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fix failing to sync new rooms

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This commit is contained in:
Bruno Windels 2019-10-12 22:18:36 +02:00
parent ac53b9099b
commit 201b70ee4f
1 changed files with 16 additions and 1 deletions
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17
src/matrix/room/timeline/persistence/SyncWriter.js
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@ -3,6 +3,20 @@ import EventEntry from "../entries/EventEntry.js";
import FragmentBoundaryEntry from "../entries/FragmentBoundaryEntry.js";
import {createEventEntry} from "./common.js";
// Synapse bug? where the m.room.create event appears twice in sync response
// when first syncing the room
function deduplicateEvents(events) {
const eventIds = new Set();
return events.filter(e => {
if (eventIds.has(e.event_id)) {
return false;
} else {
eventIds.add(e.event_id);
return true;
}
});
}
export default class SyncWriter {
constructor({roomId, storage, fragmentIdComparer}) {
this._roomId = roomId;
@ -89,7 +103,8 @@ export default class SyncWriter {
}
let currentKey = this._lastLiveKey;
if (timeline.events) {
for(const event of timeline.events) {
const events = deduplicateEvents(timeline.events);
for(const event of events) {
currentKey = currentKey.nextKey();
const entry = createEventEntry(currentKey, this._roomId, event);
txn.timelineEvents.insert(entry);