tasks can be marked as finished

Lab01/app/database/database.go

@@ -45,8 +45,22 @@ func (db *Database) CreateTask(username string, description string) Task {
 	return task
 }
 
-func (db *Database) DeleteTask(id string) {
-	db.ORM.Delete(&Task{}, id)
+func (db *Database) DeleteTask(id string) bool {
+	result := db.ORM.Delete(&Task{}, id)
+	if result.RowsAffected == 0 {
+		return false
+	}
+	return true
+}
+
+func (db *Database) UpdateTask(id string, done string) bool {
+	task := Task{}
+	db.ORM.First(&task, id)
+	result := db.ORM.Model(&task).Update("done", done)
+	if result.RowsAffected == 0 {
+		return false
+	}
+	return true
 }
 
 func (db *Database) CreateUser(username string, password string) error {