add scroll feature

Author: alexkovt

src/ElasticEngine.php

@@ -279,6 +279,43 @@ public function searchRaw(Model $model, $query)
         return ElasticClient::search($payload);
     }
 
+    /**
+     * Make a raw search with scroll.
+     *
+     * @param \Illuminate\Database\Eloquent\Model $model
+     * @param $query
+     * @param $size
+     * @param $scroll
+     * @return mixed
+     * @throws \Exception
+     */
+    public function searchRawWithScroll(Model $model, $query, $size = 10000, string $scroll = '10s')
+    {
+        $payload = (new TypePayload($model))
+            ->setIfNotEmpty('body', $query)
+            ->set('scroll', $scroll)
+            ->set('size', $size)
+            ->set('sort', ['_doc'])
+            ->get();
+
+        return ElasticClient::search($payload);
+    }
+
+    /**
+     * Make a scroll.
+     *
+     * @param $scroll_id
+     * @param $scroll
+     * @return mixed
+     */
+    public function scroll(string $scroll_id, string $scroll = '10s')
+    {
+        return ElasticClient::scroll([
+            'scroll' => $scroll,
+            'scroll_id' => $scroll_id,
+        ]);
+    }
+
     /**
      * {@inheritdoc}
      */

src/Searchable.php

@@ -137,6 +137,37 @@ public static function searchRaw(array $query)
             ->searchRaw($model, $query);
     }
 
+    /**
+     * Execute a raw search with scroll.
+     *
+     * @param $query
+     * @param $size
+     * @param $scroll
+     * @return array
+     */
+    public static function searchRawWithScroll(array $query, int $size = 10000, string $scroll = '10s')
+    {
+        $model = new static();
+
+        return $model->searchableUsing()
+            ->searchRawWithScroll($model, $query, $size, $scroll);
+    }
+
+    /**
+     * Execute a scroll search.
+     *
+     * @param $scroll_id
+     * @param $scroll
+     * @return array
+     */
+    public static function scroll(string $scroll_id, string $scroll = '10s')
+    {
+        $model = new static();
+
+        return $model->searchableUsing()
+            ->scroll($scroll_id, $scroll);
+    }
+
     /**
      * Set the highlight attribute.
      *