Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\taxonomy;
Chris@0: 
Chris@0: use Drupal\Core\Entity\ContentEntityTypeInterface;
Chris@0: use Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema;
Chris@0: use Drupal\Core\Field\FieldStorageDefinitionInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Defines the term schema handler.
Chris@0:  */
Chris@0: class TermStorageSchema extends SqlContentEntityStorageSchema {
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   protected function getEntitySchema(ContentEntityTypeInterface $entity_type, $reset = FALSE) {
Chris@17:     $schema = parent::getEntitySchema($entity_type, $reset);
Chris@0: 
Chris@17:     if ($data_table = $this->storage->getDataTable()) {
Chris@17:       $schema[$data_table]['indexes'] += [
Chris@17:         'taxonomy_term__tree' => ['vid', 'weight', 'name'],
Chris@17:         'taxonomy_term__vid_name' => ['vid', 'name'],
Chris@17:       ];
Chris@17:     }
Chris@0: 
Chris@0:     $schema['taxonomy_index'] = [
Chris@0:       'description' => 'Maintains denormalized information about node/term relationships.',
Chris@0:       'fields' => [
Chris@0:         'nid' => [
Chris@0:           'description' => 'The {node}.nid this record tracks.',
Chris@0:           'type' => 'int',
Chris@0:           'unsigned' => TRUE,
Chris@0:           'not null' => TRUE,
Chris@0:           'default' => 0,
Chris@0:         ],
Chris@0:         'tid' => [
Chris@0:           'description' => 'The term ID.',
Chris@0:           'type' => 'int',
Chris@0:           'unsigned' => TRUE,
Chris@0:           'not null' => TRUE,
Chris@0:           'default' => 0,
Chris@0:         ],
Chris@0:         'status' => [
Chris@0:           'description' => 'Boolean indicating whether the node is published (visible to non-administrators).',
Chris@0:           'type' => 'int',
Chris@0:           'not null' => TRUE,
Chris@0:           'default' => 1,
Chris@0:         ],
Chris@0:         'sticky' => [
Chris@0:           'description' => 'Boolean indicating whether the node is sticky.',
Chris@0:           'type' => 'int',
Chris@0:           'not null' => FALSE,
Chris@0:           'default' => 0,
Chris@0:           'size' => 'tiny',
Chris@0:         ],
Chris@0:         'created' => [
Chris@0:           'description' => 'The Unix timestamp when the node was created.',
Chris@0:           'type' => 'int',
Chris@0:           'not null' => TRUE,
Chris@0:           'default' => 0,
Chris@0:         ],
Chris@0:       ],
Chris@0:       'primary key' => ['nid', 'tid'],
Chris@0:       'indexes' => [
Chris@0:         'term_node' => ['tid', 'status', 'sticky', 'created'],
Chris@0:       ],
Chris@0:       'foreign keys' => [
Chris@0:         'tracked_node' => [
Chris@0:           'table' => 'node',
Chris@0:           'columns' => ['nid' => 'nid'],
Chris@0:         ],
Chris@0:         'term' => [
Chris@0:           'table' => 'taxonomy_term_data',
Chris@0:           'columns' => ['tid' => 'tid'],
Chris@0:         ],
Chris@0:       ],
Chris@0:     ];
Chris@0: 
Chris@0:     return $schema;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   protected function getSharedTableFieldSchema(FieldStorageDefinitionInterface $storage_definition, $table_name, array $column_mapping) {
Chris@0:     $schema = parent::getSharedTableFieldSchema($storage_definition, $table_name, $column_mapping);
Chris@0:     $field_name = $storage_definition->getName();
Chris@0: 
Chris@0:     if ($table_name == 'taxonomy_term_field_data') {
Chris@0:       // Remove unneeded indexes.
Chris@0:       unset($schema['indexes']['taxonomy_term_field__vid__target_id']);
Chris@0:       unset($schema['indexes']['taxonomy_term_field__description__format']);
Chris@0: 
Chris@0:       switch ($field_name) {
Chris@0:         case 'weight':
Chris@0:           // Improves the performance of the taxonomy_term__tree index defined
Chris@0:           // in getEntitySchema().
Chris@0:           $schema['fields'][$field_name]['not null'] = TRUE;
Chris@0:           break;
Chris@0: 
Chris@0:         case 'name':
Chris@0:           $this->addSharedTableFieldIndex($storage_definition, $schema, TRUE);
Chris@0:           break;
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     return $schema;
Chris@0:   }
Chris@0: 
Chris@18:   /**
Chris@18:    * {@inheritdoc}
Chris@18:    */
Chris@18:   protected function getDedicatedTableSchema(FieldStorageDefinitionInterface $storage_definition, ContentEntityTypeInterface $entity_type = NULL) {
Chris@18:     $dedicated_table_schema = parent::getDedicatedTableSchema($storage_definition, $entity_type);
Chris@18: 
Chris@18:     // Add an index on 'bundle', 'delta' and 'parent_target_id' columns to
Chris@18:     // increase the performance of the query from
Chris@18:     // \Drupal\taxonomy\TermStorage::getVocabularyHierarchyType().
Chris@18:     if ($storage_definition->getName() === 'parent') {
Chris@18:       /** @var \Drupal\Core\Entity\Sql\DefaultTableMapping $table_mapping */
Chris@18:       $table_mapping = $this->storage->getTableMapping();
Chris@18:       $dedicated_table_name = $table_mapping->getDedicatedDataTableName($storage_definition);
Chris@18: 
Chris@18:       unset($dedicated_table_schema[$dedicated_table_name]['indexes']['bundle']);
Chris@18:       $dedicated_table_schema[$dedicated_table_name]['indexes']['bundle_delta_target_id'] = [
Chris@18:         'bundle',
Chris@18:         'delta',
Chris@18:         $table_mapping->getFieldColumnName($storage_definition, 'target_id'),
Chris@18:       ];
Chris@18:     }
Chris@18: 
Chris@18:     return $dedicated_table_schema;
Chris@18:   }
Chris@18: 
Chris@0: }