Вы попытались установить ключ dblocation со значением nosync для объекта, который должен быть неизменяемым и был заморож ⇐ IOS

[Anonymous]

Я работаю над базой данных sqlite для локального хранения данных на устройствах iOS и Android. Я создал общий служебный файл для подключения и работы, при открытии базы данных возникает следующая ошибка >
You attempted to set the key "dblocation" with the value "nosync" on an object that is meant to be immutable and has been frozen.

Платформа

react-native : "0.74.1",
node : v22.3.0,
react-native-sqlite-storage : "^6.0.1",

Для справки найдите приведенный ниже код.

Сервисный файл

import SQLite, { SQLiteDatabase, ResultSet } from 'react-native-sqlite-storage';
import { databaseName, location } from './DbConfig';

SQLite.DEBUG(true);
SQLite.enablePromise(true);

const databaseConfig = {
name: databaseName,
location: location,
dblocation: location,
// createFromLocation:createFromLocation
};

export interface Item {
id: number;
name: string;
description: string;
new_column?: string; }
class DatabaseService {
private readOnly: boolean = false;

private async initDB(): Promise {
try {
const opens = await SQLite.openDatabase(databaseConfig);
console.log('opens', opens);
return opens;
} catch (error) {
console.error('Failed to open database:', error);
throw error;
}
}

private closeDatabase(db: SQLiteDatabase): void {
db.close().catch((error) => console.error('Failed to close database:', error));
}

setReadOnlyMode(isReadOnly: boolean): void {
this.readOnly = isReadOnly;
}

async createTable(): Promise {
if (this.readOnly) throw new Error('Database is in read-only mode');
const db = await this.initDB();
await db.executeSql(`
CREATE TABLE IF NOT EXISTS items (
id INTEGER PRIMARY KEY AUTOINCREMENT,
name TEXT,
description TEXT
)
`);
this.closeDatabase(db);
}

async addItem(item: Item): Promise {
if (this.readOnly) throw new Error('Database is in read-only mode');
const db = await this.initDB();
const result = await db.executeSql('INSERT INTO items (name, description) VALUES (?, ?)', [
item.name,
item.description,
]);
this.closeDatabase(db);
return result[0];
}

async updateItem(id: number, item: Item): Promise {
if (this.readOnly) throw new Error('Database is in read-only mode');
const db = await this.initDB();
const result = await db.executeSql('UPDATE items SET name = ?, description = ? WHERE id = ?', [
item.name,
item.description,
id,
]);
this.closeDatabase(db);
return result[0];
}

async deleteItem(id: number): Promise {
if (this.readOnly) throw new Error('Database is in read-only mode');
const db = await this.initDB();
const result = await db.executeSql('DELETE FROM items WHERE id = ?', [id]);
this.closeDatabase(db);
return result[0];
}

async getItems(): Promise {
const db = await this.initDB();
console.log('--------', '----', db);

const [result] = await db.executeSql('SELECT * FROM items', []);
console.log('---result-----', result);

this.closeDatabase(db);

const items: Item[] = [];
for (let i = 0; i < result.rows.length; i++) {
items.push(result.rows.item(i));
}
return items;
}

async updateDatabaseVersion(newVersion: number): Promise {
if (this.readOnly) throw new Error('Database is in read-only mode');
const db = await this.initDB();
const [result] = await db.executeSql('PRAGMA user_version');
const currentVersion = result.rows.item(0).user_version;

if (currentVersion < newVersion) {
await db.executeSql('ALTER TABLE items ADD COLUMN new_column TEXT');
await db.executeSql(`PRAGMA user_version = ${newVersion}`);
}

this.closeDatabase(db);
}
}
export default new DatabaseService();


Конфигурация

export const databaseName='Database2024.db';
export const dbVersion=1;
export const location='default'
export const createFromLocation =1


Использование

useEffect(() => {
(async () => {
const aa= await DatabaseService.createTable();
await fetchItems();
})();
}, []);


Подробнее здесь: https://stackoverflow.com/questions/786 ... -an-object