add relations store

This commit is contained in:
Bruno Windels 2021-06-03 16:44:35 +02:00
parent 36a35d92f0
commit 41fb30c68b
6 changed files with 76 additions and 0 deletions

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@ -333,6 +333,7 @@ export class Sync {
storeNames.roomState,
storeNames.roomMembers,
storeNames.timelineEvents,
storeNames.timelineRelations,
storeNames.timelineFragments,
storeNames.pendingEvents,
storeNames.userIdentities,

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@ -259,6 +259,7 @@ export class BaseRoom extends EventEmitter {
const txn = await this._storage.readWriteTxn([
this._storage.storeNames.pendingEvents,
this._storage.storeNames.timelineEvents,
this._storage.storeNames.timelineRelations,
this._storage.storeNames.timelineFragments,
]);
let extraGapFillChanges;

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@ -22,6 +22,7 @@ export const STORE_NAMES = Object.freeze([
"invites",
"roomMembers",
"timelineEvents",
"timelineRelations",
"timelineFragments",
"pendingEvents",
"userIdentities",

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@ -21,6 +21,7 @@ import {SessionStore} from "./stores/SessionStore.js";
import {RoomSummaryStore} from "./stores/RoomSummaryStore.js";
import {InviteStore} from "./stores/InviteStore.js";
import {TimelineEventStore} from "./stores/TimelineEventStore.js";
import {TimelineRelationStore} from "./stores/TimelineRelationStore.js";
import {RoomStateStore} from "./stores/RoomStateStore.js";
import {RoomMemberStore} from "./stores/RoomMemberStore.js";
import {TimelineFragmentStore} from "./stores/TimelineFragmentStore.js";
@ -82,6 +83,10 @@ export class Transaction {
return this._store("timelineEvents", idbStore => new TimelineEventStore(idbStore));
}
get timelineRelations() {
return this._store("timelineRelations", idbStore => new TimelineRelationStore(idbStore));
}
get roomState() {
return this._store("roomState", idbStore => new RoomStateStore(idbStore));
}

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@ -16,6 +16,7 @@ export const schema = [
createInviteStore,
createArchivedRoomSummaryStore,
migrateOperationScopeIndex,
createTimelineRelationsStore,
];
// TODO: how to deal with git merge conflicts of this array?
@ -135,4 +136,9 @@ async function migrateOperationScopeIndex(db, txn) {
txn.abort();
console.error("could not migrate operations", err.stack);
}
}
//v10
function createTimelineRelationsStore(db) {
db.createObjectStore("timelineRelations", {keyPath: ""});
}

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@ -0,0 +1,62 @@
/*
Copyright 2021 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import {MIN_UNICODE, MAX_UNICODE} from "./common.js";
function encodeKey(roomId, targetEventId, relType, sourceEventId) {
return `${roomId}|${targetEventId}|${relType}|${sourceEventId}`;
}
function decodeKey(key) {
const [roomId, targetEventId, relType, sourceEventId] = key.split("|");
return {roomId, targetEventId, relType, sourceEventId};
}
export class TimelineRelationStore {
constructor(store) {
this._store = store;
}
add(roomId, targetEventId, relType, sourceEventId) {
return this._store.add(encodeKey(roomId, targetEventId, relType, sourceEventId));
}
remove(roomId, targetEventId, relType, sourceEventId) {
return this._store.delete(encodeKey(roomId, targetEventId, relType, sourceEventId));
}
removeAllForTarget(roomId, targetId) {
const range = this._store.IDBKeyRange.bound(
encodeKey(roomId, targetId, MIN_UNICODE, MIN_UNICODE),
encodeKey(roomId, targetId, MAX_UNICODE, MAX_UNICODE),
true,
true
);
return this._store.delete(range);
}
async getForTargetAndType(roomId, targetId, relType) {
// exclude both keys as they are theoretical min and max,
// but we should't have a match for just the room id, or room id with max
const range = this._store.IDBKeyRange.bound(
encodeKey(roomId, targetId, relType, MIN_UNICODE),
encodeKey(roomId, targetId, relType, MAX_UNICODE),
true,
true
);
const keys = await this._store.selectAll(range);
return keys.map(decodeKey);
}
}