FK name fix

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

@@ -62,7 +62,7 @@ public class Stocks {
      @ManyToOne(fetch = FetchType.LAZY)
      @JoinColumn(
          name = "user_id",
-         referencedColumnName = "user_id",
+         referencedColumnName = "id",
          nullable = false
      )
     private User user_id;
@@ -94,7 +94,7 @@ public class Stocks {
     /**
      * 賞味期限
      */
-    @Column(nullable = false)
+    @Column(nullable = true)
     private LocalDate exp_date;
 
 }

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

@@ -58,7 +58,7 @@ public class ToBuys {
      @ManyToOne(fetch = FetchType.LAZY)
      @JoinColumn(
          name = "user_id",
-         referencedColumnName = "user_id",
+         referencedColumnName = "id",
          nullable = false
      )
     private User user_id;
@@ -73,9 +73,8 @@ public class ToBuys {
      /**
      * 購入するお店
      */
-    @NotBlank
     @Column(nullable = true)
-    private String store;
+    private String shop;
 
 }