aboutsummaryrefslogtreecommitdiffstats
path: root/lib/arel/nodes/extract.rb
blob: 7ed678ca08b9e943ba0c8b5d2c106086e8fab120 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
module Arel
  module Nodes
    class Extract < Arel::Nodes::Unary
      include Arel::AliasPredication
      include Arel::Predications

      attr_accessor :field

      def initialize expr, field
        super(expr)
        @field = field
      end

      def hash
        super ^ @field.hash
      end

      def eql? other
        super &&
          self.field == other.field
      end
      alias :== :eql?
    end
  end
end