{"id":3522,"date":"2024-05-28T23:49:24","date_gmt":"2024-05-28T20:49:24","guid":{"rendered":"https:\/\/demensdeum.com\/blog\/?p=3522"},"modified":"2024-12-16T22:32:13","modified_gmt":"2024-12-16T19:32:13","slug":"crud-repository","status":"publish","type":"post","link":"https:\/\/demensdeum.com\/blog\/zh\/2024\/05\/28\/crud-repository\/","title":{"rendered":"\u589e\u5220\u6539\u67e5\u5b58\u50a8\u5e93"},"content":{"rendered":"

\u5728\u8fd9\u7bc7\u7b14\u8bb0\u4e2d\uff0c\u6211\u5c06\u63cf\u8ff0\u8457\u540d\u7684\u7ecf\u5178 CRUD \u6a21\u5f0f\u7684\u57fa\u672c\u539f\u7406\uff0c\u4ee5\u53ca Swift \u8bed\u8a00\u7684\u5b9e\u73b0\u3002 Swift \u662f\u4e00\u79cd\u5f00\u653e\u7684\u8de8\u5e73\u53f0\u8bed\u8a00\uff0c\u9002\u7528\u4e8e Windows\u3001Linux\u3001macOS\u3001iOS\u3001Android\u3002<\/p>\n

\u6709\u8bb8\u591a\u89e3\u51b3\u65b9\u6848\u53ef\u4ee5\u62bd\u8c61\u6570\u636e\u5b58\u50a8\u548c\u5e94\u7528\u7a0b\u5e8f\u903b\u8f91\u3002\u5176\u4e2d\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u662f CRUD \u65b9\u6cd5\uff0c\u5b83\u662f C# \u7684\u7f29\u5199\u3002\u521b\u5efa\uff0cR-\u8bfb\u53d6\uff0cU –\u66f4\u65b0\uff0cD–\u5220\u9664\u3002
\u901a\u5e38\uff0c\u6b64\u539f\u5219\u662f\u901a\u8fc7\u5b9e\u73b0\u6570\u636e\u5e93\u63a5\u53e3\u6765\u5b9e\u73b0\u7684\uff0c\u5176\u4e2d\u4f7f\u7528\u552f\u4e00\u6807\u8bc6\u7b26\uff08\u4f8b\u5982 id\uff09\u6765\u64cd\u4f5c\u5143\u7d20\u3002\u4e3a\u6bcf\u4e2a\u5b57\u6bcd\u521b\u5efa\u4e00\u4e2a\u754c\u9762 CRUD –\u521b\u5efa\uff08\u5bf9\u8c61\uff0cid\uff09\uff0c\u8bfb\u53d6\uff08id\uff09\uff0c\u66f4\u65b0\uff08\u5bf9\u8c61\uff0cid\uff09\uff0c\u5220\u9664\uff08\u5bf9\u8c61\uff0cid\uff09\u3002
\u5982\u679c\u4e00\u4e2a\u5bf9\u8c61\u5728\u5176\u5185\u90e8\u5305\u542b\u4e00\u4e2a id\uff0c\u90a3\u4e48 id \u53c2\u6570\u53ef\u4ee5\u4ece\u65b9\u6cd5\uff08Create\u3001Update\u3001Delete\uff09\u4e2d\u7701\u7565\uff0c\u56e0\u4e3a\u6574\u4e2a\u5bf9\u8c61\u53ca\u5176\u5b57\u6bb5 – \u90fd\u88ab\u4f20\u9012\u5230\u90a3\u91cc\u3002 ID\u3002\u4f46\u5bf9\u4e8e– Read\u9700\u8981id\uff0c\u56e0\u4e3a\u6211\u4eec\u60f3\u901a\u8fc7id\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u4e00\u4e2a\u5bf9\u8c61\u3002<\/p>\n

\u6240\u6709\u540d\u5b57\u5747\u4e3a\u865a\u6784<\/p>\n

\u8ba9\u6211\u4eec\u5047\u8bbe\u4e00\u4e2a\u5047\u8bbe\u7684 AssistantAI \u5e94\u7528\u7a0b\u5e8f\u662f\u4f7f\u7528\u514d\u8d39\u7684 EtherRelm \u6570\u636e\u5e93 SDK \u521b\u5efa\u7684\uff0c\u96c6\u6210\u5f88\u7b80\u5355\uff0cAPI \u975e\u5e38\u65b9\u4fbf\uff0c\u56e0\u6b64\u8be5\u5e94\u7528\u7a0b\u5e8f\u88ab\u53d1\u5e03\u5230\u5e02\u573a\u3002
\u7a81\u7136\uff0cSDK \u5f00\u53d1\u8005 EtherRelm \u51b3\u5b9a\u4ed8\u8d39\uff0c\u5c06\u4ef7\u683c\u5b9a\u4e3a\u6bcf\u4e2a\u5e94\u7528\u7a0b\u5e8f\u7528\u6237\u6bcf\u5e74 100 \u7f8e\u5143\u3002
\u4ec0\u4e48\uff1f\u662f\u7684\uff01 AssistantAI\u7684\u5f00\u53d1\u8005\u73b0\u5728\u5e94\u8be5\u505a\u4ec0\u4e48\uff0c\u56e0\u4e3a\u4ed6\u4eec\u5df2\u7ecf\u6709100\u4e07\u6d3b\u8dc3\u7528\u6237\u4e86\uff01\u652f\u4ed8\u4e00\u4ebf\u7f8e\u5143\uff1f
\u76f8\u53cd\uff0c\u4f1a\u505a\u51fa\u8bc4\u4f30\u5c06\u5e94\u7528\u7a0b\u5e8f\u8f6c\u79fb\u5230\u5e73\u53f0\u672c\u673a RootData \u6570\u636e\u5e93\u7684\u51b3\u5b9a\uff1b\u6839\u636e\u7a0b\u5e8f\u5458\u7684\u8bf4\u6cd5\uff0c\u8fd9\u6837\u7684\u8f6c\u79fb\u5c06\u9700\u8981\u5927\u7ea6\u516d\u4e2a\u6708\u7684\u65f6\u95f4\uff0c\u8fd9\u8fd8\u4e0d\u8003\u8651\u5e94\u7528\u7a0b\u5e8f\u4e2d\u65b0\u529f\u80fd\u7684\u5b9e\u73b0\u3002\u7ecf\u8fc7\u6df1\u601d\u719f\u8651\uff0c\u51b3\u5b9a\u4ece\u5e02\u573a\u4e0a\u5220\u9664\u8be5\u5e94\u7528\u7a0b\u5e8f\uff0c\u5e76\u5728\u53e6\u4e00\u4e2a\u5e26\u6709\u5185\u7f6eBueMS\u6570\u636e\u5e93\u7684\u514d\u8d39\u8de8\u5e73\u53f0\u6846\u67b6\u4e0a\u91cd\u5199\u5b83\uff0c\u8fd9\u5c06\u89e3\u51b3\u4ed8\u8d39\u6570\u636e\u5e93\u7684\u95ee\u9898+\u5c06\u7b80\u5316\u5728\u5176\u4ed6\u5e73\u53f0\u4e0a\u7684\u5f00\u53d1\u3002
\u4e00\u5e74\u540e\uff0c\u8be5\u5e94\u7528\u7a0b\u5e8f\u5728 BueMS \u4e2d\u88ab\u91cd\u5199\uff0c\u4f46\u7a81\u7136\u6846\u67b6\u5f00\u53d1\u4eba\u5458\u51b3\u5b9a\u5bf9\u5176\u8fdb\u884c\u4ed8\u8d39\u3002\u4e8b\u5b9e\u8bc1\u660e\uff0c\u56e2\u961f\u5df2\u7ecf\u4e24\u6b21\u9677\u5165\u540c\u4e00\u4e2a\u9677\u9631\uff0c\u7b2c\u4e8c\u6b21\u662f\u5426\u80fd\u6446\u8131\u56f0\u5883\u5c31\u5b8c\u5168\u662f\u53e6\u5916\u4e00\u56de\u4e8b\u4e86\u3002<\/p>\n

