External image ​

You may have a field in the database that has the URL to an image, and you want to display that in Avo. That is where the ExternalImage field comes in to help.

It will take that value, insert it into an image_tag, and display it on the Index and Show views.

field :logo, as: :external_image

Options ​

-> width

-> height

-> radius

-> link_to_record

Use computed values ​

Another common scenario is to use a value from your database and create a new URL using a computed value.

field :logo, as: :external_image do
  "//logo.clearbit.com/#{URI.parse(record.url).host}?size=180"
rescue
  nil
end

Use in the Grid cover position ​

Another common place you could use it is in the grid :cover position.

cover :logo, as: :external_image, link_to_record: true do
  "//logo.clearbit.com/#{URI.parse(record.url).host}?size=180"
rescue
  nil
end