vitamin/lib/relations/belongs-to.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 _base = require('./base');

var _base2 = _interopRequireDefault(_base);

var _oneToOne = require('./mixins/one-to-one');

var _oneToOne2 = _interopRequireDefault(_oneToOne);

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
var _class = function (_mixin) {
  _inherits(_class, _mixin);

  /**
   * BelongsToRelation constructor
   * 
   * @param {Model} parent model instance
   * @param {Model} target model instance
   * @param {String} fk parent model foreign key
   * @param {String} pk target model primary key
   * @constructor
   */
  function _class(parent, target, fk, pk) {
    _classCallCheck(this, _class);

    var _this = _possibleConstructorReturn(this, (_class.__proto__ || Object.getPrototypeOf(_class)).call(this, parent, target));

    _this.localKey = fk;
    _this.otherKey = pk;
    return _this;
  }

  /**
   * Associate the model instance to the current model
   * 
   * @param {Model} model
   * @return parent model
   */


  _createClass(_class, [{
    key: 'associate',
    value: function associate(model) {
      return this.model.set(this.localKey, model.get(this.otherKey));
    }

    /**
     * Dissociate the parent model from the current model
     * 
     * @return parent model
     */

  }, {
    key: 'dissociate',
    value: function dissociate() {
      return this.model.set(this.localKey, null);
    }
  }]);

  return _class;
}((0, _oneToOne2.default)(_base2.default));

exports.default = _class;