instance method
maximum
Ruby on Rails 2.3.18
Since v2.2.3 Last seen in v2.3.18Available in: v2.2.3 v2.3.18
Signature
maximum(column_name, options = {})
Calculates the maximum value on a given column. The value is returned with the same data type of the column, or nil if there’s no row. See calculate for examples with options.
Person.maximum('age') # => 93
Parameters
-
column_namereq -
optionsopt = {}
Source
# File activerecord/lib/active_record/calculations.rb, line 74
def maximum(column_name, options = {})
calculate(:max, column_name, options)
end
Defined in activerecord/lib/active_record/calculations.rb line 74
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Defined in ActiveRecord::Calculations::ClassMethods