How to validate two instances of the same entity?

Question

Use case

I am learning Symfony2 and am creating a Table Tennis tracking app to learn the framework. I have configured my entities as follows.

Player 1..n Result n..1 Match

On my form I'd like to validate that the scores for a match are correct.

Implementation

Match has an ArrayCollection() of results.

My MatchType and ResultType forms contain the following.

 // Form\MatchType
    $builder->add('matchType', 'entity', array(
            'class' => 'PingPongMatchesBundle:MatchType',
            'property' => 'name',
        )
    )
    ->add('results', 'collection', array(
            'type' => new ResultType(),
            'allow_add' => true,
            'by_reference' => false,
        )
    )
    ->add('notes');

 // Form\ResultType
    $builder->add('player', 'entity', array(
                'class' => 'PingPongPlayerBundle:Player',
                'query_builder' => function(EntityRepository $er) {
                    return $er->createQueryBuilder('p')
                        ->orderBy('p.firstName', 'ASC');
                },
            ))
            ->add('score');

Issue

I need to be able to validate the scores. However I'm not sure how to approach this type of validation as I need to compare two instances of my Result#score in order to know if they are valid or not.

Is anyone able to suggest a method or approach that I could use in order to be able to compare Result#score between the two different instances? Can I validate the ArrayCollection in the Match entity for example?

score 0 · Accepted Answer · answered Mar 04 '13 at 12:00

0

You could creat a custom validator constraint on Match entity. http://symfony.com/doc/2.0/cookbook/validation/custom_constraint.html

answered Mar 04 '13 at 12:00

tomas.pecserke

3,260
25
26

Thanks for the link, but your answer is too brief to constitute a proper answer. – David Yell Mar 04 '13 at 12:53

score 0 · Answer 2 · answered Mar 04 '13 at 12:19

0

Take a look in Callback constraint:

http://symfony.com/doc/2.1/reference/constraints/Callback.html

answered Mar 04 '13 at 12:19

vjnrv

91
1
2

Thanks for the link, but your answer is too brief to constitute a proper answer. – David Yell Mar 04 '13 at 12:54

How to validate two instances of the same entity?

Use case

Implementation

Issue

2 Answers2