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