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rails--rails/activerecord/lib/arel/nodes/casted.rb
Ryuta Kamizono 7f856c3c8d Consolidate the duplicated code that building range predicate
This slightly change the code in the Arel to allow +/-INFINITY as open
ended since the Active Record expects that behavior. See 5ecbeda.
2019-01-08 16:45:17 +09:00

50 lines
1.2 KiB
Ruby

# frozen_string_literal: true
module Arel # :nodoc: all
module Nodes
class Casted < Arel::Nodes::NodeExpression # :nodoc:
attr_reader :val, :attribute
def initialize(val, attribute)
@val = val
@attribute = attribute
super()
end
def nil?; @val.nil?; end
def hash
[self.class, val, attribute].hash
end
def eql?(other)
self.class == other.class &&
self.val == other.val &&
self.attribute == other.attribute
end
alias :== :eql?
end
class Quoted < Arel::Nodes::Unary # :nodoc:
alias :val :value
def nil?; val.nil?; end
def infinite?
value.respond_to?(:infinite?) && value.infinite?
end
end
def self.build_quoted(other, attribute = nil)
case other
when Arel::Nodes::Node, Arel::Attributes::Attribute, Arel::Table, Arel::Nodes::BindParam, Arel::SelectManager, Arel::Nodes::Quoted, Arel::Nodes::SqlLiteral
other
else
case attribute
when Arel::Attributes::Attribute
Casted.new other, attribute
else
Quoted.new other
end
end
end
end
end