laravel 自定义类添加别名
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laravel custom classes add alias
提问by VGD
So I want to add a alias for custom classes in order to be able to use them in blade:
所以我想为自定义类添加一个别名，以便能够在刀片中使用它们：
<?php
namespace App\Classes;
class Requirement
{
public static function Test()
{
return "hello";
}
}
In config/app.phpI added a alias like so:
在config/app.php我添加了一个别名，如下所示：
...
'Requirement' => App\Classes\Requirement::class
Then, I would like to be able to call it in a blade template like
然后，我希望能够在刀片模板中调用它，例如
{{ Requirement::Test() }}
But the alias is not working somehow. I also tried composer dump-autoload, but it's still not working.
但是别名以某种方式不起作用。我也试过了composer dump-autoload，但还是不行。
BTW: Is adding custom classes like that a viable way to implement site-specific logic like retrieving and processing data from a database or is there a better approach?
顺便说一句：添加这样的自定义类是实现特定于站点的逻辑（例如从数据库检索和处理数据）的可行方法，还是有更好的方法？
Edit 1
编辑 1
I created Requirement.phpin app/Facadeswith following content
我创建Requirement.php在app/Facades与以下内容
<?php
namespace App\Facades;
use Illuminate\Support\Facades\Facade;
class Requirement extends Facade{
protected static function getFacadeAccessor() { return 'Requirement'; }
}
added PageContentProvider.phpin app/Providerswith the following content
加PageContentProvider.php中app/Providers包含以下内容
<?php
namespace App\Providers;
use Illuminate\Support\ServiceProvider;
class PageContentProvider extends ServiceProvider
{
/**
* Register the application services.
*
* @return void
*/
public function register()
{
$this->app->bind('Requirement', function($app){
return new \App\Classes\Requirement();
});
}
}
and in config/app.phpthe alias
并在config/app.php别名中
'Requirement'=>App\Facades\Requirement::class
as well as the provider
以及提供者
App\Providers\PageContentProvider::class
but it's still not working.
但它仍然无法正常工作。
Edit 2
编辑 2
By adding something like
通过添加类似的东西
exit();
or
或者
echo "blabla";
inside register(), nothing changes. Does that indicate that PageContentProvideris not even getting loaded?
里面register()，没有任何变化。这是否表明它PageContentProvider甚至没有被加载？
Edit 3
编辑 3
Since the standard AppServiceProvidergets loaded, I deleted the coresponding entry of AppServiceProviderin config/app.php... and it still worked!Somehow my changes don't get applied. Does anybody have solution for that?
由于标准AppServiceProvider被加载，我删除了AppServiceProviderin config/app.php...的相应条目，它仍然有效！不知何故，我的更改没有得到应用。有人有解决方案吗？
回答by VGD
Problem wasn't the code at all:
After realising that changes in config/app.phpdidn't get applied, a simple
问题根本不是代码：在意识到config/app.php没有应用更改后，一个简单的
php artisan config:clear
fixed literally every issue I presented in my question.
从字面上解决了我在问题中提出的每个问题。
回答by Iamzozo
Add to your composer file:
添加到您的作曲家文件：
"autoload": {
//...
"files" : ["app/classes/Requirement.php"]
},
Then add to your alias as you wrote in your config/app.php
然后添加到您在 config/app.php 中写的别名
Then you will be able to use in your templates:
然后您将能够在您的模板中使用：
{{ Requirement::test() }}
回答by Douglas.Sesar
Since you mentioned that you needed a class in Blade:
既然你提到你需要在 Blade 中开设一个课程：
In stead of setting up an alias, you could use the blade @injectfunction at the top of your blade file.
您可以使用@inject刀片文件顶部的刀片功能，而不是设置别名。
@inject('your_class','App\Helpers\SomeNamespace\Yourclass')
Then in the blade template:
然后在刀片模板中：
{{$your_class->doSomething()}}
回答by aldrin27
Try this if this works:
如果可行，请尝试此操作：
In your controller:
在您的控制器中：
$whateveryour_variable = Requirement::Test();
return view('yourview',compact('whateveryour_variable'));
In your View:
在您的视图中：
{{$whateveryour_variable}}
You could fetch the data in your db then store it in a variable then pass that in your view.
您可以在您的数据库中获取数据，然后将其存储在一个变量中，然后将其传递到您的视图中。
回答by Borja Marco
Did you tried with a slash?
你用斜线试过吗？
{{ \Requirement::Test() }}
EDIT: grammar
编辑：语法
回答by Martin Bean
What you're looking for is Fa?ades.
您要找的是Fa?ades。
You create a Fa?ade class that contains a reference to your class's binding in the service container, and that's what you use in the aliasesarray in your config/app.phpfile.
您创建了一个 Fa?ade 类，其中包含对服务容器中类绑定的引用，这就是您aliases在config/app.php文件中的数组中使用的内容。
Documentation: http://laravel.com/docs/5.1/facades
