class HpsClass
  include Mongoid::Document
  include Mongoid::Timestamps
  include OrbitTag::Taggable
  include OrbitCategory::Categorizable 
  include Slug

  mount_uploader :course_pic, ImageUploader
  field :title, as: :slug_title, localize: true

  has_many :hps_lectures, :autosave => true, :dependent => :destroy

  def get_runtime
    hours = 0
    mins = 0
    self.hps_lectures.pluck(:runtime_hours, :runtime_mins).each do |lec|
      hours = hours + lec.first
      mins = mins + lec.last
    end
    ht = mins / 60
    mt = mins - (ht * 60)
    hours = ht + hours
    return hours.to_s + " " + I18n.t("hps_learning.hours") + " " + mt.to_s + " " + I18n.t("hps_learning.minutes")
  end
end