php - 从 CakePHP 组件到达 CakeRequest 对象

Question

我正在尝试从我的自定义组件访问 CakeRequest 对象。但我不能。里面cookbook我发现了这个:

CakeRequest is the default request object used in CakePHP. It centralizes a number of features for interrogating and interacting with request data. On each request one CakeRequest is created and then passed by reference to the various layers of an application that use request data. By default CakeRequest is assigned to $this->request, and is available in Controller, Views and Helpers. You can also access it in Components by using the controller reference.

Controller 引用是什么意思？我尝试了以下。它有效。
但是，如何在不将参数 this 传递给组件的情况下到达 CakeRequest 呢？

// MyController.php
    public function foo(){
        $this->MyUtil->bar($this);
    }

// MyUtilComponent.php
    function bar(&$controller) {
        $a=$controller->request;
        print_r($a);
    }

Answer 1

CakePHP 组件有一个 initialize可用于存储对 Controller 的引用的回调。将此添加到您的组件类:

public function initialize(Controller $controller) {
    $this->controller = $controller;
}

那么 bar 可以是:

function bar() {
    $a = $this->controller->request;
    print_r($a);
}