rails

capybara

joosy

view

auto_discovery_link_tag javascript_include_tag stylesheet_link_tag image_tag video_tag audio_tag

helper

pluralize(5,'child') pluralize(6,'error')

post.errors.any? post.errors.count post.errors.full_message.each

def show

@posts = Post.find(params[:id]) respond_with @post

end

class Post < ActiveRecord::Base
    validates :name, :presence=>true
    validates :title, :presence=>true,
                      :length=>{:minimum=>5}
    has_many :comments
end
@post.comments

rails g migration create_join_table users, friends rails g model Token uuid:string user:references

routes

match "/usrs/:id" => "users#show", via: :get match "/users" => "users#index", via: [:get, :post] get "/users" => "users#index"

class User < ActiveRecord self.table_name 'users' self.primary_key 'id' end

10.minutes.ago 10.minutes.since