method

sum

Ruby on Rails latest stable (v7.1.3.2) - 2 notes - Class: ActiveRecord::Calculations::ClassMethods

1.0.0
1.1.6 (0)
1.2.6 (0)
2.0.3 (1)
2.1.0 (0)
2.2.1 (0)
2.3.8 (6)
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2
7.1.3.4
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

These similar methods exist in v7.1.3.2:

sum(column_name, options = {}) public

Calculates the sum of values on a given column. The value is returned with the same data type of the column, 0 if there’s no row. See calculate for examples with options.

  Person.sum('age') # => 4562

Show source

# File activerecord/lib/active_record/calculations.rb, line 83
      def sum(column_name, options = {})
        calculate(:sum, column_name, options)
      end