在解析swift3

Question

在这里，我过滤了所选唯一代码下所有设施的所有预订。所以现在我有一系列预订所有预订领域的设施，但现在我想知道所选预订的设施名称参考Data parsing in model class from firebase

var booking_arr = NSMutableArray()

func filterBooking() {
    self.booking_arr.removeAllObjects()
    var bookArr:[FacilityBooking] = []
    user_uid = "iBr9DOlpGma5t5apgl4JM9cO7w62"
    for item in self.facility_id_Arr {
        for item2 in item.facilities {
            if (item2.uid == user_uid) {
                bookArr.append(item2)
            }
        }
    }
    self.booking_arr.addObjects(from: bookArr)
}