def find_factories_by_class(klass)
  FactoryGirl.factories.select do |factory|
    factory.instance_variable_get(:@class_name) == klass || factory.instance_variable_get(:@name) == klass.model_name.singular.to_sym
  end
end

class ActiveRecord::Base
  [:build, :create].each do |strategy|
    define_singleton_method("#{strategy}_factories") do |attributes = {}|
      find_factories_by_class(self).map(&:name).map do |factory_name|
        FactoryGirl.send(strategy, factory_name, attributes)
      end
    end
  end
end

# delete all present records
Rails.application.eager_load!
(ActiveRecord::Base.descendants - [ActiveRecord::SchemaMigration]).each(&:delete_all)

# delete file uploads
FileUtils.rm_rf(Rails.root.join('public', 'uploads'))

# load environment-dependent seeds
load(Rails.root.join('db', 'seeds', "#{Rails.env}.rb"))