SwiftData新增枚举类型报错

SwiftData新增枚举类型：

@Model
class SavingsRecord {
    var amount: Double = 0.0
    var date: Date = Date()
    var saveMoney: Bool = false
    var note: String? = nil
    var type: SavingsRecordType = SavingsRecordType.manual  // 新增枚举
}

Xcode报错：

/var/folders/1y/t7s8thm536j0hgvd3fhdp7pr0000gn/T/swift-generated-sources/@__swiftmacro_6piglet13SavingsRecordC4type18_PersistedPropertyfMa_.swift:4:23 No exact matches in call to instance method 'setValue'
/var/folders/1y/t7s8thm536j0hgvd3fhdp7pr0000gn/T/swift-generated-sources/@__swiftmacro_6piglet13SavingsRecordC4type18_PersistedPropertyfMa_.swift:9:21 No exact matches in call to instance method 'getValue'
/var/folders/1y/t7s8thm536j0hgvd3fhdp7pr0000gn/T/swift-generated-sources/@__swiftmacro_6piglet13SavingsRecordC4type18_PersistedPropertyfMa_.swift:13:18 No exact matches in call to instance method 'setValue'

SwiftData要求自定义类型必须符合可持久化协议，而枚举必须满足以下条件：

1、枚举必须Codable

2、枚举必须RawRepresentable，并且RawValue是SwiftData支持的基础类型（如String、Int）。

解决方案：

enum SavingsRecordType: String,Identifiable {
    var id: String {
        self.rawValue
    }
    case manual     // 用户手动存/取
    case automatic  // 系统按频率自动执行的定期存款
}

@Model
class SavingsRecord {
    var amount: Double = 0.0
    var date: Date = Date()
    var saveMoney: Bool = false
    var note: String? = nil
    var type: String = SavingsRecordType.manual.rawValue  // 新增枚举
}

将枚举类型改为String或Int类型，枚举遵循String或Int协议，使用rawValue存储枚举值。