Angular.js-在指令中设置ng-pattern时ngModel值未定义 [英] Angular.js - ngModel value is undefined when ng-pattern is set in directive

问题描述

可能已经回答了类似的问题(ng模式+ ng-change)，但是所有响应都无法解决此问题.

something similar may have been answered (ng-pattern + ng-change) but all responses were unable to fix this issue.

我有两个用于创建表单输入的混合指令，一个用于控制名称，标签，验证器等的父指令，以及一个用于设置模式和输入类型特定内容的子指令.

I have two imbricated directives for creating a form input, a parent directive to control name, label, validator etc. and a child directive to set pattern and input type specific stuff.

但是，当设置模式时，当ng-pattern返回false时，模型上的值将设置为undefined.

However, when setting a pattern, the value on my model is set to undefined when ng-pattern return false.

指令:

<input-wrapper ng-model="vm.customer.phone" name="phone" label="Phone number">
    <input-text type="tel"></input-text>
</input-wrapper>

生成的HTML:

<label for="phone">Phone number:</label>
<input type="text" name="phone" 
  ng-model="value"
  ng-model-options="{ updateOn: \'blur\' }"
  ng-change="onChange()"
  ng-pattern="/^[\+]?[(]?[0-9]{3}[)]?[-\s\.]?[0-9]{3}[-\s\.]?[0-9]{4,6}$/">

JS:

angular.module('components', [])
    .directive('inputWrapper', function() {
    return {
        restrict: 'E',
        require: 'ngModel',
        scope: true,
        link: function (scope, element, attrs, ngModel) {
          scope.name = attrs.name;
          scope.label = attrs.label;

          scope.onChange = function () {
            ngModel.$setViewValue(scope.value);
          };

          ngModel.$render = function () {
            scope.value = ngModel.$modelValue;
          };
        }
    }
    })
  .directive('inputText', function() {
    return {
        restrict: 'E',
        template: '<label for="{{name}}">{{label}}:</label><input type="text" name="{{name}}" ng-model="value" ng-model-options="{ updateOn: \'blur\' }" ng-change="onChange()" ng-pattern="pattern">',
        link: function (scope, element, attrs) {

          if (attrs.type === 'tel') {
            scope.pattern = /^[\+]?[(]?[0-9]{3}[)]?[-\s\.]?[0-9]{3}[-\s\.]?[0-9]{4,6}$/;
          }
        }
    }
    });

angular.module('app',['components'])
        .controller('ctrl',function($scope){
          var vm = this;

          vm.customer = {
            phone: '010203040506'
          };
        });

我在做什么错了?

用例的Codepen: https://codepen.io/Yosky/pen/yVrmvw

Codepen for use case: https://codepen.io/Yosky/pen/yVrmvw

推荐答案

如果验证器失败，默认情况下为angular，为ng-model分配了未定义的值，您可以按以下方式更改此设置:

By default in angular if a validator fail, undefined value assigned to ng-model, You can change this setting as follow :

 <div ng-model-options="{ allowInvalid: true}">

在此处阅读以获取详细文档

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