function Book::fields

Returns available fields on the source.

Return value

array Available fields in the source, keys are the field machine names as used in field mappings, values are descriptions.

Overrides MigrateSourceInterface::fields

File

core/modules/book/src/Plugin/migrate/source/Book.php, line 51

Class

Book

Drupal 6/7 book source from database.

Namespace

Code

public function fields() {
  return [
    'nid' => $this->t('Node ID'),
    'bid' => $this->t('Book ID'),
    'mlid' => $this->t('Menu link ID'),
    'plid' => $this->t('Parent link ID'),
    'weight' => $this->t('Weight'),
    'p1' => $this->t('The first mlid in the materialized path. If N = depth, then pN must equal the mlid. If depth > 1 then p(N-1) must equal the parent link mlid. All pX where X > depth must equal zero. The columns p1 .. p9 are also called the parents.'),
    'p2' => $this->t('The second mlid in the materialized path. See p1.'),
    'p3' => $this->t('The third mlid in the materialized path. See p1.'),
    'p4' => $this->t('The fourth mlid in the materialized path. See p1.'),
    'p5' => $this->t('The fifth mlid in the materialized path. See p1.'),
    'p6' => $this->t('The sixth mlid in the materialized path. See p1.'),
    'p7' => $this->t('The seventh mlid in the materialized path. See p1.'),
    'p8' => $this->t('The eighth mlid in the materialized path. See p1.'),
    'p9' => $this->t('The ninth mlid in the materialized path. See p1.'),
  ];
}