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<?php
namespace Faker\ORM\Spot;
use Spot\Locator;
/**
* Service class for populating a database using the Spot ORM.
*/
class Populator
{
protected $generator;
protected $locator;
protected $entities = [];
protected $quantities = [];
/**
* Populator constructor.
*/
public function __construct(\Faker\Generator $generator, Locator $locator = null)
{
$this->generator = $generator;
$this->locator = $locator;
}
/**
* Add an order for the generation of $number records for $entity.
*
* @param string $entityName Name of Entity object to generate
* @param int $number The number of entities to populate
* @param array $customColumnFormatters
* @param array $customModifiers
* @param bool $useExistingData Should we use existing rows (e.g. roles) to populate relations?
*/
public function addEntity(
$entityName,
$number,
$customColumnFormatters = [],
$customModifiers = [],
$useExistingData = false
) {
$mapper = $this->locator->mapper($entityName);
if (null === $mapper) {
throw new \InvalidArgumentException('No mapper can be found for entity ' . $entityName);
}
$entity = new EntityPopulator($mapper, $this->locator, $useExistingData);
$entity->setColumnFormatters($entity->guessColumnFormatters($this->generator));
if ($customColumnFormatters) {
$entity->mergeColumnFormattersWith($customColumnFormatters);
}
$entity->mergeModifiersWith($customModifiers);
$this->entities[$entityName] = $entity;
$this->quantities[$entityName] = $number;
}
/**
* Populate the database using all the Entity classes previously added.
*
* @param Locator $locator A Spot locator
*
* @return array A list of the inserted PKs
*/
public function execute($locator = null)
{
if (null === $locator) {
$locator = $this->locator;
}
if (null === $locator) {
throw new \InvalidArgumentException('No entity manager passed to Spot Populator.');
}
$insertedEntities = [];
foreach ($this->quantities as $entityName => $number) {
for ($i = 0; $i < $number; ++$i) {
$insertedEntities[$entityName][] = $this->entities[$entityName]->execute(
$insertedEntities
);
}
}
return $insertedEntities;
}
}