Database Cart

kbazaar/src/main/java/com/kampus/kbazaar/cart/CartController.java

@@ -1,20 +1,29 @@
 package com.kampus.kbazaar.cart;
 
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequestMapping("/api/v1")
 public class CartController {
 
+    @Autowired
+    private final CartService cartService;
+
+    public CartController(CartService cartService) {
+        this.cartService = cartService;
+    }
+
     @GetMapping("/carts")
     public ResponseEntity getCart() { // NOSONAR
         return ResponseEntity.ok().build();
     }
 
+
     @PostMapping("/carts/{username}/promotions")
     public ResponseEntity createCartPromotions(@PathVariable String username) {
-
+        cartService.createCartPromotions30UpTo200();
         return ResponseEntity.ok().build();
     }
 }

kbazaar/src/main/java/com/kampus/kbazaar/cart/CartRepository.java

@@ -1,7 +1,13 @@
 package com.kampus.kbazaar.cart;
 
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 @Repository
 public interface CartRepository {
+    @Query("SELECT c FROM Cart c WHERE c.shopper.id = :userId")
+    List<Cart> findByUserId(@Param("userId") Long userId);
 }

kbazaar/src/main/java/com/kampus/kbazaar/cart/CartService.java

@@ -1,5 +1,23 @@
 package com.kampus.kbazaar.cart;
 
+import com.kampus.kbazaar.exceptions.NotFoundException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
 public class CartService {
+    @Autowired
+    private final CartRepository cartRepository;
+
+    public CartService(CartRepository cartRepository) {
+        this.cartRepository = cartRepository;
+    }
 
+    public void createCartPromotions30UpTo200() {
+        List<Cart> carts = cartRepository.findByUserId(1L);
+        if (cartRepository.findByUserId(1L).isEmpty())
+            throw new NotFoundException("Cart not found");
+    }
 }

kbazaar/src/main/resources/sql/schema/cart.sql

@@ -1,7 +1,7 @@
 CREATE TABLE cart (
     cart_id SERIAL PRIMARY KEY,
     quantity INT NOT NULL,
-    (user_id) REFERENCES shopper(id)
-    (product_id) REFERENCES product(id)
-    (promotion_id) REFERENCES promotion(promotion_id)
+    user_id INT NOT NULL,
+    product_id INT NOT NULL,
+    promotion_id INT NOT NULL
 )