CoreDataStore
示例
要运行示例项目，请克隆仓库，然后首先从 Example 目录中运行 pod install。
要求
安装
CoreDataStore 目前不能通过 CocoaPods 公共仓库获取。要安装它，只需将以下行添加到您的 Podfile 中
pod 'CoreDataStore'示例
初始化存储
guard let modelURL = CoreDataStore.defaultModelURL() else { return }
guard let storeURL = CoreDataStore.defaultStoreURL() else { return }
let store = CoreDataStore(
modelURL: modelURL,
storeType: .sqlite(
storeURL: storeURL,
fileProtection: .complete
)
)
store.initialize { (result) in
switch result {
case .success:
// Now - use store
default: break
}
}扩展某些类型（这里为 User）以由某些存储表示（例如，您有某些 CDUser CoreData 实体）进行存储
struct User {
var id = UUID().uuidString
var firstName = UUID().uuidString
}
extension User: CoreDataStoreRepresentable, StoreIdentifiable {
typealias RepresentationRequest = NSFetchRequest<CDUser>
static var identifierKey: String { "id" }
static func from(_ representation: CDUser, in context: NSManagedObjectContext) throws -> User {
.init(id: representation.id ?? "", firstName: representation.firstName ?? "")
}
func update(_ representation: CDUser, in context: NSManagedObjectContext) throws {
representation.id = id
representation.firstName = firstName
}
}管理存储数据
let transaction = store.createTransaction()
do {
try transaction.run { _, context in
print("Existed: \n \(try context.fetch(User.self))")
try context.delete(User.self)
print("After delete: \n \(try context.fetch(User.self))")
try context.insert([ User(), User(), User(id: "1", firstName: "Special") ])
print("After insert: \n \(try context.fetch(User.self))")
let special = try context.fetch(User.self, byID: "1")
print(String(describing: special))
}
transaction.commit()
} catch {
transaction.rollback()
}作者
科舒布
许可
CoreDataStore可以在MIT许可下使用。有关更多信息，请参阅LICENSE文件。