add basic task db

app/build.gradle.kts

@@ -39,4 +39,17 @@ dependencies {
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+    val roomVersion = "2.6.1"
+    implementation("androidx.room:room-runtime:$roomVersion")
+    annotationProcessor("androidx.room:room-compiler:$roomVersion")
+    // optional - RxJava2 support for Room
+    implementation("androidx.room:room-rxjava2:$roomVersion")
+    // optional - RxJava3 support for Room
+    implementation("androidx.room:room-rxjava3:$roomVersion")
+    // optional - Guava support for Room, including Optional and ListenableFuture
+    implementation("androidx.room:room-guava:$roomVersion")
+    // optional - Test helpers
+    testImplementation("androidx.room:room-testing:$roomVersion")
+    // optional - Paging 3 Integration
+    implementation("androidx.room:room-paging:$roomVersion")
 }

app/src/main/java/com/example/taskmanager/Activity/CreateTaskActivity.java

@@ -20,9 +20,12 @@
 import android.widget.TimePicker;
 import android.widget.Toast;
 
+import com.example.taskmanager.Database.RoomDB;
 import com.example.taskmanager.R;
+import com.example.taskmanager.Utility.TaskModel;
 
 import java.time.LocalDate;
+import java.util.List;
 
 public class CreateTaskActivity extends AppCompatActivity {
     String currentPriority = "Low";
@@ -53,6 +56,12 @@ public void onNothingSelected(AdapterView<?> parentView) {
                 // Do nothing
             }
         });
+
+        //for database testing purposes (note that anyways this wouldnt work as you can't directly call db method from the same UI thread)
+//        RoomDB instance = RoomDB.getInstance(getApplicationContext());
+//        instance.taskDAO().insertTask(new TaskModel( 0, "test", "ayyyyy", "", "", "", true));
+//        List<TaskModel> allTasks = instance.taskDAO().getAllTasks();
+//        Log.wtf("DB", allTasks.toString());
     }
 
     public void selectDate(View v) {

app/src/main/java/com/example/taskmanager/Database/RoomDB.java

@@ -0,0 +1,30 @@
+package com.example.taskmanager.Database;
+
+import android.content.Context;
+
+import androidx.room.Database;
+import androidx.room.Room;
+import androidx.room.RoomDatabase;
+
+import com.example.taskmanager.Utility.TaskModel;
+
+@Database(entities = {TaskModel.class}, version = 1)
+public abstract class RoomDB extends RoomDatabase {
+    private static volatile RoomDB INSTANCE;
+    public abstract TaskDAO taskDAO ();
+
+    public static RoomDB getInstance(Context context){
+        if (INSTANCE == null){
+            synchronized (RoomDB.class) {
+                if (INSTANCE == null){
+                    INSTANCE = Room.databaseBuilder(context.getApplicationContext(), RoomDB.class, "TASK_DB").build();
+                }
+            }
+        }
+        return INSTANCE;
+    }
+
+    public void insertTask(TaskModel task){
+
+    }
+}

app/src/main/java/com/example/taskmanager/Database/TaskDAO.java

@@ -0,0 +1,35 @@
+package com.example.taskmanager.Database;
+
+import androidx.room.Dao;
+import androidx.room.Delete;
+import androidx.room.Insert;
+import androidx.room.Query;
+import androidx.room.Update;
+
+import com.example.taskmanager.Utility.TaskModel;
+
+import java.util.List;
+
+@Dao
+public interface TaskDAO {
+    @Insert
+    void insertTask(TaskModel task);
+
+    @Delete
+    void deleteTask(TaskModel task);
+
+    @Update
+    void updateTask(TaskModel task);
+
+    @Query("SELECT * FROM task_table")
+    List<TaskModel> getAllTasks();
+
+    @Query("SELECT * FROM task_table WHERE id LIKE :taskId")
+    TaskModel findTaskById(int taskId);
+
+    @Query("SELECT * FROM task_table WHERE status LIKE 0")
+    List<TaskModel> getAllOngoingTasks();
+
+    @Query("SELECT * FROM task_table WHERE status LIKE 1")
+    List<TaskModel> getAllCompletedTasks();
+}

app/src/main/java/com/example/taskmanager/Utility/TaskModel.java

@@ -1,27 +1,42 @@
 package com.example.taskmanager.Utility;
 
+import androidx.room.ColumnInfo;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+
 import java.io.Serializable;
 
+@Entity (tableName = "task_table")
 public class TaskModel implements Serializable {
-    private int id, status;
+    @PrimaryKey( autoGenerate = true)
+    private int id;
+    @ColumnInfo (name = "status")
+    private int status;
+    @ColumnInfo (name = "title")
     private String title;
+    @ColumnInfo (name = "desc")
     private String description;
+    @ColumnInfo (name = "priority")
     private String currentPriority;
+    @ColumnInfo (name = "date")
     private String currentDate;
+    @ColumnInfo (name = "time")
     private String currentTime;
+    @ColumnInfo (name = "editable")
+    private Boolean editable;
 
     public TaskModel()
     {
 
     }
-    public TaskModel(int id, int status, String title, String description, String currentPriority, String currentDate, String currentTime) {
-        this.id = id;
+    public TaskModel(int status, String title, String description, String currentPriority, String currentDate, String currentTime, Boolean editable) {
         this.status = status;
         this.title = title;
         this.description = description;
         this.currentPriority = currentPriority;
         this.currentDate = currentDate;
         this.currentTime = currentTime;
+        this.editable = editable;
     }
 
 
@@ -81,4 +96,12 @@ public String getCurrentTime() {
     public void setCurrentTime(String currentTime) {
         this.currentTime = currentTime;
     }
+
+    public Boolean getEditable() {
+        return editable;
+    }
+
+    public void setEditable(Boolean editable) {
+        this.editable = editable;
+    }
 }

app/src/main/java/com/example/taskmanager/ui/CompletedTaskFragment.java

@@ -27,8 +27,8 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
         TaskAdapter taskAdapter =  new TaskAdapter(this);
         taskRecyclerView.setAdapter(taskAdapter);
 
-        TaskModel task = new TaskModel(0, 1, "Completed Task", "Dummy Task", "1",
-                "Deadline: 10-5-2024", "10pm");
+        TaskModel task = new TaskModel(1, "Completed Task", "Dummy Task", "1",
+                "Deadline: 10-5-2024", "10pm", true);
 
         List<TaskModel> tasksList = new ArrayList<>();
         tasksList.add(task);

app/src/main/java/com/example/taskmanager/ui/CurrentTasksFragment.java

@@ -34,8 +34,8 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
         taskAdapter =  new TaskAdapter(this);
         taskRecyclerView.setAdapter(taskAdapter);
 
-        TaskModel task = new TaskModel(0, 0, "Test Task", "Dummy Task", "1",
-                "Deadline: 10-5-2024", "10pm");
+        TaskModel task = new TaskModel(0, "Test Task", "Dummy Task", "1",
+                "Deadline: 10-5-2024", "10pm", true);
 
         tasksList = new ArrayList<>();
         tasksList.add(task);