function DateTimeNormalizer::denormalize

File

core/modules/serialization/src/Normalizer/DateTimeNormalizer.php, line 89

Class

DateTimeNormalizer

Converts values for datetime objects to RFC3339 and from common formats.

Namespace

Code

public function denormalize($data, $class, $format = NULL, array $context = []) {
    // This only knows how to denormalize datetime strings and timestamps. If
    // something else is received, let validation constraints handle this.
    if (!is_string($data) && !is_numeric($data)) {
        return $data;
    }
    // Loop through the allowed formats and create a \DateTime from the
    // input data if it matches the defined pattern. Since the formats are
    // unambiguous (i.e., they reference an absolute time with a defined time
    // zone), only one will ever match.
    $allowed_formats = isset($context['datetime_allowed_formats']) ? $context['datetime_allowed_formats'] : $this->allowedFormats;
    foreach ($allowed_formats as $format) {
        $date = \DateTime::createFromFormat($format, $data);
        $errors = \DateTime::getLastErrors();
        if ($date !== FALSE && empty($errors['errors']) && empty($errors['warnings'])) {
            return $date;
        }
    }
    $format_strings = [];
    foreach ($allowed_formats as $label => $format) {
        $format_strings[] = "\"{$format}\" ({$label})";
    }
    $formats = implode(', ', $format_strings);
    throw new UnexpectedValueException(sprintf('The specified date "%s" is not in an accepted format: %s.', $data, $formats));
}