Module: ActiveRecordInstanceCount::Instrumentation::ActiveRecord

Defined in:
lib/active-record-instance-count/instrumentation/active_record.rb

Class Method Summary collapse

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/active-record-instance-count/instrumentation/active_record.rb', line 14

def self.included(klass)
  klass.class_eval do

    @@instantiated = {}
    @@total = nil

    def self.reset_instance_type_count
      @@instantiated = {}
      @@total = nil
    end

    def self.increment_instance_type_count
      @@instantiated[base_class.name] ||= 0
      @@instantiated[base_class.name] += 1
    end

    def self.instantiated_hash
      @@instantiated
    end

    def self.total_objects_instantiated
      @@total ||= @@instantiated.values.sum
    end

    unless ActiveRecordInstanceCount.extended_active_record?
      class << self
        alias_method :allocate_before_counter, :allocate

        def allocate
          value = allocate_before_counter
          increment_instance_type_count
          value
        end
      end

      alias_method :initialize_before_counter, :initialize

      def initialize(*args, &block)
        value = initialize_before_counter(*args, &block)
        self.class.increment_instance_type_count
        value
      end

      ActiveRecordInstanceCount.extended_active_record!
    end
  end
end