add search engine

src/Repository/Blog/PostRepositoryQuery.php

@@ -4,7 +4,6 @@ namespace App\Repository\Blog;
 
 use App\Core\Repository\RepositoryQuery;
 use App\Entity\Blog\Category;
-use App\Entity\User;
 use Knp\Component\Pager\PaginatorInterface;
 
 /**
@@ -37,13 +36,14 @@ class PostRepositoryQuery extends RepositoryQuery
         return $this
             ->andWhere('.status = 1')
             ->andWhere('.publishedAt <= :now')
-            ->setParameter(':now', (new \DateTime('now'))->format('Y-m-d H:i:s'));
+            ->setParameter(':now', (new \DateTime('now'))->format('Y-m-d H:i:s'))
+        ;
     }
 
     public function useFilters(array $filters)
     {
         foreach ($filters as $name => $value) {
-            if ($value === null) {
+            if (null === $value) {
                 continue;
             }
 
@@ -54,7 +54,7 @@ class PostRepositoryQuery extends RepositoryQuery
                 $this->andWhere('.'.$name.' LIKE :'.$name);
                 $this->setParameter(':'.$name, '%'.$value.'%');
             } else {
-                if ($name === 'category') {
+                if ('category' === $name) {
                     $this->inCategory($value);
                 }
             }
@@ -62,4 +62,60 @@ class PostRepositoryQuery extends RepositoryQuery
 
         return $this;
     }
+
+    public function search(string $keywords)
+    {
+        $conn = $this->repository->getEm()->getConnection();
+
+        $statement = $conn->prepare(
+            'SELECT
+                post.id,
+                post.title,
+                MATCH(post.title) AGAINST(:search) AS MATCH_TITLE,
+                MATCH(post.content) AGAINST(:search) AS MATCH_CONTENT
+            FROM post
+            WHERE
+                post.status = 1 AND
+                post.published_at < :date
+            ORDER BY
+                MATCH_TITLE DESC,
+                MATCH_CONTENT DESC
+        ');
+
+        $statement->execute([
+            ':search' => $keywords,
+            ':date' => (new \DateTime())->format('Y-m-d H:i:s'),
+        ]);
+
+        $results = $statement->fetchAll();
+        $ids = [];
+
+        foreach ($results as $k => $v) {
+            $rate = ($v['MATCH_TITLE'] * 2) + $v['MATCH_CONTENT'];
+
+            if ($rate >= 7) {
+                $ids[] = $v['id'];
+            }
+        }
+
+        if (0 == count($ids)) {
+            foreach ($results as $k => $v) {
+                $rate = ($v['MATCH_TITLE'] * 2) + $v['MATCH_CONTENT'];
+
+                if ($rate >= 6) {
+                    $ids[] = $v['id'];
+                }
+            }
+        }
+
+        if (!$ids) {
+            $ids = [-1];
+        }
+
+        return $this
+            ->orderBy('FIELD(p.id, :ids)')
+            ->andWhere('.id IN(:ids)')
+            ->setParameter(':ids', $ids)
+        ;
+    }
 }