\u62bd\u8c61\u6765\u6551\u63f4<\/p>\n

\u5982\u679c\u5f00\u53d1\u4eba\u5458\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u63a5\u53e3\u7684\u62bd\u8c61\uff0c\u8fd9\u4e9b\u95ee\u9898\u672c\u6765\u53ef\u4ee5\u907f\u514d\u3002 OOP \u7684\u4e09\u5927\u652f\u67f1\u591a\u6001\u3001\u5c01\u88c5\u3001\u7ee7\u627f\uff0c\u4e0d\u4e45\u524d\u4ed6\u4eec\u8fd8\u6dfb\u52a0\u4e86\u53e6\u4e00\u4e2a\u201c\u591a\u6001\u201d\u3001\u201c\u5c01\u88c5\u201d\u3001\u201c\u7ee7\u627f\u201d\u3002\u62bd\u8c61\u3002
\u6570\u636e\u62bd\u8c61\u5141\u8bb8\u60a8\u7528\u6700\u5c11\u7684\u7ec6\u8282\u4ee5\u4e00\u822c\u672f\u8bed\u63cf\u8ff0\u60f3\u6cd5\u548c\u6a21\u578b\uff0c\u540c\u65f6\u8db3\u591f\u51c6\u786e\u4ee5\u5b9e\u73b0\u7528\u4e8e\u89e3\u51b3\u4e1a\u52a1\u95ee\u9898\u7684\u7279\u5b9a\u5b9e\u73b0\u3002
\u5982\u4f55\u62bd\u8c61\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u4f7f\u5f97\u5e94\u7528\u903b\u8f91\u4e0d\u4f9d\u8d56\u4e8e\u5b83\uff1f\u6211\u4eec\u4f7f\u7528 CRUD \u65b9\u6cd5\uff01<\/p>\n

\u7b80\u5316\u7684 UML CRUD \u56fe\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

\"\"<\/p>\n

\u865a\u6784\u7684 EtherRelm \u6570\u636e\u5e93\u793a\u4f8b\uff1a<\/p>\n

\"\"<\/p>\n

\u771f\u5b9e SQLite \u6570\u636e\u5e93\u7684\u793a\u4f8b\uff1a<\/p>\n

\"\"<\/p>\n

\u6b63\u5982\u60a8\u5df2\u7ecf\u6ce8\u610f\u5230\u7684\uff0c\u5f53\u60a8\u5207\u6362\u6570\u636e\u5e93\u65f6\uff0c\u53ea\u6709\u4e0e\u5e94\u7528\u7a0b\u5e8f\u4ea4\u4e92\u7684 CRUD \u63a5\u53e3\u53d1\u751f\u53d8\u5316\u3002 CRUD \u662f GoF \u6a21\u5f0f\u7684\u5b9e\u73b0\u9002\u914d\u5668\uff0c\u56e0\u4e3a\u4f7f\u7528\u5b83\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u5e94\u7528\u7a0b\u5e8f\u63a5\u53e3\u9002\u5e94\u4efb\u4f55\u6570\u636e\u5e93\u5e76\u7ec4\u5408\u4e0d\u517c\u5bb9\u7684\u63a5\u53e3\u3002
\u6587\u5b57\u90fd\u662f\u7a7a\u7684\uff0c\u7ed9\u6211\u770b\u770b\u4ee3\u7801
\u4e3a\u4e86\u7528\u7f16\u7a0b\u8bed\u8a00\u5b9e\u73b0\u62bd\u8c61\uff0c\u4f7f\u7528\u63a5\u53e3\/\u534f\u8bae\/\u62bd\u8c61\u7c7b\u3002\u6240\u6709\u8fd9\u4e9b\u90fd\u662f\u540c\u4e00\u4e2a\u987a\u5e8f\u7684\u73b0\u8c61\uff0c\u4f46\u662f\uff0c\u5728\u9762\u8bd5\u4e2d\u4f60\u53ef\u80fd\u4f1a\u88ab\u8981\u6c42\u8bf4\u51fa\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\uff0c\u6211\u4e2a\u4eba\u8ba4\u4e3a\u8fd9\u6ca1\u6709\u591a\u5927\u610f\u4e49\uff0c\u56e0\u4e3a\u4f7f\u7528\u7684\u552f\u4e00\u76ee\u7684\u662f\u5b9e\u73b0\u6570\u636e\u62bd\u8c61\uff0c\u5426\u5219\u5c31\u662f\u6d4b\u8bd5\u53d7\u8bbf\u8005\u7684\u8bb0\u5fc6\u529b\u3002
CRUD\u901a\u5e38\u662f\u5728Repository\u6a21\u5f0f\u7684\u6846\u67b6\u5185\u5b9e\u73b0\u7684\uff0c\u4f46\u662f\uff0c\u5b58\u50a8\u5e93\u53ef\u80fd\u4f1a\u4e5f\u53ef\u80fd\u4e0d\u4f1a\u5b9e\u73b0CRUD\u63a5\u53e3\uff0c\u8fd9\u5b8c\u5168\u53d6\u51b3\u4e8e\u5f00\u53d1\u4eba\u5458\u7684\u806a\u660e\u624d\u667a\u3002<\/p>\n

\u8003\u8651\u4e00\u4e0b Book \u7ed3\u6784\u5b58\u50a8\u5e93\u7684\u76f8\u5f53\u5178\u578b\u7684 Swift \u4ee3\u7801\uff0c\u76f4\u63a5\u4f7f\u7528 UserDefaults \u6570\u636e\u5e93\uff1a<\/p>\n

