D'accord. Au cas où quelqu'un aurait besoin d'une version fonctionnelle, c'est ici:
De doc:
$apply() is used to enter Angular execution context from JavaScript
(Keep in mind that in most places (controllers, services)
$apply has already been called for you by the directive which is handling the event.)
Cela m'a fait penser que nous n'avons pas besoin de: $scope.$apply(function(s) {
sinon il se plaindra de $digest
app.directive('uniqueName', function($http) {
var toId;
return {
require: 'ngModel',
link: function(scope, elem, attr, ctrl) {
//when the scope changes, check the name.
scope.$watch(attr.ngModel, function(value) {
// if there was a previous attempt, stop it.
if(toId) clearTimeout(toId);
// start a new attempt with a delay to keep it from
// getting too "chatty".
toId = setTimeout(function(){
// call to some API that returns { isValid: true } or { isValid: false }
$http.get('/rest/isUerExist/' + value).success(function(data) {
//set the validity of the field
if (data == "true") {
ctrl.$setValidity('uniqueName', false);
} else if (data == "false") {
ctrl.$setValidity('uniqueName', true);
}
}).error(function(data, status, headers, config) {
console.log("something wrong")
});
}, 200);
})
}
}
});
HTML:
<div ng-controller="UniqueFormController">
<form name="uniqueNameForm" novalidate ng-submit="submitForm()">
<label name="name"></label>
<input type="text" ng-model="name" name="name" unique-name> <!-- 'unique-name' because of the name-convention -->
<span ng-show="uniqueNameForm.name.$error.uniqueName">Name is not unique.</span>
<input type="submit">
</form>
</div>
Le contrôleur pourrait ressembler à ceci:
app.controller("UniqueFormController", function($scope) {
$scope.name = "Bob"
})