SQL + Ion Auth + CodeIgniter？

Question

私は、次のSQLがあります。

SELECT (
(SELECT SUM(vote_score) 
FROM question_votes 
JOIN questions 
ON vote_question = q_id 
JOIN users 
ON q_author = users.id 
WHERE q_author` = users.id) 
+ 
(SELECT SUM(vote_score) 
FROM answer_votes 
JOIN answers 
ON vote_answer = a_id 
JOIN users 
ON a_author = users.id 
WHERE a_author = users.id)) AS rep 

を、私は（イオン認証の方法）、それはここで追加することにしたい。

$this->db->select(
      array(
       $this->tables['users'].'.*', 
       $this->tables['groups'].'.name AS '. $this->db->protect_identifiers('group'), 
       $this->tables['groups'].'.description AS '. $this->db->protect_identifiers('group_description'), 
       "(SELECT COUNT(`a_author`) FROM `answers` WHERE a_author = users.id) + (SELECT COUNT(`q_author`) FROM `questions` WHERE q_author = users.id) AS total_posts", 
       "SELECT 
((SELECT SUM(vote_score) 
FROM question_votes 
JOIN questions 
ON vote_question = q_id 
JOIN users 
ON q_author = users.id 
WHERE q_author` = users.id) 
+ 
(SELECT SUM(vote_score) 
FROM answer_votes 
JOIN answers 
ON vote_answer = a_id 
JOIN users 
ON a_author = users.id 
WHERE a_author = users.id)) AS rep" 
      ) 
     ); 

私がfollowinエラーが出る：

Answer 1

はなかったですあなたはエラーメッセージを読んでいますか？

あなたには、（ '）はありません。

変更この：このためq_author」= users.id： `（question_votes FROM （SUM（vote_scoreを選択） を選択：WHERE q_author = users.id