Inlm\Mappers

Mappers for Lean Mapper.

Installation

Download a latest package or use Composer:

composer require inlm/mappers

Inlm\Mappers requires PHP 7.2.0 or later.

Usage

Mapper	Entity	Table	Column	Note
Inlm\Mappers\DefaultMapper	OrderItem	orderitem	customerName	only extends LeanMapper\DefaultMapper
Inlm\Mappers\CamelCaseMapper	OrderItem	orderItem	customerName	There is issue for MySQL on OS Windows.
Inlm\Mappers\UnderScoreMapper	OrderItem	order_item	customer_name
Inlm\Mappers\DynamicMapper	~	~	~	See below.
Inlm\Mappers\PrefixMapper	~	~	~	See below.
Inlm\Mappers\RowMapper	~	~	~	See below.
Inlm\Mappers\StiMapper	~	~	~	See below.

DynamicMapper

Dynamic mapper uses explicit mapping of entities and tables.

$mapper = new DynamicMapper;
$mapper->setMapping(
	'order_items', // table name - required
	'OrderItem', // entity class - optional
	'OrderItemRepository', // repository class - optional
	'item_id' // primary key - optional
);

If there's no mapping for entity or table, call is passed to fallback mapper (LeanMapper\DefaultMapper by default):

$mapper = new DynamicMapper;
$mapper->getTable('OrderItem'); // returns 'orderitem'

$mapper = new DynamicMapper(new Inlm\Mappers\UnderScoreMapper);
$mapper->getTable('OrderItem'); // returns 'order_item'

PrefixMapper

PrefixMapper adds & removes prefix from table names.

$mapper = new PrefixMapper('prefix_');
$mapper = new PrefixMapper('prefix_', $fallbackMapper);

PrefixMapper only processes prefixes in table names, everything else is given to fallback mapper (LeanMapper\DefaultMapper by default):

$mapper = new PrefixMapper('prefix_');
echo $mapper->getTable('OrderItem'); // prints 'prefix_orderitem'

$mapper = new PrefixMapper('prefix_', new Inlm\Mappers\UnderScoreMapper);
echo $mapper->getTable('OrderItem'); // prints 'prefix_order_item'

RowMapper

RowMapper maps values to / from LeanMapper\Row (requires Lean Mapper 3.5+).

$mapper = new RowMapper;
$mapper = new RowMapper($fallbackMapper);
$mapper->registerFieldMapping($entity, $field, $fromDbValue, $toDbValue);
$mapper->registerFieldMapping(
	Model\Entity\Client::class,
	'website',
	function ($dbValue) {
		return new Website($dbValue);
	},
	function (Website $rowValue) {
		return $rowValue->getUrl();
	}
);


// multi column mapping
$mapper->registerMultiValueMapping(
	Model\OrderItem::class,
	'price',
	function (array $values, $rowField) {
		return new Price($values[$rowField . '_total'], $values[$rowField . '_currency']);
	},
	function (Price $price, $rowField) {
		return [
			$rowField . '_total' => $price->getPrice(),
			$rowField . '_currency' => $price->getCurrency(),
		];
	}
);

StiMapper

StiMapper simplifies working with Single Table Inheritance.

$mapper = new StiMapper;
$mapper = new StiMapper($fallbackMapper);

Registration of STI types:

$mapper->registerStiType($baseEntity, $typeValue, $entityClass);
$mapper->registerStiType(Entities\Client::class, 'company', Entities\ClientCompany::class);
$mapper->registerStiType(Entities\Client::class, 'individual', Entities\ClientIndividual::class);

Default STI type column is named type, you can change it with:

$mapper->registerTypeField(Entities\Client::class, 'clientType');

You can limit LeanMapper\Fluent for specific STI type:

$fluent = $connection->select('*')->from('client');
$mapper->applyStiMapping($fluent, Entities\ClientCompany::class);
echo $fluent; // SELECT * FROM `client` WHERE `client`.`clientType` = 'company'

How change default entity namespace

$mapper = new Inlm\Mappers\DefaultMapper('App\Entity');
$mapper = new Inlm\Mappers\CamelCaseMapper('App\Entity');
$mapper = new Inlm\Mappers\UnderScoreMapper('App\Entity');

Recommended order of mappers

• RowMapper
• StiMapper
• PrefixMapper
• DynamicMapper
• DefaultMapper / CamelCaseMapper / UnderScoreMapper

---

License: New BSD License
Author: Jan Pecha, https://www.janpecha.cz/