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-rw-r--r--activemodel/lib/active_model/type/boolean.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/type/boolean.rb b/activemodel/lib/active_model/type/boolean.rb
index bcdbab0343..f6c6efbc87 100644
--- a/activemodel/lib/active_model/type/boolean.rb
+++ b/activemodel/lib/active_model/type/boolean.rb
@@ -20,6 +20,10 @@ module ActiveModel
:boolean
end
+ def serialize(value) # :nodoc:
+ cast(value)
+ end
+
private
def cast_value(value)