function Extract::transform

Overrides ProcessPluginBase::transform

File

core/modules/migrate/src/Plugin/migrate/process/Extract.php, line 69

Class

Extract

Extracts a value from an array.

Namespace

Code

public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property) {
    if (!is_array($value)) {
        throw new MigrateException('Input should be an array.');
    }
    $new_value = NestedArray::getValue($value, $this->configuration['index'], $key_exists);
    if (!$key_exists) {
        if (isset($this->configuration['default'])) {
            $new_value = $this->configuration['default'];
        }
        else {
            throw new MigrateException('Array index missing, extraction failed.');
        }
    }
    return $new_value;
}