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-rw-r--r--activerecord/lib/arel/visitors/dot.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/arel/visitors/dot.rb b/activerecord/lib/arel/visitors/dot.rb
index 37803ce0c0..ecc386de07 100644
--- a/activerecord/lib/arel/visitors/dot.rb
+++ b/activerecord/lib/arel/visitors/dot.rb
@@ -234,6 +234,10 @@ module Arel # :nodoc: all
end
alias :visit_Set :visit_Array
+ def visit_Arel_Nodes_Comment(o)
+ visit_edge(o, "values")
+ end
+
def visit_edge(o, method)
edge(method) { visit o.send(method) }
end