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<?php
namespace Faker\ORM\Propel2;
use Propel\Runtime\Propel;
use Propel\Runtime\ServiceContainer\ServiceContainerInterface;
/**
* Service class for populating a database using the Propel ORM.
* A Populator can populate several tables using ActiveRecord classes.
*/
class Populator
{
protected $generator;
protected $entities = [];
protected $quantities = [];
public function __construct(\Faker\Generator $generator)
{
$this->generator = $generator;
}
/**
* Add an order for the generation of $number records for $entity.
*
* @param mixed $entity A Propel ActiveRecord classname, or a \Faker\ORM\Propel2\EntityPopulator instance
* @param int $number The number of entities to populate
*/
public function addEntity($entity, $number, $customColumnFormatters = [], $customModifiers = [])
{
if (!$entity instanceof \Faker\ORM\Propel2\EntityPopulator) {
$entity = new \Faker\ORM\Propel2\EntityPopulator($entity);
}
$entity->setColumnFormatters($entity->guessColumnFormatters($this->generator));
if ($customColumnFormatters) {
$entity->mergeColumnFormattersWith($customColumnFormatters);
}
$entity->setModifiers($entity->guessModifiers($this->generator));
if ($customModifiers) {
$entity->mergeModifiersWith($customModifiers);
}
$class = $entity->getClass();
$this->entities[$class] = $entity;
$this->quantities[$class] = $number;
}
/**
* Populate the database using all the Entity classes previously added.
*
* @param PropelPDO $con A Propel connection object
*
* @return array A list of the inserted PKs
*/
public function execute($con = null)
{
if (null === $con) {
$con = $this->getConnection();
}
$isInstancePoolingEnabled = Propel::isInstancePoolingEnabled();
Propel::disableInstancePooling();
$insertedEntities = [];
$con->beginTransaction();
foreach ($this->quantities as $class => $number) {
for ($i = 0; $i < $number; ++$i) {
$insertedEntities[$class][] = $this->entities[$class]->execute($con, $insertedEntities);
}
}
$con->commit();
if ($isInstancePoolingEnabled) {
Propel::enableInstancePooling();
}
return $insertedEntities;
}
protected function getConnection()
{
// use the first connection available
$class = key($this->entities);
if (!$class) {
throw new \RuntimeException('No class found from entities. Did you add entities to the Populator ?');
}
$peer = $class::TABLE_MAP;
return Propel::getConnection($peer::DATABASE_NAME, ServiceContainerInterface::CONNECTION_WRITE);
}
}