php - In CakePHP, override AppController's redirect() to respond with a url via json during ajax requests

Question

My controller methods serve dual purpose: To both handle traditional browser requests AND to interact via REST clients using mapped resources.

Case: This is convenient because I can keep all of my validation centralized in Cake models and still have nice ajax forms that I can validate by extracting Model::validationErrors and adding them to the json response. Where I don't care if a form is ajax, I can simply NOT apply my client-side javascript and the form and server communicate normally.

Problem: Many controller actions rely on Controller::redirect(). By overriding redirect(), trying beforeRedirect(), etc, I can find NO reliable way to convert the redirect into a JSON response during an ajax request that would indicate something like 'redirectUrl' => 'foo' so that my client (in the case of browser ajax) can forward the user to a new url using javascript location redirect.

I thought I had it working but realized that unauthorized users had access to run protected resources despite not seeing their output.

Answer 1

您可以使用带有两个键的 json 数组，例如

$json['status'] => 'success',
$json['url'] => 'router::url ("/",array("controller" => "yourcontroller",
                  "action" => "youraction"))';
// url where you want redirect after some processing

return json_encode($json);

//在您的脚本中发送 ajax 请求：

if(json['status'] == 'success'){
   window.location.href = json['url'];
}