spring-data-rest, manytomany relation with join table
java, spring, spring-data, spring-data-jpa, spring-data-rest
Solution
worked out what the issue was; I need to create a JpaRepository for the Purchase entity. Soon as I added that, the REST links for purchases are available.
Problem
Is it possible to expose a manytomany relationship that uses a join entity (that contains extra data columns), below is my entities; I'm trying to get 'purchases' to show in REST, I've put in 'products' as an example of a working REST mapping; ``` @Entity public class User { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL, targetEntity = Purchase.class, orphanRemoval = true) @JoinColumn(name = "user_id", updatable = false) private List<Purchase> purchases = new ArrayList<>(); @ManyToMany @JoinColumn(name = "user_id", updatable = false) private List<Product> products = new ArrayList<>(); } @Entity public class Product { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; private String name; } @Entity public class Purchase implements Serializable { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) Long id; @ManyToOne @JoinColumn(name = "user_id", referencedColumnName = "id") private User user; @ManyToOne(targetEntity = Prodect.class) @JoinColumn(name = "product_id", referencedColumnName = "id") private Product product; @Column(name = "purchase_date") private Date purchaseDate; } ``` So if i send the REST call; [GET http://localhost:8080/webapp/users/1] It returns links for [http://localhost:8080/webapp/users/1/products] but not for [http://localhost:8080/webapp/users/1/purchases]