Symfony2 validation - first value is less than second

Question

I've got entity type of:

/**
 * @ORM\Table(name="entity")
 */
class Entity
{
    /**
     * @var integer
     *
     * @ORM\Column(type="integer", nullable=true)
     */
    private $value1;

    /**
     * @var integer
     *
     * @ORM\Column(type="integer", nullable=true)
     */
    private $value2;
}

How to check with validation that $value1 is less than $value2?

This should be useful: a validation callback that allows you to compare both values and set violations accordingly — Elias Van Ootegem
– Elias Van Ootegem, Commented Apr 20, 2015 at 18:27

M Khalid Junaid · Accepted Answer · 2015-04-20 18:29:09Z

2

You can use Expression constraint in your entity

use Symfony\Component\Validator\Constraints as Assert;
/**
 * @ORM\Table(name="entity")
 */
class Entity
{
    /**
     * @var integer
     * @Assert\Expression(
     *     "this.getValue2() < this.getValue1()",
     *     message="Value 1 should be less than value 2"
     *  )
     * @ORM\Column(type="integer", nullable=true)
     */
    private $value2;
}

answered Apr 20, 2015 at 18:29

M Khalid Junaid

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Elias Van Ootegem · Accepted Answer · 2015-04-20 18:31:09Z

1

Basically, as the cookbook explains extensively, you'll probably want to add the following to your entity:

use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Context\ExecutionContextInterface;
class Entity
{
    //the values stay the same
     /**
      * @Assert\Callback
      */
    public function validate(ExecutionContextInterface $context)
    {
        if ($this->value1 >= $this->value2)
        {
            $context->buildViolation('Value1 should be less than value2')
                ->atPath('value1')
                ->addViolation();
        }
    }
}

answered Apr 20, 2015 at 18:31

Elias Van Ootegem

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