Symfony2验证日期时间1应在Datetime 2之前 [英] Symfony2 Validation Datetime 1 should be before Datetime 2

问题描述

我正在查看Symfony2验证参考，但我没有找到我需要的东西。

I'm looking through the Symfony2 Validation Reference but I'm not finding what I need.

我有一个就业与一个 StartDate 和结束日期。
我想添加一个\\ As @ @ Assert（），它验证了StartDate始终在EndDate 之前。
有没有比较类属性作为验证约束的标准方法，还是应该创建自定义验证约束？

I have a class Employment with a StartDate and EndDate. I would like to add an \@Assert() where it verifies that StartDate is always BEFORE EndDate. Is there a standard way of comparing class attributes as a Validation Constraint or should I create a custom validation constraint?

class Employment {

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

    /**
    * @ORM\Column(type="datetime") 
    * @Expose()
    * @Assert\DateTime()
    */
    protected $startDate;

    /**
    * @ORM\Column(type="datetime", nullable=TRUE)
    * @Expose()
    * @Assert\DateTime()
    */
    protected $endDate;

...
}

推荐答案

您可以编写一个自定义的DateRangeValidator。

You could write a custom DateRangeValidator.

class DateRange extends Constraint {

    public $message = "daterange.violation.crossing";
    public $emptyStartDate = "daterange.violation.startDate";
    public $emptyEndDate = "daterange.violation.endDate";

    public $hasEndDate = true;

    public function getTargets() {
        return self::CLASS_CONSTRAINT;
    }

    public function validatedBy() {
        return 'daterange_validator';
    }
}

class DateRangeValidator extends ConstraintValidator
{

    public function isValid($entity, Constraint $constraint)
    {

        $hasEndDate = true;
        if ($constraint->hasEndDate !== null) {
            $hasEndDate = $constraint->hasEndDate;
        }

        if ($entity->getStartDate() !== null) {
            if ($hasEndDate) {
                if ($entity->getEndDate() !== null) {
                    if ($entity->getStartDate() > $entity->getEndDate()) {
                        $this->setMessage($constraint->message);
                        return false;
                    }
                    return true;
                } else {
                    $this->setMessage($constraint->emptyEndDate);
                    return false;
                }
            } else {
                if ($entity->getEndDate() !== null) {
                    if ($entity->getStartDate() > $entity->getEndDate()) {
                        $this->setMessage($constraint->message);
                        return false;
                    }
                }
                return true;
            }
        } else {
            $this->setMessage($constraint->emptyStartDate);
            return false;
        }
    }

注册为服务：

parameters:
    register.daterange.validator.class:     XXX\FormExtensionsBundle\Validator\Constraints\DateRangeValidator

services:
    daterange.validator:
        class: %register.daterange.validator.class%
        tags:
            - { name: validator.constraint_validator, alias: daterange_validator }

并在您的实体中使用它：

And use it in your Entity:

use XXX\FormExtensionsBundle\Validator\Constraints as FormAssert;

/**
 *
 * @FormAssert\DateRange()
 */
class Contact extends Entity
{
    private $startDate;

    private $endDate;
}

尽管这似乎有点像一个简单的事情，但经验显示，那么需要一个日期范围验证器，而不仅仅是一次。

Eventhough it seems a bit much for a simple thing like that, but experience shows, that one needs a date range validator more often than just once.

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