Angular Directive with dynamically generated input fields not able to display validation - angularjs

Question

After 3 days of scouring stackoverflow and other sites, I have found myself back at square one.
My task: I need to validate dynamically generated form fields.
The HTML:
<form name="myForm">
<form-field content="field" model="output[field.uniqueId]" ng-repeat="field in formFields"></form-field>
</form>
The controller:
var myApp = angular.module('myApp',[]);
function MyCtrl($scope) {
$scope.formFields = [
{
"fieldName": "Your Name",
"uniqueId": "your_name_0",
"fieldType": "text",
"isMandatory": true
},
{
"fieldName": "Description",
"uniqueId": "description_1",
"fieldType": "textarea",
"isMandatory": true,
}
];
$scope.output={};
}
The directive:
myApp.directive("formField",function($compile){
var templates = {
textTemplate:'<div class="form-group"><label for="{{content.uniqueId}}" >{{content.fieldName}}</label> <span ng-show="content.isMandatory" class="sub_reqText">*</span><span ng-show="form.content.fieldName.$invalid">Please check this field.</span><input type="text" ng-model="model" name="{{content.uniqueId}}" class="form-control" ng-required="content.isMandatory" id="{{content.uniqueId}}"/> </div><br>',
textareaTemplate:'<div class="form-group"><label for="{{content.uniqueId}}" >{{content.fieldName}}</label> <span ng-show="content.isMandatory" class="sub_reqText">*</span> <span ng-show="form.content.fieldName.$invalid">Please check this field.</span> <textarea ng-model="model" name="{{content.uniqueId}}" id="{{content.uniqueId}}" class="form-control" ng-required="content.isMandatory"></textarea> </div>'
};
var getTemplate = function(content, attrs){
var template = {};
template = templates[content.fieldType+"Template"];
if(typeof template != 'undefined' && template != null) {
return template;
}
else {
return '';
}
};
var linker = function(scope, element, attrs){
element.html(getTemplate(scope.content, attrs)).show();
$compile(element.contents())(scope);
}
return {
restrict:"E",
replace:true,
link:linker,
scope:{
content:'=',
model:'=?'
}
};
});
There is clearly some scope issue because I cannot access the form fields outside of the directive and I cannot access the form name inside the directive. I also know $scope.myForm.name property cannot be an angular binding expression but I am not sure how to rewrite it so that it works.
This is the jsfiddle: http://jsfiddle.net/scheedalla/57tt04ch/
Any guidance will be very useful, thank you!

Answer 1

While debugging the problem I found that, the name attribute is not properly compiled for form. It was showing {{content.uniqueId}} in name but actually it rendered properly on UI.
Eg.
For below html.
<input type="text" ng-model="model" name="{{content.uniqueId}}" class="form-control"
ng-required="content.isMandatory" id="{{content.uniqueId}}"/>
name rendered as name="your_name_0" but in form collection it was showing {{content.uniqueId}} with the interpolation directive.
Seems like name is not interpoluted properly.
Then found issue with AngularJS, "You can't set name attribute dynamically for form validation."
Note: Above mentioned issue has been fixed in Angular 1.3.(name
attributes interpolates properly)
& If you wanted to work them inside ng-repeat, then you should always use nested ng-form. Members inside ng-repeat will have their own form, and using that inner form you can handle your validation. Link For Reference
CODE CHANGE
var templates = {
textTemplate: '<ng-form name="form">'+
'<div class="form-group">'+
'<label for="{{content.uniqueId}}">{{content.fieldName}}</label> '+
'<span ng-show="content.isMandatory" class="sub_reqText">*</span>'+
'<span ng-show="form.input.$invalid">'+
'Please check this field.'+
'</span>'+
'<input type="text" ng-model="model1" name="input" class="form-control" ng-required="content.isMandatory" id="{{content.uniqueId}}" /> '+
'</div>'+
'</ng-form>'+
'<br>',
textareaTemplate: '<ng-form name="form">'+
'<div class="form-group">'+
'<label for="{{content.uniqueId}}">{{content.fieldName}}</label>'+
'<span ng-show="content.isMandatory" class="sub_reqText">*</span> '+
'<span ng-show="form.textarea.$invalid">Please check this field.</span>'+
'<textarea ng-model="model" name="textarea" id="{{content.uniqueId}}" class="form-control" ng-required="content.isMandatory"></textarea>'+
'</div>'+
'</ng-form>'
};
Only i changed the template html, basically added <ng-form></ng-form> for templates and handled the validation on basis it in inner form.
Here is your Working Fiddle
Hope this have cleared your understanding. Thanks.