start_sf5_project/app/src/Repository/PostRepository.php

98 lines
2.7 KiB
PHP

<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace App\Repository;
use App\Entity\Post;
use App\Entity\Tag;
use App\Pagination\Paginator;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Doctrine\Persistence\ManagerRegistry;
use function Symfony\Component\String\u;
/**
* This custom Doctrine repository contains some methods which are useful when
* querying for blog post information.
*
* See https://symfony.com/doc/current/doctrine.html#querying-for-objects-the-repository
*
* @author Ryan Weaver <weaverryan@gmail.com>
* @author Javier Eguiluz <javier.eguiluz@gmail.com>
* @author Yonel Ceruto <yonelceruto@gmail.com>
*/
class PostRepository extends ServiceEntityRepository
{
public function __construct(ManagerRegistry $registry)
{
parent::__construct($registry, Post::class);
}
public function findLatest(int $page = 1, Tag $tag = null): Paginator
{
$qb = $this->createQueryBuilder('p')
->addSelect('a', 't')
->innerJoin('p.author', 'a')
->leftJoin('p.tags', 't')
->where('p.publishedAt <= :now')
->orderBy('p.publishedAt', 'DESC')
->setParameter('now', new \DateTime())
;
if (null !== $tag) {
$qb->andWhere(':tag MEMBER OF p.tags')
->setParameter('tag', $tag);
}
return (new Paginator($qb))->paginate($page);
}
/**
* @return Post[]
*/
public function findBySearchQuery(string $query, int $limit = Paginator::PAGE_SIZE): array
{
$searchTerms = $this->extractSearchTerms($query);
if (0 === \count($searchTerms)) {
return [];
}
$queryBuilder = $this->createQueryBuilder('p');
foreach ($searchTerms as $key => $term) {
$queryBuilder
->orWhere('p.title LIKE :t_'.$key)
->setParameter('t_'.$key, '%'.$term.'%')
;
}
return $queryBuilder
->orderBy('p.publishedAt', 'DESC')
->setMaxResults($limit)
->getQuery()
->getResult();
}
/**
* Transforms the search string into an array of search terms.
*/
private function extractSearchTerms(string $searchQuery): array
{
$searchQuery = u($searchQuery)->replaceMatches('/[[:space:]]+/', ' ')->trim();
$terms = array_unique($searchQuery->split(' '));
// ignore the search terms that are too short
return array_filter($terms, function ($term) {
return 2 <= $term->length();
});
}
}