fix a bug of rails trying to use to_ary function. #5
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https://bugs.ruby-lang.org/issues/5759
There is no to_ary function for Enum::EnumValue, but it does respond to to_ary calls with method_missing.
For example,
[STATUSES.some_enum_status].flatten
will fail onundefined method 'to_ary'
.So this is meant to indicate rails to not use to_ary on this object.
Was tested on
Rails 4.2.11 + Ruby 2.3.8