method

sum

Ruby on Rails latest stable (v3.2.13) - 0 notes - Class: CollectionAssociation

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What's this?

sum(*args) public

Calculate sum using SQL, not Enumerable

# File activerecord/lib/active_record/associations/collection_association.rb, line 181
      def sum(*args)
        if block_given?
          scoped.sum(*args) { |*block_args| yield(*block_args) }
        else
          scoped.sum(*args)
        end
      end

sum

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