CakePHP在控制器之间传递值 [英] CakePHP passing values between controllers

问题描述

我想将值从一个控制器传递到另一个。
例如，我有一个会议控制器，我想创建一个新的事件。
我想将会议ID传递给事件，以确保这两个对象是关联的。
我想使用beforeFilter方法存储在ivar $会议中。

I want to pass values from one controller to another. For example I have a Conference controller and I want to create a new Event. I want to pass the Conference id to the event to make sure those two objects are associated. I would like to store in the ivar $conference using beforeFilter method.

这是我的事件控制器中的beforeFilter函数

Here is my beforeFilter function in the Events controller

public function beforeFilter() {
    parent::beforeFilter();

    echo '1 ' + $this->request->id;
    echo '2 ' +     $this->request['id'];
    echo $this->request->params['id'];
            if(isset(   $this->request->params['id'])){
             $conference_id =   $this->request->params['id'];       
        }
        else{
         echo "Id Doesn't Exist";   
        }   
}

每当我将url更改为：

Whenever I change url to something like:

http://localhost:8888/cake/events/id/3

或

http://localhost:8888/cake/events/id:3

我收到一个错误说未定义id。

I am getting an error saying that id is not defined.

当您通过url传递数据时，我应该如何处理？

How should I proceed?

推荐答案

可以通过

$this->passedArgs['variable_name'];

例如，如果您的网址是：

For example if your URL is:

http://localhost/events/id:7

然后使用此行访问该ID

Then you access that id with this line

$id = $this->passedArgs['id'];

当您访问通过url接受参数的控制器函数时，您可以使用这些参数，变量，例如你的url看起来像这样

When you access a controller function that accepts parameters through url, you can use those parameters just as any other variable, like for example say your url looks like this

http://localhost/events/getid/7

然后您的控制器函数应如下所示：

Then your controller function should look like:

public function getid($id = null){
  // $id would take the value of 7
  // then you can use the $id as you please just like any other variable 
}

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