How to call php function from twig _Symfony3

Question

I want to call the function of from the controller in twig.How can i do it

It is my controller

class ArticleController extends Controller
{
   /**
    * @Route("Article")
    */
   public function indexAction()
   {
       ....................... 
       return $this->render('MainBundle:Article:index.html.twig', array(
               'lastArticleCategoryData' => $lastArticleCategoryData
            ));
   }
   public function datajalali()
   {
       $articles = "sss";
       $v = new Verta(); //1396-02-02 15:32:08
       $v = Verta::now();

       return $v;
   }
}

My twig

{% if Article.datajalali %}
   {{ datajalali }}
{% endif %}

Andrei · Accepted Answer · 2018-02-07 09:29:26Z

4

You, normally, can't call PHP functions in twig directly.

You can however, write a Twig extension

http://symfony.com/doc/current/templating/twig_extension.html

In your case it should look something like this

// src/Twig/AppExtension.php
namespace App\Twig;

use Twig\Extension\AbstractExtension;
use Twig\TwigFilter;

class AppExtension extends AbstractExtension
{
    public function datajalali()
    {
        $articles = "sss";
        $v = new Verta(); //1396-02-02 15:32:08
        $v = Verta::now();

        return $v;
    }

}

With that said, I suppose you could do something like

{{ render(controller(
    'AppBundle\\Controller\\ArticleController ::datajalali'
)) }}

But that seems like bad practice to me, to be honest. I'm not entirely sure it will work properly either.

edited Feb 7, 2018 at 9:29

answered Feb 7, 2018 at 9:19

Andrei

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3 Comments

Alan T. Over a year ago

To be complete, he could also use closures as described in this post I wrote a while ago. That being said, I agree, a Twig extension should be the first option to be considered.

pedram shabani Over a year ago

Thank you.i have error::-> An exception has been thrown during the rendering of a template ("Class "MainBundle\Controller\ArticleController " does not exist.").

Andrei Over a year ago

Well, there you go, I told you it may not work. I haven't tested it. Go for the extension, seems a lot better.

Snegirekk · Accepted Answer · 2018-02-07 17:30:24Z

1

Just try to send your datajalali to template, like this:

    return $this->render('MainBundle:Article:index.html.twig', array(
           'lastArticleCategoryData' => $lastArticleCategoryData,
           'datajalali' => $this->datajalali(),
        ));

See How to Embed Controllers in a Template

UPDATE

Andrew and Jonathan Jalouzot told you about twig extensions, but this way is different for symfony3 and symfony4. In your case it looks like this:

class AppExtension extends \Twig_Extension
{
    public function getFunctions()
    {
        return array(new \Twig_Function('datajalali', array($this, 'datajalali')));
    }

    public function datajalali()
    {
        // Your logic here
    }
}

And use it in your template:

{{ datajalali() }}

See How to Write a custom Twig Extension

edited Feb 7, 2018 at 17:30

answered Feb 7, 2018 at 9:24

Snegirekk

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7 Comments

pedram shabani Over a year ago

Hey.thank you for answer.your code work fine but i want to send data to function.i up vote your answer

Snegirekk Over a year ago

What's wrong with sending data to function in this case?

pedram shabani Over a year ago

i can send parameter in function with this method..for example::: {% datajalali($date) %}

Snegirekk Over a year ago

U can do it in your controller 'datajalali' => $this->datajalali( $date )

pedram shabani Over a year ago

In my database, the date of each article is gregorian data.I want to when i print article with for loop.each data print date jalali for this i have class .And then i try convert data at the time of the show.

|

Jonathan Jalouzot · Accepted Answer · 2018-02-07 10:57:54Z

0

You need to follow http://symfony.com/doc/current/templating/twig_extension.html

You need to created extension twig.

namespace App\Twig;

use Twig\Extension\AbstractExtension;
use Twig\TwigFilter;
use Verta;

class AppExtension extends AbstractExtension
{
    public function getFunctions()
    {
        return array(
            new TwigFunction('datajalali', array($this, 'datajalali')),
        );
    }

    public function datajalali()
    {
        $articles = "sss";
        $v = new Verta(); //1396-02-02 15:32:08
        $v = Verta::now();

        return $v;
    }
}

You need after add service with tag twig.extension exemple

//service.yml
App\Twig\AppExtension:
    tags: ['twig.extension']

And you can use in your twig template

//twig
{{ datajalali() }}

answered Feb 7, 2018 at 10:57

Jonathan Jalouzot

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1 Comment

pedram shabani Over a year ago

Hey.thank you for time out.when i use your code i gave this error.:::-----1/1) RuntimeException The definition for "tags" has no class. If you intend to inject this service dynamically at runtime, please mark it as synthetic=true. If this is an abstract definition solely used by child definitions, please add abstract=true, otherwise specify a class to get rid of this error.

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