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Viewing file:     MongoDBStorage.js (2.01 KB)      -rw-r--r--

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _Storage = _interopRequireDefault(require("./Storage"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * @class MongoDBStorage
 */
class MongoDBStorage extends _Storage.default {
  /**
   * Constructs MongoDB collection storage.
   *
   * @param {Object} [options]
   * Required either connection and collectionName OR collection
   * @param {String} [options.connection] - a connection to target database established with MongoDB Driver
   * @param {String} [options.collectionName] - name of migration collection in MongoDB
   * @param {String} [options.collection] - reference to a MongoDB Driver collection
   */
  constructor({
    connection,
    collectionName,
    collection
  }) {
    super();
    this.connection = connection;
    this.collection = collection;
    this.collectionName = collectionName || 'migrations';

    if (!this.connection && !this.collection) {
      throw new Error('MongoDB Connection or Collection required');
    }

    if (!this.collection) {
      this.collection = this.connection.collection(this.collectionName);
    }
  }
  /**
   * Logs migration to be considered as executed.
   *
   * @param {String} migrationName - Name of the migration to be logged.
   * @returns {Promise}
   */


  logMigration(migrationName) {
    return this.collection.insertOne({
      migrationName
    });
  }
  /**
   * Unlogs migration to be considered as pending.
   *
   * @param {String} migrationName - Name of the migration to be unlogged.
   * @returns {Promise}
   */


  unlogMigration(migrationName) {
    return this.collection.removeOne({
      migrationName
    });
  }
  /**
   * Gets list of executed migrations.
   *
   * @returns {Promise.<String[]>}
   */


  executed() {
    return this.collection.find({}).sort({
      migrationName: 1
    }).toArray().then(records => records.map(r => r.migrationName));
  }

}

exports.default = MongoDBStorage;