Chris@0: <?php
Chris@0: 
Chris@0: /**
Chris@0:  * @file
Chris@0:  * Provide views data for image.module.
Chris@0:  */
Chris@0: 
Chris@0: use Drupal\field\FieldStorageConfigInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Implements hook_field_views_data().
Chris@0:  *
Chris@0:  * Views integration for image fields. Adds an image relationship to the default
Chris@0:  * field data.
Chris@0:  *
Chris@0:  * @see views_field_default_views_data()
Chris@0:  */
Chris@0: function image_field_views_data(FieldStorageConfigInterface $field_storage) {
Chris@0:   $data = views_field_default_views_data($field_storage);
Chris@0:   foreach ($data as $table_name => $table_data) {
Chris@0:     // Add the relationship only on the target_id field.
Chris@0:     $data[$table_name][$field_storage->getName() . '_target_id']['relationship'] = [
Chris@0:       'id' => 'standard',
Chris@0:       'base' => 'file_managed',
Chris@0:       'entity type' => 'file',
Chris@0:       'base field' => 'fid',
Chris@0:       'label' => t('image from @field_name', ['@field_name' => $field_storage->getName()]),
Chris@0:     ];
Chris@0:   }
Chris@0: 
Chris@0:   return $data;
Chris@0: }
Chris@0: 
Chris@0: /**
Chris@0:  * Implements hook_field_views_data_views_data_alter().
Chris@0:  *
Chris@0:  * Views integration to provide reverse relationships on image fields.
Chris@0:  */
Chris@0: function image_field_views_data_views_data_alter(array &$data, FieldStorageConfigInterface $field_storage) {
Chris@0:   $entity_type_id = $field_storage->getTargetEntityTypeId();
Chris@0:   $field_name = $field_storage->getName();
Chris@0:   $entity_manager = \Drupal::entityManager();
Chris@0:   $entity_type = $entity_manager->getDefinition($entity_type_id);
Chris@0:   $pseudo_field_name = 'reverse_' . $field_name . '_' . $entity_type_id;
Chris@0:   /** @var \Drupal\Core\Entity\Sql\DefaultTableMapping $table_mapping */
Chris@0:   $table_mapping = $entity_manager->getStorage($entity_type_id)->getTableMapping();
Chris@0: 
Chris@0:   list($label) = views_entity_field_label($entity_type_id, $field_name);
Chris@0: 
Chris@0:   $data['file_managed'][$pseudo_field_name]['relationship'] = [
Chris@0:     'title' => t('@entity using @field', ['@entity' => $entity_type->getLabel(), '@field' => $label]),
Chris@0:     'label' => t('@field_name', ['@field_name' => $field_name]),
Chris@0:     'help' => t('Relate each @entity with a @field set to the image.', ['@entity' => $entity_type->getLabel(), '@field' => $label]),
Chris@0:     'group' => $entity_type->getLabel(),
Chris@0:     'id' => 'entity_reverse',
Chris@0:     'base' => $entity_type->getDataTable() ?: $entity_type->getBaseTable(),
Chris@0:     'entity_type' => $entity_type_id,
Chris@0:     'base field' => $entity_type->getKey('id'),
Chris@0:     'field_name' => $field_name,
Chris@0:     'field table' => $table_mapping->getDedicatedDataTableName($field_storage),
Chris@0:     'field field' => $field_name . '_target_id',
Chris@0:     'join_extra' => [
Chris@0:       0 => [
Chris@0:         'field' => 'deleted',
Chris@0:         'value' => 0,
Chris@0:         'numeric' => TRUE,
Chris@0:       ],
Chris@0:     ],
Chris@0:   ];
Chris@0: }