Contents

# -*- coding: utf-8 -*-
module ActiveRecord::Turntable::Algorithm
  class ModuloAlgorithm < Base
    def initialize(config)
      @config = config
    end

    def calculate(key)
      @config["shards"][key % @config["shards"].size]["connection"]
    rescue
      raise ActiveRecord::Turntable::CannotSpecifyShardError, "cannot specify shard for key:#{key}"
    end
  end
end

Version data entries

9 entries across 9 versions & 1 rubygems

Version	Path
activerecord-turntable-2.5.0	lib/active_record/turntable/algorithm/modulo_algorithm.rb
activerecord-turntable-2.4.0	lib/active_record/turntable/algorithm/modulo_algorithm.rb
activerecord-turntable-2.3.3	lib/active_record/turntable/algorithm/modulo_algorithm.rb
activerecord-turntable-2.3.2	lib/active_record/turntable/algorithm/modulo_algorithm.rb
activerecord-turntable-2.3.1	lib/active_record/turntable/algorithm/modulo_algorithm.rb
activerecord-turntable-2.3.0	lib/active_record/turntable/algorithm/modulo_algorithm.rb
activerecord-turntable-2.2.2	lib/active_record/turntable/algorithm/modulo_algorithm.rb
activerecord-turntable-2.2.1	lib/active_record/turntable/algorithm/modulo_algorithm.rb
activerecord-turntable-2.2.0	lib/active_record/turntable/algorithm/modulo_algorithm.rb