def findByUsername(username: String): User = {
    val mongoConnection = MongoConnection()
    val mongoCollection = mongoConnection("tassili")("users")

    val mongoObject = mongoCollection.findOne(MongoDBObject("username" -> username))

    val user = new User
    for(x <- mongoObject) {
      user.id = x.getAs[ObjectId]("_id").get
      user.username = x.getAs[String]("username").get
      user.fullname = x.getAs[String]("fullname").get
      user.passwordHash = x.getAs[String]("passwordHash").get
      user.role = x.getAs[String]("role").get
    }

    return user
  }