constant TAXONOMY_HIERARCHY_SINGLE

Denotes that one or more terms in the vocabulary has a single parent.

5 uses of TAXONOMY_HIERARCHY_SINGLE
forum_form_taxonomy_vocabulary_form_alter in drupal/core/modules/forum/forum.module
Implements hook_form_BASE_FORM_ID_alter().
taxonomy_check_vocabulary_hierarchy in drupal/core/modules/taxonomy/taxonomy.module
Checks and updates the hierarchy flag of a vocabulary.
taxonomy_help in drupal/core/modules/taxonomy/taxonomy.module
Implements hook_help().
taxonomy_overview_terms_submit in drupal/core/modules/taxonomy/taxonomy.admin.inc
Submit handler for terms overview form.
TermFormController::save in drupal/core/modules/taxonomy/lib/Drupal/taxonomy/TermFormController.php
Overrides Drupal\Core\Entity\EntityFormController::save().

File

drupal/core/modules/taxonomy/taxonomy.module, line 21
Enables the organization of content into categories.

Code

const TAXONOMY_HIERARCHY_SINGLE = 1;