Symfony3 Failed to create object

Question

I using Sonata Admin bundle. I get error: Failed to create object: PizzaBundle\Entity\Promotion. I did a Promotion entity:

/**
 * @ORM\Entity
 * @ORM\Table(name="promotion")
 */
class Promotion {

    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=100)
     */
    private $title;

    /**
     * @ORM\Column(type="string")
     */
    private $description;



    /**
     * @ORM\Column(type="blob")
     */
    private $image;

    /**
     * @ORM\Column(type="date")
     */
    private $dataStart;

    /**
     * @ORM\Column(type="date")
     */
    private $dataEnd;

And PromotionAdmin.php

public function configureFormFields(FormMapper $formMapper) {
        $formMapper
                ->add('title', 'text')
                ->add('description', 'text')
                ->end()
                ->with('Zdjęcie')
                    ->add('image', 'file', ['required' => false]) 
                    ->add('dataStart', 'date')
                    ->add('dataEnd', 'date')
                ->end();
    }

    protected function configureDatagridFilters(DatagridMapper $datagridMapper)
    {
        $datagridMapper
                ->add('title')
                ->add('description')
                ->add('image')
                ->add('dataStart')
                ->add('dataEnd')
                ;
    }

    protected function configureListFields(ListMapper $listMapper)
    {
        $listMapper
                ->addIdentifier('title')
                ->addIdentifier('description')
                ->addIdentifier('image')
                ->addIdentifier('dataStart')
                ->addIdentifier('dataEnd')
                ;
    }



}

My services.yml

admin.promotion:
        class: PizzaBundle\Admin\PromotionAdmin
        arguments: [~, PizzaBundle\Entity\Promotion, ~]
        tags:
            - { name: sonata.admin, manager_type: orm, label: Promotion }

I don't have a problem with my code. I think that this is problem with type variable Image in entity. If this is error in type blob, please help resolve problem.

There should be a log line with an exception, have a look in the profiler. — greg0ire
– greg0ire, Commented May 3, 2017 at 9:43

Arne · Accepted Answer · 2017-05-03 11:42:48Z

2

You are trying to insert NULL into the "image" column, which is not nullable it seems, which results in an MySQL error.

/**
 * @ORM\Entity
 * @ORM\Table(name="promotion")
 */
class Promotion 
{
     /**
      * @ORM\Column(type="blob", nullable=true)
      */
     private $image;
}

answered May 3, 2017 at 11:42

Arne

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