Question

我正在设法建立一个工厂。在这里的帮助下，我将几个函数从OrderFormController移动到工厂。我遇到了一个关于使用forEach来通过动态ng-repeat数组的函数的新问题。这就是我的......

OrderFormController的代码，它包含我试图移动的函数..

app.controller('OrderFormController', function($scope) {
    $scope.total = function(){

    var total = 0;
    var dtotal = 0;
    var ftotal = 0;

    angular.forEach($scope.items.results, function(s){
        if (s.active){
            dtotal+= s.qty * s.price;
        }
    });
    angular.forEach($scope.options.results, function(s){
        if (s.active){
            ftotal+= s.price;
        }
    });
    total = dtotal + ftotal;

    return total;
    };
});

这是工厂

app.factory('OrderData', function() {
    var OrderFactory = {};

    OrderFactory.total = function(){

    var total = 0;

    angular.forEach(item, function(item){
        if (item.active){
            total+= item.qty * item.price;
        }
    });

    return total;
    };

return OrderFactory;

});

我的新控制器我试图使用

app.controller('OrderController', function($scope, OrderData) {

    $scope.total = OrderData.total;

});

html代码段

<md-list-item ng-repeat="item in items.results | filter:true" 
              layout="row">
              <span>{{ item.name }}</span>
              <span flex></span>
              <span>{{ item.price | currency}}</span>
              <span ng-repeat="option in options.results | filter:true">{{ option.name }}</span>
</md-list-item>
<md-divider></md-divider>
<md-list-item layout="row">
    <span>Order Total :</span>
    <span flex></span>
    <span>{{ total() | currency}}</span>
</md-list-item>

谢谢你看看

Answer 1

您的总方法应该接受item参数＆amp;从UI你应该传递items.results对象，以便服务可以迭代该数组。

<强>代码

OrderFactory.total = function(items) {
    var total = 0;
    angular.forEach(items, function(item) {
        if (item.active) {
            total += item.qty * item.price;
        }
    });
    return total;
};

<强>标记

<md-list-item ng-repeat="item in items.results | filter:true" layout="row">
    <span>{{ item.name }}</span>
    <span flex></span>
    <span>{{ item.price | currency}}</span>
    <span ng-repeat="option in options.results | filter:true">{{ option.name }}</span>
</md-list-item>
<md-divider></md-divider>
<md-list-item layout="row">
    <span>Order Total :</span>
    <span flex></span>
    <span>{{ total(items.results) | currency}}</span>
</md-list-item>

Answer 2

好的问题是

<span>{{ total(items) | currency}}</span>

需要更改为

<span>{{ total(items.results) | currency}}</span>

AngularJS建立一个遍历ng-repeat数组的工厂

2 个答案: