foam-framework/js/foam/dao/DeDupDAO.js

MVC metaprogramming framework

/**
 * @license
 * Copyright 2015 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: 'DeDupDAO',
  extends: 'foam.dao.ProxyDAO',

  methods: [
    function put(obj, sink) {
      this.dedup(obj);
      this.delegate.put(obj, sink);
    },
    function dedup(obj) {
      var inst = obj.instance_;
      for ( var key in inst ) {
        var val = inst[key];
        if ( typeof val === 'string' ) {
          inst[key] = val.intern();
        }
      }
    }
  ]
});