Symfony2 twig code doesn't work in xml template as it works in html

Question

why twig code {% set code = code(_self) %} doesn't work in xml template.

<!-- src/Acme/DemoBundle/Resources/views/Demo/hello.xml.twig -->
<hello>
    <name>{{ name }}</name>
</hello>
{% set code = code(_self) %}

like it works in html template.

{% extends "AcmeDemoBundle::layout.html.twig" %}

{% block title "Hello " ~ name %}

{% block content %}
    <h1>Hello {{ name }}!</h1>
{% endblock %}

{% set code = code(_self) %}

{% set code = code(_self) %} is usefull in displaying Controller Code and Template Code used for the same route — Dipak Yadav
– Dipak Yadav, Commented Jan 8, 2014 at 11:55
And what do you mean by does not work ? You get an exception ? — COil
– COil, Commented Jan 8, 2014 at 12:18
@COil doesn't work means, its not showing the Controller Code and Template Code when used in xml template. No, i am not getting any exception. i just want to show those Codes as well when xml template is rendered. — Dipak Yadav
– Dipak Yadav, Commented Jan 8, 2014 at 12:24

COil · Accepted Answer · 2014-01-08 16:28:22Z

1

Well it's not a native Twig extension it's an additional extension provided by the DemoBundle of the Symfony2 standard edition (https://raw.github.com/symfony/symfony-standard/master/src/Acme/DemoBundle/Twig/Extension/DemoExtension.php). I've just tested and it works but this code() Twig extension is only intended to be used in an HTML template not an XML one. If you show the source of you XML template you will see the output of your controller but it will not show up as the generated XML becomes invalid. If you really want the output, you can use this:

<?xml version="1.0" encoding="UTF-8"?>
<code>{{ code(_self) | escape }}</code>

answered Jan 8, 2014 at 16:28

COil

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