我想使用filterin 角度并希望过滤多个值，如果它具有其中一个值，则应该显示它。
例如，我有这个结构：
movie一个具有属性的对象，genres我想过滤Action和Comedy。
我知道我可以做filter:({genres: 'Action'} || {genres: 'Comedy'})，但是如果我想动态过滤它怎么办。例如filter: variableX
当我有一系列必须过滤的类型时，如何在 中设置variableX？$scope
我可以将它构造为一个字符串，然后做一个eval()但我不想使用 eval()...
我只想创建一个自定义过滤器。他们没有那么难。
angular.module('myFilters', []).
filter('bygenre', function() {
return function(movies,genres) {
var out = [];
// Filter logic here, adding matches to the out var.
return out;
}
});
<h1>Movies</h1>
<div ng-init="movies = [
{title:'Man on the Moon', genre:'action'},
{title:'Meet the Robinsons', genre:'family'},
{title:'Sphere', genre:'action'}
];" />
<input type="checkbox" ng-model="genrefilters.action" />Action
<br />
<input type="checkbox" ng-model="genrefilters.family" />Family
<br />{{genrefilters.action}}::{{genrefilters.family}}
<ul>
<li ng-repeat="movie in movies | bygenre:genrefilters">{{movie.title}}: {{movie.genre}}</li>
</ul>
在此处编辑是链接：创建角度过滤器
更新：这是一个小提琴，其中包含我的建议的精确演示。
您可以使用控制器功能进行过滤。
function MoviesCtrl($scope) {
$scope.movies = [{name:'Shrek', genre:'Comedy'},
{name:'Die Hard', genre:'Action'},
{name:'The Godfather', genre:'Drama'}];
$scope.selectedGenres = ['Action','Drama'];
$scope.filterByGenres = function(movie) {
return ($scope.selectedGenres.indexOf(movie.genre) !== -1);
};
}
HTML：
<div ng-controller="MoviesCtrl">
<ul>
<li ng-repeat="movie in movies | filter:filterByGenres">
{{ movie.name }} {{ movie.genre }}
</li>
</ul>
</div>
在这里创建自定义过滤器可能有点过头了，你可以传入一个自定义比较器，如果你有多个值，比如：
$scope.selectedGenres = "Action, Drama";
$scope.containsComparator = function(expected, actual){
return actual.indexOf(expected) > -1;
};
然后在过滤器中：
filter:{name:selectedGenres}:containsComparator
这是自定义过滤器的实现，它将使用值数组过滤数据。它将支持具有数组和单个键值的多个键对象。如前所述，inangularJS API AngularJS 过滤器文档支持单个值的多个键过滤器，但下面的自定义过滤器将支持与 angularJS 相同的功能，并且还支持值数组以及数组和键值的组合。请在下面找到代码片段，
myApp.filter('filterMultiple',['$filter',function ($filter) {
return function (items, keyObj) {
var filterObj = {
data:items,
filteredData:[],
applyFilter : function(obj,key){
var fData = [];
if (this.filteredData.length == 0)
this.filteredData = this.data;
if (obj){
var fObj = {};
if (!angular.isArray(obj)){
fObj[key] = obj;
fData = fData.concat($filter('filter')(this.filteredData,fObj));
} else if (angular.isArray(obj)){
if (obj.length > 0){
for (var i=0;i<obj.length;i++){
if (angular.isDefined(obj[i])){
fObj[key] = obj[i];
fData = fData.concat($filter('filter')(this.filteredData,fObj));
}
}
}
}
if (fData.length > 0){
this.filteredData = fData;
}
}
}
};
if (keyObj){
angular.forEach(keyObj,function(obj,key){
filterObj.applyFilter(obj,key);
});
}
return filterObj.filteredData;
}
}]);
用法：
arrayOfObjectswithKeys | filterMultiple:{key1:['value1','value2','value3',...etc],key2:'value4',key3:[value5,value6,...etc]}
这是一个实现上述“filterMutiple”自定义过滤器的小提琴示例。 :::小提琴示例:::
如果你想过滤对象数组，那么你可以给
filter:({genres: 'Action', key :value }.
