I'm developing an e-commerce platform. I have a "Product" entity as a parent and "Pimage" entities as childs.
I have a CrudRepository for both entities.
The entities are modelled in this way:
public class Product implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private BigInteger id;
// ....
//bi-directional many-to-one association to Pimage
@OneToMany(cascade = {CascadeType.ALL,CascadeType.PERSIST,CascadeType.MERGE}, mappedBy="product")
private List<Pimage> pimages = new LinkedList<Pimage>();
public List<Pimage> getPimages() {
return this.pimages;
}
public void setPimages(List<Pimage> pimages) {
this.pimages = pimages;
}
public Pimage addPimage(Pimage pimage) {
getPimages().add(pimage);
pimage.setProduct(this);
return pimage;
}
//....
public class Pimage implements Serializable {
private static final long serialVersionUID = 1L;
// ...
@ManyToOne
@JoinColumn(name="productid")
private Product product;
// ...
@RepositoryRestResource(exported=false)
public interface PimagesRepository extends PagingAndSortingRepository<Pimage, BigInteger> {
}
Now, if I send a PUT request like this:
{
"description": "Description of new product",
"title": "Title of new product",
"price": 200,
"pimages" : [
{
"path": "path to the image file"
}
]
}
I can see in the db that the Product entity is saved, and the Pimage entity is saved too, but the PImage entity have the "productid" value at null.
How can I have the productid saved in the "productid" field of my Pimage entity?
If I try to do it manually with something like this, everything is ok and the productid field of PImage is correctly set:
Product p = new Product();
Pimage pi = new Pimage();
p.setDescription("Description from testcase");
p.setTitle("Title from testcase");
p.setPrice(50f);
pi.setPath("image path from testcase");
p.addPimage(pi);
Product saved= pr.save(p);
Thank you in advance.
