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-rw-r--r--activemodel/lib/active_model/type/decimal.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/type/decimal.rb b/activemodel/lib/active_model/type/decimal.rb
index e8ee18c00e..b37dad1c41 100644
--- a/activemodel/lib/active_model/type/decimal.rb
+++ b/activemodel/lib/active_model/type/decimal.rb
@@ -12,6 +12,10 @@ module ActiveModel
:decimal
end
+ def serialize(value)
+ cast(value)
+ end
+
def type_cast_for_schema(value)
value.to_s.inspect
end