public static function MapItem::mainPropertyName in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/lib/Drupal/Core/Field/Plugin/Field/FieldType/MapItem.php \Drupal\Core\Field\Plugin\Field\FieldType\MapItem::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 FieldItemBase::mainPropertyName

See also

\Drupal\Core\Field\BaseFieldDefinition

File

core/lib/Drupal/Core/Field/Plugin/Field/FieldType/MapItem.php, line 109

Contains \Drupal\Core\Field\Plugin\Field\FieldType\MapItem.

Class

MapItem

Defines the 'map' entity field type.

Namespace

Drupal\Core\Field\Plugin\Field\FieldType

Code

public static function mainPropertyName() {

  // A map item has no main property.
  return NULL;
}