vitamin/lib/relations/morph-one-or-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 _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };

var _hasOneOrMany = require('./has-one-or-many');

var _hasOneOrMany2 = _interopRequireDefault(_hasOneOrMany);

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 (_Relation) {
  _inherits(_class, _Relation);

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

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

    _this.morphType = type;
    _this.morphName = parent.name;
    return _this;
  }

  /**
   * Save a related model instance into the database
   * 
   * @param {Model} model
   * @param {Array} returning
   * @return Promise
   */


  _createClass(_class, [{
    key: 'save',
    value: function save(model) {
      var returning = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ['*'];

      return _get(_class.prototype.__proto__ || Object.getPrototypeOf(_class.prototype), 'save', this).call(this, model.set(this.morphType, this.morphName), returning);
    }

    /**
     * Add constraints on the relation query
     * 
     * @param {Model} model
     * @return this relation
     */

  }, {
    key: 'addConstraints',
    value: function addConstraints(model) {
      this.addMorphTypeConstraint();
      return _get(_class.prototype.__proto__ || Object.getPrototypeOf(_class.prototype), 'addConstraints', this).call(this, model);
    }

    /**
     * Get the qualified morph type name
     * 
     * @return string
     */

  }, {
    key: 'getQualifiedTypeColumn',
    value: function getQualifiedTypeColumn() {
      return this.query.getQualifiedColumn(this.morphType);
    }

    /**
     * Add `morphType` constraint on the relation query
     * 
     * @private
     */

  }, {
    key: 'addMorphTypeConstraint',
    value: function addMorphTypeConstraint() {
      this.query.where(this.getQualifiedTypeColumn(), this.morphName);
    }

    /**
     * Add eager load constraints on the relation query
     * 
     * @param {Array} models
     * @private
     */

  }, {
    key: 'addEagerLoadConstraints',
    value: function addEagerLoadConstraints(models) {
      _get(_class.prototype.__proto__ || Object.getPrototypeOf(_class.prototype), 'addEagerLoadConstraints', this).call(this, models);
      this.addMorphTypeConstraint();
    }
  }]);

  return _class;
}(_hasOneOrMany2.default);

exports.default = _class;