<https://coderwall.com/p/ykpxkg/columns-for-serialized-attributes-in-rails-models-need-to-be-type-text>
<http://schema.org/keywords>
"rails, serialized columns"
<https://coderwall.com/p/ykpxkg/columns-for-serialized-attributes-in-rails-models-need-to-be-type-text>