Rails:如何访问 RESTful 助手? [英] Rails: how do you access RESTful helpers?

问题描述

我正在尝试完成这个Rails 路由指南，但我陷入了困境3.3 部分:

I'm trying to work through this guide to Rails routing, but I got stuck in section 3.3:

创建一个 RESTful 路由也会在你的应用程序中提供一堆帮助程序

Creating a RESTful route will also make available a pile of helpers within your application

然后他们列出了一些帮助程序，例如 photos_url、photos_path 等

and then they list some helpers like photos_url, photos_path, etc.

我的问题:

在哪里可以找到可用"的助手的完整列表?

Where can I find the complete list of helpers that is "made available?"

有没有办法在控制台中调用助手?我创建了一个应用程序，然后用 script/console 打开控制台.我试图像这样调用控制台上的一个助手:

Is there a way to call the helpers in the console? I created an app, then opened up the console with script/console. I tried to call one of the helpers on the console like this:

>> entries_url

但是得到了:

NameError: undefined local variable or method `entries_url' for #<Object:0x349a4>
    from (irb):8

推荐答案

你有几个问题，下面的人已经回答了其中的大部分问题.

You have several questions in there, most of which have already been answered by people below.

然而，对一个没有完全解决的问题的答案是:是的，您可以使用脚本/控制台查看您的路线去哪里.只需输入 app.[route_helper] ，它就会响应路径.例如 app.users_path 将返回 /users/

The answer to one that wasn't fully addressed however, is: yes you can use the script/console to see where your routes go. Just type in app.[route_helper] and it will respond with the path. For example app.users_path will return /users/

因此，对于您的示例，输入 app.entries_url 作为完整 URL - 或输入 app.entries_path 作为其在控制台中的相对路径.

So for your example type app.entries_url for the full URL - or app.entries_path for its relative path within the console.

这篇关于Rails:如何访问 RESTful 助手?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！