【androidstudio】Spinnerで選択した項目でSQLite(Room)の抽出項目を選択したい

Spinnerで選択した項目でSQLite(Room)の抽出項目を選択したいのですが、
調べても分からず質問させていただきました。
初心者の質問で申し訳ありませんが、ご教授よろしくお願いします。

Activity
1class NaviSettingActivity : AppCompatActivity() {
2
3    private var dateSet: Int? = null
4    private var courseSet: Int? = null
5
6    override fun onCreate(savedInstanceState: Bundle?) {
7        super.onCreate(savedInstanceState)
8        setContentView(R.layout.activity_navi_setting)
9
10        // スピナー:曜日セット
11        val dateSelect: Spinner = findViewById(R.id.date_in)
12        val dateItem = resources.getStringArray(R.array.date_list)
13        val dateAdapter = ArrayAdapter(this, R.layout.spinner_dropdown_item, dateItem)
14        dateSelect.adapter = dateAdapter
15
16        dateSelect.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
17            override fun onNothingSelected(parent: AdapterView<*>?) {
18            }
19
20            override fun onItemSelected(
21                parent: AdapterView<*>?,
22                view: View?,
23                position: Int,
24                id: Long
25            ) {
26                val spinner = parent as? Spinner
27                val item1 = spinner?.selectedItem as? Int
28                dateSet = item1
29            }
30        }
31
32
33        // スピナー:コースセット
34        val courseSelect: Spinner = findViewById(R.id.course_in)
35        val courseItem = resources.getStringArray(R.array.course_list)
36        val courseAdapter = ArrayAdapter(this, R.layout.spinner_dropdown_item, courseItem)
37        courseSelect.adapter = courseAdapter
38
39        courseSelect.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
40            override fun onNothingSelected(parent: AdapterView<*>?) {
41            }
42
43            override fun onItemSelected(
44                parent: AdapterView<*>?,
45                view: View?,
46                position: Int,
47                id: Long
48            ) {
49                val spinner = parent as? Spinner
50                val item2 = spinner?.selectedItem as? Int
51                courseSet = item2
52            }
53        }
54
55
56        // 仮マップ表示
57        val mapClick = findViewById<Button>(R.id.btMap)
58        mapClick.setOnClickListener {
59            val intent1 = Intent(this, MapsActivity::class.java)
60            startActivity(intent1)
61        }
62
63        // コース修正画面表示
64        val fixClick = findViewById<Button>(R.id.btCourseFix)
65        fixClick.setOnClickListener {
66            val intent2 = Intent(this, BaseActivity::class.java)
67            startActivity(intent2)
68        }
69    }
70}
71

Repository
1class UserRepository(private val userDao: UserDao) {
2
3    val dateSet = 2
4    val courseSet = 2
5    val readAllData: LiveData<List<User>> = userDao.readAllData(dateSet = dateSet,courseSet = courseSet)
6
7    suspend fun addUser(user: User) {
8        userDao.addUser(user)
9    }
10
11    suspend fun updateUser(user: User) {
12        userDao.updateUser(user)
13    }
14
15    suspend fun deleteUser(user: User) {
16        userDao.deleteUser(user)
17    }
18
19    suspend fun deleteAllUser() {
20        userDao.deleteAllUsers()
21    }
22}

Dao
1@Dao
2interface UserDao {
3
4    @Insert(onConflict = OnConflictStrategy.REPLACE)
5    suspend fun addUser(user: User)
6
7    @Update
8    suspend fun updateUser(user: User)
9
10    @Delete
11    fun deleteUser(user: User)
12
13    @Query("DELETE FROM user_table")
14    suspend fun deleteAllUsers()
15
16//    @Query("SELECT * FROM user_table ORDER BY id ASC")
17    @Query("SELECT * FROM user_table WHERE date = :dateSet + course = :courseSet")
18    fun readAllData(dateSet: Int,courseSet:Int): LiveData<List<User>>
19}