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SimpleEnum::Persistence

SimpleEnum::Persistence is extension of SimpleEnum, which brings data persistence support to SimpleEnum. Sometimes, we need to use one of our Model as enum data source, in order to add/remove enum type dynamically, SimpleEnum::Persistence is built for this!

Why not ActiveRecord association?

1. SimpleEnum is a great library, which brings a lot of benefits to create enum-like fields;

2. SimpleEnum::Persistence cache all enums in memory for better performance, and it will reload when database changes (with after_save callback).

ActiveRecord Quick start

Let's say we have a model Tag, we want to use it as enum data, just add this to a model:

class Post
  as_enum :tag, Tag, persistence: true
end

Then SimpleEnum will use Tag.all as enum data, tag.name as enum key and tag.id as enum value, if we want to use a field rather than :name as enum key:

class Post
  as_enum :tag, Tag, persistence: { key: :name, value: :id }
end

License

The gem is available as open source under the terms of the MIT License.