我正在重写一个角度选择选项,之前我正在使用一个带有许多li类的bootstrap btn-group类,它使用ng-click在我的ng-repeat列表中设置一个过滤器,它完美地工作。像这样:
<li role="menuitem">
<a ng-click="myFilter = { moving: true }">Delivery & Removals</a>
</li>
但是,在收到一些反馈后,系统会要求我将其更改为设置<select>
的{{1}},以反映所选的选项。
我已经在控制器范围中添加了一个列表,如下所示:
<option>
这是选择
$scope.taskCategories = [
{'cat': 'Moving & Delivery', 'filter': 'moving: true'},
{'cat': 'DIY', 'filter': 'DIY: true'},
{'cat': 'Marketing', 'filter': 'marketing: true' }
]
这是我的ng-repeat
{{ selectedCat.filter }}
<select ng-model="selectedCat" ng-value="x.filter" ng-options="x.cat for x in taskCategories">
</select>
为了给出一些相关性,我的ng-click过滤器的工作原理如下:
data-ng-repeat="task in vm.tasks | filter:search | filter:myFilter | filter: { filter: selectedCat.filter } : true | orderBy:predicate:reverse | filter:x as results"
然而,当我点击我的一个选择值(通过$ scope.taskCategories重复ng)时,我的ng-repeat返回0结果,这是不正确的。
如果有人能给我任何关于我哪里出错的指示,我将非常感激。提前致谢! :)
答案 0 :(得分:2)
您可以创建自定义过滤器并按对象内的属性进行搜索,如下所示:
(function(angular) {
'use strict';
angular.module('ngRepeat', ['ngAnimate'])
.controller('repeatController', function($scope) {
$scope.tasks = [
{
'created': "2016-07-02T21:01:56.095Z",
'description':"hang it",
'dueDate':"2016-07-02T22:00:00.000Z",
'inPersonTask':true,
'isCurrentUserOwner':false,
'moving':true,
'profileImageURL':"modules/users/client/img/profile/default.png",
'statusAssigned':false,
'statusClosed':false,
'statusOpen':true,
'taskLocation':"eerywhere",
'title':'example 3'
},
{
'created': "2016-07-02T21:01:56.095Z",
'description':"hang it",
'dueDate':"2016-07-02T22:00:00.000Z",
'inPersonTask':true,
'isCurrentUserOwner':false,
'DIY':true,
'profileImageURL':"modules/users/client/img/profile/default.png",
'statusAssigned':false,
'statusClosed':false,
'statusOpen':true,
'taskLocation':"the world",
'title':'example 2'
},
{
'created': "2016-07-02T21:01:56.095Z",
'description':"hang it",
'dueDate':"2016-07-02T22:00:00.000Z",
'inPersonTask':true,
'isCurrentUserOwner':false,
'marketing':true,
'profileImageURL':"modules/users/client/img/profile/default.png",
'statusAssigned':false,
'statusClosed':false,
'statusOpen':true,
'taskLocation':"the world",
'title':'example 3'
}
];
$scope.taskCategories = [
{'cat': 'Moving & Delivery', 'filter': 'moving: true'},
{'cat': 'DIY', 'filter': 'DIY: true'},
{'cat': 'Marketing', 'filter': 'marketing: true' }
];
})
.filter('customFilter', function() {
return function(items, search) {
if (!search) {
return items;
}
return items.filter(function(element) {
// Ex: moving: true, becomes just 'moving'
return Object.getOwnPropertyNames(element).find(x => x == search.substring(0, search.indexOf(':')));
});
};
});
})(window.angular);
.example-animate-container {
background:white;
border:1px solid black;
list-style:none;
margin:0;
padding:0 10px;
}
.animate-repeat {
line-height:30px;
list-style:none;
box-sizing:border-box;
}
.animate-repeat.ng-move,
.animate-repeat.ng-enter,
.animate-repeat.ng-leave {
transition:all linear 0.5s;
}
.animate-repeat.ng-leave.ng-leave-active,
.animate-repeat.ng-move,
.animate-repeat.ng-enter {
opacity:0;
max-height:0;
}
.animate-repeat.ng-leave,
.animate-repeat.ng-move.ng-move-active,
.animate-repeat.ng-enter.ng-enter-active {
opacity:1;
max-height:30px;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Example</title>
<link href="animations.css" rel="stylesheet" type="text/css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.7/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.7/angular-animate.min.js"></script>
</head>
<body ng-app="ngRepeat">
<div ng-controller="repeatController">
<!-- list of tasks /-->
<h3>List of tasks, without filter</h3>
<ul class="example-animate-container">
<li class="animate-repeat" ng-repeat="task in tasks">[{{$index + 1}}] {{ task.title }}, {{ task.taskLocation }}</li>
</ul>
<!-- list of tasks with filter /-->
<h3>List of tasks with filter -- results are not showing</h3>
<p>{{ selectedCat }}</p>
<select ng-model="selectedCat" ng-options="x.cat for x in taskCategories" ng-value="x.filter">
</select>
<ul>
<li class="animate-repeat" ng-repeat="task in tasks | customFilter: selectedCat.filter">
[{{$index + 1}}] {{ task.title }}, {{ task.taskLocation }}</li>
</ul>
</div>
</body>
</html>