Here is my code:
As you can see, this will only get displayed if q.answer == 'Fail' - that is the value of a select box further up in the page.
If "Fail" has been selected, then the user can select a defect type which will be saved into question.failure.type.
My question is, if a user selects "Fail" and then selects a defect type - and then changes "Fail" to something else. Then question.failure.type is still retained, even though the ng-if is false now. How can I make it so that question.failure.type is no longer in the model if the ng-if is 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 for item in defectTypes' required>
<option value=''>Select a defect type...</option>
</select>
...
Edit: added new code as 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>
... then the code in the example above appears
Assuming that the value of q.answer is assigned in an <input> element in your HTML, you can clear the value of question.failure.type based on any 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 is only a trivial example, but it is essentially setting the question.failure.type to either the value it already has or undefined, depending on if q.answer == 'Fail' or not.
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