我正在使用fosrest和willdurand/hateoas捆绑包。我遵循的例子https://github.com/willdurand/hateoas#configuring-links
，但是JSON响应上没有"链接"字段。
/**
* Users
*
* @ORMTable(name="users")
* @ORMEntity
* @SerializerExclusionPolicy("ALL")
* @HateoasRelation("self", href="expr('/users' ~ object.getId())")
*/
class User
{
/**
* @var integer
*
* @ORMColumn(name="id", type="integer")
* @ORMId
* @ORMGeneratedValue(strategy="IDENTITY")
* @SerializerGroups({"Default", "Deserialize"})
* @SerializerExpose()
*/
private $id;
/**
* @var string
*
* @ORMColumn(name="name", type="string", length=30)
* @AssertNotBlank()
* @AssertLength(max="30", min="5")
* @SerializerGroups({"Default", "Deserialize"})
* @SerializerExpose()
*/
private $name;
/**
* @var string
*
* @ORMColumn(name="email", type="string", length=30)
* @AssertNotBlank()
* @AssertEmail()
* @AssertLength(max="30")
* @SerializerGroups({"Default", "Deserialize"})
* @SerializerExpose()
*/
private $email;
/**
* @var string
*
* @ORMColumn(name="username", type="string", length=15)
* @AssertNotBlank()
* @AssertLength(max="15", min="3")
* @SerializerGroups({"Default", "Deserialize"})
* @SerializerExpose()
*/
private $username;
/**
* @var string
*
* @ORMColumn(name="password", type="string", length=32)
* @AssertNotBlank()
*/
private $password;
/**
* @var string
*
* @ORMColumn(name="active", type="boolean", length=32)
* @SerializerGroups({"Default", "Deserialize"})
* @SerializerExpose()
*/
private $active = true;
/**
* @var ArrayCollection
* @ORMManyToOne(targetEntity="AppBundleEntityRole", inversedBy="user")
* @SerializerExpose()
*/
private $roles;
public function __construct()
{
$this->roles = new ArrayCollection();
}
/**
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* @param string $name
*/
public function setName($name)
{
$this->name = $name;
}
/**
* @return string
*/
public function getEmail()
{
return $this->email;
}
/**
* @param string $email
*/
public function setEmail($email)
{
$this->email = $email;
}
/**
* @return string
*/
public function getUsername()
{
return $this->username;
}
/**
* @param string $username
*/
public function setUsername($username)
{
$this->username = $username;
}
/**
* @return string
*/
public function getPassword()
{
return $this->password;
}
/**
* @param string $password
*/
public function setPassword($password)
{
$this->password = $password;
}
/**
* @return string
*/
public function getActive()
{
return $this->active;
}
/**
* @param string $active
*/
public function setActive($active)
{
$this->active = $active;
}
/**
* @return Collection
*/
public function getRoles()
{
return $this->roles;
}
/**
* @param ArrayCollection $roles
*/
public function setRoles($roles)
{
$this->roles = $roles;
}
}
主要是我要显示一个指向角色实体的链接，但也许更容易找出是什么原因引起的，即使 self 链接，然后再进行。
这是配置
fos_rest:
routing_loader:
default_format: json
include_format: false
view:
view_response_listener: 'force'
body_converter:
enabled: true
validate: true
validation_errors_argument: validationErrors
param_fetcher_listener: true
exception:
enabled: true
exception_controller: 'AppBundleControllerExceptionController::showAction'
serializer:
groups: ['Default']
sensio_framework_extra:
view:
annotations: true
request:
converters: true
此配置在所有端点都可以正常工作的含义很好，除了没有链接。
在这一点
[
{
"id": 1,
"name": "Test name",
"email": "test@email.com",
"username": "toskadv",
"active": true
},
{
"id": 2,
"name": "Test name",
"email": "test@email.com",
"username": "toskadv",
"active": true
},
{
"id": 3,
"name": "Test name",
"email": "test@email.com",
"username": "toskadv",
"active": true,
"roles": {
"id": 1,
"name": "ROLE_USER"
}
}
]
还有控制器数据。
/**
* Class UsersController
* @package AppBundleController
*/
class UsersController extends AbstractController
{
use ControllerTrait;
/**
* @RestView()
*/
public function getUsersAction()
{
$users = $this->getDoctrine()->getRepository('AppBundle:User')->findAll();
return $users;
}
/**
* @param User $user
* @param ConstraintViolationListInterface $validationErrors
*
* @RestView(statusCode=201)
* @ParamConverter("user", converter="fos_rest.request_body")
* @RestNoRoute()
*
* @return User $user
*/
public function postUsersAction(User $user, ConstraintViolationListInterface $validationErrors)
{
if (count($validationErrors) > 0) {
throw new ValidationException($validationErrors);
}
$em = $this->getDoctrine()->getManager();
$role = $em->getRepository('AppBundle:Role')->find(1);
$user->setRoles($role);
$em->persist($user);
$em->flush();
return $user;
}
/**
* @param User|null $user
*
* @RestView()
*/
public function deleteUserAction(User $user = null) {
if (null === $user) {
return $this->view(null, 404);
}
$em = $this->getDoctrine()->getManager();
$em->remove($user);
$em->flush();
}
/**
* @param User $user
* @return User|FOSRestBundleViewView|null
*
* @RestView()
*/
public function getUserAction(User $user)
{
if (null === $user) {
return $this->view(null, 404);
}
return $user;
}
/**
* @param Role $role
* @return Role|FOSRestBundleViewView
*
* @RestView()
*/
public function getRoleAction(Role $role)
{
if (null === $role) {
return $this->view(null, 404);
}
return $role;
}
/**
* @param User $user
* @return DoctrineCommonCollectionsCollection
*
* @RestView()
*/
public function getUserRolesAction(User $user)
{
return $user->getRoles();
}
/**
* @param User $user
* @param Role $role
* @param ConstraintViolationListInterface $validationErrors
*
* @RestView(statusCode=201)
* @ParamConverter("role", converter="fos_rest.request_body", options={"deserializationContext"={"groups"={"Deserialize"}}})
* @RestNoRoute()
*
* @return Role
*/
public function postUserRolesAction(User $user, Role $role, ConstraintViolationListInterface $validationErrors)
{
if (count($validationErrors) > 0) {
throw new ValidationException($validationErrors);
}
$role->setUser($user);
$em = $this->getDoctrine()->getManager();
$user->getRoles()->add($role);
$em->persist($user);
$em->flush();
return $role;
}
}
问题是您返回实体，需要从序列化器传递才能获得Hateoas链接。
类似的东西：
我使用jsm_serializer
$serializer = $this->get('jms_serializer');
return new Response(
$serializer->serialize(
$users,
'json',
SerializationContext::create()->enableMaxDepthChecks()
),
201
);
而不是这样：
return $users;
对我感到羞耻：/
问题是第一步，我只是没有在appkernel.php
中包含捆绑包new BazingaBundleHateoasBundleBazingaHateoasBundle(),
这是一条缺失的行。没有借口。