Set ActiveAdmin filter default value

Question

I have a simple filter in ActiveAdmin for boolean value. It looks like this

filter :invisible, as: :select

You may choose "any", "true" or "false" and it works just fine. But the default value of the filter is "any", while I need to set it to "true". How can I do it? Thank you.

Answer 1

I've found an answer. You have to use before_filter so it is as simple as

controller do
  before_filter only: :index do
    params[:q] = {invisible_eq: true} if params[:commit].blank?
  end
end