未找到 Laravel 自定义特征
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Laravel Custom Trait Not Found
提问by Watercayman
I'm new to traits, but thought I'd give it a try. But, it doesn't seem to load.
我是特征的新手，但我想我会尝试一下。但是，它似乎没有加载。
I've created a trait within a folder under the Laravel app directory: app\Helpers called CheckPermsAgainstObjectTrait.php
我在 Laravel 应用程序目录下的文件夹中创建了一个特征： app\Helpers 名为 CheckPermsAgainstObjectTrait.php
Here is the trait code:
这是特征代码：
<?php
namespace App\Helpers;
trait CheckPermsAgainstObjectTrait {
function something{}
}
I try to use it in a controller as such:
我尝试在控制器中使用它：
<?php
namespace App\Http\Controllers;
use this&that;
use App\Helpers\CheckPermsAgainstObjectTrait;
class PolicyController extends Controller{
use CheckPermsAgainstObjectTrait;
}
Classes in that directory load fine. PHPStorm sees the trait fine. I've clear compiled aritsan and dumped autoload. I'm guessing there is something that Laravel doesn't like with the namespacing? I would hope I don't need to do any manual loading in composer -- but I'm having trouble finding any documentation to give me a hint as to what I'm screwing up.
该目录中的类加载良好。PHPStorm 认为这个特性很好。我已经清除了编译的 aritsan 并转储了自动加载。我猜 Laravel 不喜欢命名空间？我希望我不需要在作曲家中进行任何手动加载——但是我找不到任何文档来提示我搞砸了什么。
The error:
错误：
FatalErrorException in PolicyController.php line 15:
Trait 'App\Helpers\CheckPermsAgainstObjectTrait' not found
Any thoughts?
有什么想法吗？
回答by huuuk
Did you dump autoload files?
您是否转储了自动加载文件？
composer dump-autoload
回答by Zack Morris
The answer for me was that I had the wrong namespace at the top of my trait file due to working from a Laravel trait as an example. If your trait is in App/Traits/MyTrait.phpthen make sure your namespace is:
我的答案是，由于以 Laravel trait 为例，我的 trait 文件顶部有错误的命名空间。如果您的特征在，App/Traits/MyTrait.php那么请确保您的命名空间是：
namespace App\Traits;
trait MyTrait
{
// ..
}
Then from the file that's including the trait:
然后从包含特征的文件中：
use App\Traits\MyTrait;
class MyClass
{
use MyTrait;
// ..
}
No need to mess with config/app.php, composer.jsonor autoloading.
无需弄乱config/app.php,composer.json或自动加载。
回答by Quisk
I had a very similar problem where I was getting the error Trait 'Tests\CreatesApplication' not found in '.../my_project/tests/TestCase.php' on line 9while running tests with phpunitbecause I manually updated my Laravel project and must have missed some changes. This may also happen to anyone creating a trait or class in a unique namespace.
我有一个非常相似的问题，我Trait 'Tests\CreatesApplication' not found in '.../my_project/tests/TestCase.php' on line 9在运行测试时遇到错误，phpunit因为我手动更新了我的 Laravel 项目并且一定错过了一些更改。这也可能发生在任何在唯一命名空间中创建特征或类的人身上。
Anyways, @Devon 's comment on the original question pointed me in the right direction.
无论如何，@Devon 对原始问题的评论为我指明了正确的方向。
I was missing the required autoloader configuration in my composer.jsonfile, so I checked what it should be for my version of Laravel (5.4 in this case) from the Laravel github repository.
我的文件中缺少所需的自动加载器配置composer.json，因此我从Laravel github 存储库检查了我的 Laravel 版本（在本例中为 5.4）应该是什么。
In this case, I was not calling from a namespace within App\(which was already in composer.json.)
在这种情况下，我不是从内部的命名空间App\（已经在composer.json.）
Here's what I was missing from composer.json:
这是我所缺少的composer.json：
{
...,
"autoload-dev": {
"psr-4": {
"Tests\": "tests/"
}
},
...
}
Thanks goes to Devon! Hope this keeps someone else from pulling their hair out.
感谢德文郡！希望这可以防止其他人拔头发。
