1 files changed, 46 insertions, 0 deletions
diff --git a/guides/rails_guides/helpers.rb b/guides/rails_guides/helpers.rb
new file mode 100644
index 0000000000..5ab1388c29
--- /dev/null
+++ b/guides/rails_guides/helpers.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+require "yaml"
+
+module RailsGuides
+  module Helpers
+    def guide(name, url, options = {}, &block)
+      link = content_tag(:a, href: url) { name }
+      result = content_tag(:dt, link)
+
+      if options[:work_in_progress]
+        result << content_tag(:dd, "Work in progress", class: "work-in-progress")
+      end
+
+      result << content_tag(:dd, capture(&block))
+      result
+    end
+
+    def documents_by_section
+      @documents_by_section ||= YAML.load_file(File.expand_path("../source/#{@language ? @language + '/' : ''}documents.yaml", __dir__))
+    end
+
+    def documents_flat
+      documents_by_section.flat_map { |section| section["documents"] }
+    end
+
+    def finished_documents(documents)
+      documents.reject { |document| document["work_in_progress"] }
+    end
+
+    def docs_for_menu(position = nil)
+      if position.nil?
+        documents_by_section
+      elsif position == "L"
+        documents_by_section.to(3)
+      else
+        documents_by_section.from(4)
+      end
+    end
+
+    def code(&block)
+      c = capture(&block)
+      content_tag(:code, c)
+    end
+  end
+end