[英]Duplicated value in my JSON response in Laravel
I created method show()
in controller to return name and timestamps + all permissions this role has.我在控制器中创建了方法
show()
以返回名称和时间戳 + 该角色拥有的所有权限。 Spatie/Laravel-Permission is responsible for associating users with permissions and roles in my API. Spatie/Laravel-Permission 负责将用户与我的 API 中的权限和角色相关联。
public function show($name)
{
$role = Role::findByName($name);
return response()->json([
$role,
$role->permissions
]);
}
Output:输出:
[
{
"name": "root",
"created_at": "2019-04-08 19:41:49",
"updated_at": "2019-04-08 19:41:49",
"permissions": [
{
"name": "users.store"
},
{
"name": "users.destroy"
},
{
"name": "users.show.id"
},
{
"name": "users.update.id"
},
{
"name": "users.show.name"
},
{
"name": "users.update.name"
}
]
},
[
// This is duplicate
{
"name": "users.store"
},
{
"name": "users.destroy"
},
{
"name": "users.show.id"
},
{
"name": "users.update.id"
},
{
"name": "users.show.name"
},
{
"name": "users.update.name"
}
]
]
As you can see there is useless duplicate of permissions.如您所见,存在无用的权限重复。
But if I will remove $role from my response但是如果我从我的回复中删除 $role
return response()->json([
// $role,
$role->permissions
]);
Everything is fine一切安好
[
[
{
"name": "users.store"
},
{
"name": "users.destroy"
},
{
"name": "users.show.id"
},
{
"name": "users.update.id"
},
{
"name": "users.show.name"
},
{
"name": "users.update.name"
}
]
]
And when I want to return only $role without permissions like this:当我只想在没有权限的情况下返回 $role 时:
return response()->json([
$role,
// $role->permissions
]);
My output is:我的输出是:
[
{
"name": "root",
"created_at": "2019-04-08 19:41:49",
"updated_at": "2019-04-08 19:41:49"
}
]
When you call $role->permissions
in your response, permissions are loaded into the $role
object, and then serialized to json.当您在响应中调用
$role->permissions
时,权限会加载到$role
对象中,然后序列化为 json。 So basically you're sending $role
object with loaded permissions, and you're also sending permissions themselves.所以基本上你是发送带有加载权限的
$role
对象,并且你自己也在发送权限。
Try:尝试:
public function show($name)
{
$role = Role::findByName($name)->load('permissions');
return response()->json([
$role
]);
}
you can use Eloquent: API Resources here你可以在这里使用 Eloquent:API 资源
public function show($name)
{
return new RoleResource(Role::findByName($name));
}
and RoleResource like this:和 RoleResource 像这样:
<?php
namespace App\Http\Resources;
use Illuminate\Http\Resources\Json\JsonResource;
class RoleResource extends JsonResource
{
/**
* Transform the resource into an array.
*
* @param \Illuminate\Http\Request $request
* @return array
*/
public function toArray($request)
{
return [
'name' => $this->name,
'created_at' => $this->created_at,
'updated_at' => $this->updated_at,
'permissions' => $this-> permissions,
];
}
}
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