Issue2228

addons/dexie-cloud/dexie-cloud-import.json

@@ -1,6 +1,7 @@
 {
   "demoUsers": {
     "[email protected]": {},
-    "[email protected]": {}
+    "[email protected]": {},
+    "[email protected]": {}
   }
 }

addons/dexie-cloud/package.json

@@ -86,6 +86,7 @@
     "karma-chrome-launcher": "*",
     "karma-firefox-launcher": "*",
     "karma-qunit": "*",
+    "karma-webdriver-launcher": "*",
     "qunit": "2.10.0",
     "qunitjs": "1.23.1",
     "lib0": "^0.2.97",

addons/dexie-cloud/src/sync/listClientChanges.ts

@@ -92,10 +92,18 @@ function removeRedundantUpdateOps(muts: DBOperation[]) {
     // Only apply optimization to update mutations that are single-key
     if (mut.type !== 'update') return true;
     if (mut.keys.length !== 1 || mut.changeSpecs.length !== 1) return true;
+
+    // Check if this has PropModifications - if so, skip optimization
+    const changeSpecs = mut.changeSpecs[0];
+    if (Object.values(changeSpecs).some(v => typeof v === "object" && v && "@@propmod" in v)) {
+      return true; // Cannot optimize if any PropModification is present
+    }
+
     // Keep track of properties that aren't overlapped by later transactions
     const unoverlappedProps = new Set(Object.keys(mut.changeSpecs[0]));
     const strKey = '' + mut.keys[0];
-    const keyCoverage = updateCoverage.get(strKey)!;
+    const keyCoverage = updateCoverage.get(strKey);
+    if (!keyCoverage) return true; // No coverage info - cannot optimize
 
     for (let i = keyCoverage.length - 1; i >= 0; --i) {
       const { txid, updateSpec } = keyCoverage[i];

addons/dexie-cloud/test/unit/karma.conf.cjs

@@ -21,7 +21,14 @@ module.exports = function (config) {
       'addons/dexie-cloud/test/unit/bundle.js',
       { pattern: 'addons/dexie-cloud/test/*.map', watched: false, included: false },
       { pattern: 'addons/dexie-cloud/dist/*.map', watched: false, included: false }
-    ])
+    ]),
+    // Override plugins to exclude karma-webdriver-launcher for local testing
+    plugins: [
+      'karma-qunit',
+      'karma-mocha-reporter', 
+      'karma-chrome-launcher',
+      'karma-firefox-launcher'
+    ]
   });
 
   cfg.hostname = 'localhost';

addons/dexie-cloud/test/unit/tests-github-issues.ts

@@ -10,11 +10,51 @@ import {
   deepEqual,
 } from 'qunit';
 import { promisedTest } from '../promisedTest';
-import Dexie from 'dexie';
+import Dexie, { add, remove } from 'dexie';
 import dexieCloud, { DexieCloudOptions, DexieCloudTable, getTiedRealmId } from '../../src/dexie-cloud-client';
 
+const DBURL = 'https://zv8n7bwcs.dexie.cloud'; // Shall exist in cloud.
+
 module('github-issues');
 
+promisedTest('https://github.com/dexie/Dexie.js/issues/2228', async () => {
+  const DBNAME = 'Issue2228_DB';
+  const db = new Dexie(DBNAME, { addons: [dexieCloud] }) as Dexie & {
+    items2228: DexieCloudTable<{ id: string; drinks: string[] }, 'id'>;
+  };
+  db.version(1).stores({ items2228: '@id' });
+  db.cloud.configure({
+    databaseUrl: DBURL,
+    requireAuth: { email: '[email protected]', grant_type: 'demo' }
+  });
+  await db.open();
+
+  ok(true, 'Cleared existing items in items2228 table');
+  await db.items2228.clear();
+  ok(true, 'Now syncing to cloud');
+  await db.cloud.sync({purpose: 'push', wait: true });
+
+  await db.items2228.update('nonExistingId', { drinks: add(['coffee']) });
+  await db.items2228.update('nonExistingId', { drinks: remove(['coffee']) });
+
+  ok(true, 'Now syncing to cloud after adding and removing from non-existing item');
+  await db.cloud.sync({purpose: 'push', wait: true });
+
+  const itemId = await db.items2228.add({ drinks: ['coffee', 'tea'] });
+  ok(true, `Added item with id ${itemId} and drinks ['coffee', 'tea']`);
+
+  await db.items2228.update(itemId, { drinks: add(['milk']) });
+  await db.items2228.update(itemId, { drinks: remove(['milk']) });
+
+  ok(true, 'Now syncing to cloud after adding and removing from existing item');
+  await db.cloud.sync({purpose: 'push', wait: true });
+
+  ok(true, 'Test completed successfully');
+  db.close();
+  await Dexie.delete(DBNAME);
+  console.log('Database deleted successfully');
+});
+
 /** Dexie issue #2185
  * 
  * Here are the steps to reproduce the issue: