public function all_polling() {
        $this->db->select('*');
        $this->db->from('micom_pools');
        $this->db->limit(1);
        $this->db->where('status','published');
        $this->db->order_by('id','desc');
        $query = $this->db->get();
        return $query->result_array();
}

public function polling_sum($id==NULL){
        $this->db->select('count(*) as jml_vote ');
        $this->db->from('micom_votes');
    if($id!=NULL){
        $this->db->where('pool_id',$id);
    }
        $query = $this->db->get();
        return $query->result_array();

}

public function jum_vote($id,$answer){
        $this->db->select('count(*) as jum');
        $this->db->from('micom_votes');
        $this->db->where(array('pool_id'=>$id,'answer_id'=>$answer));
        $query = $this->db->get();
        return $query->result_array();
}