关系 'OneToMany' Symfony2 - 错误

Question

我的 symfony2 项目中有这个错误：

The form's view data is expected to be an instance of class Proyecto\AdminBundle\Entity\Unidades, but is an instance of class Proyecto\AdminBundle\Entity\Catalogo. You can avoid this error by setting the "data_class" option to null or by adding a view transformer that transforms an instance of class Proyecto\AdminBundle\Entity\Catalogo to an instance of Proyecto\AdminBundle\Entity\Unidades.

消除了一些东西，如实体的 getter、setter 和属性。

Catalogo.php

    class Catalogo
    {
     /**
     * @ORM\OneToMany(targetEntity="Unidades", mappedBy="catalogo")
     */
    protected $unidades;

    public function __construct()
    {
        $this->unidades = new ArrayCollection();
    }

    public function getUnidades()
    {
        return $this->unidades;
    }

    public function setUnidades($unidades)
    {
        $this->unidades[] = $unidades;
        foreach ($unidades as $unidad) {
        $unidad->setCatalogo($this);
        }
    }

Unidades.php

class Unidades
{
    /**
    * @ORM\ManyToOne(targetEntity="Catalogo", inversedBy="unidades")
    * @ORM\JoinColumn(name="catalogo_id", referencedColumnName="id")
    */
    protected $catalogo;

   /**
     * Set catalogo
     *
     * @param float $catalogo
     * @return Unidades
     */
    public function setCatalogo($catalogo)
    {
        $this->catalogo = $catalogo;

        return $this;
    }

    /**
     * Get catalogo
     *
     * @return float 
     */
    public function getCatalogo()
    {
        return $this->catalogo;
    }

CatalogoUnidadesType.php

<?php

namespace Proyecto\AdminBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;


class CatalogoUnidadesType extends AbstractType {

    public function buildForm(FormBuilderInterface $builder, array $options) 
    {
        $builder->add('catalogo', new CatalogoType());
        $builder->add('unidades', new UnidadesType());

    }

    public function setDefaultOptions(\Symfony\Component\OptionsResolver\OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Proyecto\AdminBundle\Entity\Unidades'
        ));
    }

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

}

CatalogoType.php

<?php

namespace Proyecto\AdminBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;


class CatalogoType extends AbstractType {

    public function buildForm(FormBuilderInterface $builder, array $options) 
    {
        $builder->add('articulo');
        $builder->add('descripcion');

    }

    public function setDefaultOptions(\Symfony\Component\OptionsResolver\OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Proyecto\AdminBundle\Entity\Catalogo'
        ));
    }

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

}

UnidadesType.php

<?php

namespace Proyecto\AdminBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;


class UnidadesType extends AbstractType {

    public function buildForm(FormBuilderInterface $builder, array $options) 
    {
        $builder->add('medida');
        $builder->add('precio');

    }

    public function setDefaultOptions(\Symfony\Component\OptionsResolver\OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Proyecto\AdminBundle\Entity\Unidades'
        ));
    }

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

}

AdminController.php

public function agregarProductoCategoriaAction($tipo)
    {
        $request = $this->getRequest();
        $catalogo = new Catalogo();
        $unidades = new Unidades();
        $catalogo->setUnidades($unidades);
        $form = $this->createForm(new CatalogoUnidadesType(), $catalogo);

        /**........

        **/

       return $this->render('ProyectoAdminBundle:Admin:agregarProductoCategoria.html.twig', array('form' => $form->createView(), 'tipo' => $tipo));
    }

Answer 1

您应该构建一个名称为 CatalogoUnidades 的 class，其中包括 Catalog 和 Unidades，然后为其创建一个 FormType。

希望对您有所帮助。

关系 'OneToMany' Symfony2 - 错误

Relationship ' OneToMany ' Symfony2 - Error

php

entity-relationship

entity-framework

symfony