Preserving content in AngularJS select options post selection and reverting to empty state

Here is some code I am currently working with:

<select type="text" id="{{for}}" name="{{for}}" ng-model="model.value" class="form-control input-sm" placeholder="{{placeholder}}" ng-options="c.name as c.name for c in countries track by c.code">
  <option value="">— Select —</option>
</select>

The countries array is fetched from a dictionary service and structured like this:

$http.get('services/dictionary/countries').then(function(response) {
   _.chain(response.data).map(function(country) {
     return {
       code: country.id,
       digraph: country.digraph,
       trigraph: country.trigraph,
       name: country.name
     };
   }).sortBy('name').each(function(country) {
      dictionary.countries.push(country);
   });

   deferred.resolve(dictionary.countries);
}, function(error) {
    $log.error('dictionary:', error);
});

We are using the list of countries to populate a select dropdown but facing two problems. Firstly, after selecting an option and refreshing the page, the selected object does not appear in the dropdown. Secondly, we are unable to revert to a null choice when needed.

I have tried different iterations based on the ng-options setup, but haven't been successful. Any assistance would be greatly appreciated. Thank you!

Answer №1

Issue 1: Have you assigned the ngModel value to the stored value upon refreshing? This is necessary for it to be selected during the refresh.

Issue 2: Initialize the model as an empty object in your controller: model = {};

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