![CommentsController
create action
class CommentsController < ApplicationController
def create
@post = Post.find(params[:post_id])
@comment = @post.comments.create(params[:comment])
redirect_to post_path(@post)
end
end](https://image.slidesharecdn.com/cocoa-on-rails-3rd-110718101116-phpapp01/85/Cocoa-on-rails-3rd-21-320.jpg)
Cocoa on-rails-3rd
- 1. Junli Blog Cocoa on Rails 3rd 2011-7-18
- 2. Blog
- 6. SQLite3
- 10. Say hello >rails generate controller home index app/views/home/index.html.erb index.html.erb <h1> Hello, Junli </h1>
- 12. config/routes.rb root root :to => “home#index” Rails root home controller
- 13. Post >rails generate scaffold Post name:string title:string content:text rake db:migrate
- 14. Comment model >rails generate model Comment commenter:string body:text post:references rake db:migrate rails generate
- 15. comment.rb app/models/comment.rb class Comment < ActiveRecord::Base belongs_to :post end
- 16. Models Models (post) (comment)
- 17. Models post.rb post.rb class Post < ActiveRecord::Base ... has_many :comments end @post.comments
- 18. config/route.rb resources :post do resources :comments end
- 19. Controller >rails generate controller Comments
- 20. Post show app/views/posts/show.html.erb http://dpaste.com/hold/570758/
- 21. CommentsController create action class CommentsController < ApplicationController def create @post = Post.find(params[:post_id]) @comment = @post.comments.create(params[:comment]) redirect_to post_path(@post) end end
- 22. Done Post