "\d+"}, defaults={"id" = 0})
     * @Template()
     */
    public function deleteAction($id)
    {
        if ($id == 0){ // no user id entered
            return $this->redirect($this->generateUrl('users_list_users_index'), 301);
        }

        $em = $this->getDoctrine()->getManager();
        $user = $em->getRepository('UsersListBundle:Users')->find($id);

        if (!$user) { // no user in the system
            throw $this->createNotFoundException(
                'No user found for id '.$id
            );
        } else {
            $em->remove($user);
            $em->flush();
            return $this->redirect($this->generateUrl('users_list_users_index'), 301);
        }
    }
}

Answer 1

这一行有一个语法问题：

{% if users is not empty %)

将％} 替换为％}

Answer 2

也许没有这样的字段名称。这是第1行的错误：

   <!DOCTYPE html>

或在：

   <td>{{ user.name }}</td>

尝试删除第二个并检查是否仍有错误。

你能告诉我用户的twig转储或UsersListBundle：用户实体

  .....
  {% if users is not empty %)
  {% dump(users) %}
  .....

Answer 3

如果您在数据库中添加或重命名了“名称”字段，则必须重新生成您的实体。将“用户”实体添加到您的问题将有助于您获得更快的响应。

UsersListBundle中不存在变量“name”：默认值：第1行的index.html.twig - Symfony 2

3 个答案: