###Spring Data JPAのテーブルでユニークな属性を持ちたい
多対多のテーブルで、insertの制御がしたいです。
###発生している問題・エラーメッセージ
ユニーク属性が保てていません。
想定
Room id, name 1, tubaki 2, sakura Equipment id, name 1, fork 2, spoon Quota(交差テーブル) room_id, equipment_id 1, 1 1, 2 2, 1
Equipment id, name 1, fork 2, spoon 3, fork Quota room_id, equipment_id 1, 1 1, 2 2, 3
となってしまいます。
###該当のソースコード
java
1 public class Room implements Serializable { 2 @Id 3 @GeneratedValue 4 @Column(name = "room_id") 5 private Integer roomId; 6 7 @NotNull 8 @Column(unique = true) 9 private String roomName; 10 11 private Integer capacity; 12 13 @ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER) 14 @JoinTable( 15 name = "quota", 16 joinColumns = {@JoinColumn(name = "room_id", referencedColumnName = "room_id")}, 17 inverseJoinColumns = {@JoinColumn(name = "equipment_id", referencedColumnName = "equipment_id")} 18 ) 19 private List<Equipment> equipments; 20 /* 以下getter, setter */
java
1 @Entity 2 public class Equipment implements Serializable { 3 @Id 4 @GeneratedValue 5 @Column(name = "equipment_id") 6 private Integer equipmentId; 7 8 @Column 9 private String equipmentName; 10 11 @ManyToMany(mappedBy = "equipments") 12 private List<Room> rooms; 13 /* 以下 getter, setter */
正規化のmigrateを想定しています。migrate(insert)のコードはこちらになります。
java
1 public void migrate() { 2 roomService.truncateRoom(); 3 4 equipmentRoomRepository.findAll().stream().collect( 5 Collectors.groupingBy(EquipmentRoom::getRoomName) 6 ).forEach((roomName, equipmentRooms) -> { 7 int capacity = equipmentRooms.get(0).getCapacity(); 8 9 List<Equipment> equipments = equipmentRooms.stream() 10 .map(equipmentRoom -> new Equipment(equipmentRoom.getEquipmentName())) 11 .collect(Collectors.toList()); 12 13 roomRepository.save(new Room(roomName, capacity, equipments)); 14 15 }); 16 }
テストコードです。
java
1 private static final List<EquipmentRoom> equipmentRooms = Arrays.asList( 2 new EquipmentRoom("sakura", 2, "fork"), 3 new EquipmentRoom("sakura", 2, "spoon"), 4 new EquipmentRoom("tsubaki", 3, "fork") 5 ); 6 7 @Before 8 public void SetUp() { 9 equipmentRoomRepository.truncateTable(); 10 equipmentRoomRepository.save(equipmentRooms); 11 } 12 13 @Test 14 public void migrateTest() { 15 equipmentRoomMigrateService.migrate();
ご教授よろしくお願いします。
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