\n
\n
\nstruct Book: Codable {\n\tlet title: String\n\tlet author: String\n}\n\nclass BookRepository {\n\tfunc save(book: Book) {\n    \t\tlet record = try! JSONEncoder().encode(book)\n    \t\tUserDefaults.standard.set(record, forKey: book.title)\n\t}\n    \n\tfunc get(bookWithTitle title: String) -> Book? {\n    \t\tguard let data = UserDefaults.standard.data(forKey: title) else { return nil }\n    \t\tlet book = try! JSONDecoder().decode(Book.self, from: data)\n    \t\treturn book\n\t}\n    \n\tfunc delete(book: Book) {\n    \t\tUserDefaults.standard.removeObject(forKey: book.title)\n\t}\n}\n\nlet book = Book(title: \"Fear and Loathing in COBOL\", author: \"Sir Edsger ZX Spectrum\")\nlet repository = BookRepository()\nrepository.save(book: book)\nprint(repository.get(bookWithTitle: book.title)!)\nrepository.delete(book: book)\nguard repository.get(bookWithTitle: book.title) == nil else {\n\tprint(\"Error: can't delete Book from repository!\")\n\texit(1)\n}\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u770b\u4f3c\u7b80\u5355\uff0c\u4f46\u6211\u4eec\u6765\u7edf\u8ba1\u4e00\u4e0b\u8fdd\u53cd DRY\uff08Do not Repeat Yourself\uff09\u539f\u5219\u7684\u6b21\u6570\u4ee5\u53ca\u4ee3\u7801\u7684\u8fde\u8d2f\u6027\uff1a
\u4e0e UserDefaults \u6570\u636e\u5e93\u7684\u8fde\u63a5
\u4e0e JSON \u7f16\u7801\u5668\u548c\u89e3\u7801\u5668\u7684\u8fde\u63a5 – JSONEncoder\u3001JSONDecoder
\u4e0e Book \u7ed3\u6784\u8fde\u63a5\uff0c\u4f46\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u62bd\u8c61\u5b58\u50a8\u5e93\uff0c\u4ee5\u514d\u4e3a\u6211\u4eec\u5c06\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684\u6bcf\u4e2a\u7ed3\u6784\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8\u5e93\u7c7b\uff08DRY \u8fdd\u89c4\uff09<\/p>\n
\u6211\u7ecf\u5e38\u770b\u5230\u8fd9\u79cdCRUD\u5b58\u50a8\u5e93\u4ee3\u7801\uff0c\u5b83\u53ef\u4ee5\u4f7f\u7528\uff0c\u4f46\u662f\u9ad8\u8026\u5408\u548c\u91cd\u590d\u7684\u4ee3\u7801\u5bfc\u81f4\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u5b83\u7684\u652f\u6301\u4f1a\u53d8\u5f97\u975e\u5e38\u590d\u6742\u3002\u5f53\u5c1d\u8bd5\u5207\u6362\u5230\u53e6\u4e00\u4e2a\u6570\u636e\u5e93\u65f6\uff0c\u6216\u8005\u5f53\u66f4\u6539\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u521b\u5efa\u7684\u6240\u6709\u5b58\u50a8\u5e93\u4e2d\u4f7f\u7528\u6570\u636e\u5e93\u7684\u5185\u90e8\u903b\u8f91\u65f6\uff0c\u8fd9\u4e00\u70b9\u5c24\u5176\u660e\u663e\u3002
\u4e0d\u8981\u91cd\u590d\u4ee3\u7801\uff0c\u800c\u662f\u4fdd\u6301\u9ad8\u8026\u5408\u5ea6\u2014\u2014\u8ba9\u6211\u4eec\u4e3aCRUD\u5b58\u50a8\u5e93\u7f16\u5199\u4e00\u4e2a\u534f\u8bae\uff0c\u4ece\u800c\u62bd\u8c61\u6570\u636e\u5e93\u63a5\u53e3\u548c\u5e94\u7528\u7a0b\u5e8f\u4e1a\u52a1\u903b\u8f91\uff0c\u5c0a\u91cdDRY\uff0c\u5b9e\u73b0\u4f4e\u8026\u5408\uff1a<\/p>\n
\n
\n
    typealias Item = Codable\n    typealias ItemIdentifier = String\n    \n    func create<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier, item: T) async throws\n    func read<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier) async throws -> T\n    func update<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier, item: T) async throws\n    func delete(id: CRUDRepository.ItemIdentifier) async throws\n}\n<\/code><\/pre>\n<\/div>\n<\/div>\n
CRUDRepository \u534f\u8bae\u63cf\u8ff0\u4e86\u7528\u4e8e\u8fdb\u4e00\u6b65\u5b9e\u73b0\u7279\u5b9a CRUD \u5b58\u50a8\u5e93\u7684\u63a5\u53e3\u548c\u5173\u8054\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
\u63a5\u4e0b\u6765\u6211\u4eec\u5c06\u4e3aUserDefaults\u6570\u636e\u5e93\u7f16\u5199\u4e00\u4e2a\u5177\u4f53\u7684\u5b9e\u73b0\uff1a<\/p>\n
\n
\n
    private typealias RecordIdentifier = String\n    \n    let tableName: String\n    let dataTransformer: DataTransformer\n    \n    init(\n   \t tableName: String = \"\",\n   \t dataTransformer: DataTransformer = JSONDataTransformer()\n    ) {\n   \t self.tableName = tableName\n   \t self.dataTransformer = dataTransformer\n    }\n    \n    private func key(id: CRUDRepository.ItemIdentifier) -> RecordIdentifier {\n   \t \"database_\\(tableName)_item_\\(id)\"\n    }\n   \t \n    private func isExists(id: CRUDRepository.ItemIdentifier) async throws -> Bool {\n   \t UserDefaults.standard.data(forKey: key(id: id)) != nil\n    }\n    \n    func create<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier, item: T) async throws {\n   \t let data = try await dataTransformer.encode(item)\n   \t UserDefaults.standard.set(data, forKey: key(id: id))\n   \t UserDefaults.standard.synchronize()\n    }\n    \n    func read<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier) async throws -> T {\n   \t guard let data = UserDefaults.standard.data(forKey: key(id: id)) else {\n   \t\t throw CRUDRepositoryError.recordNotFound(id: id)\n   \t }\n   \t let item: T = try await dataTransformer.decode(data: data)\n   \t return item\n    }\n    \n    func update<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier, item: T) async throws {\n   \t guard try await isExists(id: id) else {\n   \t\t throw CRUDRepositoryError.recordNotFound(id: id)\n   \t }\n   \t let data = try await dataTransformer.encode(item)\n   \t UserDefaults.standard.set(data, forKey: key(id: id))\n   \t UserDefaults.standard.synchronize()\n    }\n    \n    func delete(id: CRUDRepository.ItemIdentifier) async throws {\n   \t guard try await isExists(id: id) else {\n   \t\t throw CRUDRepositoryError.recordNotFound(id: id)\n   \t }\n   \t UserDefaults.standard.removeObject(forKey: key(id: id))\n   \t UserDefaults.standard.synchronize()\n    }\n}\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u4ee3\u7801\u770b\u8d77\u6765\u5f88\u957f\uff0c\u4f46\u5305\u542b\u4e86\u5305\u542b\u677e\u6563\u8026\u5408\u7684 CRUD \u5b58\u50a8\u5e93\u7684\u5b8c\u6574\u5177\u4f53\u5b9e\u73b0\uff0c\u8be6\u7ec6\u4fe1\u606f\u5982\u4e0b\u3002
