symfony constraint
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<?php
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namespace Deblan\Validator\Constraints;
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use Symfony\Component\Validator\Constraints\File;
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class Csv extends File
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{
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const FIELD_NOT_VALID = 10;
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const FIELD_NOT_DETECTED = 11;
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const LINE_NOT_VALID = 12;
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protected static $errorNames = [
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self::FIELD_NOT_VALID = 'FIELD_NOT_VALID',
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self::FIELD_NOT_DETECTED = 'FIELD_NOT_DETECTED',
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self::LINE_NOT_VALID = 'LINE_NOT_VALID',
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];
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public $fieldsConstraints = [];
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public $lineConstraints = [];
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public $fieldNotValidMessage = 'The field {{ field }} of the line {{ line }} is not valid. {{ message }}';
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public $fieldNotDetectedMessage = 'The field {{ field }} of the line {{ line }} is missing.';
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public $lineNotValidMessage = 'The line {{ line }} is not valid. {{ message }}';
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}
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<?php
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namespace Deblan\Validator\Constraints;
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use Symfony\Component\Validator\Constraints\FileValidator;
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use Symfony\Component\Validator\Constraint;
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use Deblan\Csv\CsvParser;
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class CsvValidator extends FileValidator
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{
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public function validate($value, Constraint $constraint)
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{
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if (!$constraint instanceof Csv) {
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throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Csv');
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}
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$violations = count($this->context->getViolations());
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parent::validate($value, $constraint);
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if (null === $constraint->parser) {
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throw new \RuntimeException('You must set a CSV parser.');
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}
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if (!is_object($constraint->parser) || !($value instanceof CsvParser)) {
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throw new \RuntimeException('You must be an instance of Deblan\\Csv\\CsvParser.');
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}
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if (empty($constraint->fieldsConstraints) && empty($constraint->lineConstraints)) {
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return;
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}
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$context = $this->context;
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$parser = $constraint->parser;
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$parser->setFilename($value);
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$parser->parse();
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foreach ($parser->getDatas() as $line => $data) {
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if ($parser->getHasLegend() && $line === 0) {
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continue;
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}
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foreach ($constraint->lineConstraints as $lineConstraint) {
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$violations = $this->getConstraintViolations($context, $data, $lineConstraint);
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foreach ($violations as $violation) {
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$this->buildViolationInContext($context, $constraint->lineNotValidMessage)
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->setParameter('{{ line }}', $line + 1)
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->setParameter('{{ message }}', $violation->getMessage())
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->setInvalidValue(null)
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->setCode(Csv::LINE_NOT_VALID)
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->addViolation();
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}
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}
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foreach ($constraint->fieldsConstraints as $field => $fieldConstraints) {
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if (!array_key_exists($field, $line)) {
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$this->buildViolationInContext($context, $constraint->fieldNotDetectedMessage)
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->setParameter('{{ field }}', ctype_digit($field) ? $field + 1 : $field)
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->setParameter('{{ line }}', $line + 1)
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->setParameter('{{ message }}', $violation->getMessage())
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->setInvalidValue(null)
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->setCode(Csv::FIELD_NOT_DETECTED)
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->addViolation();
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continue;
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}
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foreach ($fieldConstraints as $fieldConstraint) {
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$violations = $this->getConstraintViolations($context, $data[$field], $fieldConstraint);
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foreach ($violations as $violation) {
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$this->buildViolationInContext($context, $constraint->fieldNotValidMessage)
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->setParameter('{{ field }}', ctype_digit($field) ? $field + 1 : $field)
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->setParameter('{{ line }}', $k + 1)
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->setParameter('{{ message }}', $violation->getMessage())
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->setInvalidValue(null)
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->setCode(Csv::FIELD_NOT_VALID)
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->addViolation();
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}
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}
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}
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}
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}
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protected function getConstraintViolations($context, $data, Constraint $constraint)
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{
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if ($context instanceof ExecutionContextInterface) {
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$violations = $context->getValidator()
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->inContext($context)
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->validate($data, $constraint);
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} else {
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// 2.4 API
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$violations = $context->validateValue($data, $constraint);
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}
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return $violations;
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}
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}
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