当我包含“Rails.application.routes.url_helpers”时，参数数量错误（0为0..1）

Question

I have written application_helper.rb, which is basically global helpers for my Rails application. And in order for me to use url helper like post_url(post) , Rails force me to include this code at the top of my application_helper.rb:

include Rails.application.routes.url_helpers

I included that line of code like this:

include Rails.application.routes.url_helpers
include ActionView::Helpers::TextHelper

module ApplicationHelper
....
end

And suddenly, when i load my app in the browser, all the link_to codes seem to be throwing the same kind of error like this:

wrong number of arguments (3 for 0..1)

Here is the screenshot of that error:

This is the sample of one my link_to code:

  <%= link_to root_path do %>
    <img src="https://googledrive.com/host/xxx/xxx-logo-small.png" class="" />
  <% end %>

And its not only this link that is causing an error, but all links in my app! So whats wrong with this include Rails.application.routes.url_helpers ? Why is this causing such error? And how could I use this and fix the problem it's causing at the same time?

Thanks!

Answer 1

Do you need add also this includes in your helpers

include AbstractController::Rendering
include AbstractController::Helpers
include AbstractController::Translation
include AbstractController::AssetPaths
include Rails.application.routes.url_helpers