angularjs changing factory object shared between c

2019-08-09 21:50发布

站内问答 / JavaScript
622 1 6

Is it possible to update the scope variable that points to a factory object, after the factory object is updated? If there are 2 angular controllers which share a factory object, if one of the controllers changes the factory object, it is not reflected in the scope variable of the other controller.

Ex: http://jsfiddle.net/zjm0mo10/ The result will be

"Factory foo.bar is 555" instead of

"Factory foo.bar is 666"

var app = angular.module('myApp', []);
app.factory('testFactory', function(){
return {
    foo: {bar:555},
}               
});

function HelloCtrl($scope, testFactory)
{
    $scope.bar = testFactory.foo.bar;
    $scope.clickme = function()
    {
        alert("testFactory.foo.bar "+testFactory.foo.bar);
        $scope.$apply();
    }
}

function GoodbyeCtrl($scope, testFactory)
{
    testFactory.foo.bar = 666;
}

<html>
<div ng-controller="HelloCtrl">
    <p>Factory foo.bar is {{bar}}</p>
    <button ng-click="clickme();">btn</button>
</div>
</html>

1条回答
趁早两清
2楼-- · 2019-08-09 22:27

Set your scope properties to testFactory.foo, eg

$scope.foo = testFactory.foo;

and

<p>Factory foo.bar is {{foo.bar}}</p>

That way, the scoped property will reference testFactory.foo which remains intact (not overwritten).

Also, you need to remove $scope.$apply() from clickme(). ng-click already triggers a digest cycle.

http://jsfiddle.net/zjm0mo10/1/

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