如何在 Laravel 5 的视图中使用我的自定义类
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How can I use my custom class in a view on Laravel 5
提问by Ricardo Giaviti
I have a custom class that I have to use inside my view. But how I do this?
我有一个必须在我的视图中使用的自定义类。但我如何做到这一点？
In Laravel 4.2, I simply run composer.phar dump-autoloadand add in start/local.phpas follow:
在 Laravel 4.2 中，我简单地运行composer.phar dump-autoload并添加start/local.php如下：
ClassLoader::addDirectories(array(
app_path().'/commands',
app_path().'/controllers',
app_path().'/models',
app_path().'/database/seeds',
app_path().'/helpers/MyClass',
));
Finally, inside my view, I just use my class: MyClass::myMethod(). Again, how I do this with Laravel 5?
最后，在我看来，我只使用我的类：MyClass::myMethod(). 再说一次，我如何用 Laravel 5 做到这一点？
Thanks
谢谢
回答by manix
You have two options, make a Serviceor a Service Provider.
您有两个选择， make aService或 a Service Provider。
Service
服务
This class could works as a helper having all its methods statics. For example, in app/Services folder you can create a new one:
这个类可以作为一个助手，拥有它的所有方法静态。例如，在 app/Services 文件夹中，您可以创建一个新文件夹：
<?php
namespace Myapp\Services;
class DateHelper{
public static function niceFormat(){
return "This is a nice format";
}
}
Then, add an alias to this class at config/app.phplike so:
然后，为此类添加别名，config/app.php如下所示：
'DateHelper' => 'Myapp\Services\DateHelper'
Now, In your application you can call the niceFormat()method like \DateFormat::niceFormat();
现在，在您的应用程序中，您可以niceFormat()像这样调用方法\DateFormat::niceFormat();
Service Provider
服务提供者
In the other hand, you can create a Service Provider like the docsstate and attach a Facade.
回答by Sanjay Vamja
I just found that you can add any class instance to a view by simple injection.
我刚刚发现您可以通过简单的注入将任何类实例添加到视图中。
https://laravel.com/docs/5.6/blade#service-injection
https://laravel.com/docs/5.6/blade#service-injection
Just create a class like:
只需创建一个类，如：
app/Containers/Helper.php
应用程序/容器/Helper.php
namespace App\Containers;
class Helper {
function foo() {
return 'bar';
}
}
In blade view file:
在刀片视图文件中：
@inject('helper', 'App\Containers\Helper')
<div>
What's Foo: {{ $helper->foo() }}
</div>
And, that's it! Isn't that so cool!
而且，就是这样！是不是很酷！
