Question

我想在NumberType字段中输入数字，但是当出现此异常时：

关联字段“ GestionBundle \ Entity \ Intervention＃$ materialCost”的类型为“ GestionBundle \ Entity \ MaterialCost”的预期值改为为“ double”。

干预

namespace GestionBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Doctrine\ORM\Mapping\OneToOne;

/**
 * @ORM\Entity
 */
class Intervention
{
    /**
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     *
     * @ORM\Column(name="comments", type="text", nullable=true)
     */
    private $comments;

    /**
     * One Intervention has One materialCost.
     * @OneToOne(targetEntity="MaterialCost", inversedBy="intervention", cascade={"persist"}) 
     */
    private $materialCost;

    public function __toString() {
        if (is_null($this->comments)) {
            return '';
        }
        return $this->comments;
    }
}

材料成本

namespace GestionBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class MaterialCost
{
    /*
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var float
     * @ORM\Column(name="material_cost", type="float")
     */
    private $materialCost;

    /**
     * @ORM\OneToOne(targetEntity="Intervention", mappedBy="materialCost") 
     */
    private $intervention;

    public function __toString() {
        return (string) $this->materialCost;  
    }
}

InterventionType

namespace GestionBundle\Form;

use Doctrine\ORM\EntityRepository;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\NumberType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class InterventionType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('materialCost',  NumberType::class, ['required' => true])
                ->add('comments', TextareaType::class, ['required' => false])
        ;
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'GestionBundle\Entity\MaterialCost'
        ));
    }
}

Answer 1

很明显，您应该将一个对象传递给materialCost实体对象的Intervention属性，但是您给它提供了一个数字，这是错误的。

我认为您最好完全放弃MaterialCost实体类，并像这样更改Intervention的{{1}}属性映射：

干预

materialCost

但是，如果您确定要拥有该/** * Intervention has a materialCost value. * @ORM/Column(type="float", name="material_cost") */ private $materialCost;实体类，则可以采用以下方法：

InterventionType

MaterialCost

这样，您可以选择namespace GestionBundle\Form; use Doctrine\ORM\EntityRepository; use GestionBundle\Entity\Intervention; use GestionBundle\Entity\MaterialCost; use Symfony\Bridge\Doctrine\Form\Type\EntityType; use Symfony\Component\Form\AbstractType; use Symfony\Component\Form\Extension\Core\Type\TextareaType; use Symfony\Component\Form\FormBuilderInterface; use Symfony\Component\OptionsResolver\OptionsResolver; class InterventionType extends AbstractType { public function buildForm(FormBuilderInterface $builder, array $options) { $builder ->add('materialCost', EntityType::class, [ 'required' => true, 'class' => MaterialCost::class, 'choice_label' => 'materialCost', ]) ->add('comments', TextareaType::class, ['required' => false]) ; } public function configureOptions(OptionsResolver $resolver) { $resolver->setDefaults(array( 'data_class' => Intervention::class )); } }的某个实例并将其关联到MaterialCost。如果您希望能够输入一个新数字，并同时在Intervention表单内创建一个MaterialCost对象，则可以使用另一种称为 prototype 的方法

考虑为此阅读How to Embed a Collection of Forms。

关联字段类型的期望值，改为“ double”

1 个答案: