1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | 1 1 1 4 4 1 1 1 1 1 2 1 182 182 1216 1216 259 957 182 | 'use strict'; ;require.register("utils/data_manipulation", function (exports, require, module) { /** * 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. */ module.exports = { /** * Exclude objects from <code>collection</code> if its <code>key</code> exist in <code>valuesToReject</code> * Example: * <code> * var collection = [{n: 'v1'}, {n: 'v2'}, {n: 'v3'}, {n: 'v4'}], * key = 'n', * valuesToReject = ['v2', 'v3']; * var result = rejectPropertyValues(collection, key, valuesToReject); // [{n: 'v1'}, {n: 'v4'}] * </code> * @param {Object[]} collection array of objects * @param {String} key property name of each object to be checked * @param {String[]} valuesToReject list of <code>key</code> values. Objects with <code>key</code>, * equal to one of them, will be excluded * @returns {Object[]} Rejected array */ rejectPropertyValues: function rejectPropertyValues(collection, key, valuesToReject) { return collection.filter(function (item) { var propertyValue = Em.get(item, key); return !valuesToReject.contains(propertyValue); }); }, /** * Wrapper to <code>filterProperty</code>-method that allows using list of values to filter * Example: * <code> * var collection = [{n: 'v1'}, {n: 'v2'}, {n: 'v3'}, {n: 'v4'}], * key = 'n', * valuesToFilter = ['v2', 'v3']; * var result = filterPropertyValues(collection, key, valuesToFilter); // [{n: 'v2'}, {n: 'v3'}] * </code> * @param {Object[]} collection array of objects * @param {String} key property name of each object to be filtered * @param {String|String[]} valuesToFilter array of values (or one value-string) to filter * @returns {Object[]} Filtered array */ filterPropertyValues: function filterPropertyValues(collection, key, valuesToFilter) { var type = Em.typeOf(valuesToFilter); Iif ('string' === type) return collection.filterProperty(key, valuesToFilter); var ret = []; Eif ('array' === type) { valuesToFilter.forEach(function (value) { ret = ret.concat(collection.filterProperty(key, value)); }); } return ret; }, /** * Group <code>collection</code> items by <code>key</code> value * Example: * <code> * var collection = [{n: 'v1'}, {n: 'v2'}, {n: 'v2'}, {n: 'v4'}], * key = 'n'; * var result = groupPropertyValues(collection, key); // {v1: [{n: 'v1'}], v2: [{n: 'v2'}, {n: 'v2'}], v4: [{n: 'v4'}]} * </code> * @param {Object[]} collection array of objects * @param {String} key property name of each object to be grouped * @returns {object} */ groupPropertyValues: function groupPropertyValues(collection, key) { var group = {}; collection.forEach(function (item) { var value = Em.get(item, key); if (Em.isNone(group[value])) { group[value] = [item]; } else { group[value].pushObject(item); } }); return group; } }; }); |