1 files changed, 5 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
index c87422fe32..c64cf27797 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
@@ -7,7 +7,11 @@ module ActiveRecord
             :json
           end
 
-          def type_cast_for_write(value)
+          def type_cast_from_user(value)
+            type_cast(type_cast_for_database(value))
+          end
+
+          def type_cast_for_database(value)
             ConnectionAdapters::PostgreSQLColumn.json_to_string(value)
           end