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angular.js - angular中factory里可以操作controller里的数据吗
PHP中文网
PHP中文网 2017-05-15 17:06:12
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我想在factory中获取并改变顶级控制器里的变量 可以办到吗

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習慣沉默
習慣沉默2017-05-15 17:08:12 3 floor

Generally when I am working on a project, services serve two purposes:
First, they are used as public methods, such as submission methods, certain services in pop-up boxes, and other similar general services.
Second, it is used when transferring parameters or objects between certain controllers according to special needs. This situation is rare and is generally not recommended~

When you talk about changing the variables of the top-level controller in the service, I feel that you provided a fragment of your idea, rather than the fundamental demand point~ What is your demand?

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某草草
某草草2017-05-15 17:08:12 2 floor

It cannot be operated directly, there are two ways:
1. Change the value through the callback function
2. Change the value by passing the object parameters (array, object) 

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body ng-app="myApp" >
<p ng-controller="myCtrl">
{{ value.name }} {{ value.value }}
</p>
<hr />
<p ng-controller="myCtrl2">
{{ value.name }} {{ value.value }}
</p>
    
<script>
var app = angular.module('myApp', []);

app.service('myService', function() {
    this.valueSet = function(value){
        this.valueFunction(value);
    };
    this.valueCallback = function(callback){
        var newValue = {
            name : "hello",
            value : "world"
        };
        this.valueFunction(newValue);
        callback(newValue);
    };
    this.valueFunction = function(value){
        value.name += ",";
        value.value += "!";
        return value;
    };
});
app.controller('myCtrl', ['$scope', 'myService', function($scope, myService) {
    $scope.value = {
        name : "你好",
        value : "世界"
    };
    //回调方式改版 $scope 的值
    myService.valueCallback(function(value){
        $scope.value = value;
    });
}]);
app.controller('myCtrl2', ['$scope', 'myService', function($scope, myService) {
    $scope.value = {
        name : "你好",
        value : "世界"
    };
    myService.valueSet($scope.value);
}]);
</script>

</body>
</html>
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漂亮男人
漂亮男人2017-05-15 17:08:12 1 floor

Yes, it is possible, but it is not recommended.
Encapsulate the controller data into an object, and then pass it as a parameter to the factory method.

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