php - How to write Subquery in codeigniter active record for this query -

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 select  from_id, (select count(id) user_messages from_id=1223 , status=1) sent_unread,      (select count(id) user_messages from_id=1223 , status=2) sent_read      user_messages      from_id=1223      group from_id

how write above select statement in codeigniter active record?

this came with:

  $this->db->select('from_id, (select count(id) user_messages from_id=1223 , status=1) sent_unread,         (select count(id) user_messages from_id=1223 , status=2) sent_read');      $this->db->where('from_id', $member_id);      $this->db->group_by('from_id');      $this->db->from('user_messages');      $result = $this->db->get();      //echo $this->db->last_query();     return $result->row();

is right method?

try 

<?php       $query="from_id, (select count(id) user_messages from_id=1223 , status=1) sent_unread,             (select count(id) user_messages from_id=1223 , status=2) sent_read";       $query_run=$this->db->select($query);       $query_run->where('from_id', $member_id);       $query_run->group_by('from_id');        $result = $query_run->get('user_messages');       //echo $this->db->last_query();        return $result->row();     ?>

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