public FieldStorageDefinitionInterface::getMainPropertyName()
Returns the name of the main property, if any.
Some field items consist mainly of one main property, e.g. the value of a text field or the
target_id
of an entity reference. If the field item has no main property, the method returns NULL.
Return value
string|null The name of the value property, or NULL if there is none.
File
- core/lib/Drupal/Core/Field/FieldStorageDefinitionInterface.php, line 213
Class
- FieldStorageDefinitionInterface
- Defines an interface for entity field storage definitions.
Namespace
Drupal\Core\Field
Code
public function getMainPropertyName();
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