ApiPlatform\Core\Bridge\Doctrine\Orm\Filter\SearchFilter::filterProperty PHP Method

    protected function filterProperty(string $property, $value, QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $resourceClass, string $operationName = null)
    {
        if (null === $value || !$this->isPropertyEnabled($property) || !$this->isPropertyMapped($property, $resourceClass, true)) {
            return;
        }
        $alias = 'o';
        $field = $property;
        if ($this->isPropertyNested($property)) {
            list($alias, $field, $associations) = $this->addJoinsForNestedProperty($property, $alias, $queryBuilder, $queryNameGenerator);
            $metadata = $this->getNestedMetadata($resourceClass, $associations);
        } else {
            $metadata = $this->getClassMetadata($resourceClass);
        }
        $values = $this->normalizeValues((array) $value);
        if (empty($values)) {
            $this->logger->notice('Invalid filter ignored', ['exception' => new InvalidArgumentException(sprintf('At least one value is required, multiple values should be in "%1$s[]=firstvalue&%1$s[]=secondvalue" format', $property))]);
            return;
        }
        $caseSensitive = true;
        if ($metadata->hasField($field)) {
            if ('id' === $field) {
                $values = array_map([$this, 'getIdFromValue'], $values);
            }
            $strategy = $this->properties[$property] ?? self::STRATEGY_EXACT;
            // prefixing the strategy with i makes it case insensitive
            if (strpos($strategy, 'i') === 0) {
                $strategy = substr($strategy, 1);
                $caseSensitive = false;
            }
            if (1 === count($values)) {
                $this->addWhereByStrategy($strategy, $queryBuilder, $queryNameGenerator, $alias, $field, $values[0], $caseSensitive);
                return;
            }
            if (self::STRATEGY_EXACT !== $strategy) {
                $this->logger->notice('Invalid filter ignored', ['exception' => new InvalidArgumentException(sprintf('"%s" strategy selected for "%s" property, but only "%s" strategy supports multiple values', $strategy, $property, self::STRATEGY_EXACT))]);
                return;
            }
            $wrapCase = $this->createWrapCase($caseSensitive);
            $valueParameter = $queryNameGenerator->generateParameterName($field);
            $queryBuilder->andWhere(sprintf($wrapCase('%s.%s') . ' IN (:%s)', $alias, $field, $valueParameter))->setParameter($valueParameter, $caseSensitive ? $values : array_map('strtolower', $values));
        }
        // metadata doesn't have the field, nor an association on the field
        if (!$metadata->hasAssociation($field)) {
            return;
        }
        $values = array_map([$this, 'getIdFromValue'], $values);
        $association = $field;
        $valueParameter = $queryNameGenerator->generateParameterName($association);
        $associationAlias = $this->addJoinOnce($queryBuilder, $queryNameGenerator, $alias, $association);
        if (1 === count($values)) {
            $queryBuilder->andWhere(sprintf('%s.id = :%s', $associationAlias, $valueParameter))->setParameter($valueParameter, $values[0]);
        } else {
            $queryBuilder->andWhere(sprintf('%s.id IN (:%s)', $associationAlias, $valueParameter))->setParameter($valueParameter, $values);
        }
    }