单个属性将由为该属性指定的特定过滤器过滤。
但是，如果您想按单个属性进行过滤并针对所有属性进行全局过滤，那么您可以执行类似的操作。
<tr ng-repeat="supp in $data | filter : filterObject | filter : search">~阿图尔
我花了一些时间，感谢@chrismarx，我看到 angular 的默认设置filterFilter允许您传递自己的比较器。这是多个值的编辑比较器：
function hasCustomToString(obj) {
return angular.isFunction(obj.toString) && obj.toString !== Object.prototype.toString;
}
var comparator = function (actual, expected) {
if (angular.isUndefined(actual)) {
// No substring matching against `undefined`
return false;
}
if ((actual === null) || (expected === null)) {
// No substring matching against `null`; only match against `null`
return actual === expected;
}
// I edited this to check if not array
if ((angular.isObject(expected) && !angular.isArray(expected)) || (angular.isObject(actual) && !hasCustomToString(actual))) {
// Should not compare primitives against objects, unless they have custom `toString` method
return false;
}
// This is where magic happens
actual = angular.lowercase('' + actual);
if (angular.isArray(expected)) {
var match = false;
expected.forEach(function (e) {
e = angular.lowercase('' + e);
if (actual.indexOf(e) !== -1) {
match = true;
}
});
return match;
} else {
expected = angular.lowercase('' + expected);
return actual.indexOf(expected) !== -1;
}
};
如果我们想为 DRY 制作一个自定义过滤器：
angular.module('myApp')
.filter('filterWithOr', function ($filter) {
var comparator = function (actual, expected) {
if (angular.isUndefined(actual)) {
// No substring matching against `undefined`
return false;
}
if ((actual === null) || (expected === null)) {
// No substring matching against `null`; only match against `null`
return actual === expected;
}
if ((angular.isObject(expected) && !angular.isArray(expected)) || (angular.isObject(actual) && !hasCustomToString(actual))) {
// Should not compare primitives against objects, unless they have custom `toString` method
return false;
}
console.log('ACTUAL EXPECTED')
console.log(actual)
console.log(expected)
actual = angular.lowercase('' + actual);
if (angular.isArray(expected)) {
var match = false;
expected.forEach(function (e) {
console.log('forEach')
console.log(e)
e = angular.lowercase('' + e);
if (actual.indexOf(e) !== -1) {
match = true;
}
});
return match;
} else {
expected = angular.lowercase('' + expected);
return actual.indexOf(expected) !== -1;
}
};
return function (array, expression) {
return $filter('filter')(array, expression, comparator);
};
});
然后我们可以在任何我们想要的地方使用它：
$scope.list=[
{name:'Jack Bauer'},
{name:'Chuck Norris'},
{name:'Superman'},
{name:'Batman'},
{name:'Spiderman'},
{name:'Hulk'}
];
<ul>
<li ng-repeat="item in list | filterWithOr:{name:['Jack','Chuck']}">
{{item.name}}
</li>
</ul>
最后这是一个plunkr。
注意：预期的数组应该只包含简单的对象，如String、Number等。
您可以使用 angular.filter 的 searchField 过滤器
JS：
$scope.users = [
{ first_name: 'Sharon', last_name: 'Melendez' },
{ first_name: 'Edmundo', last_name: 'Hepler' },
{ first_name: 'Marsha', last_name: 'Letourneau' }
];
HTML：
<input ng-model="search" placeholder="search by full name"/>
<th ng-repeat="user in users | searchField: 'first_name': 'last_name' | filter: search">
{{ user.first_name }} {{ user.last_name }}
</th>
<!-- so now you can search by full name -->
ngIf如果情况允许，您也可以使用：
<div ng-repeat="p in [
{ name: 'Justin' },
{ name: 'Jimi' },
{ name: 'Bob' }
]" ng-if="['Jimi', 'Bob'].indexOf(e.name) > -1">
{{ p.name }} is cool
</div>
The quickest solution that I've found is to use the filterBy filter from angular-filter, for example:
<input type="text" placeholder="Search by name or genre" ng-model="ctrl.search"/>
<ul>
<li ng-repeat="movie in ctrl.movies | filterBy: ['name', 'genre']: ctrl.search">
{{movie.name}} ({{movie.genre}}) - {{movie.rating}}
</li>
</ul>
The upside is that angular-filter is a fairly popular library (~2.6k stars on GitHub) which is still actively developed and maintained, so it should be fine to add it to your project as a dependency.
