6

我一直在尝试验证 Checkbox set 和 Radio set 并使用 ng-messages 指令显示错误消息，但它没有按预期工作。ng-messages 根本不显示错误消息。我正在使用 html 文件填充错误消息。在错误解决之前，我的表单中的提交按钮将被禁用。

在以下情况下，如何显示复选框集和单选集的错误消息：

  1. Radio set 中没有选择一个选项？

  2. Checkbox set 中至少有一个选项没有被选中？

  3. 缩放 Checkbox 集的检查，以便我们可以检查至少 2 个或更多被选中，等等？

这是我的表格：

<form name="userForm" ng-submit="submitForm()" novalidate>
    <div class="form-group" ng-class="{ 'has-error' : userForm.subscribe.$invalid && !userForm.subscribe.$touched }">
        <label class="checkbox-inline">
            <input type="checkbox" id="subscribe1" value="option1" name="subscribe[]" ng-model="user.subscribe" required> 1
        </label>
        <label class="checkbox-inline">
            <input type="checkbox" id="subscribe2" value="option2" name="subscribe[]" ng-model="user.subscribe" required> 2
        </label>
        <label class="checkbox-inline">
            <input type="checkbox" id="subscribe3" value="option3" name="subscribe[]" ng-model="user.subscribe" required> 3
        </label>

        <div class="help-block" ng-messages="userForm.subscribe.$error" ng-show="userForm.subscribe.$invalid">
            <div ng-messages-include="home/messages.html"></div>
        </div>
    </div>

    <div class="form-group" ng-class="{ 'has-error' : userForm.gender.$invalid && !userForm.gender.$touched }">
        <div class="radio">
            <label>
                <input type="radio" name="gender" value="male" ng-model="user.gender" />
                male
            </label>
        </div>
        <div class="radio">
            <label>
                <input type="radio" name="gender" value="female" ng-model="user.gender" />
                female
            </label>
        </div>

        <div class="help-block" ng-messages="userForm.gender.$error" ng-show="userForm.gender.$invalid">
            <div ng-messages-include="home/messages.html"></div>
        </div>
    </div>
    <button type="submit" class="btn btn-primary btn-success " ng-disabled="userForm.$invalid">Submit</button>
</form>

消息.html

<span ng-message="required">This field is required</span>
<span ng-message="minlength">This field is too short</span>
<span ng-message="maxlength">This field is too long</span>
<span ng-message="required">This field is required</span>
<span ng-message="email">This needs to be a valid email</span>

控制器.js

angular.module('myApp', ['ngRoute', 'ngAnimate', 'ngMessages']);

angular
    .module('myApp')
    .controller('HomeCtrl', HomeCtrl);

HomeCtrl.$inject = ['$scope'];

function HomeCtrl($scope) {
    $scope.userForm = {};
}

付款复选框集：

<div class="form-group" ng-class="{ 'has-error' : userForm.payment.$invalid && userForm.payment.$touched }">
    <label class="checkbox-inline">
        <input type="checkbox" id="payment1" value="Visa" name="payment" ng-blur="doTouched()" ng-model="user.payment[1]" ng-required="!someSelected(user.payment)"> Visa
    </label>
    <label class="checkbox-inline">
        <input type="checkbox" id="payment2" value="Mastercard" name="payment" ng-blur="doTouched()" ng-model="user.payment[2]" ng-required="!someSelected(user.payment)"> Mastercard
    </label>
    <label class="checkbox-inline">
        <input type="checkbox" id="payment3" value="Cash" name="payment" ng-blur="doTouched()" ng-model="user.payment[3]" ng-required="!someSelected(user.payment)"> Cash
    </label>

    <div class="help-block" ng-messages="userForm.payment.$error" ng-show="userForm.payment.$invalid && userForm.payment.$touched">
        <div ng-messages-include="home/messages.html"></div>
    </div>
</div>
4