\u6dfb\u52a0\u4e86\u7c7b\u578b\u522b\u540d\u4ee5\u7528\u4e8e\u4ee3\u7801\u7684\u81ea\u6587\u6863\u5316\u3002
\u5f31\u8026\u5408\u548c\u5f3a\u8026\u5408
\u4e0e\u7279\u5b9a\u7ed3\u6784 (struct) \u7684\u5206\u79bb\u662f\u4f7f\u7528\u901a\u7528 T \u5b9e\u73b0\u7684\uff0c\u800c\u901a\u7528 T \u53c8\u5fc5\u987b\u5b9e\u73b0\u53ef\u7f16\u7801\u534f\u8bae\u3002 Codable \u5141\u8bb8\u60a8\u4f7f\u7528\u5b9e\u73b0 TopLevelEncoder \u548c TopLevelDecoder \u534f\u8bae\u7684\u7c7b\uff08\u4f8b\u5982 JSONEncoder \u548c JSONDecoder\uff09\u6765\u8f6c\u6362\u7ed3\u6784\uff0c\u5f53\u4f7f\u7528\u57fa\u672c\u7c7b\u578b\uff08Int\u3001String\u3001Float \u7b49\uff09\u65f6\uff0c\u65e0\u9700\u7f16\u5199\u989d\u5916\u7684\u4ee3\u7801\u6765\u8f6c\u6362\u7ed3\u6784\u3002<\/ p><\/p>\n
\u4f7f\u7528 DataTransformer \u534f\u8bae\u4e2d\u7684\u62bd\u8c61\u6765\u5b9e\u73b0\u4e0e\u7279\u5b9a\u7f16\u7801\u5668\u548c\u89e3\u7801\u5668\u7684\u89e3\u8026\uff1a<\/p>\n
\n
\n
\tfunc encode<T: Encodable>(_ object: T) async throws -> Data\n\tfunc decode<T: Decodable>(data: Data) async throws -> T\n}\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u4f7f\u7528\u6570\u636e\u8f6c\u6362\u5668\u7684\u5b9e\u73b0\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86\u7f16\u7801\u5668\u548c\u89e3\u7801\u5668\u63a5\u53e3\u7684\u62bd\u8c61\uff0c\u5b9e\u73b0\u677e\u6563\u8026\u5408\u4ee5\u786e\u4fdd\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\u683c\u5f0f\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u7279\u5b9aDataTransformer\u7684\u4ee3\u7801\uff0c\u5373JSON\uff1a<\/p>\n
\n
\n
\tfunc encode<T>(_ object: T) async throws -> Data where T : Encodable {\n    \t\tlet data = try JSONEncoder().encode(object)\n    \t\treturn data\n\t}\n    \n\tfunc decode<T>(data: Data) async throws -> T where T : Decodable {\n    \t\tlet item: T = try JSONDecoder().decode(T.self, from: data)\n    \t\treturn item\n\t}\n}\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u8fd9\u53ef\u80fd\u5417\uff1f<\/p>\n
\u53d1\u751f\u4e86\u4ec0\u4e48\u53d8\u5316\uff1f\u73b0\u5728\uff0c\u521d\u59cb\u5316\u4e00\u4e2a\u7279\u5b9a\u7684\u5b58\u50a8\u5e93\u5c31\u8db3\u4ee5\u4e0e\u4efb\u4f55\u5b9e\u73b0 Codable \u534f\u8bae\u7684\u7ed3\u6784\u4e00\u8d77\u4f7f\u7528\uff0c\u4ece\u800c\u6d88\u9664\u4e86\u91cd\u590d\u4ee3\u7801\u548c\u5b9e\u73b0\u5e94\u7528\u7a0b\u5e8f\u677e\u6563\u8026\u5408\u7684\u9700\u8981\u3002<\/p>\n
\u5177\u6709\u7279\u5b9a\u5b58\u50a8\u5e93\u7684\u5ba2\u6237\u7aef CRUD \u793a\u4f8b\uff0cUserDefaults \u662f\u6570\u636e\u5e93\u3001JSON \u6570\u636e\u683c\u5f0f\u3001\u5ba2\u6237\u7aef\u7ed3\u6784\uff0c\u4e5f\u662f\u5199\u5165\u548c\u8bfb\u53d6\u6570\u7ec4\u7684\u793a\u4f8b\uff1a<\/p>\n
\n
\n
\nprint(\"One item access example\")\n\ndo {\n\tlet clientRecordIdentifier = \"client\"\n\tlet clientOne = Client(name: \"Chill Client\")\n\tlet repository = UserDefaultsRepository(\n    \ttableName: \"Clients Database\",\n    \tdataTransformer: JSONDataTransformer()\n\t)\n\ttry await repository.create(id: clientRecordIdentifier, item: clientOne)\n\tvar clientRecord: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(\"Client Name: \\(clientRecord.name)\")\n\tclientRecord.name = \"Busy Client\"\n\ttry await repository.update(id: clientRecordIdentifier, item: clientRecord)\n\tlet updatedClient: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(\"Updated Client Name: \\(updatedClient.name)\")\n\ttry await repository.delete(id: clientRecordIdentifier)\n\tlet removedClientRecord: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(removedClientRecord)\n}\ncatch {\n\tprint(error.localizedDescription)\n}\n\nprint(\"Array access example\")\n\nlet clientArrayRecordIdentifier = \"clientArray\"\nlet clientOne = Client(name: \"Chill Client\")\nlet repository = UserDefaultsRepository(\n\ttableName: \"Clients Database\",\n\tdataTransformer: JSONDataTransformer()\n)\nlet array = [clientOne]\ntry await repository.create(id: clientArrayRecordIdentifier, item: array)\nlet savedArray: [Client] = try await repository.read(id: clientArrayRecordIdentifier)\nprint(savedArray.first!)\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u5728\u7b2c\u4e00\u6b21 CRUD \u68c0\u67e5\u671f\u95f4\uff0c\u5df2\u5b9e\u73b0\u5f02\u5e38\u5904\u7406\uff0c\u5176\u4e2d\u8fdc\u7a0b\u9879\u76ee\u7684\u8bfb\u53d6\u5c06\u4e0d\u518d\u53ef\u7528\u3002<\/p>\n
\u5207\u6362\u6570\u636e\u5e93<\/p>\n
\u73b0\u5728\u6211\u5c06\u5411\u60a8\u5c55\u793a\u5982\u4f55\u5c06\u5f53\u524d\u4ee3\u7801\u4f20\u8f93\u5230\u53e6\u4e00\u4e2a\u6570\u636e\u5e93\u3002\u4f8b\u5982\uff0c\u6211\u5c06\u91c7\u7528 ChatGPT \u751f\u6210\u7684 SQLite \u5b58\u50a8\u5e93\u4ee3\u7801\uff1a<\/p>\n
\n
\n
