Twig: How to round up?

Question

I have a division in twig. Sometimes, the result can be with decimals and i need to have always a rounded up result.

Ex.

7 / 2 = 3.5

I would like to have

7 / 2 = 4

I know how to use floor in twig:

7 / 2 | floor = 3

But this is rounding to the down digit, not to the upper one.

I know also that i can use number_format

7 / 2 | number_format(0, '.', ',') = 3

So this will also take the down digit.

Any idea on how to tell twig to take the upper digit ?

This can be done in a controller (Symfony), but I am looking for the twig version.

Thank you.

Answer 1

Update

On versions 1.15.0+, round filter is available.

{{ (7 / 2)|round(1, 'ceil') }}

https://twig.symfony.com/doc/3.x/filters/round.html

---

You can extend twig and write your custom functions as it is described here

And it will be something like this:

<?php
// src/Acme/DemoBundle/Twig/AcmeExtension.php
namespace Acme\DemoBundle\Twig;

class AcmeExtension extends \Twig_Extension
{
    public function getFilters()
    {
        return array(
            'ceil' => new \Twig_Filter_Method($this, 'ceil'),
        );
    }

    public function ceil($number)
    {
        return ceil($number);
    }

    public function getName()
    {
        return 'acme_extension';
    }
}

So you can you use it in twig:

(7 / 2) | ceil