我正在研究链接多个过滤器,但在思考它时我意识到它创建了一个极端数量的代码(减少将是这个用例中的最佳术语),这让我想知道这是否可以做得更多动态/一概而论。基本上我有5-6下拉菜单,用户可以选择一个或多个选项来过滤数据。我基于一个下拉菜单制作了这个,但我想进一步扩展它。在这个代码示例中,我有一个下拉菜单,它根据一列进行排序。
JavaScript的:
<script>
'use strict';
var App = angular.module('App',['ngResource','App.filters']);
App.controller('ExerciseCtrl', ['$scope','$http', function($scope, $http) {
$scope.selectedMainMuscle = [];
$http.get('/rest/exercises/')
.then(function(res){
$scope.exercises = res.data;
});
$scope.orderProp = 'name';
$http.get('/rest/muscles/')
.then(function(res){
$scope.muscles = res.data;
});
$scope.isChecked = function () {
if (_.contains($scope.selectedMainMuscle, this.muscle.id)) {
return 'glyphicon glyphicon-ok pull-right';
}
return false;
};
$scope.setSelectedMainMuscle = function () {
var id = this.muscle.id;
if (_.contains($scope.selectedMainMuscle, id)) {
$scope.selectedMainMuscle = _.without($scope.selectedMainMuscle, id);
} else {
$scope.selectedMainMuscle.push(id);
}
return false;
};
}]);
angular.module('App.filters', []).filter('mainMuscleFilter', [function () {
return function (exercises, selectedMainMuscle) {
if (!angular.isUndefined(exercises) && !angular.isUndefined(selectedMainMuscle) && selectedMainMuscle.length > 0) {
var tempClients = [];
angular.forEach(selectedMainMuscle, function (id) {
angular.forEach(exercises, function (exercise) {
if (angular.equals(exercise.main_muscle.id, id)) {
tempClients.push(exercise);
}
});
});
return tempClients;
} else {
return exercises;
}
};
}]);
</script>
HTML:
<div class="btn-group" ng-class="{open: dd2}">
<button type="button" class="btn btn-default dropdown-toggle" ng-click="dd2=!dd2">Main muscle <span class="caret"></span></button>
<ul class="dropdown-menu">
<li ng-repeat="muscle in muscles">
<a href ng-click="setSelectedMainMuscle()">{%verbatim%}{{muscle.name}}{%endverbatim%} <span data-ng-class="isChecked()"></span></a>
</li>
</ul>
</div>
<table class="table table-hover" >
<tr><td><strong>Name</strong></td><td><strong>Main muscle</strong></td><td><strong>Equipment</strong></td></tr>
<tr ng-repeat="exercise in filtered = (exercises | mainMuscleFilter:selectedMainMuscle)">
{%verbatim%}<td>{{exercise.name}}</td><td>{{exercise.main_muscle.name}}</td><td>{{exercise.equipment.name}}</td>{%endverbatim%}
</tr>
</table>
答案 0 :(得分:1)
我会在一个过滤器中执行所有检查,我不知道mainMuscleFilter
如何可以重复使用以保证分离,更不用说包含在一个单独的模块中了。您可以概括您的方法以在数组中切换id的包含,并检查包含但是:
$scope.selected = {
muscle: [],
equipment: []
};
$scope.isChecked = function (arr, id) {
if (_.contains(arr, id)) {
return 'glyphicon glyphicon-ok pull-right';
}
return false;
};
$scope.toggleInclusion = function (arr, id) {
var index = arr.indexOf(id);
if (index >= 0) {
arr.splice(index, 1);
} else {
arr.push(id);
}
return false;
};
HTML:
<li ng-repeat="muscle in muscles">
<a href ng-click="toggleInclusion(selected.muscle, muscle.id)">
{{muscle.name}}
<span data-ng-class="isChecked(selected.muscle, muscle.id)"></span>
</a>
</li>