Problem
there is a mongoid great tutorial:
http://railscasts.com/episodes/238-mongoid
but this tutorial doesn't work for mongoid >= 3.0.0.
you might see some error messages like:
undefined method `key?' for nil:NilClass
undefined method `referenced_in' for Article:Class
undefined method `references_many' for Author:Class
undefined method `article_comments_path' for
No route matches [POST] "/articles/.../comments"
it seems that there was some changes its specification.
Solution
all you need to modify for suits 3.0.0 are bellow:
diff --git a/app/models/article.rb b/app/models/article.rb
index a00e637..386536a 100644
--- a/app/models/article.rb
+++ b/app/models/article.rb
@@ -5,5 +5,5 @@ class Article
field :published_on, :type => Date
validates_presence_of :name
embeds_many :comments
- referenced_in :author
+ belongs_to :author
end
diff --git a/app/models/author.rb b/app/models/author.rb
index 7741009..e52989e 100644
--- a/app/models/author.rb
+++ b/app/models/author.rb
@@ -1,6 +1,6 @@
class Author
include Mongoid::Document
field :name, type: String
- key :name
- references_many :articles
+ field :_id, type: String, default: ->{ name }
+ has_many :articles
end
diff --git a/config/routes.rb b/config/routes.rb
index 31cc8de..45ac1c4 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -2,7 +2,9 @@ Mongoid01::Application.routes.draw do
resources :authors
- resources :articles
+ resources :articles do
+ resources :comments
+ end
# The priority is based upon order of creation:
@@ -54,7 +56,7 @@ Mongoid01::Application.routes.draw do
# You can have the root of your site routed with "root"
# just remember to delete public/index.html.
- # root :to => 'welcome#index'
+ root :to => 'articles#index'
# See how all your routes lay out with "rake routes"
happy coding ! :)
