public static function FieldItemBase::mainPropertyName

public static FieldItemBase::mainPropertyName()

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.

Overrides FieldItemInterface::mainPropertyName

See also

\Drupal\Core\Field\BaseFieldDefinition

File

core/lib/Drupal/Core/Field/FieldItemBase.php, line 39

Class

FieldItemBase

An entity field item.

Namespace

Drupal\Core\Field

Code

public static function mainPropertyName() {
  return 'value';
}