average(column_name, options = {}) — ActiveRecord::Calculations::ClassMethods

average(column_name, options = {})

Calculates the average value on a given column. The value is returned as a float, or nil if there’s no row. See calculate for examples with options.

Person.average('age') # => 35.8

Parameters

column_name req
options opt = {}

Source

# File activerecord/lib/active_record/calculations.rb, line 56
      def average(column_name, options = {})
        calculate(:avg, column_name, options)
      end

Defined in activerecord/lib/active_record/calculations.rb line 56 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::Calculations::ClassMethods

Signature

Parameters