method

maximum

rails latest stable - Class: ActiveRecord::Calculations

maximum(column_name)

public

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

# File activerecord/lib/active_record/relation/calculations.rb, line 146
    def maximum(column_name)
      calculate(:maximum, column_name)
    end

maximum

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