-> description

Changes the text displayed under the association name.

Default value

nil

Possible values

Any string or any zero arity lambda function.

Within lambda, you have access to query and all attributes of Avo::ExecutionContext.

Evaluated on page load, even with loading: :manual

The description lambda is evaluated to render the association header — including the placeholder shown for a loading: :manual association. So a lambda that touches the database (e.g. -> { "#{query.count} posts" }) runs on every page load, before the user clicks Load. If you reached for loading: :manual to defer that query, keep the description cheap (or omit it) — only the framed content is fetched on demand.