Counter::Cache::CRedis

Set a counter for model through redis in order to improve perfomance.

Installation

Add this line to your application's Gemfile:

gem 'counter-cache-credis'
gem 'redis'

And then execute:

$ bundle

Or install it yourself as:

$ gem install counter-cache-redis

Usage

Init

rails g redis_config

It will create config/redis.yml

# redis.yml
redis: &redis
  redis_port: 6379
  redis_namespace: 'redis'
  redis_db: 0

test:
  <<: *redis
  redis_host: 'localhost'

development:
  <<: *redis
  redis_host: 'localhost'

production:
  <<: *redis
  redis_host: 'localhost'

Use

class Student < ActiveRecord::Base
    counter_cache_redis
end

student = Student.first
# It will increase itself by one
student.increase_counter
# increase selected column
student.increase_counter(:hello_count)
# It will reduce itself by one
student.reduce_counter
# get views_count through redis
student.get_views_count_cache

Configure

class Student < ActiveRecord::Base
  # select custom column
  counter_cache_redis column: :hello_count
end

class Student < ActiveRecord::Base
  # When cache of redis is bigger than 50, it will write to db and refresh redis
  # default is 20
  counter_cache_redis delay: 50
end

Contributing

1. Fork it ( https://github.com/[my-github-username]/counter-cache-redis/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request