complete model classes

src/main/java/dev/model/MenuItem.java

@@ -1,15 +1,26 @@
 package dev.model;
 
 public class MenuItem {
-
-    private int id;
-
+    private int    id;
     private String name;
-
     private String description;
-
     private double price;
-
     private String category;
 
+    public MenuItem() {}
+
+    public int getId(){ return id; }
+    public void setId(int id){ this.id = id; }
+
+    public String getName(){ return name; }
+    public void setName(String n){ this.name = n; }
+
+    public String getDescription(){ return description; }
+    public void setDescription(String d){ this.description = d; }
+
+    public double getPrice(){ return price; }
+    public void setPrice(double p){ this.price = p; }
+
+    public String getCategory(){ return category; }
+    public void setCategory(String c){ this.category = c; }
 }

src/main/java/dev/model/Order.java

@@ -3,13 +3,28 @@ package dev.model;
 import java.time.LocalDateTime;
 
 public class Order {
-
     private int id;
-
     private int userId;
-
     private LocalDateTime createdAt;
-
     private double totalPrice;
 
+    public Order() {}
+
+    public Order(int userId, double totalPrice) {
+        this.userId = userId;
+        this.totalPrice = totalPrice;
+        this.createdAt = LocalDateTime.now();
+    }
+
+    public int getId(){ return id; }
+    public void setId(int id){ this.id = id; }
+
+    public int getUserId() { return userId; }
+    public void setUserId(int uid){ this.userId = uid; }
+
+    public LocalDateTime getCreatedAt(){ return createdAt; }
+    public void setCreatedAt(LocalDateTime t){ this.createdAt = t; }
+
+    public double getTotalPrice(){ return totalPrice; }
+    public void setTotalPrice(double p){ this.totalPrice = p; }
 }

src/main/java/dev/model/OrderDetail.java

@@ -1,15 +1,33 @@
 package dev.model;
 
 public class OrderDetail {
-
     private int id;
-
     private int orderId;
-
     private int menuItemId;
-
     private int quantity;
+    private double price;  // unit price at purchase time
 
-    private double price;
+    public OrderDetail() {}
 
+    public OrderDetail(int orderId, int menuItemId, int quantity, double price) {
+        this.orderId = orderId;
+        this.menuItemId = menuItemId;
+        this.quantity = quantity;
+        this.price = price;
+    }
+
+    public int getId(){ return id; }
+    public void setId(int id){ this.id = id; }
+
+    public int getOrderId(){ return orderId; }
+    public void setOrderId(int o){ this.orderId = o; }
+
+    public int getMenuItemId(){ return menuItemId; }
+    public void setMenuItemId(int m){ this.menuItemId = m; }
+
+    public int getQuantity(){ return quantity; }
+    public void setQuantity(int q){ this.quantity = q; }
+
+    public double getPrice(){ return price; }
+    public void setPrice(double p){ this.price = p; }
 }