我相信这就是您正在寻找的：
<div>{{ (collection | fitler1:args) + (collection | filter2:args) }}</div>
假设您有两个数组，一个用于电影，一个用于流派
只需将过滤器用作：filter:{genres: genres.type}
这里的流派是数组，类型对流派有价值
请试试这个
var m = angular.module('yourModuleName');
m.filter('advancefilter', ['$filter', function($filter){
return function(data, text){
var textArr = text.split(' ');
angular.forEach(textArr, function(test){
if(test){
data = $filter('filter')(data, test);
}
});
return data;
}
}]);
我为字符串和功能编写了这个（我知道这不是问题，但我搜索并到了这里），也许它可以扩展。
String.prototype.contains = function(str) {
return this.indexOf(str) != -1;
};
String.prototype.containsAll = function(strArray) {
for (var i = 0; i < strArray.length; i++) {
if (!this.contains(strArray[i])) {
return false;
}
}
return true;
}
app.filter('filterMultiple', function() {
return function(items, filterDict) {
return items.filter(function(item) {
for (filterKey in filterDict) {
if (filterDict[filterKey] instanceof Array) {
if (!item[filterKey].containsAll(filterDict[filterKey])) {
return false;
}
} else {
if (!item[filterKey].contains(filterDict[filterKey])) {
return false;
}
}
}
return true;
});
};
});
用法：
<li ng-repeat="x in array | filterMultiple:{key1: value1, key2:[value21, value22]}">{{x.name}}</li>
角度或过滤器模块
$filter('orFilter')([{..}, {..} ...], {arg1, arg2, ...}, false)
我有类似的情况。编写自定义过滤器对我有用。希望这可以帮助！
JS：
App.filter('searchMovies', function() {
return function (items, letter) {
var resulsts = [];
var itemMatch = new RegExp(letter, 'i');
for (var i = 0; i < items.length; i++) {
var item = items[i];
if ( itemMatch.test(item.name) || itemMatch.test(item.genre)) {
results.push(item);
}
}
return results;
};
});
HTML：
<div ng-controller="MoviesCtrl">
<ul>
<li ng-repeat="movie in movies | searchMovies:filterByGenres">
{{ movie.name }} {{ movie.genre }}
</li>
</ul>
</div>
这是我的示例如何为表jsfiddle创建过滤器和指令
指令获取列表（数据）并使用过滤器创建表
<div ng-app="autoDrops" ng-controller="HomeController">
<div class="row">
<div class="col-md-12">
<h1>{{title}}</h1>
<ng-Multiselect array-List="datas"></ng-Multiselect>
</div>
</div>
</div>
如果我能帮助你，我很高兴
Too late to join the party but may be it can help someone:
We can do it in two step, first filter by first property and then concatenate by second filter:
$scope.filterd = $filter('filter')($scope.empList, { dept: "account" });
$scope.filterd = $scope.filterd.concat($filter('filter')($scope.empList, { dept: "sales" }));
OPTION 1: Using Angular providered filter comparator parameter
// declaring a comparator method
$scope.filterBy = function(actual, expected) {
return _.contains(expected, actual); // uses underscore library contains method
};
var employees = [{name: 'a'}, {name: 'b'}, {name: 'c'}, {name: 'd'}];
// filter employees with name matching with either 'a' or 'c'
var filteredEmployees = $filter('filter')(employees, {name: ['a','c']}, $scope.filterBy);
OPTION 2: Using Angular providered filter negation
var employees = [{name: 'a'}, {name: 'b'}, {name: 'c'}, {name: 'd'}];
// filter employees with name matching with either 'a' or 'c'
var filteredEmployees = $filter('filter')($filter('filter')(employees, {name: '!d'}), {name: '!b'});
我的解决方案
ng-repeat="movie in movies | filter: {'Action'} + filter: {'Comedy}"
最好的答案是：
filter:({genres: 'Action', genres: 'Comedy'}