\nclass SQLiteRepository: CRUDRepository {\n    private typealias RecordIdentifier = String\n    \n    let tableName: String\n    let dataTransformer: DataTransformer\n    private var db: OpaquePointer?\n\n    init(\n   \t tableName: String,\n   \t dataTransformer: DataTransformer = JSONDataTransformer()\n    ) {\n   \t self.tableName = tableName\n   \t self.dataTransformer = dataTransformer\n   \t self.db = openDatabase()\n   \t createTableIfNeeded()\n    }\n    \n    private func openDatabase() -> OpaquePointer? {\n   \t var db: OpaquePointer? = nil\n   \t let fileURL = try! FileManager.default\n   \t\t .url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)\n   \t\t .appendingPathComponent(\"\\(tableName).sqlite\")\n   \t if sqlite3_open(fileURL.path, &db) != SQLITE_OK {\n   \t\t print(\"error opening database\")\n   \t\t return nil\n   \t }\n   \t return db\n    }\n    \n    private func createTableIfNeeded() {\n   \t let createTableString = \"\"\"\n   \t CREATE TABLE IF NOT EXISTS \\(tableName) (\n   \t id TEXT PRIMARY KEY NOT NULL,\n   \t data BLOB NOT NULL\n   \t );\n   \t \"\"\"\n   \t var createTableStatement: OpaquePointer? = nil\n   \t if sqlite3_prepare_v2(db, createTableString, -1, &createTableStatement, nil) == SQLITE_OK {\n   \t\t if sqlite3_step(createTableStatement) == SQLITE_DONE {\n       \t\t print(\"\\(tableName) table created.\")\n   \t\t } else {\n       \t\t print(\"\\(tableName) table could not be created.\")\n   \t\t }\n   \t } else {\n   \t\t print(\"CREATE TABLE statement could not be prepared.\")\n   \t }\n   \t sqlite3_finalize(createTableStatement)\n    }\n    \n    private func isExists(id: CRUDRepository.ItemIdentifier) async throws -> Bool {\n   \t let queryStatementString = \"SELECT data FROM \\(tableName) WHERE id = ?;\"\n   \t var queryStatement: OpaquePointer? = nil\n   \t if sqlite3_prepare_v2(db, queryStatementString, -1, &queryStatement, nil) == SQLITE_OK {\n   \t\t sqlite3_bind_text(queryStatement, 1, id, -1, nil)\n   \t\t if sqlite3_step(queryStatement) == SQLITE_ROW {\n       \t\t sqlite3_finalize(queryStatement)\n       \t\t return true\n   \t\t } else {\n       \t\t sqlite3_finalize(queryStatement)\n       \t\t return false\n   \t\t }\n   \t } else {\n   \t\t print(\"SELECT statement could not be prepared.\")\n   \t\t throw CRUDRepositoryError.databaseError\n   \t }\n    }\n    \n    func create<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier, item: T) async throws {\n   \t let insertStatementString = \"INSERT INTO \\(tableName) (id, data) VALUES (?, ?);\"\n   \t var insertStatement: OpaquePointer? = nil\n   \t if sqlite3_prepare_v2(db, insertStatementString, -1, &insertStatement, nil) == SQLITE_OK {\n   \t\t let data = try await dataTransformer.encode(item)\n   \t\t sqlite3_bind_text(insertStatement, 1, id, -1, nil)\n   \t\t sqlite3_bind_blob(insertStatement, 2, (data as NSData).bytes, Int32(data.count), nil)\n   \t\t if sqlite3_step(insertStatement) == SQLITE_DONE {\n       \t\t print(\"Successfully inserted row.\")\n   \t\t } else {\n       \t\t print(\"Could not insert row.\")\n       \t\t throw CRUDRepositoryError.databaseError\n   \t\t }\n   \t } else {\n   \t\t print(\"INSERT statement could not be prepared.\")\n   \t\t throw CRUDRepositoryError.databaseError\n   \t }\n   \t sqlite3_finalize(insertStatement)\n    }\n    \n    func read<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier) async throws -> T {\n   \t let queryStatementString = \"SELECT data FROM \\(tableName) WHERE id = ?;\"\n   \t var queryStatement: OpaquePointer? = nil\n   \t var item: T?\n   \t if sqlite3_prepare_v2(db, queryStatementString, -1, &queryStatement, nil) == SQLITE_OK {\n   \t\t sqlite3_bind_text(queryStatement, 1, id, -1, nil)\n   \t\t if sqlite3_step(queryStatement) == SQLITE_ROW {\n       \t\t let queryResultCol1 = sqlite3_column_blob(queryStatement, 0)\n       \t\t let queryResultCol1Length = sqlite3_column_bytes(queryStatement, 0)\n       \t\t let data = Data(bytes: queryResultCol1, count: Int(queryResultCol1Length))\n       \t\t item = try await dataTransformer.decode(data: data)\n   \t\t } else {\n       \t\t throw CRUDRepositoryError.recordNotFound(id: id)\n   \t\t }\n   \t } else {\n   \t\t print(\"SELECT statement could not be prepared\")\n   \t\t throw CRUDRepositoryError.databaseError\n   \t }\n   \t sqlite3_finalize(queryStatement)\n   \t return item!\n    }\n    \n    func update<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier, item: T) async throws {\n   \t guard try await isExists(id: id) else {\n   \t\t throw CRUDRepositoryError.recordNotFound(id: id)\n   \t }\n   \t let updateStatementString = \"UPDATE \\(tableName) SET data = ? WHERE id = ?;\"\n   \t var updateStatement: OpaquePointer? = nil\n   \t if sqlite3_prepare_v2(db, updateStatementString, -1, &updateStatement, nil) == SQLITE_OK {\n   \t\t let data = try await dataTransformer.encode(item)\n   \t\t sqlite3_bind_blob(updateStatement, 1, (data as NSData).bytes, Int32(data.count), nil)\n   \t\t sqlite3_bind_text(updateStatement, 2, id, -1, nil)\n   \t\t if sqlite3_step(updateStatement) == SQLITE_DONE {\n       \t\t print(\"Successfully updated row.\")\n   \t\t } else {\n       \t\t print(\"Could not update row.\")\n       \t\t throw CRUDRepositoryError.databaseError\n   \t\t }\n   \t } else {\n   \t\t print(\"UPDATE statement could not be prepared.