varname _ remove, id type int -> long

backend/src/main/java/com/example/todoapp/dto/DeleteToBuyRequest.java

@@ -5,5 +5,5 @@ import lombok.Data;
 @Data
 public class DeleteToBuyRequest {
     private Long userId;
-    private int tobuyId;
+    private Long tobuyId;
 }

backend/src/main/java/com/example/todoapp/dto/StockDTO.java

@@ -16,14 +16,14 @@ import java.time.LocalDate;
 
 @Data
 public class StockDTO {
-    private Long stock_id;
-    private Long stuff_id;
-    private Long user_id;
+    private Long stockId;
+    private Long stuffId;
+    private Long userId;
     private int amount;
     private int price;
-    private LocalDate buy_date;
-    private LocalDate last_update;
-    private LocalDate exp_date;
+    private LocalDate buyDate;
+    private LocalDate lastUpdate;
+    private LocalDate expDate;
 
     /**
      * 在庫エンティティからDTOを作成する
@@ -33,14 +33,14 @@ public class StockDTO {
      */
     public static StockDTO fromEntity(Stocks stock) {
         StockDTO dto = new StockDTO();
-        dto.setStock_id(stock.getStock_id());
-        dto.setStuff_id(stock.getStuff_id());
-        dto.setUser_id(stock.getUser_id().getId());
+        dto.setStockId(stock.getStockId());
+        dto.setStuffId(stock.getStuff().getStuffId());
+        dto.setUserId(stock.getUser().getId());
         dto.setAmount(stock.getAmount());
         dto.setPrice(stock.getPrice());
-        dto.setBuy_date(stock.getBuy_date());
-        dto.setLast_update(stock.getLast_update());
-        dto.setExp_date(stock.getExp_date());
+        dto.setBuyDate(stock.getBuyDate());
+        dto.setLastUpdate(stock.getLastUpdate());
+        dto.setExpDate(stock.getExpDate());
         return dto;
     }
 }

backend/src/main/java/com/example/todoapp/dto/ToBuyResponse.java

@@ -4,7 +4,7 @@ import lombok.Data;
 
 @Data
 public class ToBuyResponse {
-    private int tobuyId;
+    private Long tobuyId;
     private Long stuffId;
     private String stuffName;
     private int amount;

backend/src/main/java/com/example/todoapp/dto/ToBuysDTO.java

@@ -13,7 +13,7 @@ import lombok.Data;
 
 @Data
 public class ToBuysDTO {
-   private int tobuyId;
+   private Long tobuyId;
    private Long stuffId;
    private Long userId;
    private int price;

backend/src/main/java/com/example/todoapp/model/RecipeStuffs.java

@@ -38,7 +38,7 @@ public class RecipeStuffs {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name="recipe_stuffs_id")
-    private int recipeStuffsId ;
+    private Long recipeStuffsId ;
 
     /**
      * 料理の一意識別子 FK

backend/src/main/java/com/example/todoapp/model/Recipes.java

@@ -36,7 +36,7 @@ public class Recipes {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name="recipeId")
-    private int recipeId ;
+    private Long recipeId ;
 
     /**
     * カテゴリ名

backend/src/main/java/com/example/todoapp/model/Stocks.java

@@ -39,7 +39,7 @@ public class Stocks {
      */
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long stockI ;
+    private Long stockId;
 
 
      /**
@@ -55,18 +55,27 @@ public class Stocks {
      private Stuffs stuff;
 
 
-    /**
-     * ユーザーテーブル参照用の外部キー
+    // /**
+    //  * ユーザーテーブル参照用の外部キー
+    //  */
+    //  @NotNull
+    //  @ManyToOne(fetch = FetchType.LAZY)
+    //  @JoinColumn(
+    //      name = "userId",
+    //      referencedColumnName = "id",
+    //      nullable = false
+    //  )
+    // private User user;
+
+        /**
+     * タスクの所有者（ユーザー）
+     * 多対一の関係で、遅延ロードを使用
      */
-     @NotNull
-     @ManyToOne(fetch = FetchType.LAZY)
-     @JoinColumn(
-         name = "userId",
-         referencedColumnName = "id",
-         nullable = false
-     )
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "userId", nullable = false)
     private User user;
 
+
     /**
      * 在庫数量（デフォルト値: 1）
      */

backend/src/main/java/com/example/todoapp/model/ToBuys.java

@@ -37,7 +37,7 @@ public class ToBuys {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "tobuyId")
-    private int tobuyId ;
+    private Long tobuyId ;
 
     /**
      * 材料の一意識別子 FK

backend/src/main/java/com/example/todoapp/repository/ToBuysRepository.java

@@ -45,5 +45,5 @@ public interface ToBuysRepository extends JpaRepository<ToBuys, Integer> {
      */
     @Modifying
     @Query("DELETE FROM ToBuys t WHERE t.user.id = :userId AND t.tobuyId = :tobuyId")
-    int deleteByUserIdAndTobuyId(@Param("userId") Long userId, @Param("tobuyId") int tobuyId);
+    int deleteByUserIdAndTobuyId(@Param("userId") Long userId, @Param("tobuyId") Long tobuyId);
 }

backend/src/main/java/com/example/todoapp/service/StocksService.java

@@ -37,7 +37,7 @@ public class StocksService {
      */
     public Stocks createStock(String username, Stocks stock) {
         User user = getUserByUsername(username);
-        stock.setUser_id(user);
+        stock.setUser(user);
         return stocksRepository.save(stock);
 
     }
@@ -49,7 +49,7 @@ public class StocksService {
      */
     public List<Stocks> getALLStocksByUser(String username) {
         User user = getUserByUsername(username);
-        return stocksRepository.findStocksByUser_id(user.getId());
+        return stocksRepository.findStocksByUserId(user.getId());
     }
 
     /**
@@ -63,7 +63,7 @@ public class StocksService {
     public Stocks getStockById(String username, Long stockId) {
         User user = getUserByUsername(username);
         return stocksRepository.findById(stockId)
-                .filter(stock -> stock.getUser_id().getId().equals(user.getId())) // ユーザーの在庫かどうかを確認
+                .filter(stock -> stock.getUser().equals(user)) // ユーザーの在庫かどうかを確認
                 .orElseThrow(() -> new RuntimeException(messageUtils.getMessage("error.stock.not.found")));
     }
 
@@ -79,9 +79,9 @@ public class StocksService {
         Stocks stock = getStockById(username, stockId);
         stock.setAmount(stockDetails.getAmount());
         stock.setPrice(stockDetails.getPrice());
-        stock.setLast_update(stockDetails.getLast_update());
-        stock.setBuy_date(stockDetails.getBuy_date());
-        stock.setExp_date(stockDetails.getExp_date());
+        stock.setLastUpdate(stockDetails.getLastUpdate());
+        stock.setBuyDate(stockDetails.getBuyDate());
+        stock.setExpDate(stockDetails.getExpDate());
         return stocksRepository.save(stock);
     }
 

backend/src/main/java/com/example/todoapp/service/ToBuysService.java

@@ -159,7 +159,7 @@ public class ToBuysService {
      * @param tobuyId 購入リストID
      */
     @Transactional
-    public int deleteToBuyByIds(Long userId, int tobuyId) {
+    public int deleteToBuyByIds(Long userId, Long tobuyId) {
         return toBuysRepository.deleteByUserIdAndTobuyId(userId, tobuyId);
     }