Mercurial > hg > isophonics-drupal-site
diff core/modules/migrate/src/Plugin/MigrateProcessInterface.php @ 0:4c8ae668cc8c
Initial import (non-working)
author | Chris Cannam |
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date | Wed, 29 Nov 2017 16:09:58 +0000 |
parents | |
children | c2387f117808 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/core/modules/migrate/src/Plugin/MigrateProcessInterface.php Wed Nov 29 16:09:58 2017 +0000 @@ -0,0 +1,57 @@ +<?php + +namespace Drupal\migrate\Plugin; + +use Drupal\Component\Plugin\PluginInspectionInterface; +use Drupal\migrate\MigrateExecutableInterface; +use Drupal\migrate\Row; + +/** + * An interface for migrate process plugins. + * + * A process plugin can use any number of methods instead of (but not in + * addition to) transform with the same arguments and then the plugin + * configuration needs to provide the name of the method to be called via the + * "method" key. See \Drupal\migrate\Plugin\migrate\process\SkipOnEmpty and + * migrate.migration.d6_field_instance_widget_settings.yml for examples. + * + * @see \Drupal\migrate\Plugin\MigratePluginManager + * @see \Drupal\migrate\ProcessPluginBase + * @see \Drupal\migrate\Annotation\MigrateProcessPlugin + * @see plugin_api + * + * @ingroup migration + */ +interface MigrateProcessInterface extends PluginInspectionInterface { + + /** + * Performs the associated process. + * + * @param mixed $value + * The value to be transformed. + * @param \Drupal\migrate\MigrateExecutableInterface $migrate_executable + * The migration in which this process is being executed. + * @param \Drupal\migrate\Row $row + * The row from the source to process. Normally, just transforming the value + * is adequate but very rarely you might need to change two columns at the + * same time or something like that. + * @param string $destination_property + * The destination property currently worked on. This is only used together + * with the $row above. + * + * @return string|array + * The newly transformed value. + */ + public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property); + + /** + * Indicates whether the returned value requires multiple handling. + * + * @return bool + * TRUE when the returned value contains a list of values to be processed. + * For example, when the 'source' property is a string and the value found + * is an array. + */ + public function multiple(); + +}