symfony/symfony — pull request #3118 by bschussek (2012-01-15 18:54:06+00:00)
Title: [Validator] Improve support for optional/required fields

Bug fix: no
Feature addition: yes
Backwards compatibility break: no
Symfony2 tests pass: yes
Fixes the following tickets: none
Todo: none

![Travis Build Status](https://secure.travis-ci.org/bschussek/symfony.png?branch=collection-validator)

Improves the `Collection` constraint to test on a more granular level if entries of the collection are optional or required. Before this could only be set using the "allowExtraFields" and "allowMissingFields" options, but these are very general and limited.

The former syntax - without Optional or Required - is still supported.

Usage:

$array = array(
'name' => 'Bernhard',
'birthdate' => '1970-01-01',
);
$validator->validate($array, null, new Collection(array(
'name' => new Required(),
'birthdate' => new Optional(),
));

// you can also pass additional constraints for the fields
$validator->validate($array, null, new Collection(array(
'name' => new Required(array(
new Type('string'),
new MinLength(3),
)),
'birthdate' => new Optional(new Date()),
));