Method fetchByCode

app/models/Classroom.js:77–84

(code, opts)

    }

    fetchByCode (code, opts) {
      const options = {
        url: _.result(this, 'url'),
        data: { code, 'with-owner': true }
      }
      _.extend(options, opts)
      return this.fetch(options)
    }

    getLevelNumber (levelID, defaultNumber, courseID) {
      // deal with duplicated levels in different course