Module: RailsAdmin::Config::Actions::SingletonAwareIndex

Defined in:

lib/rails_admin/config/actions/singleton_aware_index.rb

Constant Summary

PATCH =

Proc.new do

  # Hide this index action when dealing with a singleton model
  visible do
    bindings[:abstract_model].model.included_modules.exclude? ActiveRecord::Singleton
  end

  # Store reference to the original controller procedure
  original_controller = controller

  register_instance_option :controller do
    abstract_model = bindings[:abstract_model]
    model = abstract_model.model

    # Determine whether this is a singleton model
    if model.included_modules.include? ActiveRecord::Singleton
      Proc.new do

        # Redirect to new/show view depending on whether a record already exists
        if singleton = model.first
          redirect_to show_path abstract_model.to_param, singleton.id
        else
          redirect_to new_path abstract_model.to_param
        end
      end
    else
      original_controller
    end
  end

end