How to retrieve a term tree for a specific vocabulary given the machine name?

Question

Retrieving a term tree for a specific vocabulary in Drupal 8 requires the vocabulary ID. I can find no function/method/service that will return the vocabulary entity given the machine name, in order to get the vocabulary ID.

How do I get a vocabulary ID from its machine name?

Answer 1

vid is the vocabulary machine name, in Drupal 8. You just need to pass the the string you have to TermStorage::loadTree(), without changing it.

$terms = \Drupal::entityManager()->getStorage('taxonomy_term')->loadTree("myname");