| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| import _ from 'lodash'; |
| |
| // Service to normalize objects for dirty checks. |
| export default function() { |
| /** |
| * Normalize object for dirty checks. |
| * |
| * @param original |
| * @param dest |
| * @returns {*} |
| */ |
| const normalize = (original, dest) => { |
| if (_.isUndefined(original)) |
| return dest; |
| |
| if (_.isObject(original)) { |
| _.forOwn(original, (value, key) => { |
| if (/\$\$hashKey/.test(key)) |
| return; |
| |
| const attr = normalize(value); |
| |
| if (!_.isNil(attr)) { |
| dest = dest || {}; |
| dest[key] = attr; |
| } |
| }); |
| } else if (_.isBoolean(original) && original === true) |
| dest = original; |
| else if ((_.isString(original) && original.length) || _.isNumber(original)) |
| dest = original; |
| else if (_.isArray(original) && original.length) |
| dest = _.map(original, (value) => normalize(value, {})); |
| |
| return dest; |
| }; |
| |
| return { |
| normalize, |
| isEqual(prev, cur) { |
| return _.isEqual(prev, normalize(cur)); |
| } |
| }; |
| } |