I'm trying to write an autocomplete directive that fetches data from the server using an $http request (without using any external plugins or scripts). Currently it works only with static data. Now, I know that I need to insert my $http request into the source: of the directive, but I can't find any good documentation on the subject.
$http.post($scope.url, { "command": "list category() names"}).
success(function(data, status) {
$scope.status = status;
$scope.names = data;
})
.
error(function(data, status) {
$scope.data = data || "Request failed";
$scope.status = status;
});
app.directive('autoComplete', function($timeout) {
return function(scope, iElement, iAttrs) {
iElement.autocomplete({
source: scope[iAttrs.uiItems],
select: function() {
$timeout(function() {
iElement.trigger('input');
}, 0);
}
});
};
});
<input auto-complete ui-items="names" ng-init="manualcat='no category entered'" ng-model="manualcat">
So, how do I piece this all together correctly the Angular way?
This question is related to
angularjs
autocomplete
directive
angular-http
I made an autocomplete directive and uploaded it to GitHub. It should also be able to handle data from an HTTP-Request.
Here's the demo: http://justgoscha.github.io/allmighty-autocomplete/ And here the documentation and repository: https://github.com/JustGoscha/allmighty-autocomplete
So basically you have to return a promise when you want to get data from an HTTP request, that gets resolved when the data is loaded. Therefore you have to inject the $qservice/directive/controller where you issue your HTTP Request.
Example:
function getMyHttpData(){
var deferred = $q.defer();
$http.jsonp(request).success(function(data){
// the promise gets resolved with the data from HTTP
deferred.resolve(data);
});
// return the promise
return deferred.promise;
}
I hope this helps.
Use angular-ui-bootstrap's typehead.
It had great support for $http and promises. Also, it doesn't include any JQuery at all, pure AngularJS.
(I always prefer using existing libraries and if they are missing something to open an issue or pull request, much better then creating your own again)
I found this link helpful
$scope.loadSkillTags = function (query) {
var data = {qData: query};
return SkillService.querySkills(data).then(function(response) {
return response.data;
});
};
You need to write a controller with ng-change function in scope. In ng-change callback you do a call to server and update completions. Here is a stub (without $http as this is a plunk):
HTML
<!doctype html>
<html ng-app="plunker">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.5/angular.js"></script>
<script src="http://angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.4.0.js"></script>
<script src="example.js"></script>
<link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.min.css" rel="stylesheet">
</head>
<body>
<div class='container-fluid' ng-controller="TypeaheadCtrl">
<pre>Model: {{selected| json}}</pre>
<pre>{{states}}</pre>
<input type="text" ng-change="onedit()" ng-model="selected" typeahead="state for state in states | filter:$viewValue">
</div>
</body>
</html>
JS
angular.module('plunker', ['ui.bootstrap']);
function TypeaheadCtrl($scope) {
$scope.selected = undefined;
$scope.states = [];
$scope.onedit = function(){
$scope.states = [];
for(var i = 0; i < Math.floor((Math.random()*10)+1); i++){
var value = "";
for(var j = 0; j < i; j++){
value += j;
}
$scope.states.push(value);
}
}
}
the easiest way to do that in angular or angularjs without external modules or directives is using list and datalist HTML5. You just get a json and use ng-repeat for feeding the options in datalist. The json you can fetch it from ajax.
in this example:
then you can add filters and orderby in the ng-reapet
!! list and datalist id must have the same name !!
<input type="text" list="autocompleList" ng-model="ctrl.query" placeholder={{ctrl.msg}}>
<datalist id="autocompleList">
<option ng-repeat="Ids in ctrl.dataList value={{Ids}} >
</datalist>
UPDATE : is native HTML5 but be carreful with the type browser and version. check it out : https://caniuse.com/#search=datalist.
Source: Stackoverflow.com