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<?php |
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/* For licensing terms, see /license.txt */ |
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declare(strict_types=1); |
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namespace Chamilo\CoreBundle\Repository; |
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use Chamilo\CoreBundle\Entity\Course; |
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use Chamilo\CoreBundle\Entity\Session; |
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use Chamilo\CoreBundle\Entity\UserRelCourseVote; |
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use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository; |
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use Doctrine\DBAL\ParameterType; |
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use Doctrine\ORM\NonUniqueResultException; |
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use Doctrine\ORM\NoResultException; |
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use Doctrine\Persistence\ManagerRegistry; |
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/** |
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* @extends ServiceEntityRepository<UserRelCourseVote> |
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*/ |
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class UserRelCourseVoteRepository extends ServiceEntityRepository |
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{ |
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public function __construct(ManagerRegistry $registry) |
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{ |
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parent::__construct($registry, UserRelCourseVote::class); |
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} |
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/** |
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* Retrieves the average vote and the count of votes for a specific course. |
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* |
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* @return array The first element of the array is the average vote (rounded to 2 decimal places), |
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* and the second element is the count of votes. |
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*/ |
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public function getCouseRating(Course $course, ?Session $session = null): array |
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{ |
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$qb = $this->createQueryBuilder('v'); |
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$qb |
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->select([ |
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$qb->expr()->avg('v.vote'), |
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$qb->expr()->count('v.id') |
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]) |
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->where($qb->expr()->eq('v.course', ':course')) |
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->setParameter('course', $course->getId(), ParameterType::INTEGER) |
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; |
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if ($session !== null) { |
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$qb |
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->andWhere($qb->expr()->eq('v.session', ':session')) |
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->setParameter('session', $session->getId(), ParameterType::INTEGER) |
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; |
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} else { |
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$qb->andWhere($qb->expr()->isNull('v.session')); |
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} |
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try { |
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$result = $qb |
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->setMaxResults(1) |
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->getQuery() |
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->getSingleResult(); |
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} catch (NoResultException|NonUniqueResultException) { |
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$result = [1 => 0, 2 => 0]; |
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} |
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return [ |
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'average' => round((float) $result[1], 2), |
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'count' => $result[2] |
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]; |
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} |
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} |
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chamilo /
chamilo-lms
