我正在尝试在Angular指令中注入ngModel
,我收到此错误:
Error: [$injector:unpr] Unknown provider: ngModelProvider <- ngModel
http://errors.angularjs.org/1.2.18/$injector/unpr?p0=ngModelProvider%20%3C-%20ngModel
at http://localhost:2013/Scripts/angular.js:78:12
at http://localhost:2013/Scripts/angular.js:3741:19
at Object.getService [as get] (http://localhost:2013/Scripts/angular.js:3869:39)
at http://localhost:2013/Scripts/angular.js:3746:45
at getService (http://localhost:2013/Scripts/angular.js:3869:39)
at invoke (http://localhost:2013/Scripts/angular.js:3896:13)
at Object.instantiate (http://localhost:2013/Scripts/angular.js:3917:23)
at $get (http://localhost:2013/Scripts/angular.js:7201:28)
at http://localhost:2013/Scripts/angular.js:6592:34
at forEach (http://localhost:2013/Scripts/angular.js:327:20) angular.js:9937
(anonymous function) angular.js:9937
$get angular.js:7283
$get.Scope.$digest angular.js:12414
$get.Scope.$apply angular.js:12660
done angular.js:8272
completeRequest angular.js:8477
xhr.onreadystatechange
这是我的指示:
module.directive("myDatePicker", function () {
return {
restrict: "A",
template: '<p class="input-group" title="{{title}}">' +
'<input type="text" class="form-control" data-datepicker-popup="{{dateFormat}}" ng-model="selectedDate" data-is-open="isOpen" data-datepicker-options="dateOptions" ng-required="true" data-close-text="{{closeText}}" />' +
'<span class="input-group-btn">' +
'<button type="button" class="btn btn-default" ng-click="open($event)"><i class="glyphicon glyphicon-calendar"></i></button>' +
'</span>' +
'</p>',
replace: true,
require: '?ngModel',
//priority: 0,
scope: {
title: "@",
selectedDate: "=ngModel",
onChange: "&",
dateFormat: "="
},
compile: function (tElement, tAttrs, transclude) {
// Correct ngModel for isolate scope
if (tAttrs.ngModel) {
tAttrs.$set('selectedDate', tAttrs.ngModel, false);
tAttrs.$set('ngModel', 'selectedDate', false);
}
return {
post: function (scope, iElement, iAttrs, controller) {
// Render
return controller.$render = function () {
if (!controller.$viewValue) {
return;
}
angular.extend(scope, controller.$viewValue);
};
}
};
},
priority: 100,
link: function (scope, elem, attr) {
},
controller: function ($scope, global, ngModel) {
$scope.isOpen = false;
$scope.closeText = 'Close';
$scope.dateOptions = {};
$scope.open = function ($event) {
$event.preventDefault();
$event.stopPropagation();
$scope.isOpen = true;
};
$scope.$watch(function () {
return $scope.selectedDate;
},
function (newValue, oldValue) {
ngModel.$setValidity('required', newValue == true);
$scope.onChange({ newDate: newValue, oldDate: oldValue });
}, true);
}
};
});
这是我的HTML:
<input data-my-date-picker
id="EventDatePicker" data-name="EventDatePicker"
data-date-format="dateFormat"
ng-model="EventDetails.Date"
ng-required="true"
data-title="Date" />
为什么无法解决? 我试过这样做:
module.directive("myDatePicker", ['ngModel', function () {
......但它没有帮助。
我也尝试删除priority
,但它也没有帮助。
是否与指令加载的顺序有关?
我在这里缺少什么?
有什么想法吗?
根据sma的建议,最后我做到了这一点:
require: ['^ngModel'/*, '^isDate'*/],
scope: {
title: "@?",
name: "@?"
},
link: function (scope, elem, attr, ngModel/*, isDate*/) {
...
这种似乎有用。
我不知道为什么我不能在控制器中注入它。 :(
一定有办法,但我还没找到......
但由于一些奇怪的原因,上面的isDate
之类的指令仍未被注入(尽管它们是在当前指令之前定义的)。
这令人困惑。
答案 0 :(得分:5)
您的控制器功能中的参数错误。控制器功能接受:
controller : function ($scope, $element) {
...
}
如果您尝试将ngModel作为依赖项注入,请改用链接函数:
link : function(scope, element, attrs, ngModelController) {
...
}