symfony validates if another field is specific value

Question

I'm trying to write a validation for a field(1) to be required if another field(3) is option 'a', and a different field(2) if 3 is 'b'. How would I go about doing that?

EDIT: It is for an Entity. I'll post a sample of what I'm trying.

/**
*@Assert\Collection(
*fields = { aName = @Assert\NotBlank(),
*           aAmount = @Assert\NotBlank() }
*/
protected $1;

/**
*@Assert\Collection(
*fields = { bName = @Assert\NotBlank(),
*           bAmount = @Assert\NotBlank() }
*/
protected $2;

/**
*@Assert\NotBlank()
*/
protected $3;

I need $1 to be required if $3 == 'a', and $2 if $3 =='b'.

Dariusz Kowalski · Accepted Answer · 2015-01-21 08:23:26Z

18

You can use validation constraint: Expression

Example:

/**
* @Assert\Expression(
 *     "not (this.getThird() == 'a' and this.getFirst() == null)",
 *     message="If third = 'a', first should be not null"
 * )
 */
protected $first;

/**
 * @Assert\Expression(
 *     "not (this.getThird() == 'b' and this.getSecond() == null)",
 *     message="If third = 'b', second should be not null"
 * )
 */
protected $second;

protected $third;

public function getFirst()
{
     return $this->first;   
}

public function getSecond()
{
     return $this->second;   
}

public function getThird()
{
     return $this->third;   
}

edited Jan 21, 2015 at 8:23

answered Jan 5, 2015 at 19:17

Dariusz Kowalski

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Comments

loicfavory · Accepted Answer · 2015-01-02 19:46:34Z

1

You could try with a Callback constraint : http://symfony.com/doc/current/reference/constraints/Callback.html

answered Jan 2, 2015 at 19:46

loicfavory

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