Symfony2: Key no exists in array [twig]

Question

I want show the numbers of the elements in a array, but I have this problem

Key "idTipoFarmaco" for array with keys "0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12" does not exist in FarmacoBundle:Default:chartTipos.html.twig at line 17

Template

{% block artic %}

{{ entities.idTipoFarmaco.nombreFarmaco|length}}

{% endblock %}

Function

public function chartTiposFAction()
{
    $em = $this->getDoctrine()->getManager();
    $entities = $em->getRepository('::Entity')->findAll();



    return $this->render('::chartTipos.html.twig', array(
    'entities' => $entities

    ));

}

What do you want to do? Could you please explain further? Could you show us line 17 of chartTipos.html.twig? — acontell
– acontell, Commented Jan 12, 2015 at 8:21

Sander Toonen · Accepted Answer · 2015-01-13 08:59:34Z

Based on your comment on Jonathan (In which you explain that you want to count elements in the entities array which meet certain requirements) I would say you have to apply a filter before getting the length of the array.

See the Symfony documentation about how to create a custom filter.

First create a Twig extention class:

namespace Foo\BarBundle\Twig;

use Doctrine\Common\Collections\Collection;

class YourTwigFiltersExtension extends \Twig_Extension
{
    public function getFilters()
    {
        return array(
            new \Twig_SimpleFilter('filterType', array($this, 'filterType')),
        );
    }

    public function filterType(Collection $entities, $type)
    {
        return $entities->filter(function ($e) use ($type) {
            return $e->getType() == $type; // Replace this by your own check.
        });
    }

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

Then register your extension as a service in services.yml (or your xml):

foobar.twig.filters_extension:
    class: Foo\BarBundle\Twig\YourTwigFiltersExtension
    public: false
    tags:
        - { name: twig.extension }

And use it as follows in your templates:

{% block artic %}

{{ entities|filterType('dog')|length }}

{% endblock %}

Jonathan · Accepted Answer · 2015-01-12 04:45:40Z

0

update your template to be:

{% block artic %}

{{ entities|length }}

{% endblock %}

answered Jan 12, 2015 at 4:45

Jonathan

2,87515 silver badges23 bronze badges

3 Comments

Jaav Over a year ago

Sorry, I'll edit the post, i want show the elements of a specific type. Example: 100 animals elements in array is == {{ entities|length }} but I need show the 50 dogs

Jonathan Over a year ago

Your array is numeric, which means you'd need to do, {{ entities[0]|length }} could you perhaps post a sample of what your array is by doing a var_export($entities) on the php side.

Jaav Over a year ago

in the end I resolved using match and length in javascript. Thanks for help !

Collectives™ on Stack Overflow

Symfony2: Key no exists in array [twig]

2 Answers 2

Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related