public ComplexDataDefinitionInterface::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/TypedData/ComplexDataDefinitionInterface.php, line 44
Class
- ComplexDataDefinitionInterface
- Interface for complex data definitions.
Namespace
Drupal\Core\TypedData
Code
public function getMainPropertyName();
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