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Code Issues Releases Activity

Api: Resolves #5199: Add support for "events" end point to retrieve info about latest note changes

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This commit is contained in:
Laurent Cozic
2021-08-30 18:53:24 +01:00
parent ce89ee5bab
commit b88b747ba6
12 changed files with 267 additions and 21 deletions
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40
packages/lib/models/ItemChange.ts
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@@ -1,8 +1,14 @@
import BaseModel, { ModelType } from '../BaseModel';
import shim from '../shim';
import eventManager from '../eventManager';
import { ItemChangeEntity } from '../services/database/types';
const Mutex = require('async-mutex').Mutex;
export interface ChangeSinceIdOptions {
limit?: number;
fields?: string[];
}
export default class ItemChange extends BaseModel {
private static addChangeMutex_: any = new Mutex();
@@ -24,7 +30,7 @@ export default class ItemChange extends BaseModel {
return BaseModel.TYPE_ITEM_CHANGE;
}
static async add(itemType: ModelType, itemId: string, type: number, changeSource: any = null, beforeChangeItemJson: string = null) {
public static async add(itemType: ModelType, itemId: string, type: number, changeSource: any = null, beforeChangeItemJson: string = null) {
if (changeSource === null) changeSource = ItemChange.SOURCE_UNSPECIFIED;
if (!beforeChangeItemJson) beforeChangeItemJson = '';
@@ -57,14 +63,14 @@ export default class ItemChange extends BaseModel {
}
}
static async lastChangeId() {
public static async lastChangeId() {
const row = await this.db().selectOne('SELECT max(id) as max_id FROM item_changes');
return row && row.max_id ? row.max_id : 0;
}
// Because item changes are recorded in the background, this function
// can be used for synchronous code, in particular when unit testing.
static async waitForAllSaved() {
public static async waitForAllSaved() {
return new Promise((resolve) => {
const iid = shim.setInterval(() => {
if (!ItemChange.saveCalls_.length) {
@@ -75,8 +81,32 @@ export default class ItemChange extends BaseModel {
});
}
static async deleteOldChanges(lowestChangeId: number) {
public static async deleteOldChanges(lowestChangeId: number, itemMinTtl: number) {
if (!lowestChangeId) return;
return this.db().exec('DELETE FROM item_changes WHERE id <= ?', [lowestChangeId]);
const cutOffDate = Date.now() - itemMinTtl;
return this.db().exec(`
DELETE FROM item_changes
WHERE id <= ?
AND created_time <= ?
`, [lowestChangeId, cutOffDate]);
}
public static async changesSinceId(changeId: number, options: ChangeSinceIdOptions = null): Promise<ItemChangeEntity[]> {
options = {
limit: 100,
fields: ['id', 'item_type', 'item_id', 'type', 'created_time'],
...options,
};
return this.db().selectAll(`
SELECT ${this.db().escapeFieldsToString(options.fields)}
FROM item_changes
WHERE id > ?
ORDER BY id
LIMIT ?
`, [changeId, options.limit]);
}
}