instance method
average
Ruby on Rails 2.2.3
Last seen in v2.3.18Available in: v2.2.3 v2.3.18
Signature
average(column_name, options = {})Calculates the average value on a given column. The value is returned as a float. See calculate for examples with options.
Person.average('age')
Parameters
-
column_namereq -
optionsopt = {}
Source
# File activerecord/lib/active_record/calculations.rb, line 54
def average(column_name, options = {})
calculate(:avg, column_name, options)
end
Defined in activerecord/lib/active_record/calculations.rb line 54
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Defined in ActiveRecord::Calculations::ClassMethods