implement OrderDetailDao.java

src/main/java/dev/dao/OrderDetailDao.java

@@ -1,7 +1,13 @@
 package dev.dao;
 
+import dev.database.DatabaseConnection;
 import dev.model.OrderDetail;
 
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
 import java.util.List;
 
 public class OrderDetailDao {
@@ -11,14 +17,59 @@ public class OrderDetailDao {
         // TODO:
         // Insert order detail
 
+        String sql = "INSERT INTO order_detail (order_id, menu_item_id, quantity, price) VALUES(?, ?, ?, ?)";
+
+        try(Connection connection = DatabaseConnection.getConnection();
+            PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+
+            preparedStatement.setInt(1, detail.getOrderId());
+            preparedStatement.setInt(2, detail.getMenuItemId());
+            preparedStatement.setInt(3, detail.getQuantity());
+            preparedStatement.setDouble(4, detail.getPrice());
+
+            preparedStatement.executeQuery();
+
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+
     }
 
     public List<OrderDetail> findByOrderId(int orderId) {
 
-        // TODO:
         // Retrieve order details
 
-        return null;
+        String sql = "SELECT * FROM order_detail WHERE order_id=?";
+
+        List<OrderDetail> orderDetails = new ArrayList<>();
+
+        try(Connection connection = DatabaseConnection.getConnection();
+            PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
+
+            preparedStatement.setInt(1, orderId);
+
+            ResultSet resultSet = preparedStatement.executeQuery();
+
+            while (resultSet.next()) {
+
+                OrderDetail orderDetail = new OrderDetail();
+
+                orderDetail.setId(resultSet.getInt("id"));
+                orderDetail.setOrderId(resultSet.getInt("order_id"));
+                orderDetail.setMenuItemId(resultSet.getInt("menu_item_id"));
+                orderDetail.setQuantity(resultSet.getInt("quantity"));
+                orderDetail.setPrice(resultSet.getDouble("price"));
+
+                orderDetails.add(orderDetail);
+            }
+
+
+
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+
+        return orderDetails;
     }
 
 }