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Funktionen zum Speichern und Abrufen von Daten in der IndexedDB
当前为
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.icu/scripts/553985/1685376/%2A%20Common%3A%20IndexedDB%20%28Fork%20by%20Shihu%29.js
// ==UserScript==
// @name * Common: IndexedDB (Fork by Shihu)
// @namespace Shihu
// @version 1.0.1
// @license BSD-3-Clause
// @author BOS-Ernie (Original), Shihu (Fork/Maintainer)
// @description Funktionen zum Speichern und Abrufen von Daten in der IndexedDB
// @icon https://www.google.com/s2/favicons?sz=64&domain=leitstellenspiel.de
// @run-at document-idle
// @grant none
// ==/UserScript==
const databaseName = "BosErnie";
const objectStoreName = "GebäudeUndFahrzeugVerwalter";
function openDB() {
return new Promise((resolve, reject) => {
const request = window.indexedDB.open(databaseName, 1);
request.onerror = () => {
reject("Failed to open the database");
};
request.onsuccess = event => {
const db = event.target.result;
resolve(db);
};
request.onupgradeneeded = event => {
const db = event.target.result;
const objectStore = db.createObjectStore(objectStoreName);
objectStore.createIndex("IndexName", "propertyName", { unique: false });
};
});
}
async function storeData(data, key) {
const db = await openDB();
return new Promise((resolve, reject) => {
const transaction = db.transaction([objectStoreName], "readwrite");
const objectStore = transaction.objectStore(objectStoreName);
const request = objectStore.put(data, key);
request.onsuccess = () => {
resolve("Data stored successfully");
};
request.onerror = () => {
reject("Failed to store data");
};
});
}
async function retrieveData(key) {
const db = await openDB();
return new Promise((resolve, reject) => {
const transaction = db.transaction([objectStoreName], "readonly");
const objectStore = transaction.objectStore(objectStoreName);
const request = objectStore.get(key);
request.onsuccess = event => {
const data = event.target.result;
resolve(data);
};
request.onerror = () => {
reject("Failed to retrieve data");
};
});
}