Set ActiveAdmin filter default value

问题

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.

回答1:

try some like this :

filter : invisible, as: :select, collection: [["Yes", true], ["No", false]]

This works fine for me.

Obviously you can edit the "Yes" - "No" string as you want.

回答2:

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

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

来源：https://stackoverflow.com/questions/24335297/set-activeadmin-filter-default-value