30 lines
447 B
Ruby
30 lines
447 B
Ruby
# frozen_string_literal: true
|
|
|
|
module Arel # :nodoc: all
|
|
module Expressions
|
|
def count(distinct = false)
|
|
Nodes::Count.new [self], distinct
|
|
end
|
|
|
|
def sum
|
|
Nodes::Sum.new [self]
|
|
end
|
|
|
|
def maximum
|
|
Nodes::Max.new [self]
|
|
end
|
|
|
|
def minimum
|
|
Nodes::Min.new [self]
|
|
end
|
|
|
|
def average
|
|
Nodes::Avg.new [self]
|
|
end
|
|
|
|
def extract(field)
|
|
Nodes::Extract.new [self], field
|
|
end
|
|
end
|
|
end
|