\")\n   \t\t throw CRUDRepositoryError.databaseError\n   \t }\n   \t sqlite3_finalize(updateStatement)\n    }\n    \n    func delete(id: CRUDRepository.ItemIdentifier) async throws {\n   \t guard try await isExists(id: id) else {\n   \t\t throw CRUDRepositoryError.recordNotFound(id: id)\n   \t }\n   \t let deleteStatementString = \"DELETE FROM \\(tableName) WHERE id = ?;\"\n   \t var deleteStatement: OpaquePointer? = nil\n   \t if sqlite3_prepare_v2(db, deleteStatementString, -1, &deleteStatement, nil) == SQLITE_OK {\n   \t\t sqlite3_bind_text(deleteStatement, 1, id, -1, nil)\n   \t\t if sqlite3_step(deleteStatement) == SQLITE_DONE {\n       \t\t print(\"Successfully deleted row.\")\n   \t\t } else {\n       \t\t print(\"Could not delete row.\")\n       \t\t throw CRUDRepositoryError.databaseError\n   \t\t }\n   \t } else {\n   \t\t print(\"DELETE statement could not be prepared.\")\n   \t\t throw CRUDRepositoryError.databaseError\n   \t }\n   \t sqlite3_finalize(deleteStatement)\n    }\n}\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u6216\u8005\u6587\u4ef6\u7cfb\u7edf\u5b58\u50a8\u5e93\u7684 CRUD \u4ee3\u7801\uff0c\u5b83\u4e5f\u662f\u7531 ChatGPT \u751f\u6210\u7684\uff1a<\/p>\n
\n
\n
\nclass FileSystemRepository: CRUDRepository {\n\tprivate typealias RecordIdentifier = String\n    \n\tlet directoryName: String\n\tlet dataTransformer: DataTransformer\n\tprivate let fileManager = FileManager.default\n\tprivate var directoryURL: URL\n    \n\tinit(\n    \tdirectoryName: String = \"Database\",\n    \tdataTransformer: DataTransformer = JSONDataTransformer()\n\t) {\n    \tself.directoryName = directoryName\n    \tself.dataTransformer = dataTransformer\n   \t \n    \tlet paths = fileManager.urls(for: .documentDirectory, in: .userDomainMask)\n    \tdirectoryURL = paths.first!.appendingPathComponent(directoryName)\n   \t \n    \tif !fileManager.fileExists(atPath: directoryURL.path) {\n        \ttry? fileManager.createDirectory(at: directoryURL, withIntermediateDirectories: true, attributes: nil)\n    \t}\n\t}\n    \n\tprivate func fileURL(id: CRUDRepository.ItemIdentifier) -> URL {\n    \treturn directoryURL.appendingPathComponent(\"item_\\(id).json\")\n\t}\n    \n\tprivate func isExists(id: CRUDRepository.ItemIdentifier) async throws -> Bool {\n    \treturn fileManager.fileExists(atPath: fileURL(id: id).path)\n\t}\n    \n\tfunc create<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier, item: T) async throws {\n    \tlet data = try await dataTransformer.encode(item)\n    \tlet url = fileURL(id: id)\n    \ttry data.write(to: url)\n\t}\n    \n\tfunc read<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier) async throws -> T {\n    \tlet url = fileURL(id: id)\n    \tguard let data = fileManager.contents(atPath: url.path) else {\n        \tthrow CRUDRepositoryError.recordNotFound(id: id)\n    \t}\n    \tlet item: T = try await dataTransformer.decode(data: data)\n    \treturn item\n\t}\n    \n\tfunc update<T: CRUDRepository.Item>(id: CRUDRepository.ItemIdentifier, item: T) async throws {\n    \tguard try await isExists(id: id) else {\n        \tthrow CRUDRepositoryError.recordNotFound(id: id)\n    \t}\n    \tlet data = try await dataTransformer.encode(item)\n    \tlet url = fileURL(id: id)\n    \ttry data.write(to: url)\n\t}\n    \n\tfunc delete(id: CRUDRepository.ItemIdentifier) async throws {\n    \tguard try await isExists(id: id) else {\n        \tthrow CRUDRepositoryError.recordNotFound(id: id)\n    \t}\n    \tlet url = fileURL(id: id)\n    \ttry fileManager.removeItem(at: url)\n\t}\n}\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u66ff\u6362\u5ba2\u6237\u7aef\u4ee3\u7801\u4e2d\u7684\u5b58\u50a8\u5e93\uff1a<\/p>\n
\n
\n
\nprint(\"One item access example\")\n\ndo {\n\tlet clientRecordIdentifier = \"client\"\n\tlet clientOne = Client(name: \"Chill Client\")\n\tlet repository = FileSystemRepository(\n    \tdirectoryName: \"Clients Database\",\n    \tdataTransformer: JSONDataTransformer()\n\t)\n\ttry await repository.create(id: clientRecordIdentifier, item: clientOne)\n\tvar clientRecord: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(\"Client Name: \\(clientRecord.name)\")\n\tclientRecord.name = \"Busy Client\"\n\ttry await repository.update(id: clientRecordIdentifier, item: clientRecord)\n\tlet updatedClient: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(\"Updated Client Name: \\(updatedClient.name)\")\n\ttry await repository.delete(id: clientRecordIdentifier)\n\tlet removedClientRecord: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(removedClientRecord)\n}\ncatch {\n\tprint(error.localizedDescription)\n}\n\nprint(\"Array access example\")\n\nlet clientArrayRecordIdentifier = \"clientArray\"\nlet clientOne = Client(name: \"Chill Client\")\nlet repository = FileSystemRepository(\n\tdirectoryName: \"Clients Database\",\n\tdataTransformer: JSONDataTransformer()\n)\nlet array = [clientOne]\ntry await repository.create(id: clientArrayRecordIdentifier, item: array)\nlet savedArray: [Client] = try await repository.read(id: clientArrayRecordIdentifier)\nprint(savedArray.first!)\n<\/code><\/pre>\n<\/div>\n<\/div>\n
UserDefaultsRepository \u7684\u521d\u59cb\u5316\u5df2\u66ff\u6362\u4e3a FileSystemRepository\uff0c\u5e76\u5e26\u6709\u9002\u5f53\u7684\u53c2\u6570\u3002
