Ruby on Rails:如何在form_tag中实现“取消"按钮 [英] Ruby on Rails : how to implement Cancel button in form_tag

问题描述

我有一个使用form_tag帮助器的基本表单，但工作正常，但是我想添加一个取消按钮，这样做的语法是什么?我希望取消按钮显示为按钮，而不是链接，然后将用户带到其他URL(指示他们不想提交表单).

I have a basic form using the form_tag helper working fine, but I want to add a cancel button, what is the syntax for doing this? I want the cancel button to appear as a button, not a link, then take the user to a different URL (indicating they don't want to submit the form).

TY， 弗雷德

推荐答案

如果要清除/重置表单字段，请执行dchacke的建议.

If you want to clear/reset the form fields, do what dchacke suggests.

但是，我通常希望取消按钮不会清除表单，而是让我离开表单，这意味着我不打算提交表单.

However, I'd generally expect a Cancel button to not clear the form, but to take me away from the form, meaning I don't plan on submitting it.

如果要使用后者，我只需在取消时创建一个指向您要转到的页面的链接(或按钮)，例如:

If you want the latter, I'd just make a link (or button) to the page you want to go to upon cancelling, such as :

=link_to 'Cancel', my_page_path

或者如果您想要一个按钮:

Or if you want a button:

= button_tag "Cancel", :type => 'button'

然后将其添加到您的控制器中

Then add this to your controller:

before_filter :check_for_cancel, :only => [:create, :update]

def check_for_cancel
  if params[:commit] == "Cancel"
    redirect_to my_page_path
  end
end

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