List Revisi Proposal

public function listrevisi_post()
    {
        $username = trim($this->post('username'));
        $level    = trim($this->post('level'));
        $id       = trim($this->post('id'));

        if ($username == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Username tidak ditemukan.',
            ];
        } elseif ($level == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'Level tidak diketahui.',
            ];
        } elseif ($id == '') {
            $response = [
                'resp_error' => true,
                'resp_msg'   => 'ID Proposal kosong.',
            ];
        } else {
            if ($level = 'Member') {
                $listRevisi = $this->db->order_by('revision_post', 'desc')->get_where('v_revisi', array('propose_id' => $id))->result();
            } elseif ($level = 'Reviewer') {
                $listRevisi = $this->db->order_by('revision_post', 'desc')->get_where('v_revisi', array('user_username' => $username, 'propose_id' => $id))->result();
            }

            if (count($listRevisi) == 0) {
                $response = [
                    'resp_error' => false,
                    'resp_msg'   => 'Tidak Ada Data',
                ];
            } else {
                $no = 1;
                foreach ($listRevisi as $r) {
                    //Jika Level = Admin, tampilkan Foto
                    if ($level != 'Member') {
                        $foto = base_url('img/icon/' . $r->user_avatar);
                        $nama = $r->user_name;
                    } else {
                        $foto = base_url('img/no_avatar.png');
                        $nama = 'Reviewer '.$no;
                    }

                    $response['items'][] = [
                        'resp_error'    => false,
                        'revision_id'   => $r->revision_id,
                        'propose_id'    => $r->propose_id,
                        'user_username' => $r->user_username,
                        'nama'          => $nama,
                        'tanggal'       => date("d-m-Y", strtotime($r->revision_post)),
                        'deskripsi'     => trim($r->revision_desc),
                        'status'        => trim($r->revision_status),
                        'foto'          => $foto,
                    ];
                    $no++;
                }
            }
        }

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