向现有控制器添加方法
我对 Rails 还很陌生，希望你能帮助我理解以下内容是如何工作的。
目前我有一个名为项目（projects_controller.rb）的控制器。根据我对 ROR 的理解，每个控制器都有一些基本（固有）方法，例如索引、新建、创建、编辑、显示等。我想添加一个名为“help”的方法和一个显示帮助信息的视图。
目前一个用户可以创建多个项目。这些项目包含一组由用户填充的字段。我想添加一个用户可以访问的帮助页面（通过项目屏幕上的链接），该页面解释了每个项目字段以及如何最好地填写它。我希望这是一个独立的页面（不仅仅是项目页面上显示的信息）。
截至目前，项目的 URL 为（编辑项目时）： localhost:3001/projects/id/edit
我希望帮助文件的路径为 localhost： 3001/projects/id/help
如果我希望帮助文件位于上面列出的路径中，我是否正确地假设我需要在项目控制器中创建一个名为“help”的新方法？如果是这样，我是否需要添加一些东西到routes.rb中才能使其发挥作用？我会在 Haml 中使用 link_to 函数来创建指向它的链接吗？
如果这看起来令人困惑或有很多问题，我很抱歉。我很感激你的时间。如果您对是否走在正确的道路上有任何建议，请告诉我。太感谢了！
I'm pretty new to rails, and I'm hoping you can help me understand how the following works.
At present I have a controller named projects (projects_controller.rb). From what I understand of ROR each controller has some basic (inherent) methods such as index, new, create, edit, show, etc. I would like to add a method called "help" and a view to display the help information.
At present a user can create many projects. The projects contain a set of fields that are populated by the user. I would like to add a help page that the user can access (via a link on the project screen) which explains each project field and how to best fill it out. I would like this to be an independent page (not just info displayed on the project's page).
As of now, the URL to the projects is (when editing a project): localhost:3001/projects/id/edit
I would like for the path to the help file to be localhost:3001/projects/id/help
If I want the help file to be located in the path listed above, am I correct in assuming that I need to create a new method, called "help", in the projects controller? And if so, is there something that I need to add to routes.rb to make it function? And would I use a link_to function in the Haml to create a link to it?
I'm sorry if this seems confusing or a lot of question. I appreciate your time. If you have any suggestions on whether on the right path please let me know. Thank you so much!
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我认为目前您在路线中有这个，
只需将其替换为
“并在控制器中添加方法”，并在“视图/产品”文件夹中添加名为 help.erb.html 的视图（如果您使用 erb）。
您可以使用 help_path 和 help_url
I think currently you have this in routes
just replace this with
And add method in controller and add view named help.erb.html(if you r using erb) in views/product folder.
you can use help_path and help_url