Method findOrBuild

lib/model.js:2246–2269

* Find a row that matches the query, or build (but don't save) the row if none is found. * The successful result of the promise will be (instance, built) * * @param {object} options find options * @param {object} options.where A hash of search attributes. If `where` is a plain object

(options)

   * @returns {Promise<Model,boolean>}
   */
  static async findOrBuild(options) {
    if (!options || !options.where || arguments.length > 1) {
      throw new Error(
        'Missing where attribute in the options parameter passed to findOrBuild. ' +
        'Please note that the API has changed, and is now options only (an object with where, defaults keys, transaction etc.)'
      );
    }

    let values;

    let instance = await this.findOne(options);
    if (instance === null) {
      values = { ...options.defaults };
      if (_.isPlainObject(options.where)) {
        values = Utils.defaults(values, options.where);
      }

      instance = this.build(values, options);

      return [instance, true];
    }

    return [instance, false];
  }

  /**
   * Find a row that matches the query, or build and save the row if none is found