Preview

The Preview field adds a tiny icon to each row on the Index view that, when hovered, it will display a preview popup with more information regarding that record.

field :preview, as: :preview

Define the fields

The fields shown in the preview popup are configured similarly to how you configure the visibility in the different views.

When you want to display a field in the preview popup simply call the show_on :preview option on the field.

  field :name, as: :text, show_on :preview

Authorization

Since version 3.18.0 the preview request authorization is controller with the preview? policy method.