RedisCounterCache
Counter cache function by Redis
Installation
Add this line to your application's Gemfile:
gem 'redis_counter_cache'And then execute:
$ bundle
Or install it yourself as:
$ gem install redis_counter_cache
Usage
# create_table :users do |t|
# end
class User < ActiveRecord::Base
include Redis::Objects
include RedisCounterCache
has_many :user_items
redis_counter_cache :user_items
end
# create_table :user_items do |t|
# t.integer :user_id
# end
class UserItem < ActiveRecord::Base
belongs_to :user
end
user = User.create
user.user_items.create
user.update_user_items_count_cache # specify updating cache when change
user.user_items_count # get count with a cache
# => 1License
The gem is available as open source under the terms of the MIT License.