Dynamic models using ng-if - AngularJS form -


here code:

as can see, displayed if q.answer == 'fail' - value of select box further in page.

if "fail" has been selected, user can select defect type saved question.failure.type.

my question is, if user selects "fail" , selects defect type - , changes "fail" else. question.failure.type still retained, though ng-if false now. how can make question.failure.type no longer in model if ng-if false?

<div class="panel panel-danger" ng-if="q.answer == 'fail'">     <div class="panel-heading">         <h3 class="panel-title">comments</h3>     </div>     <div class="panel-body">         <form novalidate name="failureform">             <div class="row">                 <div class="col-xs-12">                     <select name='defect' class='form-control' ng-model='question.failure.type' ng-options='item item in defecttypes' required>                         <option value=''>select defect type...</option>                     </select>                      ...

edit: added new code requested

<div ng-repeat="q in questions" ng-show="standard.servicetype">     <div class="panel panel-info">         <div class="panel-heading">             <h3 class="panel-title">{{ $index + 1 }}. <span ng-bind="q.questiontext"></span></h3>         </div>         <div class="panel-body">             <answer-field question="q"></answer-field>         </div>     </div>     ... code in example above appears

assuming value of q.answer assigned in <input> element in html, can clear value of question.failure.type based on conditional expression using ng-change.

for example:

<input ng-bind='q.answer'         ng-change='question.failure.type =                  (q.answer == 'fail' ? question.failure.type : undefined)' >

this trivial example, setting question.failure.type either value has or undefined, depending on if q.answer == 'fail' or not.


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