List Detail Ticket SIMPEL

public function listdetailticket_post()
    {
        $username  = trim($this->post('username'));
        $ticket_id = trim($this->post('ticket_id'));

        if ($username == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Username kosong.',
            ];
        } elseif ($ticket_id == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'ID Ticket tidak ditemukan.',
            ];
        } else {
            $detail = $this->db->get_where('v_ticket', array('ticket_id' => $ticket_id))->row();
            // List Pendukung
            $daftarHistory = array();
            $this->db->select('*');
            $this->db->from('v_detail_ticket');
            $this->db->where('ticket_id', $ticket_id);
            $this->db->order_by('detail_id', 'desc');

            $listHistory = $this->db->get()->result();
            foreach ($listHistory as $x) {
                if ($x->detail_image != '') {
                    $attachment = base_url('ticket/' . $x->detail_image);
                } else {
                    $attachment = '';
                }

                if ($x->user_avatar != '') {
                    $avatar = base_url('img/icon/' . $x->user_avatar);
                } else {
                    $avatar = '';
                }
                $daftarHistory[] = array(
                    'detail_id'        => $x->detail_id,
                    'detail_level'     => $x->detail_level,
                    'detail_name'      => $x->user_name,
                    'detail_level'     => $x->user_level,
                    'detail_date_post' => date('d-m-Y', strtotime($x->detail_date_post)),
                    'detail_message'   => trim($x->detail_message),
                    'attachment'       => $attachment,
                    'avatar'           => $avatar,
                );
            }

            $response = [
                'resp_error'       => false,
                'ticket_id'        => $detail->ticket_id,
                'ticket_subject'   => trim($detail->ticket_subject),
                'ticket_status'    => trim($detail->ticket_status),
                'nama_pemohon'     => trim($detail->user_name),
                'email_pemohon'    => trim($detail->user_email),
                'ticket_date_post' => date('d-m-Y', strtotime($detail->ticket_date_post)),
                'ticket_update'    => date('d-m-Y', strtotime($detail->ticket_date_post)),
                'data'             => [
                    "listhistory" => $daftarHistory,
                ],
            ];
        }

        $this->response($response, 200);
    }