foam-framework/js/foam/dao/GUIDDAO.js

MVC metaprogramming framework

/**
 * @license
 * Copyright 2014 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


CLASS({
  package: 'foam.dao',
  name: 'GUIDDAO',
  label: 'foam.dao.GUIDDAO',

  extends: 'foam.dao.ProxyDAO',

  properties: [
    {
      name: 'property',
      type: 'Property',
      required: true,
      hidden: true,
      defaultValueFn: function() {
        return this.delegate.model ? this.delegate.model.ID : undefined;
      },
      transient: true
    }
  ],

  methods: {
    put: function(obj, sink) {
      if ( ! obj.hasOwnProperty(this.property.name) )
        obj[this.property.name] = createGUID();

      this.delegate.put(obj, sink);
    }
  }
});