shelving/db/provider/ChangesDBProvider.js

Toolkit for using data in JavaScript.

import { ThroughDBProvider } from "./ThroughDBProvider.js";
/**
 * Database provider that keeps a log of any written changes to its `.changes` property.
 * - This is useful if you want to hook into a database to build out audit logging functionality.
 */
export class ChangesDBProvider extends ThroughDBProvider {
    get changes() {
        return this._changes;
    }
    _changes = [];
    async addItem(collection, data) {
        const id = await super.addItem(collection, data);
        this._changes.push({ action: "add", collection: collection.name, id, data });
        return id;
    }
    async setItem(collection, id, data) {
        await super.setItem(collection, id, data);
        this._changes.push({ action: "set", collection: collection.name, id, data });
    }
    async updateItem(collection, id, updates) {
        await super.updateItem(collection, id, updates);
        this._changes.push({ action: "update", collection: collection.name, id, updates });
    }
    async deleteItem(collection, id) {
        await super.deleteItem(collection, id);
        this._changes.push({ action: "delete", collection: collection.name, id });
    }
    async setQuery(collection, query, data) {
        await super.setQuery(collection, query, data);
        this._changes.push({ action: "set", collection: collection.name, query, data });
    }
    async updateQuery(collection, query, updates) {
        await super.updateQuery(collection, query, updates);
        this._changes.push({ action: "update", collection: collection.name, query, updates });
    }
    async deleteQuery(collection, query) {
        await super.deleteQuery(collection, query);
        this._changes.push({ action: "delete", collection: collection.name, query });
    }
}