Geek asks and answers

Symfony2; How to add a hidden date type field to a form?

I am trying the script below:

AT myclassType

public function buildForm(FormBuilder $builder, array $options)
{
    $builder
        ->add('day','hidden')
        ->add('date', 'hidden' ) 
        ->add('hours')
        ->add('comment','textarea')
    ;
}

AT myclass

class myclass
{
    //.. Other stuff

    /**
     * @ORM\Column(type="date")
     *
     * @var date $date
     */
    protected $date;
}

During rendering, I get this error:

An exception has been thrown during the rendering of a template ("Catchable Fatal Error:
 Object of class DateTime could not be converted to string in 
C:\wamp\www\PMI_sf2\app\cache\dev\twig\fb\40\8957f80f2358a6f4112c3427b387.php line 684") in
 form_div_layout.html.twig at line 171.

Any idea how I can hide a date type field! ??

+3
source share
6 answers

The form

$builder
    ->add('day','hidden')
    ->add('date',null,array( 'attr'=>array('style'=>'display:none;')) )
...
+8
source

Create a simple DataTransformer from a DateTime object into a string and a new form type called ie 'hidden_datetime', which uses the new DataTransformer and has a hidden form type as the parent.

<?php

namespace YourProject\YourBundle\Form\DataTransformer;

use Symfony\Component\Form\DataTransformerInterface;

class DateTimeToStringTransformer implements DataTransformerInterface
{

    public function __construct()
    {   
    }

    /**
     * @param \DateTime|null $datetime
     * @return string
     */
    public function transform($datetime)
    {
        if (null === $datetime) {
            return '';
        }       
        return $datetime->format('Y-m-d H:i:s');
    }

    /**
     * @param  string $datetimeString
     * @return \DateTime
     */
    public function reverseTransform($datetimeString)
    {
        $datetime = new \DateTime($datetimeString);
        return $datetime;
    }
}

..

<?php

namespace YourProject\YourBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Symfony\Component\Form\FormBuilderInterface;
use YourProject\YourBundle\Form\DataTransformer\DateTimeToStringTransformer;

class HiddenDateTimeType extends AbstractType
{

    public function __construct()
    {
    }

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

    public function getParent()
    {
        return 'hidden';
    }   

     public function buildForm(FormBuilderInterface $builder, array $options)
    {   
        $transformer = new DateTimeToStringTransformer();
        $builder->addModelTransformer($transformer);
    }   

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        parent::setDefaultOptions($resolver);   
        $resolver->setDefaults(array(
        ));
    }    
}

register a new form type 'hidden_datetime' as a service in services.yml

yourproject.hidden_datetime.form.type:
    class: YourProject\YourBundle\Form\Type\HiddenDateTimeType
    tags:
        - { name: form.type, alias: hidden_datetime }

The new type hidden_datetime can then be used in your form:

// In myclassType

public function buildForm(FormBuilder $builder, array $options)
{
    $builder
            ->add('createdAt','hidden_datetime')
            ->add('comment','textarea')
    ;
}
+8
source

. martti

DateTimeType "".

<?php

namespace YourProject\YourBundle\Form\Type\HiddenDateTimeType

use Symfony\Component\Form\Extension\Core\Type\DateTimeType;

class HiddenDateTimeType extends DateTimeType
{
    public function getName()
    {
        return 'hidden_datetime';
    }

    public function getParent(array $options)
    {
        return 'hidden';
    }
}

:

yourproject.hidden_datetime.form.type:
    class: YourProject\YourBundle\Form\Type\HiddenDateTimeType
    tags:
        - { name: form.type, alias: hidden_datetime }

DateTimeType

public function buildForm(FormBuilder $builder, array $options)
{

    $builder
        ->add('from' , 'hidden_date', array(
            'widget' => 'single_text',
            'format' => 'Y-m-d',
            'label' => 'popin.from',
            'required' => true
        ));
+3

, . . . , . single_text. , .

$builder->add('date', 'date', array('widget' => 'single_text'));

Twig

{% form_theme form _self %}

{# Makes all dates hidden, you can also name your field specifically #}
{% block date_row %}
    {{ block('hidden_widget') }} {# This is normally 'field_widget' #}
{% endblock %}

. http://symfony.com/doc/current/cookbook/form/form_customization.html#form-theming

+1

Symfony 3.3. :

<?php

namespace <YourProject>\<YourBundle>\Form\Type;

use Symfony\Component\Form\Extension\Core\Type\HiddenType;
use Symfony\Component\Form\DataTransformerInterface;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\Exception\TransformationFailedException;

class HiddenDateTimeType extends HiddenType implements DataTransformerInterface
{
    /**
    * {@inheritdoc}
    */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->addModelTransformer($this);
    }

    /**
    * {@inheritdoc}
    */
    public function transform($data)
    {
        return $data->format("Y-m-d H:i:s");
    }

    /**
    * {@inheritdoc}
    */
    public function reverseTransform($data)
    {
        try {
            return new \DateTime($data);
        } catch (\Exception $e) {
            throw new TransformationFailedException($e->getMessage());
        }
    }

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

:

<?php

namespace <YourProject>\<YourBundle>\Form;

use <YourProject>\<YourBundle>\Form\Type\HiddenDateTimeType;

class ReportType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('creationTime', HiddenDateTimeType::class, array(
                'required' => true,
            ));
    }
}

, services.yml.

+1

public function buildForm(FormBuilder $builder, array $options){
    $builder
        ->add('day','hidden')
        ->add('date') 
        ->add('hours')
        ->add('comment','textarea');
}

:

<form action="{{ path('some-save-action') }}" method="post" {{ form_enctype(form) }}>
    <div style="display: none">
         {{ form_row(form.date) }}
    </div>

    {{ form_errors(form) }}
    {{ form_rest(form) }}
    <input type="submit" value="Save" class="button confirm big"/>
</form>
0

More articles:


All Articles