Code Reference Map
When to Use
Use this reference to locate key taxonomy classes, methods, and files in the Drupal codebase.
Key Classes & Files
Entity Classes
| Class |
Path |
Purpose |
| Vocabulary |
/core/modules/taxonomy/src/Entity/Vocabulary.php |
Config entity for vocabularies (lines 74-196) |
| Term |
/core/modules/taxonomy/src/Entity/Term.php |
Content entity for taxonomy terms (lines 97-299) |
Storage & Queries
| Class |
Path |
Key Methods |
| TermStorage |
/core/modules/taxonomy/src/TermStorage.php |
loadTree() (208-303), loadParents() (93-106), loadChildren() (184-203), loadAllParents() (150-179), getVocabularyHierarchyType() (398-430) |
| TermStorageInterface |
/core/modules/taxonomy/src/TermStorageInterface.php |
Interface defining term storage methods |
Access Control
| Class |
Path |
Key Methods |
| TermAccessControlHandler |
/core/modules/taxonomy/src/TermAccessControlHandler.php |
checkAccess() (20-72), checkCreateAccess() (77-79) |
| TaxonomyPermissions |
/core/modules/taxonomy/src/TaxonomyPermissions.php |
buildPermissions() (64-82) — generates per-vocabulary permissions |
| Class |
Path |
Purpose |
| VocabularyForm |
/core/modules/taxonomy/src/VocabularyForm.php |
Vocabulary edit form |
| TermForm |
/core/modules/taxonomy/src/TermForm.php |
Term edit form |
| OverviewTerms |
/core/modules/taxonomy/src/Form/OverviewTerms.php |
Draggable term overview with weight management |
Views Integration
| Plugin |
Path |
Purpose |
| TaxonomyIndexTid (filter) |
/core/modules/taxonomy/src/Plugin/views/filter/TaxonomyIndexTid.php |
Exposed filter for taxonomy terms (lines 22-450) |
| Taxonomy (argument) |
/core/modules/taxonomy/src/Plugin/views/argument/Taxonomy.php |
Contextual filter for term pages (lines 13-16) |
| NodeTermData (relationship) |
/core/modules/taxonomy/src/Plugin/views/relationship/NodeTermData.php |
Relationship from nodes to terms via taxonomy_index |
Config & Schema
| File |
Path |
Purpose |
| taxonomy.schema.yml |
/core/modules/taxonomy/config/schema/taxonomy.schema.yml |
Config schema for vocabulary, settings (lines 3-56) |
| taxonomy.vocabulary.tags.yml |
/core/recipes/tags_taxonomy/config/taxonomy.vocabulary.tags.yml |
Example vocabulary config |
Recipes
| File |
Path |
Purpose |
| tags_taxonomy/recipe.yml |
/core/recipes/tags_taxonomy/recipe.yml |
Recipe for tags vocabulary |
| article_tags/recipe.yml |
/core/recipes/article_tags/recipe.yml |
Recipe for article tags field + displays |
See Also