--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Constraints;
+
+use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
+
+/**
+ * @Annotation
+ * @Target({"PROPERTY", "METHOD", "ANNOTATION"})
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class Collection extends Composite
+{
+ const MISSING_FIELD_ERROR = '2fa2158c-2a7f-484b-98aa-975522539ff8';
+ const NO_SUCH_FIELD_ERROR = '7703c766-b5d5-4cef-ace7-ae0dd82304e9';
+
+ protected static $errorNames = array(
+ self::MISSING_FIELD_ERROR => 'MISSING_FIELD_ERROR',
+ self::NO_SUCH_FIELD_ERROR => 'NO_SUCH_FIELD_ERROR',
+ );
+
+ public $fields = array();
+ public $allowExtraFields = false;
+ public $allowMissingFields = false;
+ public $extraFieldsMessage = 'This field was not expected.';
+ public $missingFieldsMessage = 'This field is missing.';
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct($options = null)
+ {
+ // no known options set? $options is the fields array
+ if (is_array($options)
+ && !array_intersect(array_keys($options), array('groups', 'fields', 'allowExtraFields', 'allowMissingFields', 'extraFieldsMessage', 'missingFieldsMessage'))) {
+ $options = array('fields' => $options);
+ }
+
+ parent::__construct($options);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function initializeNestedConstraints()
+ {
+ parent::initializeNestedConstraints();
+
+ if (!is_array($this->fields)) {
+ throw new ConstraintDefinitionException(sprintf('The option "fields" is expected to be an array in constraint %s', __CLASS__));
+ }
+
+ foreach ($this->fields as $fieldName => $field) {
+ // the XmlFileLoader and YamlFileLoader pass the field Optional
+ // and Required constraint as an array with exactly one element
+ if (is_array($field) && count($field) == 1) {
+ $this->fields[$fieldName] = $field = $field[0];
+ }
+
+ if (!$field instanceof Optional && !$field instanceof Required) {
+ $this->fields[$fieldName] = $field = new Required($field);
+ }
+ }
+ }
+
+ public function getRequiredOptions()
+ {
+ return array('fields');
+ }
+
+ protected function getCompositeOption()
+ {
+ return 'fields';
+ }
+}