0
我有這個疑問:總和加入
$get_similar = $this->db->select('product.ar_id, product.title, likes.id, SUM(likes.up) as vote');
$get_similar = $this->db->from('product');
$get_similar = $this->db->join('likes', 'likes.id = product.id', 'left');
$get_similar = $this->db->where("MATCH (product.title, product.introduction) AGAINST ('$search') group by product.id LIMIT 6", null, false);
$get_similar = $this->db->get();
對於每一行,我得到vote = null
!它應該只返回0
只有沒有選票的產品!你能告訴我我犯了什麼錯誤嗎?
你可以在get()之後顯示$ get_similar的var_dump嗎? – Johnny