\u8fd0\u884c\u7b2c\u4e8c\u7248\u5ba2\u6237\u7aef\u4ee3\u7801\u540e\uff0c\u60a8\u5c06\u5728\u6587\u6863\u6587\u4ef6\u5939\u4e2d\u627e\u5230\u201cClients Database\u201d\u76ee\u5f55\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u4ee5 JSON \u5e8f\u5217\u5316\u7684\u6570\u7ec4\u6587\u4ef6\uff0c\u5177\u6709\u4e00\u4e2a\u5ba2\u6237\u7aef\u7ed3\u6784\u3002<\/p>\n
\u5207\u6362\u6570\u636e\u5b58\u50a8\u683c\u5f0f<\/p>\n
\u73b0\u5728\u8ba9 ChatGPT \u751f\u6210 XML \u7684\u7f16\u7801\u5668\u548c\u89e3\u7801\u5668\uff1a<\/p>\n
\n
\n
\tlet formatExtension = \"xml\"\n    \n\tfunc encode<T: Encodable>(_ item: T) async throws -> Data {\n    \tlet encoder = PropertyListEncoder()\n    \tencoder.outputFormat = .xml\n    \treturn try encoder.encode(item)\n\t}\n    \n\tfunc decode<T: Decodable>(data: Data) async throws -> T {\n    \tlet decoder = PropertyListDecoder()\n    \treturn try decoder.decode(T.self, from: data)\n\t}\n}\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u5f97\u76ca\u4e8e Swift \u4e2d\u7684\u5185\u7f6e\u7c7b\u578b\uff0c\u795e\u7ecf\u7f51\u7edc\u7684\u4efb\u52a1\u53d8\u5f97\u975e\u5e38\u7b80\u5355\u3002<\/p>\n
\u5728\u5ba2\u6237\u7aef\u4ee3\u7801\u4e2d\u5c06 JSON \u66ff\u6362\u4e3a XML\uff1a<\/p>\n
\n
\n
\nprint(\"One item access example\")\n\ndo {\n\tlet clientRecordIdentifier = \"client\"\n\tlet clientOne = Client(name: \"Chill Client\")\n\tlet repository = FileSystemRepository(\n    \tdirectoryName: \"Clients Database\",\n    \tdataTransformer: XMLDataTransformer()\n\t)\n\ttry await repository.create(id: clientRecordIdentifier, item: clientOne)\n\tvar clientRecord: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(\"Client Name: \\(clientRecord.name)\")\n\tclientRecord.name = \"Busy Client\"\n\ttry await repository.update(id: clientRecordIdentifier, item: clientRecord)\n\tlet updatedClient: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(\"Updated Client Name: \\(updatedClient.name)\")\n\ttry await repository.delete(id: clientRecordIdentifier)\n\tlet removedClientRecord: Client = try await repository.read(id: clientRecordIdentifier)\n\tprint(removedClientRecord)\n}\ncatch {\n\tprint(error.localizedDescription)\n}\n\nprint(\"Array access example\")\n\nlet clientArrayRecordIdentifier = \"clientArray\"\nlet clientOne = Client(name: \"Chill Client\")\nlet repository = FileSystemRepository(\n\tdirectoryName: \"Clients Database\",\n\tdataTransformer: XMLDataTransformer()\n)\nlet array = [clientOne]\ntry await repository.create(id: clientArrayRecordIdentifier, item: array)\nlet savedArray: [Client] = try await repository.read(id: clientArrayRecordIdentifier)\nprint(savedArray.first!)\n<\/code><\/pre>\n<\/div>\n<\/div>\n
\u5ba2\u6237\u7aef\u4ee3\u7801\u5df2\u66f4\u6539\u4e3a\u53ea\u6709\u4e00\u4e2a\u8868\u8fbe\u5f0f JSONDataTransformer -> XML\u6570\u636e\u8f6c\u6362\u5668<\/p>\n
\u603b\u8ba1<\/p>\n
CRUD \u5b58\u50a8\u5e93\u662f\u53ef\u7528\u4e8e\u5b9e\u73b0\u5e94\u7528\u7a0b\u5e8f\u67b6\u6784\u7ec4\u4ef6\u677e\u6563\u8026\u5408\u7684\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u4e00\u3002\u53e6\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u662f\u201c\u4f7f\u7528ORM\uff08\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff09\uff0c\u7b80\u5355\u6765\u8bf4\uff0cORM\u4f7f\u7528\u4e00\u79cd\u5c06\u7ed3\u6784\u5b8c\u5168\u6620\u5c04\u5230\u6570\u636e\u5e93\u7684\u65b9\u6cd5\uff0c\u7136\u540e\u5c06\u6a21\u578b\u7684\u66f4\u6539\u663e\u793a\u5728\u6570\u636e\u5e93\u4e0a\uff08\u6620\u5c04\uff08\uff01\uff09\uff09\u3002 
\u4f46\u8fd9\u662f\u4e00\u4e2a\u5b8c\u5168\u4e0d\u540c\u7684\u6545\u4e8b\u3002<\/p>\n
Swift \u7684 CRUD \u5b58\u50a8\u5e93\u7684\u5b8c\u6574\u5b9e\u73b0\u4f4d\u4e8e\uff1a
https:\/\/gitlab.com\/demensdeum\/crud-example<\/a><\/p>\n
\u987a\u4fbf\u8bf4\u4e00\u53e5\uff0cSwift \u957f\u671f\u4ee5\u6765\u4e00\u76f4\u5728 macOS \u4e4b\u5916\u5f97\u5230\u652f\u6301\uff1b\u672c\u6587\u4e2d\u7684\u4ee3\u7801\u5b8c\u5168\u662f\u5728 Arch Linux \u4e0a\u7f16\u5199\u548c\u6d4b\u8bd5\u7684\u3002<\/p>\n
\u6765\u6e90<\/p>\n
https:\/\/developer.apple.com\/documentation\/combine\/topleveldecoder <\/a>
https:\/\/developer.apple.com\/documentation\/combine\/toplevelencoder<\/a>
\nhttps:\/\/en.wikipedia.org\/wiki\/Create,_read,_update_and_delete<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u8fd9\u7bc7\u7b14\u8bb0\u4e2d\uff0c\u6211\u5c06\u63cf\u8ff0\u8457\u540d\u7684\u7ecf\u5178 CRUD \u6a21\u5f0f\u7684\u57fa\u672c\u539f\u7406\uff0c\u4ee5\u53ca Swift \u8bed\u8a00\u7684\u5b9e\u73b0\u3002 Swift \u662f\u4e00\u79cd\u5f00\u653e\u7684\u8de8\u5e73\u53f0\u8bed\u8a00\uff0c\u9002\u7528\u4e8e Windows\u3001Linux\u3001macOS\u3001iOS\u3001Android\u3002 \u6709\u8bb8\u591a\u89e3\u51b3\u65b9\u6848\u53ef\u4ee5\u62bd\u8c61\u6570\u636e\u5b58\u50a8\u548c\u5e94\u7528\u7a0b\u5e8f\u903b\u8f91\u3002\u5176\u4e2d\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u662f CRUD \u65b9\u6cd5\uff0c\u5b83\u662f C# \u7684\u7f29\u5199\u3002\u521b\u5efa\uff0cR-\u8bfb\u53d6\uff0cU –\u66f4\u65b0\uff0cD–\u5220\u9664\u3002\u901a\u5e38\uff0c\u6b64\u539f\u5219\u662f\u901a\u8fc7\u5b9e\u73b0\u6570\u636e\u5e93\u63a5\u53e3\u6765\u5b9e\u73b0\u7684\uff0c\u5176\u4e2d\u4f7f\u7528\u552f\u4e00\u6807\u8bc6\u7b26\uff08\u4f8b\u5982 