roomの作成

daoは追加がいる

app/build.gradle

@@ -46,3 +46,14 @@ dependencies {
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
 }
+//room用の依存関係を追加
+dependencies {
+    def room_version = "2.4.1"
+
+    implementation "androidx.room:room-runtime:$room_version"
+    annotationProcessor "androidx.room:room-compiler:$room_version"
+}
+dependencies {
+    implementation 'com.google.code.gson:gson:2.8.8'
+}
+

app/src/main/java/com/example/oplogy/AppDatabase.java

@@ -0,0 +1,12 @@
+package com.example.oplogy;
+
+import androidx.room.Database;
+import androidx.room.RoomDatabase;
+import androidx.room.TypeConverters;
+
+@Database(entities = {QuestionnaireForm.class}, version = 1)
+@TypeConverters({Converters.class})
+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 QuestionnaireFormDao questionnaireFormDao();
+}

app/src/main/java/com/example/oplogy/Converters.java

@@ -0,0 +1,39 @@
+package com.example.oplogy;
+import androidx.room.TypeConverter;
+
+import com.google.firebase.Timestamp;
+
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+
+public class Converters {
+    private static final SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.JAPAN);
+
+
+    // タイムスタンプを文字列(yyyy-mm-dd,日時)に変換
+    @TypeConverter
+    public static List<String> fromTimestampList(List<Timestamp> timestamps) {
+        List<String> strings = new ArrayList<>();
+        for (Timestamp timestamp : timestamps) {
+            strings.add(format.format(timestamp.toDate()));
+        }
+        return strings;
+    }
+
+    @TypeConverter
+    public static List<Timestamp> toTimestampList(List<String> strings) {
+        List<Timestamp> timestamps = new ArrayList<>();
+        for (String string : strings) {
+            try {
+                Date date = format.parse(string);
+                timestamps.add(new Timestamp(date));
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        return timestamps;
+    }
+}

app/src/main/java/com/example/oplogy/FirestoreReception.java

@@ -1,7 +1,13 @@
 package com.example.oplogy;
 
+import static android.content.Context.MODE_PRIVATE;
+
+import android.content.Context;
+import android.content.SharedPreferences;
 import android.util.Log;
 
+import androidx.room.Room;
+
 import com.google.android.gms.tasks.OnCompleteListener;
 import com.google.android.gms.tasks.Task;
 import com.google.firebase.Timestamp;
@@ -16,46 +22,58 @@ import java.util.Map;
 public class FirestoreReception {
 
     private FirebaseFirestore db;
+    private Context context;
+    private AppDatabase appDatabase;
 
-    public FirestoreReception() {
+    public FirestoreReception(Context context) {
         db = FirebaseFirestore.getInstance();
+        this.context = context;
+        this.appDatabase = Room.databaseBuilder(context, AppDatabase.class, "FormsRoom").build();
     }
 
-    //ClassIdを引数にデータの作成を行う
     public void getDocumentsByClassId(int classId) {
         CollectionReference collectionRef = db.collection("QuestionnaireForms");
+        SharedPreferences sharedPreferences = context.getSharedPreferences("FirestoreData", MODE_PRIVATE);
 
-        // classIdが引数のものを取得する
         collectionRef.whereEqualTo("classId", classId).get()
                 .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
                     @Override
                     public void onComplete(Task<QuerySnapshot> task) {
                         if (task.isSuccessful()) {
-                            // データの取得に成功した場合
                             for (QueryDocumentSnapshot document : task.getResult()) {
+                                // すでに取得済みのドキュメントは除外
+                                if (sharedPreferences.getBoolean(document.getId(), false)) {
+                                    Log.w("FirestoreReception", "すでに取得済みのドキュメントです.");
+                                    continue;
+                                }
+                                // firestoreのドキュメントのデータを取得
                                 Map<String, Object> data = document.getData();
 
-                                // デバッグ用のログ出力
-                                Log.d("FirestoreReception", "Document ID: " + document.getId());
-                                Log.d("FirestoreReception", "Data: " + data);
+                                // データをエンティティクラスのインスタンスに変換
+                                QuestionnaireForm form = new QuestionnaireForm();
+                                form.classId = Integer.parseInt(data.get("classId").toString());
+                                form.patronName = data.get("patronName").toString();
+                                form.address = data.get("address").toString();
+                                form.firstDay = Converters.fromTimestampList((List<Timestamp>) data.get("firstDay")).toString();
+                                form.studentNumber = Integer.parseInt(data.get("studentNumber").toString());
+                                form.childName = data.get("childName").toString();
+                                form.thirdDay = Converters.fromTimestampList((List<Timestamp>) data.get("thirdDay")).toString();
+                                form.secondDay = Converters.fromTimestampList((List<Timestamp>) data.get("secondDay")).toString();
 