2 回答 2

6

检查此示例：

http://plnkr.co/edit/2w0lIf?p=preview

复选框列表将ng-required指令与someSelected函数（在控制器中定义）一起使用，该函数检查是否至少选择了一项：

<div class="form-group" ng-class="{ 'has-error' : userForm.subscribe.$invalid && userForm.subscribe.$touched }">
    <label class="checkbox-inline">
        <input type="checkbox" id="subscribe1" value="option1" name="subscribe" ng-blur="doTouched()" ng-model="user.subscribe[1]" ng-required="!someSelected(user.subscribe)"> 1
    </label>
    <label class="checkbox-inline">
        <input type="checkbox" id="subscribe2" value="option2" name="subscribe" ng-blur="doTouched()" ng-model="user.subscribe[2]" ng-required="!someSelected(user.subscribe)"> 2
    </label>
    <label class="checkbox-inline">
        <input type="checkbox" id="subscribe3" value="option3" name="subscribe" ng-blur="doTouched()" ng-model="user.subscribe[3]" ng-required="!someSelected(user.subscribe)"> 3
    </label>

    <div class="help-block" ng-messages="userForm.subscribe.$error" ng-show="userForm.subscribe.$invalid && userForm.subscribe.$touched">
        <div ng-messages-include="messages.html"></div>
    </div>
</div>

选项按钮组更容易使用ng-required带有条件的指令!user.gender：

<div class="form-group" ng-class="{ 'has-error' : userForm.gender.$invalid && userForm.gender.$touched }">
    <div class="radio">
        <label>
            <input type="radio" name="gender" value="male" ng-model="user.gender" ng-required="!user.gender"/>
            male
        </label>
    </div>
    <div class="radio">
        <label>
            <input type="radio" name="gender" value="female" ng-model="user.gender" ng-required="!user.gender"/>
            female
        </label>
    </div>

    <div class="help-block" ng-messages="userForm.gender.$error" ng-if="userForm.gender.$touched">
        <div ng-messages-include="messages.html"></div>
    </div>
</div>

该ngBlur指令解决了复选框列表只有在列表中的所有项目都模糊时才会“触摸”的问题，调用 doTouched() 函数：

  $scope.doTouched = function() {
     $scope.userForm.subscribe.$setTouched();
  }

PS注意正确的名称：userForm是HTML名称<form>，user是绑定表单的模型名称。

于 2016-01-21T09:54:18.060 回答
0

这是我创建的一个适合我们目的的示例。
我们的应用程序将在每个页面上创建多个复选框问题，并且 $touched 似乎不适用于所有具有相同名称属性的输入复选框字段。
此外，我为复选框看到的自定义角度插件/指令也很好（它们只是绑定到 1 个数组模型），但似乎不支持“必需”。

在这里，我为每个问题设置了一个 custom_touched 事件，我通过 ng-click 设置了该事件：

http://jsfiddle.net/armyofda12mnkeys/9gLndp5y/7/

<li ng-repeat="choice in currentquestion.choices">
                  <input
                    type="checkbox"
                    ng-model="choice.selected"
                    ng-required="!somethingSelectedInTheGroup(currentquestion.required, currentquestion.choices)"
                    ng-click="currentquestion.custom_touched = true;"
                    name="{{currentquestion.question_code}}"
                    id="{{currentquestion.question_code}}_{{choice.option_value}}"                                      
                    value="{{choice.option_value}}"
                  /> {{choice.orig_option_txt}}

              </li> 


$scope.somethingSelectedInTheGroup = function (is_required, choices) {
    if(is_required) {
      for(var i = 0; i < choices.length; i++) {
        var choice = choices [i];
        if(choice.selected) {
            return true;
        }
      }

      return false;
    } else {
        return false;
    }
  }

注意：我最初使用过<div ng-if="questionform.$dirty && questionform[currentquestion2.question_code].$invalid"> ，但这不适用于每个表单/页面的多个复选框问题。

于 2016-03-17T04:17:41.103 回答