Stellt Funktionen zum Speichern und Abrufen von Daten in der IndexedDB bereit
Dit script moet niet direct worden geïnstalleerd - het is een bibliotheek voor andere scripts om op te nemen met de meta-richtlijn // @require https://update.greatest.deepsurf.us/scripts/553985/1685377/%2A%20Common%3A%20IndexedDB.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");
};
});
}
/**
* @license
* BSD 3-Clause License
*
* Original work Copyright (c) [Jahr], BOS-Ernie
* Modified and maintained by [Dein Name], 2025
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of BOS-Ernie nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* ...
*/