如何在 Laravel 视图中调用类方法？
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How to call class method inside a Laravel view?
提问by Ashley Brown
I'm trying to find a way to call a method from within my class file inside a blade file. foo()uses the $itemvariable from the foreach loop. Since I'm looping inside the blade file, I'm unable, or rather, it's bad practise, to call a controller method inside a view, or so I've heard.
我正在尝试找到一种方法来从刀片文件内的类文件中调用方法。foo()使用$item来自 foreach 循环的变量。因为我在刀片文件中循环，所以我不能，或者更确切地说，这是不好的做法，在视图中调用控制器方法，或者我听说过。
MyController
我的控制器
public function getData() {
$data = DB::paginate(10);
return view('view', ['data' => $data]);
}
public function foo($var) {
//do something with $var
return $var
}
view.blade.php
视图.blade.php
@foreach ($data as $item)
<td>{{$item->key}}</td>
<td>{{ //myController::foo($item) is Essentially the output I need }} </td>
@endforeach
Since $itemis generated in the foreach(which is inside the view), I don't know how to call method beforeit's past to the view in the return statement.
由于$item是在foreach（在视图内部）中生成的，我不知道如何在返回语句中的视图之前调用方法。
Any suggestions?
有什么建议？
回答by jakub_jo
Just share your controller with your view:
只需与您的视图共享您的控制器：
Controller:
控制器：
public function getData() {
$data = DB::paginate(10);
return view('view', [
'data' => $data,
'controller' => $this,
]);
}
View:
看法：
@foreach ($data as $item)
<td>{{$item->key}}</td>
<td>{{ $controller->foo($item) }} </td>
@endforeach
The better way would be to generate the output in the controller:
更好的方法是在控制器中生成输出：
public function getData() {
$data = DB::paginate(10);
$data = array_map(function($item) {
$item->output = $this->foo($item);
return $item;
}, $data);
return view('view', [
'data' => $data,
]);
}
