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/Drupal 8

public function BaseFieldDefinition::setDefaultValueCallback

public BaseFieldDefinition::setDefaultValueCallback($callback)

File

core/lib/Drupal/Core/Field/BaseFieldDefinition.php, line 498

Class

BaseFieldDefinition
A class for defining entity fields.

Namespace

Drupal\Core\Field

Code

public function setDefaultValueCallback($callback) {
  if (isset($callback) && !is_string($callback)) {
    throw new \InvalidArgumentException('Default value callback must be a string, like "function_name" or "ClassName::methodName"');
  }
  $this->definition['default_value_callback'] = $callback;
  return $this;
}

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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Field!BaseFieldDefinition.php/function/BaseFieldDefinition::setDefaultValueCallback/8.1.x