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1 <?php
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2
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3 /*
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4 * This file is part of the Symfony package.
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5 *
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6 * (c) Fabien Potencier <fabien@symfony.com>
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Symfony\Component\Validator\Constraints;
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13
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14 use Symfony\Component\Validator\Constraint;
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15 use Symfony\Component\Validator\ConstraintValidator;
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16 use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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17
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18 /**
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19 * @author Bernhard Schussek <bschussek@gmail.com>
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20 */
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21 class CollectionValidator extends ConstraintValidator
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22 {
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23 /**
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24 * {@inheritdoc}
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25 */
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26 public function validate($value, Constraint $constraint)
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27 {
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28 if (!$constraint instanceof Collection) {
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29 throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Collection');
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30 }
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31
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32 if (null === $value) {
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33 return;
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34 }
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35
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36 if (!\is_array($value) && !($value instanceof \Traversable && $value instanceof \ArrayAccess)) {
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37 throw new UnexpectedTypeException($value, 'array or Traversable and ArrayAccess');
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38 }
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39
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40 // We need to keep the initialized context when CollectionValidator
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41 // calls itself recursively (Collection constraints can be nested).
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42 // Since the context of the validator is overwritten when initialize()
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43 // is called for the nested constraint, the outer validator is
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44 // acting on the wrong context when the nested validation terminates.
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45 //
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46 // A better solution - which should be approached in Symfony 3.0 - is to
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47 // remove the initialize() method and pass the context as last argument
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48 // to validate() instead.
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49 $context = $this->context;
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50
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51 foreach ($constraint->fields as $field => $fieldConstraint) {
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52 // bug fix issue #2779
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53 $existsInArray = \is_array($value) && \array_key_exists($field, $value);
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54 $existsInArrayAccess = $value instanceof \ArrayAccess && $value->offsetExists($field);
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55
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56 if ($existsInArray || $existsInArrayAccess) {
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57 if (\count($fieldConstraint->constraints) > 0) {
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58 $context->getValidator()
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59 ->inContext($context)
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60 ->atPath('['.$field.']')
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61 ->validate($value[$field], $fieldConstraint->constraints);
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62 }
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63 } elseif (!$fieldConstraint instanceof Optional && !$constraint->allowMissingFields) {
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64 $context->buildViolation($constraint->missingFieldsMessage)
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65 ->atPath('['.$field.']')
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66 ->setParameter('{{ field }}', $this->formatValue($field))
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67 ->setInvalidValue(null)
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68 ->setCode(Collection::MISSING_FIELD_ERROR)
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69 ->addViolation();
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70 }
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71 }
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72
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73 if (!$constraint->allowExtraFields) {
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74 foreach ($value as $field => $fieldValue) {
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75 if (!isset($constraint->fields[$field])) {
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76 $context->buildViolation($constraint->extraFieldsMessage)
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77 ->atPath('['.$field.']')
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78 ->setParameter('{{ field }}', $this->formatValue($field))
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79 ->setInvalidValue($fieldValue)
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80 ->setCode(Collection::NO_SUCH_FIELD_ERROR)
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81 ->addViolation();
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82 }
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83 }
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84 }
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85 }
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86 }
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