# app/models/post.rb
class Post < ApplicationRecord
  acts_as_taggable_on :tags
end
```

That will let Avo know which attribute should be used to fill with the user's tags.

:::info Related
You can set up the tags as a resource using this guide.
:::

## Array fields

We haven't tested all the scenarios, but the tags field should play nicely with any array fields provided by Rails.

```ruby{10-12,14-16}