TypeError: undefined 不是 Angular Resource 中的函数
当尝试在 AngularJS 资源上轮询自定义方法 copies
时,我在 angular.js:10033
处收到以下错误:(方法 copy代码> 工作得很好.)
When trying to poll a custom method copies
on an AngularJS Resource I get the following error at angular.js:10033
: (The method copy
works just fine.)
TypeError: undefined is not a function
at https://code.angularjs.org/1.3.0-beta.8/angular-resource.min.js:9:347
at Array.forEach (native)
at q (https://code.angularjs.org/1.3.0-beta.8/angular.min.js:7:280)
at q.then.p.$resolved (https://code.angularjs.org/1.3.0-beta.8/angular-resource.min.js:9:329)
at J (https://code.angularjs.org/1.3.0-beta.8/angular.min.js:101:5)
at J (https://code.angularjs.org/1.3.0-beta.8/angular.min.js:101:5)
at https://code.angularjs.org/1.3.0-beta.8/angular.min.js:102:173
at g.$eval (https://code.angularjs.org/1.3.0-beta.8/angular.min.js:113:138)
at g.$digest (https://code.angularjs.org/1.3.0-beta.8/angular.min.js:110:215)
at g.$apply (https://code.angularjs.org/1.3.0-beta.8/angular.min.js:113:468)
Angular.js 10016 - 10035:
Angular.js 10016 - 10035:
function consoleLog(type) {
var console = $window.console || {},
logFn = console[type] || console.log || noop,
hasApply = false;
// Note: reading logFn.apply throws an error in IE11 in IE8 document mode.
// The reason behind this is that console.log has type "object" in IE8...
try {
hasApply = !!logFn.apply;
} catch (e) {}
if (hasApply) {
return function() {
var args = [];
forEach(arguments, function(arg) {
args.push(formatError(arg));
});
return logFn.apply(console, args); // This is line 10033 where the error gets thrown.
};
}
简化资源:
angular.module('vgm.content-pages')
.factory('ContentPage', function($resource, $http) {
return $resource('/api/content-page/:id', { id:'@page.id' }, {
copy: {
method: 'POST',
url: '/api/content-page/copy/:id'
},
copies: {
method: 'GET',
isArray: true,
url: '/api/content-page/copies/:id'
}
});
});
出现错误的简化指令:
angular.module('vgm.genericForms')
.directive('vgmFormCopyPicker', function() {
return {
restrict: 'E',
replace: true,
templateUrl: '/static/common/generic-forms/widgets/view-copy-picker.html',
scope: {
resource: '=',
},
controller: function($scope, $element) {
$scope.pages = [];
$scope.loadCopies = function() {
$scope.resource.$copies()
.then(function(response) {
$scope.pages = response.data;
});
};
}
};
});
只要我运行 loadCopies
方法,执行 $scope.resource.$copies()
行就会抛出上面的错误.
As soon as I run the loadCopies
method, executing the line $scope.resource.$copies()
throws the error above.
在 Chrome Inspector 中,我看到对 API 的调用实际上正在完成.但是解决承诺似乎会引发一些错误......
In the Chrome Inspector I see the call to my API is actually being done. But resolving the promise seems to throw some error...
我该如何解决这个错误?
How can I solve this error?
$scope.resource = ContentPage.get({id: $stateParams.id}).$promise
$scope.resource.$save() // Works
$scope.resource.$update() // Works
$scope.resource.$copy() // Works
$scope.resource.$copies() // Does not work!
Angular Resource 试图用一组项目覆盖我的初始资源.但是Resource的实例当然没有push
方法.
Angular Resource is trying to overwrite my initial resource with an array of items. But the instance of Resource does not have a method push
of course.
我找到了答案:
资源应该在其剩余生命周期中代表匹配的数据对象.如果你想获取新数据,你应该使用一个新对象.
A resource is supposed to represent the matched data object for the rest of its lifespan. If you want to fetch new data you should do so with a new object.
$scope.copies = ContentPage.copies()