使用Rails动态构建RESTful路由

I'm trying to write a helper method that accepts the name of a plural resource and returns a corresponding link. The essence of the method is:

我正在尝试编写一个helper方法，它接受复数资源的名称并返回相应的链接。该方法的本质是:

def get_link(resource)
  link_to "#{resource.capitalize}", resource_path
end

—Clearly the resource_path part above doesn't work. What I'd like is to be able to pass foos to get foos_path and bars to get bars_path etc. How can I do that? I can't quite work out the syntax.

-显然，上面的resource_path部分不能工作。我想要的是能够通过foos来获取foos_path和bar来获取bars_path等等。我怎么做呢?我不太懂语法。

3 个解决方案

#1


def get_link(resource)
  link_to "#{resource.capitalize}", send("#{resource}_path")
end

#2

def get_link(resource)
  link_to(resource.to_s.titleize, send("#{resource}_path"))
end

The to_s call on resource is to support passing symbols as resource. So

对资源的to_s调用是支持将符号作为资源传递。所以

get_link("foos")

will work and also

工作,也

get_link(:foos)

#3

If you want to construct a RESTful route with a member:

如果您想与成员一起构建一个RESTful路由:

send("edit_#{resource}_path".to_sym, @resource)

#1


def get_link(resource)
  link_to "#{resource.capitalize}", send("#{resource}_path")
end

#2

def get_link(resource)
  link_to(resource.to_s.titleize, send("#{resource}_path"))
end