Resolve "Backend code update"

Closes #4 (closed)

lib/Db/OC/ExternalSharesMapper.php

@@ -15,23 +15,15 @@ class ExternalSharesMapper extends ExtMapper {
     }
 
 	public function queryTotalCount() {
-		$data = [
-			'count' => 0
-		];
-		$this->chunkedQuery('id', array($this, 'queryTotalCountCallback'), $data);
-		return $data['count'];
-	}
-
-    protected function queryTotalCountCallback(IQueryBuilder $query, $offset, &$data): int {
-        $query->selectAlias($query->createFunction('COUNT(*)'), 'c')
-	        ->selectAlias($query->createFunction('MAX(id)'), 'm')
-            ->from(self::EXTERNAL_SHARES_TABLE);
-	    $this->addChunkCondition($query,'id', $offset, true);
-
-	    // Query values and add up count
-	    $values = $this->queryValues($query, ['c', 'm']);
-        $data['count'] += $values['c'];
-
-		return $values['m'] == NULL ? 0 : $values['m'];
-    }
+		$query = $this->db->getQueryBuilder();
+
+		// Create a query to count all rows in the EXTERNAL_SHARES_TABLE
+		$query->selectAlias($query->createFunction('COUNT(*)'), 'count')
+			->from(self::EXTERNAL_SHARES_TABLE);
+
+		// Execute the query and fetch the result
+		$result = $query->execute()->fetch();
+
+		// Return the total count as an integer
+		return (int) $result['count'];
 }