-                                // ここでデータを取得し、必要に応じて処理を行います
-//                                String parentName = (String) data.get("patronName");
-//                                String childName = (String) data.get("childName");
-//                                String studentId = (String) data.get("studentNumber");
-////                                Timestamp address = (Timestamp) data.get("address");
-//                                List<Timestamp> firstDay = (List<Timestamp>) data.get("firstDay");
-//                                List<Timestamp> secondDay = (List<Timestamp>) data.get("secondDay");
-//                                List<Timestamp> thirdDay = (List<Timestamp>) data.get("thirdDay");
-//
-//                                // 取得したデータを使って必要な処理を行う
-//                                Log.d("FirestoreReception", "ParentName: " + parentName);
-//                                Log.d("FirestoreReception", "ChildName: " + childName);
-//                                Log.d("FirestoreReception", "StudentNumber: " + studentId);
-////                                Log.d("FirestoreReception", "Address: " + address.toDate());
-//                                Log.d("FirestoreReception", "First Day: " + firstDay);
-//                                Log.d("FirestoreReception", "Second Day: " + secondDay);
-//                                Log.d("FirestoreReception", "Third Day: " + thirdDay);
+                                // データベースに保存
+                                new Thread(new Runnable() {
+                                    @Override
+                                    public void run() {
+                                        appDatabase.questionnaireFormDao().insertAll(form);
+                                        Log.w("FirestoreReception", "成功.");
+                                    }
+                                }).start();
+
+                                // ドキュメントのIDを保存
+                                // すでに取得済みのドキュメントは再度取得しないようにする
+                                SharedPreferences.Editor editor = sharedPreferences.edit();
+                                editor.putBoolean(document.getId(), true);
+                                editor.apply();
                             }
                         } else {
                             Log.w("FirestoreReception", "Error getting documents.", task.getException());

app/src/main/java/com/example/oplogy/MainActivity.java

@@ -63,10 +63,10 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
         submission = findViewById(R.id.submission);
         submission.setOnClickListener(this);
 
-//      firestoreの受信関連
+//      firestoreの受信関連の宣言
         db = FirebaseFirestore.getInstance();
-        firestoreReception = new FirestoreReception();
-
+        firestoreReception = new FirestoreReception(this);
+//      受信するメソッドの呼び出し
         firestoreReception.getDocumentsByClassId(100);
 
 
@@ -85,12 +85,12 @@ public class MainActivity extends AppCompatActivity implements View.OnClickListe
 
         }
 //        セットアップのクリック処理
-        if(view == setUp){
-            imageSetup.setImageResource(R.drawable.ischecked_uuid);
-            Intent toSetup = new Intent(MainActivity.this,SetupActivity.class);
-            startActivity(toSetup);
-
-        }
+//        if(view == setUp){
+//            imageSetup.setImageResource(R.drawable.ischecked_uuid);
+//            Intent toSetup = new Intent(MainActivity.this,SetupActivity.class);
+//            startActivity(toSetup);
+//
+//        }
 //        ルート作成のクリック処理
         if(view == root){
             imageRoot.setImageResource(R.drawable.pin);

app/src/main/java/com/example/oplogy/QuestionnaireForm.java

@@ -0,0 +1,20 @@
+package com.example.oplogy;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+
+@Entity
+public class QuestionnaireForm {
+    //主キー
+    @PrimaryKey(autoGenerate = true)
+    public int id;
+
+    //その他フィールド
+    public int classId;
+    public String patronName;
+    public String address;
+    public String firstDay;
+    public int studentNumber;
+    public String childName;
+    public String thirdDay;
+    public String secondDay;
+}

app/src/main/java/com/example/oplogy/QuestionnaireFormDao.java

@@ -0,0 +1,17 @@
+package com.example.oplogy;
+import androidx.room.Dao;
+import androidx.room.Insert;
+import androidx.room.Query;
+
+import java.util.List;
+
+@Dao
+public interface QuestionnaireFormDao {
+
+    @Query("SELECT * FROM QuestionnaireForm")
+    List<QuestionnaireForm> getAll();
+
+    // このメソッドは、QuestionnaireFormのリストを受け取り、それらをデータベースに挿入します。
+    @Insert
+    void insertAll(QuestionnaireForm... questionnaireForms);
+}

app/src/main/java/com/example/oplogy/SetUpActivity.java

@@ -1,14 +0,0 @@
-package com.example.oplogy;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.os.Bundle;
-
-public class SetUpActivity extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_set_up);
-    }
-}

app/src/main/java/com/example/oplogy/SetupActivity.java

@@ -1,14 +0,0 @@
-package com.example.oplogy;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.os.Bundle;
-
-public class SetupActivity extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.setup);
-    }
-}