public static function PluginCollectionItemBase::mainPropertyName in Plugin 8.2

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

1 call to PluginCollectionItemBase::mainPropertyName()

PluginCollectionItemBase::__isset in src/Plugin/Field/FieldType/PluginCollectionItemBase.php

Magic method: Determines whether a property is set.

File

src/Plugin/Field/FieldType/PluginCollectionItemBase.php, line 132

Class

PluginCollectionItemBase

Provides a base for plugin collection field items.

Namespace

Drupal\plugin\Plugin\Field\FieldType

Code

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