Created some logic in TaskRepository. Added id to models, etc...

src/main/java/service/TaskService.java

@@ -0,0 +1,27 @@
+package service;
+
+import models.Task;
+import repository.TaskRepository;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Date;
+
+public class TaskService {
+
+    TaskRepository taskRepository;
+
+    public TaskService(TaskRepository taskRepository) {
+        this.taskRepository = taskRepository;
+    }
+
+    public ArrayList<Task> getUserTasksFilterByDate(Date startDate, Date endDate) {
+        try {
+            return taskRepository.getUserTasks(startDate, endDate);
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+}