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-rw-r--r--lib/arel/visitors/depth_first.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/arel/visitors/depth_first.rb b/lib/arel/visitors/depth_first.rb
index eab20ac831..a434f404c7 100644
--- a/lib/arel/visitors/depth_first.rb
+++ b/lib/arel/visitors/depth_first.rb
@@ -3,6 +3,7 @@ module Arel
class DepthFirst < Arel::Visitors::Visitor
def initialize block = nil
@block = block || Proc.new
+ super()
end
private
@@ -86,6 +87,7 @@ module Arel
alias :visit_Arel_Nodes_RightOuterJoin :binary
alias :visit_Arel_Nodes_TableAlias :binary
alias :visit_Arel_Nodes_Values :binary
+ alias :visit_Arel_Nodes_Union :binary
def visit_Arel_Nodes_StringJoin o
visit o.left
@@ -116,6 +118,8 @@ module Arel
alias :visit_Arel_Nodes_SqlLiteral :terminal
alias :visit_Arel_Nodes_BindParam :terminal
alias :visit_Arel_Nodes_Window :terminal
+ alias :visit_Arel_Nodes_True :terminal
+ alias :visit_Arel_Nodes_False :terminal
alias :visit_BigDecimal :terminal
alias :visit_Bignum :terminal
alias :visit_Class :terminal