95 lines
3.8 KiB
Plaintext
95 lines
3.8 KiB
Plaintext
<?php
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/**
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* @file
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* Provides migration from other Drupal sites.
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*/
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use Drupal\Core\Url;
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use Drupal\Core\Database\DatabaseExceptionWrapper;
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use Drupal\Core\Routing\RouteMatchInterface;
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use Drupal\migrate\Exception\RequirementsException;
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use Drupal\migrate\MigrateExecutable;
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use Drupal\migrate\Plugin\RequirementsInterface;
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/**
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* Implements hook_help().
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*/
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function migrate_drupal_help($route_name, RouteMatchInterface $route_match) {
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switch ($route_name) {
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case 'help.page.migrate_drupal':
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$output = '';
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$output .= '<h3>' . t('About') . '</h3>';
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$output .= '<p>' . t('The Migrate Drupal module provides a framework based on the <a href=":migrate">Migrate module</a> to facilitate migration from a Drupal (6, 7, or 8) site to your website. It does not provide a user interface. For more information, see the <a href=":migrate_drupal">online documentation for the Migrate Drupal module</a>.', [':migrate' => Url::fromRoute('help.page', ['name' => 'migrate'])->toString(), ':migrate_drupal' => 'https://www.drupal.org/documentation/modules/migrate_drupal']) . '</p>';
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return $output;
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}
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}
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/**
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* Implements hook_migration_plugins_alter().
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*/
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function migrate_drupal_migration_plugins_alter(&$definitions) {
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// This is why the deriver can't do this: the 'd6_taxonomy_vocabulary'
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// definition is not available to the deriver as it is running inside
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// getDefinitions().
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if (isset($definitions['d6_taxonomy_vocabulary'])) {
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$vocabulary_migration_definition = [
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'source' => [
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'ignore_map' => TRUE,
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'plugin' => 'd6_taxonomy_vocabulary',
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],
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'destination' => [
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'plugin' => 'null',
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],
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'idMap' => [
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'plugin' => 'null',
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],
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];
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$vocabulary_migration = \Drupal::service('plugin.manager.migration')->createStubMigration($vocabulary_migration_definition);
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$translation_active = \Drupal::service('module_handler')->moduleExists('config_translation');
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try {
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$source_plugin = $vocabulary_migration->getSourcePlugin();
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if ($source_plugin instanceof RequirementsInterface) {
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$source_plugin->checkRequirements();
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}
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$executable = new MigrateExecutable($vocabulary_migration);
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$process = ['vid' => $definitions['d6_taxonomy_vocabulary']['process']['vid']];
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foreach ($source_plugin as $row) {
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$executable->processRow($row, $process);
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$source_vid = $row->getSourceProperty('vid');
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$plugin_ids = [
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'd6_term_node:' . $source_vid,
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'd6_term_node_revision:' . $source_vid,
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];
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if ($translation_active) {
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$plugin_ids[] = 'd6_term_node_translation:' . $source_vid;
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}
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foreach ($plugin_ids as $plugin_id) {
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// Match the field name derivation in d6_vocabulary_field.yml.
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$field_name = substr('field_' . $row->getDestinationProperty('vid'), 0, 32);
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// The Forum module is expecting 'taxonomy_forums' as the field name
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// for the forum nodes. The 'forum_vocabulary' source property is
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// evaluated in Drupal\taxonomy\Plugin\migrate\source\d6\Vocabulary
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// and is set to true if the vocabulary vid being migrated is the
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// same as the one in the 'forum_nav_vocabulary' variable on the
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// source site.
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$destination_vid = $row->getSourceProperty('forum_vocabulary') ? 'taxonomy_forums' : $field_name;
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$definitions[$plugin_id]['process'][$destination_vid] = 'tid';
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}
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}
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}
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catch (RequirementsException $e) {
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// This code currently runs whenever the definitions are being loaded and
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// if you have a Drupal 7 source site then the requirements will not be
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// met for the d6_taxonomy_vocabulary migration.
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}
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catch (DatabaseExceptionWrapper $e) {
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// When the definitions are loaded it is possible the tables will not
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// exist.
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}
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}
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}
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