CODEWITHSUNDEEP
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Jaav
Jaav

Reputation: 23

Symfony2: Key no exists in array [twig]

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

    ));

}

Upvotes: 2

Views: 4414

Answers (2)

Sander Toonen
Sander Toonen

Reputation: 3573

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 %}

Upvotes: 2

Jonathan
Jonathan

Reputation: 2877

update your template to be:

{% block artic %}

{{ entities|length }}

{% endblock %}

Upvotes: 0

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