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murakumo_idが被らない用ロジック実装版 #23

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murakumo merged 2 commits from murakumo_idが被らない用ロジック実装版 into master 2024-07-02 05:05:17 +00:00
Conversation 0 Commits 2 Files Changed 6 +9 -8
3 changed files with 9 additions and 8 deletions
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2
app/src/main/java/com/example/oplogy/AppDatabase.java
View File

@ -3,7 +3,7 @@ package com.example.oplogy;
import androidx.room.Database;
import androidx.room.RoomDatabase;
@Database(entities = {SetUpTable.class}, version = 2, exportSchema = false)
@Database(entities = {SetUpTable.class}, version = 3, exportSchema = false)
public abstract class AppDatabase extends RoomDatabase {
// データベースにアクセスするためのメソッドを提供する
public abstract SetUpTableDao setUpTableDao();

8
app/src/main/java/com/example/oplogy/MainActivity.java
View File

@ -176,7 +176,9 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
// タスク1: ローカルDBから生徒数を取得してtotalStudentと比較
executor.execute(() -> {
AppDatabase db = Room.databaseBuilder(getApplicationContext(), AppDatabase.class, "SetUpTable").build();
AppDatabase db = Room.databaseBuilder(getApplicationContext(), AppDatabase.class, "SetUpTable")
.fallbackToDestructiveMigration()
.build();
SetUpTableDao setUpTableDao = db.setUpTableDao();
Log.d("MainActivity", "db" + setUpTableDao.getAll());
@ -341,7 +343,9 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
//roomからclassIdを取得
ExecutorService executor = Executors.newSingleThreadExecutor();
executor.execute(() -> {
AppDatabase db = Room.databaseBuilder(getApplicationContext(), AppDatabase.class, "SetUpTable").build();
AppDatabase db = Room.databaseBuilder(getApplicationContext(), AppDatabase.class, "SetUpTable")
.fallbackToDestructiveMigration()
.build();
SetUpTableDao setUpTableDao = db.setUpTableDao();
classId = setUpTableDao.getClassId();
});

7
app/src/main/java/com/example/oplogy/SetUpActivity.java
View File

@ -127,11 +127,8 @@ public class SetUpActivity extends FragmentActivity
executor.execute(() -> {
//roomのインスタンスを作成
AppDatabase db = Room.databaseBuilder(
getApplicationContext(),
AppDatabase.class,
"SetUpTable"
)
AppDatabase db = Room.databaseBuilder(getApplicationContext(), AppDatabase.class, "SetUpTable")
.fallbackToDestructiveMigration()
.build();
SetUpTableDao setUpTableDao = db.setUpTableDao();
// Roomの操作を行う