vitamin/lib/relations/mixins/one-to-many.js

Data Mapper library for Node.js applications

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _bluebird = require('bluebird');

var _bluebird2 = _interopRequireDefault(_bluebird);

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

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

// exports
exports.default = function (parent) {
  return function (_parent) {
    _inherits(_class, _parent);

    function _class() {
      _classCallCheck(this, _class);

      return _possibleConstructorReturn(this, (_class.__proto__ || Object.getPrototypeOf(_class)).apply(this, arguments));
    }

    _createClass(_class, [{
      key: 'load',


      /**
       * Get the result of the relationship
       * 
       * @param {Array} columns
       * @return promise
       */
      value: function load(columns) {
        var _getQuery;

        return (_getQuery = this.getQuery()).fetch.apply(_getQuery, arguments);
      }

      /**
       * Create many instances of the related model
       * 
       * @param {Array} records
       * @parma {Array} returning
       * @return promise
       */

    }, {
      key: 'createMany',
      value: function createMany(records) {
        var _this2 = this;

        var returning = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ['*'];

        return _bluebird2.default.map(records, function (attrs) {
          return _this2.create(attrs, returning);
        });
      }

      /**
       * Attach many models to the parent model
       * 
       * @param {Array} models
       * @parma {Array} returning
       * @return promise
       */

    }, {
      key: 'saveMany',
      value: function saveMany(models) {
        var _this3 = this;

        var returning = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ['*'];

        return _bluebird2.default.map(models, function (model) {
          return _this3.save(model, returning);
        });
      }

      /**
       * Build model dictionary keyed by the given key
       * 
       * @param {Collection} related
       * @param {String} key
       * @return plain object
       * @private
       */

    }, {
      key: 'buildDictionary',
      value: function buildDictionary(related, key) {
        return related.groupBy(key);
      }

      /**
       * Parse the value for the relationship
       * 
       * @param {Model} value
       * @return any
       * @private
       */

    }, {
      key: 'parseRelationValue',
      value: function parseRelationValue(value) {
        return this.target.newCollection(value || []);
      }
    }]);

    return _class;
  }(parent);
};