图表，按DB的字段搜索排序

Question

我无法根据 BD 的值对实体数组进行排序，示例如下：

var storage : [Entity] = []
var date1 = Date.customDate(year: 1950, month: 7, day: 8, hour: 0, minute: 0, second: 0)

let codice : UUID =  UUID()
let user = Entity(type:"pazienti")
user["codice"] = codice.uuidString
user[“name”] = "Mario"
user[“surname”] = "Rossi"
user["date”] = date1
user["note"] = "xxxxxxxxxxxxxxx xxxxxxx"
storage.append(user)
db.sync()

var appoggio : [Entity] = []
var search = Search<Entity>(graph: db).for(types: "pazienti")
appoggio = search.sync()

storage = appoggio.sorted(by: >)

我需要根据字段 [“surname”] 对数组进行排序，我该怎么做？ 谢谢

Answer 1

您可以使用sorted 函数进行排序，例如：

appoggio.sorted(by: { (a, b) -> Bool in return a["prop"] as! Int < b["prop"] as! Int })

您需要将属性名称和类型更改为适当的名称。