我正在为我的应用中的用户注册页面添加验证,并且我正在尝试使用ngMessages
和内置angularjs验证。
我遇到了密码匹配和一般模式的奇怪行为。
以下是密码匹配的代码:
<span>Password (6 to 16 character)</span>
<span class="item item-input">
<input type="password"
ng-model="userRegistration.password"
placeholder="password"
name="password"
ng-minlength="6"
ng-maxlength="16"
required
ng-class="{'invalid-input': userRegistrationForm.password.$touched && userRegistrationForm.password.$invalid }">
</span>
<!-- Form validation messages -->
<div role="alert" class="error-message" ng-messages="userRegistrationForm.password.$error" ng-show="userRegistrationForm.password.$touched">
<p ng-message="required">This field is required</p>
<p ng-message="minlength">This field is too short</p>
<p ng-message="maxlength">This field is too long</p>
</div>
<span>Confirm Password</span>
<span class="item item-input">
<input type="password"
placeholder="confirm password"
ng-model="userRegistration.passwordConfirmation"
name="confpass"
ng-minlength="6"
ng-maxlength="16"
ng-pattern="/^{{userRegistration.password}}$/"
required
ng-class="{'invalid-input': userRegistrationForm.confpass.$touched && userRegistrationForm.confpass.$invalid }">
</span>
<!-- Form validation messages -->
<div role="alert" class="error-message" ng-messages="userRegistrationForm.confpass.$error" ng-show="userRegistrationForm.confpass.$touched">
<p ng-message="required">This field is required</p>
<p ng-message="pattern">Password not matching!</p>
</div>
问题在于,即使密码匹配,错误仍然存在,表明它不匹配,我无法弄清楚为什么会这样做。
模式不符合预期的另一个例子可以在下面的代码中找到:
<span>System ID</span>
<span class="item item-input">
<input type="text"
ng-model="userRegistration.id"
placeholder="system id"
name="systemID"
ng-minlength="6"
ng-maxlength="6"
pattern="/:/"
required
ng-class="{'invalid-input': userRegistrationForm.systemID.$touched && userRegistrationForm.systemID.$invalid }">
</span>
<!-- Form validation messages -->
<div role="alert" class="error-message" ng-messages="userRegistrationForm.systemID.$error" ng-show="userRegistrationForm.systemID.$touched">
<p ng-message="required">This field is required</p>
<p ng-message="pattern">Colons not required!</p>
<p ng-message="minlength">This field is too short</p>
<p ng-message="maxlength">This field is too long</p>
</div>
我需要检查输入中是否添加了冒号,如果是,则显示和错误。如上所述,问题是即使没有冒号,仍然会显示消息。
我错过了什么?我显然使用ng-pattern
和ng-messages
错误,但无法理解原因。
任何帮助都会非常感激。
Codepen,这里有两个示例:http://codepen.io/NickHG/pen/NNZYwK?editors=1010
由于
答案 0 :(得分:2)
我使用了一种不同的方法来使用ng-messages。我做了一个这样的自定义指令:
.directive('compareTo', function() {
return {
require: "ngModel",
scope: {
otherModelValue: "=compareTo"
},
link: function(scope, element, attributes, ngModel) {
ngModel.$validators.compareTo = function(modelValue) {
return modelValue == scope.otherModelValue;
};
scope.$watch("otherModelValue", function() {
ngModel.$validate();
});
}
};
});
并像这样显示错误:
<div role="alert" class="error-message"
ng-messages="userRegistrationForm.conf.$error"
ng-show="userRegistrationForm.conf.$touched">
<p ng-message="required">This field is required</p>
<p ng-message="compareTo">Password not matching!</p>
</div>
有关详细信息和演示,请参阅以下链接。
Codepen演示:http://codepen.io/thepio/pen/rLNBWr?editors=1010
根据评论编辑:
以下是使用ng-pattern(无需指令)的示例:http://codepen.io/thepio/pen/zBYOPy?editors=1010
我将ng-change
函数设置为第一个输入,并在控制器更改时设置正则表达式。然后我将其绑定到确认输入的ng-pattern
并相应地显示ng-messages
。