调用devise注册从另一个控制器创建

Question

在我的设计中

class XyzController <  ApplicationController

def custom_signup
    user = User.new(first_name: "xyz", last_name: "twr", password: "password", password_confirmation: "password")
    redirect_to user_registration_path(user)
end

我想从另一个控制器中调用此注册#create方法

extension Alamofire.Request {
class func authResponseSerializer() -> Serializer {
    return {request, response, data in
        if data == nil {
            return (nil, nil)
        }
        var jsonError: NSError?
        let jsonData:AnyObject?
        do {
            jsonData = try NSJSONSerialization.JSONObjectWithData(data!, options: [])
        } catch var error as NSError {
            jsonError = error
            jsonData = nil
        } catch {
            fatalError()
        }
        if jsonData == nil || jsonError != nil {
            return (nil, jsonError)
        }
        let json = JSON(jsonData!)
        if json.error != nil || json == nil {
            return (nil, json.error)
        }

        var auth:Authorization = Authorization(json: json)
        return (auth, nil)
    }

 }

  func responseAuthorization(completionHandler: (NSURLRequest, NSHTTPURLResponse?, Result<Authorization>) -> Void) -> Self {
      return response(responseSerializer: Request.authResponseSerializer(), completionHandler: completionHandler)
 }

我想在custom_signup方法中注册用户。 有没有办法做到这一点？