cacheable

cacheable is a simple cache implementation based on activerecord, it is extracted from rails-bestpractices.com.

it supports activerecord >= 3.0.0, works on 1.9.2, 1.9.3 and jruby.

Introduction

Here is a blog post to introduce simple_cacheable gem, http://rails-bestpractices.com/blog/posts/24-simple_cacheable

Usage

class User < ActiveRecord::Base
  include Cacheable

  has_many :posts
  has_one :account

  model_cache do
    with_key                          # User.find_cached(1)
    with_attribute :login             # User.find_cached_by_login('flyerhzm')
    with_method :last_post            # user.cached_last_post
    with_association :posts, :account # user.cached_posts, user.cached_account
  end

  def last_post
    posts.last
  end
end

class Account < ActiveRecord::Base
  belongs_to :user
end

class Post < ActiveRecord::Base
  include Cacheable

  belongs_to :user
  has_many :comments, :as => :commentable

  model_cache do
    with_key                          # post.find_cached(1)
    with_association :user, :comments # post.cached_user, post.cached_comments
  end
end

class Comment < ActiveRecord::Base
  include Cacheable

  belongs_to :commentable, :polymorphic => true

  model_cache do
    with_association :commentable  # comment.cached_commentable
  end
end

Install

add the following code to your Gemfile

gem "simple_cacheable", :require => "cacheable"

Copyright © 2011 Richard Huang (flyerhzm@gmail.com), released under the MIT license