announcement-test/app/models/announcement_setting.rb

class AnnouncementSetting
	include Mongoid::Document
	include Mongoid::Timestamps

	field :top_limit, type: Integer, :default => 0
	field :pro_enabled, type: Boolean, :default => false

	def self.check_limit_for_user(user_id, b_id = nil)
		limit = self.first.top_limit rescue 0
		return true if limit == 0
		count = Bulletin.where(:is_top => true, :create_user_id => user_id, :id.ne => b_id).count
		return count < limit
	end

	def self.is_pro?
		self.first.pro_enabled rescue false
	end
end