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1 | <?php |
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2 | |||
3 | /* |
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4 | * This file is part of the Sylius package. |
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5 | * |
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6 | * (c) Paweł Jędrzejewski |
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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 | |||
12 | declare(strict_types=1); |
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13 | |||
14 | namespace Sylius\Bundle\CoreBundle\Validator\Constraints; |
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15 | |||
16 | use Doctrine\Common\Persistence\ManagerRegistry; |
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17 | use Doctrine\Common\Persistence\Mapping\ClassMetadata; |
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18 | use Doctrine\Common\Persistence\ObjectManager; |
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19 | use Symfony\Component\PropertyAccess\PropertyAccess; |
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20 | use Symfony\Component\PropertyAccess\PropertyAccessor; |
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21 | use Symfony\Component\Validator\Constraint; |
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22 | use Symfony\Component\Validator\ConstraintValidator; |
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23 | use Symfony\Component\Validator\Exception\ConstraintDefinitionException; |
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24 | use Webmozart\Assert\Assert; |
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25 | |||
26 | final class HasEnabledEntityValidator extends ConstraintValidator |
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27 | { |
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28 | /** |
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29 | * @var ManagerRegistry |
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30 | */ |
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31 | private $registry; |
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32 | |||
33 | /** |
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34 | * @var PropertyAccessor |
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35 | */ |
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36 | private $accessor; |
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37 | |||
38 | /** |
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39 | * @param ManagerRegistry $registry |
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40 | */ |
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41 | public function __construct(ManagerRegistry $registry) |
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42 | { |
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43 | $this->registry = $registry; |
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44 | $this->accessor = PropertyAccess::createPropertyAccessor(); |
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45 | } |
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46 | |||
47 | /** |
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48 | * {@inheritdoc} |
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49 | * |
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50 | * @throws \InvalidArgumentException |
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51 | * @throws ConstraintDefinitionException |
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52 | */ |
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53 | public function validate($entity, Constraint $constraint): void |
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54 | { |
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55 | /** @var HasEnabledEntity $constraint */ |
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56 | Assert::isInstanceOf($constraint, HasEnabledEntity::class); |
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57 | |||
58 | $enabled = $this->accessor->getValue($entity, $constraint->enabledPath); |
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59 | |||
60 | if ($enabled === true) { |
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61 | return; |
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62 | } |
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63 | |||
64 | $objectManager = $this->getProperObjectManager($constraint->objectManager, $entity); |
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65 | |||
66 | $this->ensureEntityHasProvidedEnabledField($objectManager, $entity, $constraint->enabledPath); |
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67 | |||
68 | $criteria = [$constraint->enabledPath => true]; |
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69 | |||
70 | $repository = $objectManager->getRepository(get_class($entity)); |
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71 | $results = $repository->{$constraint->repositoryMethod}($criteria); |
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72 | |||
73 | /* If the result is a MongoCursor, it must be advanced to the first |
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74 | * element. Rewinding should have no ill effect if $result is another |
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75 | * iterator implementation. |
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76 | */ |
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77 | if ($results instanceof \Iterator) { |
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78 | $results->rewind(); |
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79 | } elseif (is_array($results)) { |
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80 | reset($results); |
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81 | } |
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82 | |||
83 | if ($this->isLastEnabledEntity($results, $entity)) { |
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84 | $errorPath = null !== $constraint->errorPath ? $constraint->errorPath : $constraint->enabledPath; |
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85 | |||
86 | $this->context->buildViolation($constraint->message)->atPath($errorPath)->addViolation(); |
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87 | } |
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88 | } |
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89 | |||
90 | /** |
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91 | * If no entity matched the query criteria or a single entity matched, which is the same as the entity being |
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92 | * validated, the entity is the last enabled entity available. |
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93 | * |
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94 | * @param array|\Iterator $result |
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95 | * @param object $entity |
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96 | * |
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97 | * @return bool |
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98 | */ |
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99 | private function isLastEnabledEntity($result, $entity): bool |
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100 | { |
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101 | return !$result || 0 === count($result) |
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102 | || (1 === count($result) && $entity === ($result instanceof \Iterator ? $result->current() : current($result))); |
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103 | } |
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104 | |||
105 | /** |
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106 | * @param string|null $manager |
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107 | * @param object $entity |
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108 | * |
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109 | * @return ObjectManager|null |
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110 | */ |
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111 | private function getProperObjectManager(?string $manager, $entity): ?ObjectManager |
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112 | { |
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113 | if ($manager) { |
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114 | $objectManager = $this->registry->getManager($manager); |
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115 | |||
116 | $this->validateObjectManager($objectManager, sprintf('Object manager "%s" does not exist.', $manager)); |
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117 | } else { |
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118 | $objectManager = $this->registry->getManagerForClass(get_class($entity)); |
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119 | |||
120 | $this->validateObjectManager( |
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121 | $objectManager, |
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122 | sprintf( |
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123 | 'Unable to find the object manager associated with an entity of class "%s".', |
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124 | get_class($entity) |
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125 | ) |
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126 | ); |
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127 | } |
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128 | |||
129 | return $objectManager; |
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130 | } |
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131 | |||
132 | /** |
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133 | * @param ObjectManager|null $objectManager |
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134 | * @param string $exceptionMessage |
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135 | * |
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136 | * @throws ConstraintDefinitionException |
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137 | */ |
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138 | private function validateObjectManager(?ObjectManager $objectManager, string $exceptionMessage): void |
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139 | { |
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140 | if (!$objectManager) { |
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141 | throw new ConstraintDefinitionException($exceptionMessage); |
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142 | } |
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143 | } |
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144 | |||
145 | /** |
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146 | * @param ObjectManager $objectManager |
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147 | * @param object $entity |
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148 | * @param string $enabledPropertyPath |
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149 | * |
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150 | * @throws ConstraintDefinitionException |
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151 | */ |
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152 | private function ensureEntityHasProvidedEnabledField(ObjectManager $objectManager, $entity, string $enabledPropertyPath): void |
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153 | { |
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154 | /** @var ClassMetadata $class */ |
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155 | $class = $objectManager->getClassMetadata(get_class($entity)); |
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156 | |||
157 | if (!$class->hasField($enabledPropertyPath) && !$class->hasAssociation($enabledPropertyPath)) { |
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158 | throw new ConstraintDefinitionException( |
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159 | sprintf("The field '%s' is not mapped by Doctrine, so it cannot be validated.", $enabledPropertyPath) |
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160 | ); |
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161 | } |
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162 | } |
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163 | } |
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164 |
Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: