当NG-重复/ NG-类调用它调用$函数HTTP无限循环 [英] Infinite loop when ng-repeat/ng-class calls a function which calls $http

问题描述

如果你不知道这是什么，请阅读：<一href=\"http://stackoverflow.com/questions/17466872/infinite-loop-with-angular-ex$p$pssion-binding\">Infinite环与前角pression结合

If you have no idea what this is, please read this :Infinite loop with Angular expression binding

在HTML文件：

<ui ng-repeat="carrierDetail in carrierDetails">
    <li>
        <i ng-class="{'icon-sign-blank':getStatus(carrierDetail.carrierId)==0,'icon-green':getStatus(carrierDetail.carrierId)==1,'icon-orange':getStatus(carrierDetail.carrierId)==2,'icon-red':getStatus(carrierDetail.carrierId)==3}"></i>
        <ul ng-repeat="owner in getOwners(carrierDetail.carrierId)">
            <li>{{owner.ownerName}}</li>
        </ul>
    </li>
</ui>

正如你所见，函数的getStatus（）被称为纳克级和另一个函数 getOwners（）被称为 NG-重复。而且，这两个函数将调用 $ HTTP 服务：

As you see, a function getStatus() is called in ng-class and another function getOwners() is called in ng-repeat. And, both functions will call $http service:

$scope.getOwners = function(carrierId) {
    $http.get($scope.baseurl.smart,carrierId,1).then(function(data) {
        return data.data.carrierOwners; // Returns an aray
    }, function(data) {
        return [];
    });
}

$scope.getStatus = function(carrierId) {
    $http.get($scope.baseurl.smart,carrierId,1).then(function(data) {
        return [1, 2, 3].indexOf(data.data.carrierStatus) != -1 ? data.data.carrierStatus : 0; // Returns an integer
    }), function(data) {
        return 0;
    };
}

所以，我已经知道有两个函数调用无限。但我不能拿出一个解决方案。也许我可以为任何的功能创建一个指令。但我不知道如何使用指令纳克级或 NG-重复。是否有更简单的方法？谢谢你。

So, I already know that there are infinite calls for both functions. But I cannot come up with a solution. Maybe I can create a directive for either of the function. But I have no idea how to use the directive in ng-class or ng-repeat. Are there any simpler ways? Thanks.

推荐答案

首先，你的HTML不应该被调用函数pretty多少曾经（除了点击或类似的东西。

First, your html should not be calling functions pretty much ever (except for on click or something like that.

<ui ng-repeat="carrierDetail in carrierDetails">
    <li>
        <i ng-class="{'icon-sign-blank':carrierDetail.carrierId==0,'icon-green':carrierDetail.carrierId==1,'icon-orange':carrierDetail.carrierId==2,'icon-red':carrierDetail.carrierId==3}"></i>
        <ul ng-repeat="owner in owners">
            <li>{{owner.ownerName}}</li>
        </ul>
    </li>
</ui>

JS的，总体思路是：

The JS, the general idea is:

// assuming controller defined:
$scope.carriers = some kind of array;

$scope.getOwners = function(carrierId) {
    $http.get($scope.baseurl.smart,carrierId,1).then(function(data) {
        return data.data.carrierOwners; // Returns an arary
    }, function(data) {
        return [];
    });
}

$scope.getStatus = function(carrierId) {
    $http.get($scope.baseurl.smart,carrierId,1).then(function(data) {
        return [1, 2, 3].indexOf(data.data.carrierStatus) != -1 ? data.data.carrierStatus : 0; // Returns an integer
    }), function(data) {
        return 0;
    };
}



for( var i in $scope.carriers){

    $scope.getOwners( $scope.carriers[ i ].carrierId ).then(function(success){
        // add data to array
    });

}

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