id\uff09\u6765\u64cd\u4f5c\u5143\u7d20\u3002\u4e3a\u6bcf\u4e2a\u5b57\u6bcd\u521b\u5efa\u4e00\u4e2a\u754c\u9762 CRUD –\u521b\u5efa\uff08\u5bf9\u8c61\uff0cid\uff09\uff0c\u8bfb\u53d6\uff08id\uff09\uff0c\u66f4\u65b0\uff08\u5bf9\u8c61\uff0cid\uff09\uff0c\u5220\u9664\uff08\u5bf9\u8c61\uff0cid\uff09\u3002\u5982\u679c\u4e00\u4e2a\u5bf9\u8c61\u5728\u5176\u5185\u90e8\u5305\u542b\u4e00\u4e2a id\uff0c\u90a3\u4e48 id \u53c2\u6570\u53ef\u4ee5\u4ece\u65b9\u6cd5\uff08Create\u3001Update\u3001Delete\uff09\u4e2d\u7701\u7565\uff0c\u56e0\u4e3a\u6574\u4e2a\u5bf9\u8c61\u53ca\u5176\u5b57\u6bb5 – \u90fd\u88ab\u4f20\u9012\u5230\u90a3\u91cc\u3002 ID\u3002\u4f46\u5bf9\u4e8e– Read\u9700\u8981id\uff0c\u56e0\u4e3a\u6211\u4eec\u60f3\u901a\u8fc7id\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u4e00\u4e2a\u5bf9\u8c61\u3002 \u6240\u6709\u540d\u5b57\u5747\u4e3a\u865a\u6784 \u8ba9\u6211\u4eec\u5047\u8bbe\u4e00\u4e2a\u5047\u8bbe\u7684 AssistantAI \u5e94\u7528\u7a0b\u5e8f\u662f\u4f7f\u7528\u514d\u8d39\u7684 EtherRelm \u6570\u636e\u5e93 SDK \u521b\u5efa\u7684\uff0c\u96c6\u6210\u5f88\u7b80\u5355\uff0cAPI \u975e\u5e38\u65b9\u4fbf\uff0c\u56e0\u6b64\u8be5\u5e94\u7528\u7a0b\u5e8f\u88ab\u53d1\u5e03\u5230\u5e02\u573a\u3002\u7a81\u7136\uff0cSDK \u5f00\u53d1\u8005 EtherRelm \u51b3\u5b9a\u4ed8\u8d39\uff0c\u5c06\u4ef7\u683c\u5b9a\u4e3a\u6bcf\u4e2a\u5e94\u7528\u7a0b\u5e8f\u7528\u6237\u6bcf\u5e74 100 \u7f8e\u5143\u3002\u4ec0\u4e48\uff1f\u662f\u7684\uff01 AssistantAI\u7684\u5f00\u53d1\u8005\u73b0\u5728\u5e94\u8be5\u505a\u4ec0\u4e48\uff0c\u56e0\u4e3a\u4ed6\u4eec\u5df2\u7ecf\u6709100\u4e07\u6d3b\u8dc3\u7528\u6237\u4e86\uff01\u652f\u4ed8\u4e00\u4ebf\u7f8e\u5143\uff1f\u76f8\u53cd\uff0c\u4f1a\u505a\u51fa\u8bc4\u4f30\u5c06\u5e94\u7528\u7a0b\u5e8f\u8f6c\u79fb\u5230\u5e73\u53f0\u672c\u673a RootData \u6570\u636e\u5e93\u7684\u51b3\u5b9a\uff1b\u6839\u636e\u7a0b\u5e8f\u5458\u7684\u8bf4\u6cd5\uff0c\u8fd9\u6837\u7684\u8f6c\u79fb\u5c06\u9700\u8981\u5927\u7ea6\u516d\u4e2a\u6708\u7684\u65f6\u95f4\uff0c\u8fd9\u8fd8\u4e0d\u8003\u8651\u5e94\u7528\u7a0b\u5e8f\u4e2d\u65b0\u529f\u80fd\u7684\u5b9e\u73b0\u3002\u7ecf\u8fc7\u6df1\u601d\u719f\u8651\uff0c\u51b3\u5b9a\u4ece\u5e02\u573a\u4e0a\u5220\u9664\u8be5\u5e94\u7528\u7a0b\u5e8f\uff0c\u5e76\u5728\u53e6\u4e00\u4e2a\u5e26\u6709\u5185\u7f6eBueMS\u6570\u636e\u5e93\u7684\u514d\u8d39\u8de8\u5e73\u53f0\u6846\u67b6\u4e0a\u91cd\u5199\u5b83\uff0c\u8fd9\u5c06\u89e3\u51b3\u4ed8\u8d39\u6570\u636e\u5e93\u7684\u95ee\u9898+\u5c06\u7b80\u5316\u5728\u5176\u4ed6\u5e73\u53f0\u4e0a\u7684\u5f00\u53d1\u3002 \u4e00\u5e74\u540e\uff0c\u8be5\u5e94\u7528\u7a0b\u5e8f\u5728 BueMS \u4e2d\u88ab\u91cd\u5199\uff0c\u4f46\u7a81\u7136\u6846\u67b6\u5f00\u53d1\u4eba\u5458\u51b3\u5b9a\u5bf9\u5176\u8fdb\u884c\u4ed8\u8d39\u3002\u4e8b\u5b9e\u8bc1\u660e\uff0c\u56e2\u961f\u5df2\u7ecf\u4e24\u6b21\u9677\u5165\u540c\u4e00\u4e2a\u9677\u9631\uff0c\u7b2c\u4e8c\u6b21\u662f\u5426\u80fd\u6446\u8131\u56f0\u5883\u5c31\u5b8c\u5168\u662f\u53e6\u5916\u4e00\u56de\u4e8b\u4e86\u3002 \u62bd\u8c61\u6765\u6551\u63f4 \u5982\u679c\u5f00\u53d1\u4eba\u5458\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u63a5\u53e3\u7684\u62bd\u8c61\uff0c\u8fd9\u4e9b\u95ee\u9898\u672c\u6765\u53ef\u4ee5\u907f\u514d\u3002 OOP \u7684\u4e09\u5927\u652f\u67f1\u591a\u6001\u3001\u5c01\u88c5\u3001\u7ee7\u627f\uff0c\u4e0d\u4e45\u524d\u4ed6\u4eec\u8fd8\u6dfb\u52a0\u4e86\u53e6\u4e00\u4e2a\u201c\u591a\u6001\u201d\u3001\u201c\u5c01\u88c5\u201d\u3001\u201c\u7ee7\u627f\u201d\u3002\u62bd\u8c61\u3002\u6570\u636e\u62bd\u8c61\u5141\u8bb8\u60a8\u7528\u6700\u5c11\u7684\u7ec6\u8282\u4ee5\u4e00\u822c\u672f\u8bed\u63cf\u8ff0\u60f3\u6cd5\u548c\u6a21\u578b\uff0c\u540c\u65f6\u8db3\u591f\u51c6\u786e\u4ee5\u5b9e\u73b0\u7528\u4e8e\u89e3\u51b3\u4e1a\u52a1\u95ee\u9898\u7684\u7279\u5b9a\u5b9e\u73b0\u3002\u5982\u4f55\u62bd\u8c61\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u4f7f\u5f97\u5e94\u7528\u903b\u8f91\u4e0d\u4f9d\u8d56\u4e8e\u5b83\uff1f\u6211\u4eec\u4f7f\u7528 CRUD \u65b9\u6cd5\uff01 \u7b80\u5316\u7684 UML CRUD \u56fe\u5982\u4e0b\u6240\u793a\uff1a \u865a\u6784\u7684Continue reading “\u589e\u5220\u6539\u67e5\u5b58\u50a8\u5e93”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[61],"tags":[224,223,225],"class_list":["post-3522","post","type-post","status-publish","format-standard","hentry","category-techie","tag-crud","tag-swift","tag-225","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"zh","enabled_languages":["en","ru","zh","de","fr","ja","pt"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"ru":{"title":true,"content":true,"excerpt":false},"zh":{"title":true,"content":true,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"pt":{"title":true,"content":true,"excerpt":false}}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/3522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/comments?post=3522"}],"version-history":[{"count":33,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/3522\/revisions"}],"predecessor-version":[{"id":3867,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/3522\/revisions\/3867"}],"wp:attachment":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/media?parent=3522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/categories?post=3522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/tags?post=3522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}