Question

在用户提交电子邮件后,我希望redirect_to slider_path。目前,只有成功的信息没有方向显示。该法典:

class Splash::SubscribersController < ApplicationController

def create

  @subscriber = Subscriber.new(params[:subscriber])

  if @subscriber.save
    success = true
    message = "Success! We ll let you know when we launch."
  else
    success = false
    message = "Fail."
  end

  respond_to do |format|
    format.html { 
      if success
        flash[:success] = message
        redirect_to slider_path
      else 
        flash[:error] = message
      end
      redirect_to root_path 
    }
    format.json { render :json => { :success => success, :message => message }.to_json }
  end  
 end
end

Answer 1

页: 1

  if success
    flash[:success] = message
    redirect_to slider_path
  else 
    flash[:error] = message
  end
  redirect_to root_path

为此:

  if success
    flash[:success] = message
    redirect_to slider_path
  else 
    flash[:error] = message
    redirect_to root_path 
  end

Answer 2

rel=“noreferer”>Rails AP :

An action may contain only a single render or a single redirect. Attempting to try to do either again will result in a DoubleRenderError:

def do_something
  redirect_to :action => "elsewhere"
  render :action => "overthere" # raises DoubleRenderError
end

If you need to redirect on the condition of something, then be sure to add “and return” to halt execution.

def do_something
  redirect_to(:action => "elsewhere") and return if monkeys.nil?
  render :action => "overthere" # won t be called if monkeys is nil
end

Note the use of and Return

Answer 3

如果你想要在重新定位后退出行动,你就不需要做像“再向......”和返回”这样的事情。

Answer 4

Add a return statement after your redirect. If the action also renders a template by default, any redirects need to be followed by a return statement.

if success
  flash[:success] = message
  redirect_to slider_path
  return                    # <= Add a return.
else
  flash[:error] = message
end
redirect_to root_path

友情链接