function taxonomy_update_8502
Copy hierarchy from {taxonomy_term_hierarchy} to {taxonomy_term__parent}.
File
-
core/
modules/ taxonomy/ taxonomy.install, line 61
Code
function taxonomy_update_8502(&$sandbox) {
$database = \Drupal::database();
if (!isset($sandbox['current'])) {
// Set batch ops sandbox.
$sandbox['current'] = 0;
$sandbox['tid'] = -1;
$sandbox['delta'] = 0;
$sandbox['limit'] = Settings::get('entity_update_batch_size', 50);
// Count records using a join, as there might be orphans in the hierarchy
// table. See https://www.drupal.org/project/drupal/issues/2997982.
$select = $database->select('taxonomy_term_hierarchy', 'h');
$select->join('taxonomy_term_data', 'd', 'h.tid = d.tid');
$sandbox['max'] = $select->countQuery()
->execute()
->fetchField();
}
// Save the hierarchy.
$select = $database->select('taxonomy_term_hierarchy', 'h');
$select->join('taxonomy_term_data', 'd', 'h.tid = d.tid');
$hierarchy = $select->fields('h', [
'tid',
'parent',
])
->fields('d', [
'vid',
'langcode',
])
->range($sandbox['current'], $sandbox['limit'])
->orderBy('tid', 'ASC')
->orderBy('parent', 'ASC')
->execute()
->fetchAll();
// Restore data.
$insert = $database->insert('taxonomy_term__parent')
->fields([
'bundle',
'entity_id',
'revision_id',
'langcode',
'delta',
'parent_target_id',
]);
foreach ($hierarchy as $row) {
if ($row->tid !== $sandbox['tid']) {
$sandbox['delta'] = 0;
$sandbox['tid'] = $row->tid;
}
$insert->values([
'bundle' => $row->vid,
'entity_id' => $row->tid,
'revision_id' => $row->tid,
'langcode' => $row->langcode,
'delta' => $sandbox['delta'],
'parent_target_id' => $row->parent,
]);
$sandbox['delta']++;
$sandbox['current']++;
}
$insert->execute();
$sandbox['#finished'] = empty($sandbox['max']) ? 1 : $sandbox['current'] / $sandbox['max'];
if ($sandbox['#finished'] >= 1) {
// Update the entity type because the 'taxonomy_term_hierarchy' table is no
// longer part of its shared tables schema.
$definition_update_manager = \Drupal::entityDefinitionUpdateManager();
$definition_update_manager->updateEntityType($definition_update_manager->getEntityType('taxonomy_term'));
// \Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema::onEntityTypeUpdate()
// only deletes *known* entity tables (i.e. the base, data and revision
// tables), so we have to drop it manually.
$database->schema()
->dropTable('taxonomy_term_hierarchy');
return t('Taxonomy term hierarchy has been converted to default entity reference storage.');
}
}
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