66b19b5dec
When using PostgreSQL, it's useful to be able to specify NULLS FIRST and NULLS LAST on ordered columns. With this commit you can do that now, as in: ```ruby User.arel_table[:first_name].desc.nulls_last ```
45 lines
704 B
Ruby
45 lines
704 B
Ruby
# frozen_string_literal: true
|
|
|
|
module Arel # :nodoc: all
|
|
module Nodes
|
|
class Unary < Arel::Nodes::NodeExpression
|
|
attr_accessor :expr
|
|
alias :value :expr
|
|
|
|
def initialize(expr)
|
|
super()
|
|
@expr = expr
|
|
end
|
|
|
|
def hash
|
|
@expr.hash
|
|
end
|
|
|
|
def eql?(other)
|
|
self.class == other.class &&
|
|
self.expr == other.expr
|
|
end
|
|
alias :== :eql?
|
|
end
|
|
|
|
%w{
|
|
Bin
|
|
Cube
|
|
DistinctOn
|
|
Group
|
|
GroupingElement
|
|
GroupingSet
|
|
Lateral
|
|
Limit
|
|
Lock
|
|
Not
|
|
Offset
|
|
On
|
|
OptimizerHints
|
|
RollUp
|
|
}.each do |name|
|
|
const_set(name, Class.new(Unary))
|
|
end
|
|
end
|
|
end
|