use Nette\DI\CompilerExtension;
use JP\LeanMapperExtension\IEntityProvider;

class FooExtension extends CompilerExtension implements IEntityProvider
{
	// from IEntityProvider
	function getEntityMappings()
	{
		return array(
			array(
				'table' => 'foo_articles',
				'primaryKey' => 'id',
				'entity' => Foo\Model\Article::class,
				'repository' => Foo\Model\ArticleRepository::class, # only mapping, you need manually register repository to DI
			),
			// ...
		);
	}
}

use Nette\DI\CompilerExtension;
use JP\LeanMapperExtension\IStiMappingProvider;

class FooExtension extends CompilerExtension implements IStiMappingProvider
{
	function getStiMappings()
	{
		return [
			Model\Entity\Client::class => [ // base entity
				// type => target entity
				'company' => Model\Entity\ClientCompany::class,
			],
			// ...
		];
	}


	function getStiTypeFields()
	{
		return [
			Model\Entity\Client::class => 'clientType',
		];
	}
}

use Nette\DI\CompilerExtension;
use JP\LeanMapperExtension\IRowMappingProvider;

class FooExtension extends CompilerExtension implements IRowMappingProvider
{
	function getRowFieldMappings()
	{
		return [
			\Model\Entity\OrderItem::class => [
				'currency' => [
					'fromDbValue' => [static::class, 'currencyFromDb'],
					'toDbValue' => [static::class, 'currencyToDb'],
				]
			],
			// ...
		];
	}


	function getRowMultiValueMappings()
	{
		return [
			\Model\Entity\OrderItem::class => [
				'price' => [
					'fromDbValue' => [static::class, 'priceFromDb'],
					'toDbValue' => [static::class, 'priceToDb'],
				],
			],
		];
	}


	static function currencyFromDb($value)
	{
		return strtoupper($value);
	}


	static function currencyToDb($value)
	{
		return strtolower($value);
	}


	static function priceFromDb(array $values)
	{
		return [$values['price'], $values['currency']];
	}


	static function priceToDb($value)
	{
		return [
			'price' => $value[0],
		];
	}
}