Method userPlaytimeString

app/views/courses/ClassroomView.js:223–228

(user)

    }

    userPlaytimeString (user) {
      if (user.sessions == null) { return '' }
      const playtime = _.reduce(user.sessions.pluck('playtime'), (s1, s2) => (s1 || 0) + (s2 || 0))
      if (!playtime) { return '' }
      return moment.duration(playtime, 'seconds').humanize()
    }

    classStats () {
      const stats = {}