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63 lines
1.9 KiB
PHP
63 lines
1.9 KiB
PHP
<?php
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namespace Drupal\farm_migrate\Plugin\migrate\process;
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use Drupal\migrate\Plugin\migrate\process\MigrationLookup;
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use Drupal\migrate\MigrateExecutableInterface;
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use Drupal\migrate\Row;
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/**
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* Looks up the value of a property based on a previous migration group.
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*
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* @MigrateProcessPlugin(
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* id = "farm_migration_group_lookup"
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* )
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*
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* This extends from the core migration_lookup process plugin, loads a list of
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* all migrations in the specified migration_group, then passes that to the
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* parent class, along with all other configuration keys.
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*
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* Example:
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*
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* @code
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* process:
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* uid:
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* plugin: farm_migration_group_lookup
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* migration_group: users
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* source: author
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* @endcode
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*
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* @todo Remove if migrate_plus incorporates this plugin upstream.
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* See: https://gitlab.com/drupalspoons/migrate_plus/-/issues/240
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*/
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class FarmMigrationGroupLookup extends MigrationLookup {
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/**
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* {@inheritdoc}
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*/
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public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property) {
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// Get the migration group ID from the process configuration.
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$lookup_migration_group_id = $this->configuration['migration_group'];
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// Load all migrations.
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$manager = \Drupal::service('plugin.manager.migration');
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$migrations = $manager->createInstances([]);
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// Filter by group.
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$group_migrations = [];
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foreach ($migrations as $id => $migration) {
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$definition = $migration->getPluginDefinition();
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if ($definition['migration_group'] == $lookup_migration_group_id) {
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$group_migrations[] = $id;
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}
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}
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// Set the migration configuration and delegate processing to the parent
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// MigrationLookup::transform() method.
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$this->configuration['migration'] = $group_migrations;
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return parent::transform($value, $migrate_executable, $row, $destination_property);
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}
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}
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