getCreatedAtColumn() public method

Get the name of the "created at" column.
public getCreatedAtColumn ( ) : string
return string
 /**
  * Get the name of the "created at" column.
  *
  * @return string
  */
 public function createdAt()
 {
     return $this->parent->getCreatedAtColumn();
 }
 protected function saneReadOnlyDefaultForField(Model $model, $fieldName)
 {
     return in_array($fieldName, [$model->getKeyName(), $model->getCreatedAtColumn(), $model->getUpdatedAtColumn()]);
 }