FieldType::convertValue

public function convertValue($value, $toTypeClass)
{
	$typeClass = $this->typeClass;

	if ($this->isMultiple())
	{
		return $typeClass::convertValueMultiple($this, $value, $toTypeClass);
	}
	else
	{
		return $typeClass::convertValueSingle($this, $value, $toTypeClass);
	}
}