I have a controller that passes an array to a twig template, which I want to use in a script written on that page. How would I go about doing that?
I've tried this in my .twig template:
<script>
$(document).ready(function(){
var test = {{ testArray }};
});
</script>
but that only works if it's a string.
You might have to json_encode the array, try this:
<script>
$(document).ready(function(){
var test = {{ testArray|json_encode(constant('JSON_HEX_TAG'))|raw }};
});
</script>
var test = '{{ testArray|json_encode|raw }}';
JSON_HEX_TAG flag to json_encode: json_encode(constant('JSON_HEX_TAG')). Otherwise, you can get broken HTML (try "<!--<script>").First, send the data json encoded from controller and
then in javascript,
var context= JSON.parse('{{ YourArrayFromController|raw}}');
{"message": "Can't process"}I do it this way:
Return of the controller test.data then
$test = array('data' => array('one','two'))
Twig:
<div id="test" data-is-test="{{ test.data|json_encode }}"></div>
Js:
$(document).ready(function() {
var test = $('#test').data("isTest");
console.log(test);
});
Output:
["one", "two"]
json_encode works well, in combination with the raw filter.
<script>
$(document).ready(function(){
let test = {{ testArray | json_encode(constant('JSON_HEX_TAG')) | raw }};
});
</script>
Don't forget the JSON_HEX_TAG flag.
Otherwise, you can get broken HTML. A string containing <!--<script> is a good way to test that.
In My Controller I Install SerializerBundle
$serializer = $this->get('serializer');
$countries = $this->getDoctrine()->getRepository("QSCORBundle:CountryMaps")->findAll();
$jsonCountries = $serializer->serialize($countries, 'json');
return $this->render('QSCORBundle:Default:index.html.twig',array("countries"=> $jsonCountries));
And In My File Twig
<script type="text/javascript" >
var obj = {{ countries|json_encode|raw }};
var myObject = eval('(' + obj + ')');
console.log(myObject[0]['capital_latitude'] + " " + myObject[0]['capital_longitude']);//for the First Element
</script>
