Active Admin scopes for each instance of a related model

Question

I have an issue with a dynamic active admin scope. I am attempting to create a scope for each \"manager\" of a \"project\" in my app. However, the scopes don\'t seem to up

Answer 1

Here is my optimized solution based on Brant Sterling Wedel's answer.

This solution contains the following additional enhancements:

• Removes any unused scopes
• Allows to set default scope

### Default scope must be set in advance
scope "Jeff", default: true do |x| 
  x.joins(:manager).where(manager: {name: "Jeff"})
end

controller do

  before_action :reload_scopes, only: :index

  def reload_scopes
    resource_config = active_admin_config

    resource_config.instance_variable_set(:@scopes, [
      resource_config.scopes.first ### Default scope
    ])

    Manager.all.each do |m|
      next if resource_config.scopes.first.name ==  m.name

      resource_config.scopes << ActiveAdmin::Scope.new(m.name){|scope| scope.where(manager_id: m.id) }
    end
  end

end