Updated Drupal to 8.6. This goes with the following updates because it's possible...

[yaffs-website] / web / core / modules / menu_link_content / src / Plugin / migrate / source / d6 / MenuLinkTranslation.php

diff --git a/web/core/modules/menu_link_content/src/Plugin/migrate/source/d6/MenuLinkTranslation.php b/web/core/modules/menu_link_content/src/Plugin/migrate/source/d6/MenuLinkTranslation.php
new file mode 100644 (file)
index 0000000..983c315
--- /dev/null
+++ b/web/core/modules/menu_link_content/src/Plugin/migrate/source/d6/MenuLinkTranslation.php
@@ -0,0 +1,92 @@
+<?php
+
+namespace Drupal\menu_link_content\Plugin\migrate\source\d6;
+
+use Drupal\content_translation\Plugin\migrate\source\I18nQueryTrait;
+use Drupal\migrate\Row;
+use Drupal\menu_link_content\Plugin\migrate\source\MenuLink;
+
+/**
+ * Gets Menu link translations from source database.
+ *
+ * @MigrateSource(
+ *   id = "d6_menu_link_translation",
+ *   source_module = "i18nmenu"
+ * )
+ */
+class MenuLinkTranslation extends MenuLink {
+
+  use I18nQueryTrait;
+
+  /**
+   * Drupal 6 table names.
+   */
+  const I18N_STRING_TABLE = 'i18n_strings';
+
+  /**
+   * {@inheritdoc}
+   */
+  public function query() {
+    // Ideally, the query would return rows for each language for each menu link
+    // with the translations for both the title and description or just the
+    // title translation or just the description translation. That query quickly
+    // became complex and would be difficult to maintain.
+    // Therefore, build a query based on i18nstrings table where each row has
+    // the translation for only one property, either title or description. The
+    // method prepareRow() is then used to obtain the translation for the other
+    // property.
+    // The query starts with the same query as menu_link.
+    $query = parent::query();
+
+    // Add in the property, which is either title or description. Cast the mlid
+    // to text so PostgreSQL can make the join.
+    $query->leftJoin(static::I18N_STRING_TABLE, 'i18n', 'CAST(ml.mlid as CHAR(255)) = i18n.objectid');
+    $query->isNotNull('i18n.lid');
+    $query->addField('i18n', 'lid');
+    $query->addField('i18n', 'property');
+
+    // Add in the translation for the property.
+    $query->innerJoin('locales_target', 'lt', 'i18n.lid = lt.lid');
+    $query->addField('lt', 'language');
+    $query->addField('lt', 'translation');
+    return $query;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function prepareRow(Row $row) {
+    parent::prepareRow($row);
+
+    // Save the translation for this property.
+    $property_in_row = $row->getSourceProperty('property');
+
+    // Set the i18n string table for use in I18nQueryTrait.
+    $this->i18nStringTable = static::I18N_STRING_TABLE;
+    // Get the translation for the property not already in the row and save it
+    // in the row.
+    $property_not_in_row = ($property_in_row == 'title') ? 'description' : 'title';
+    return $this->getPropertyNotInRowTranslation($row, $property_not_in_row, 'mlid', $this->idMap);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function fields() {
+    $fields = [
+      'language' => $this->t('Language for this menu.'),
+      'title_translated' => $this->t('Menu link title translation.'),
+      'description_translated' => $this->t('Menu link description translation.'),
+    ];
+    return parent::fields() + $fields;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getIds() {
+    $ids['language']['type'] = 'string';
+    return parent::getIds() + $ids;
+  }
+
+}