Question

我有指令验证用户输入的相同密码。但在内部指令中我想要setValidity = true两个输入元素

.directive('equalsTo', function() {
        return {
            require: 'ngModel',
            link: function(scope, elm, attrs, ctrl) {
                scope.$watch(attrs.ngModel, function() {
                    console.log(ctrl.$viewValue);
                    debugger;
                    if ($('#' + attrs.id).val() === $(attrs.equalsTo).val()) {
                        ctrl.$setValidity('equalsTo', true);
                        //here I want to apply $(attrs.equalsTo).setValidity('equalsTo', true);
                    } else {
                        ctrl.$setValidity('equalsTo', false);
                        //here I want to apply $(attrs.equalsTo).setValidity('equalsTo', false);
                    }
                });
            }
        };
    });

我想在setValidity

这样的元素上应用$(attrs.equalsTo)

<input id="newPassword" name="newPassword" ng-model="newPassword" type="password"
                                       class="form-control" placeholder="new password" ng-minlength="5" equals-to="#verifyNewPassword">
<input id="verifyNewPassword" name="verifyNewPassword" ng-model="verifyNewPassword" type="password"
                                       class="form-control" placeholder="verify new password" equals-to="#newPassword">

Answer 1

有一种更好的方法，传入依赖输入的ngModelController。所以html变成了

<input id="newPassword" name="newPassword" ng-model="newPassword" type="password"
                                       class="form-control" placeholder="new password" ng-minlength="5" equals-to="form.verifyNewPassword">
<input id="verifyNewPassword" name="verifyNewPassword" ng-model="verifyNewPassword" type="password"
                                       class="form-control" placeholder="verify new password" equals-to="form.newPassword">

这里我假设表格的名称为

<form name='form'>

将其替换为您的表单所具有的名称。

然后将指令定义更改为从其他ngModelController读取数据。

.directive('equalsTo', function() {
        return {
            require: 'ngModel',
            link: function(scope, elm, attrs, ctrl) {
                scope.$watch(attrs.ngModel, function() {
                    console.log(ctrl.$viewValue);
                    var otherController=scope.$eval(attrs.equalsTo);
                    if (ctrl.$viewValue===otherController.$viewValue) {
                        ctrl.$setValidity('equalsTo', true);
                        otherController.setValidity('equalsTo', true);
                    } else {
                        ctrl.$setValidity('equalsTo', false);
                        //here I want to apply
                        otherController.setValidity('equalsTo', false);
                    }
                });
            }
        };
    });

如何将setValidity应用于元素？

1 个答案: