Removing an element from an object using ng-model when its value is empty is a standard practice

Utilizing the $resource service to access and modify resources on my API has been a challenge.

An issue arises when the ng-model-bound object's value is set to empty - the bound element is removed from the object. This results in the missing element during resource saving and passing of data.

angular.module('myApp', [])

.controller('myCtrl', function($scope, $resource) {
   var Person = $resource('persons/:id.json', {id: @id});

   $scope.data = Person.get({id:123});
});

For instance, setting data.name to '' in the given template:

<div ng-controller="myCtrl">
   <input type="text" ng-model="data.name" />

   <input type="button" ng-click="data.$save()" value="Save" />
</div>

The presence of the element in the passed data during saving is crucial as it influences whether the API will update the attribute value to empty or retain its current value.

Answer №1

If anyone comes across a similar issue, the root cause was not related to the ng-model attribute but rather with the validation I included in the input field.

<input type="text" ng-model="data.name" ng-required="true" />

Although it wasn't specifically shown in the previous question, the problem stemmed from the ng-required validation.

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