app/bundles/LeadBundle/Entity/LeadCategoryRepository.php

<?php

namespace Mautic\LeadBundle\Entity;

use Mautic\CoreBundle\Entity\CommonRepository;

/**
 * @extends CommonRepository<LeadCategory>
 */
class LeadCategoryRepository extends CommonRepository
{
    /**
     * @return array<mixed, array<string, mixed>>
     */
    public function getLeadCategories(Lead $lead): array
    {
        $q = $this->_em->getConnection()->createQueryBuilder()
            ->select('lc.id, lc.category_id, lc.date_added, lc.manually_added, lc.manually_removed, c.alias, c.title')
            ->from(MAUTIC_TABLE_PREFIX.'lead_categories', 'lc')
            ->join('lc', MAUTIC_TABLE_PREFIX.'categories', 'c', 'c.id = lc.category_id')
            ->where('lc.lead_id = :lead')
            ->andWhere('lc.manually_removed = 0')
            ->setParameter('lead', $lead->getId());

        $results = $q->executeQuery()
            ->fetchAllAssociative();

        $categories = [];
        foreach ($results as $category) {
            $categories[$category['category_id']] = $category;
        }

        return $categories;
    }

    /**
     * @return mixed[]
     */
    public function getUnsubscribedLeadCategories(Lead $lead): array
    {
        $q = $this->_em->getConnection()->createQueryBuilder()
            ->select('lc.id, lc.category_id, lc.date_added, lc.manually_added, lc.manually_removed, c.alias, c.title')
            ->from(MAUTIC_TABLE_PREFIX.'lead_categories', 'lc')
            ->join('lc', MAUTIC_TABLE_PREFIX.'categories', 'c', 'c.id = lc.category_id')
            ->where('lc.lead_id = :lead')
            ->andWhere('lc.manually_removed = 1')
            ->setParameter('lead', $lead->getId());

        $results = $q->executeQuery()->fetchAllAssociative();

        $categories = [];
        foreach ($results as $category) {
            $categories[$category['category_id']] = $category;
        }

        return $categories;
    }
}