Method: ActiveRecord::Calculations#maximum
- Defined in:
- lib/active_record/relation/calculations.rb
#maximum(column_name) ⇒ Object
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
146 147 148 |
# File 'lib/active_record/relation/calculations.rb', line 146 def maximum(column_name) calculate(:maximum, column_name) end |