Contents

# frozen_string_literal: true

module Arel # :nodoc: all
  module Nodes
    class Function < Arel::Nodes::NodeExpression
      include Arel::WindowPredications
      include Arel::FilterPredications
      attr_accessor :expressions, :alias, :distinct

      def initialize(expr, aliaz = nil)
        super()
        @expressions = expr
        @alias       = aliaz && SqlLiteral.new(aliaz)
        @distinct    = false
      end

      def as(aliaz)
        self.alias = SqlLiteral.new(aliaz)
        self
      end

      def hash
        [@expressions, @alias, @distinct].hash
      end

      def eql?(other)
        self.class == other.class &&
          self.expressions == other.expressions &&
          self.alias == other.alias &&
          self.distinct == other.distinct
      end
      alias :== :eql?
    end

    %w{
      Sum
      Exists
      Max
      Min
      Avg
    }.each do |name|
      const_set(name, Class.new(Function))
    end
  end
end

Version data entries

83 entries across 80 versions & 9 rubygems

Version	Path
activerecord-8.0.2	lib/arel/nodes/function.rb
trusty-cms-7.0.9.1	vendor/bundle/ruby/3.3.0/gems/activerecord-7.0.8.7/lib/arel/nodes/function.rb
minato_ruby_api_client-0.2.2	vendor/bundle/ruby/3.2.0/gems/activerecord-7.1.3.4/lib/arel/nodes/function.rb
activerecord-8.0.1	lib/arel/nodes/function.rb
activerecord-8.0.0.1	lib/arel/nodes/function.rb
activerecord-7.2.2.1	lib/arel/nodes/function.rb
activerecord-7.1.5.1	lib/arel/nodes/function.rb
activerecord-7.0.8.7	lib/arel/nodes/function.rb
activerecord-8.0.0	lib/arel/nodes/function.rb
activerecord-7.2.2	lib/arel/nodes/function.rb
activerecord-7.1.5	lib/arel/nodes/function.rb
activerecord-8.0.0.rc2	lib/arel/nodes/function.rb
activerecord-7.2.1.2	lib/arel/nodes/function.rb
activerecord-7.1.4.2	lib/arel/nodes/function.rb
activerecord-7.0.8.6	lib/arel/nodes/function.rb
activerecord-8.0.0.rc1	lib/arel/nodes/function.rb
activerecord-7.2.1.1	lib/arel/nodes/function.rb
activerecord-7.1.4.1	lib/arel/nodes/function.rb
activerecord-7.0.8.5	lib/arel/nodes/function.rb
activerecord-8.0.0.beta1	lib/arel/nodes/function.rb