Monthly Archives: August 2012

1. Migration After add in the /db/migrate/002_XX_.rb def self.up create_table :votes do |t| t.column :story_id, :integer t.column :created_at, :datetime end end run the command: $rake  db:migrate class Story < ActiveRecord::Base validates_presence_of :name, :link has_many :votes end class Vote < ActiveRecord::Base belongs_to … Continue reading →

1. Helper: A helper is a chunk of code that can be reused throughout an application, and is stored in a helper file. A new helper file called controllername_helper.rb. Helpers associated with a particular controller are available only to the views of that … Continue reading →