angularjs 通过指令和 ng-repeat 传递参数 [英] angularjs passing parameters through directive and ng-repeat

问题描述

我们再试一次:

这是一个工作的plunker:http://plnkr.co/edit/RTrdsLY8ONoeDLPYSFJi?p=preview

但是这些字段是相互连接的.

当您查看 DOM 时:

<input class="form-control ng-pristine ng-valid-maxlength ng-valid-minlength ng-valid ng-valid-required" type="text" name="fieldName" ng-model="fieldName" ng-minlength="3" ng-maxlength="20" required="">^^^^^^^^^^^

当然！都有 name="fieldName"！

但是为什么！?应该是名字、姓氏和年龄！

是的，formField.html 模板有错误:

 <input class="form-control" type="{{fieldType}}" name="fieldName" ng-model="fieldName" ng-minlength=3 ng-maxlength=20 required/>^^^^^^^^^^^^

所以让我们把它改成{{fieldName}}.因此，所有出现的 form.fieldName... 都变成了 form.{{fieldName}}.

嗯，红框去哪儿了?

让我们看看 DOM -

<input class="form-control ng-pristine ng-valid-maxlength ng-valid-minlength ng-valid ng-valid-required" type="text" name="first_name" ng-model="fieldName" ng-minlength="3" ng-maxlength="20" required="">

name 没问题，但现在 has-error 不起作用...

解决方案

更新:您可以使用这样的函数从模型中获取您的参数.(根据您的数据结构)

另一个分叉的plunker:http://plnkr.co/edit/mdKBoEffoUo2ilH7Jd3L?p=preview

$scope.getModels = function(items) {无功参数 = {};如果(angular.isArray(项目)){for (var i = 0; i < items.length; i++) {var item = items[i];if(angular.isArray(item.fields)) {for (var j = 0; j 

<小时>

由于尚未实现动态输入名称(此处为相关 PR)，我插入了一个嵌套的 ng-form 用于验证.正因为如此，我认为您必须使用 ngModel 自己管理表单提交.

在这里检查分叉的例子:http://plnkr.co/edit/8cP5YMKUGu6LfBCsRxAZ?p=预览

模板:

<div class="form-group" ng-form="form" ng-class="{true: 'has-error', false: 'has-success'}[form.fieldName.$无效]"><label class="control-label col-sm-2" for="fieldName">{{fieldLabel}}</label><div class="col-sm-6"><input class="form-control" type="{{fieldType}}" placeholder="输入有效名称" name="fieldName" ng-model="fieldModel" ng-minlength=3 ng-maxlength=20 required/><span class="help-block"><span ng-show="form.fieldName.$error.required">必填字段</span><span ng-show="form.fieldName.$error.minlength">字符太少 - min 是 (6)</span><span ng-show="form.fieldName.$error.maxlength">字符过多 - 最大为 (20)</span>&nbsp;</span>

HTML:

</表单域>

JS:

KPNDirectives.directive("formField", function () {返回 {限制:'E'，范围: {字段模型:'=ngModel'，字段类型:'='，字段标签:'='，字段名称:'='},templateUrl: 'formField.html'};});

Let's try again:

here's a working plunker: http://plnkr.co/edit/RTrdsLY8ONoeDLPYSFJi?p=preview

But the fields are connected each other.

when you look at DOM:

<input class="form-control ng-pristine ng-valid-maxlength ng-valid-minlength ng-valid ng-valid-required" type="text" name="fieldName" ng-model="fieldName" ng-minlength="3" ng-maxlength="20" required="">
                                                                                                                         ^^^^^^^^^^

of course! All have name="fieldName"!

But why!? it should be first_name, last_name and age!

Yes, there's a mistake in formField.html template:

 <input class="form-control" type="{{fieldType}}" name="fieldName" ng-model="fieldName" ng-minlength=3 ng-maxlength=20 required/>
                                                       ^^^^^^^^^^^

So let's change it into {{fieldName}}. And consequently all occurences of form.fieldName... into form.{{fieldName}}.

Well, where's gone red frame?

Let's look at DOM -

<input class="form-control ng-pristine ng-valid-maxlength ng-valid-minlength ng-valid ng-valid-required" type="text" name="first_name" ng-model="fieldName" ng-minlength="3" ng-maxlength="20" required="">

name is ok, but now has-error doesn't work...

解决方案

Update: You can use a function like this to fetch your params from model. (accroding to your data structure)

Another forked plunker: http://plnkr.co/edit/mdKBoEffoUo2ilH7Jd3L?p=preview

$scope.getModels = function(items) {
  var params = {};

  if (angular.isArray(items)) {
    for (var i = 0; i < items.length; i++) {
      var item = items[i];

      if(angular.isArray(item.fields)) {
        for (var j = 0; j < item.fields.length; j++) {
          var field = item.fields[j];
          params[field.id] = field.model;
        }
      }
    }
  }

  alert(JSON.stringify(params, '', 4));
};

---

Since dynamic input name hasn't been implemented yet (Relatived PR here), I inserted a nested ng-form for validation. And because that, I think you have to manage form submittion yourself by using ngModel.

Check the forked exmaple here: http://plnkr.co/edit/8cP5YMKUGu6LfBCsRxAZ?p=preview

Template:

<div class="form-group" ng-form="form" ng-class="{true: 'has-error', false: 'has-success'}[form.fieldName.$invalid]">
    <label class="control-label col-sm-2" for="fieldName">{{fieldLabel}}</label>
    <div class="col-sm-6">
      <input class="form-control" type="{{fieldType}}" placeholder="enter valid name" name="fieldName" ng-model="fieldModel" ng-minlength=3 ng-maxlength=20 required/>
      <span class="help-block">
        <span ng-show="form.fieldName.$error.required">Required field</span>
        <span ng-show="form.fieldName.$error.minlength">Too few chars - min is (6)</span>
        <span ng-show="form.fieldName.$error.maxlength">Too much chars - max is (20)</span>
        &nbsp;
      </span>
    </div>
</div>

HTML:

<form-field ng-repeat="field in tabItem.fields" ng-model='field.model'
    field-type="field.type" field-name='field.id' field-label='field.label'>
</form-field>

JS:

KPNDirectives.directive("formField", function () {
    return {
      restrict: 'E',
      scope: {
        fieldModel: '=ngModel',
        fieldType: '=',
        fieldLabel: '=',
        fieldName: '='
      },
      templateUrl: 'formField.html'
    };   
});

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