public void create(Proveedores proveedores) {
if (proveedores.getFacturasCollection() == null) {
proveedores.setFacturasCollection(new ArrayList<Facturas>());
}
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Collection<Facturas> attachedFacturasCollection = new ArrayList<Facturas>();
for (Facturas facturasCollectionFacturasToAttach : proveedores.getFacturasCollection()) {
facturasCollectionFacturasToAttach =
em.getReference(
facturasCollectionFacturasToAttach.getClass(),
facturasCollectionFacturasToAttach.getId());
attachedFacturasCollection.add(facturasCollectionFacturasToAttach);
}
proveedores.setFacturasCollection(attachedFacturasCollection);
em.persist(proveedores);
for (Facturas facturasCollectionFacturas : proveedores.getFacturasCollection()) {
Proveedores oldIdProveedorOfFacturasCollectionFacturas =
facturasCollectionFacturas.getIdProveedor();
facturasCollectionFacturas.setIdProveedor(proveedores);
facturasCollectionFacturas = em.merge(facturasCollectionFacturas);
if (oldIdProveedorOfFacturasCollectionFacturas != null) {
oldIdProveedorOfFacturasCollectionFacturas
.getFacturasCollection()
.remove(facturasCollectionFacturas);
oldIdProveedorOfFacturasCollectionFacturas =
em.merge(oldIdProveedorOfFacturasCollectionFacturas);
}
}
em.getTransaction().commit();
} finally {
if (em != null) {
em.close();
}
}
}
public void edit(Proveedores proveedores)
throws IllegalOrphanException, NonexistentEntityException, Exception {
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Proveedores persistentProveedores = em.find(Proveedores.class, proveedores.getId());
Collection<Facturas> facturasCollectionOld = persistentProveedores.getFacturasCollection();
Collection<Facturas> facturasCollectionNew = proveedores.getFacturasCollection();
List<String> illegalOrphanMessages = null;
for (Facturas facturasCollectionOldFacturas : facturasCollectionOld) {
if (!facturasCollectionNew.contains(facturasCollectionOldFacturas)) {
if (illegalOrphanMessages == null) {
illegalOrphanMessages = new ArrayList<String>();
}
illegalOrphanMessages.add(
"You must retain Facturas "
+ facturasCollectionOldFacturas
+ " since its idProveedor field is not nullable.");
}
}
if (illegalOrphanMessages != null) {
throw new IllegalOrphanException(illegalOrphanMessages);
}
Collection<Facturas> attachedFacturasCollectionNew = new ArrayList<Facturas>();
for (Facturas facturasCollectionNewFacturasToAttach : facturasCollectionNew) {
facturasCollectionNewFacturasToAttach =
em.getReference(
facturasCollectionNewFacturasToAttach.getClass(),
facturasCollectionNewFacturasToAttach.getId());
attachedFacturasCollectionNew.add(facturasCollectionNewFacturasToAttach);
}
facturasCollectionNew = attachedFacturasCollectionNew;
proveedores.setFacturasCollection(facturasCollectionNew);
proveedores = em.merge(proveedores);
for (Facturas facturasCollectionNewFacturas : facturasCollectionNew) {
if (!facturasCollectionOld.contains(facturasCollectionNewFacturas)) {
Proveedores oldIdProveedorOfFacturasCollectionNewFacturas =
facturasCollectionNewFacturas.getIdProveedor();
facturasCollectionNewFacturas.setIdProveedor(proveedores);
facturasCollectionNewFacturas = em.merge(facturasCollectionNewFacturas);
if (oldIdProveedorOfFacturasCollectionNewFacturas != null
&& !oldIdProveedorOfFacturasCollectionNewFacturas.equals(proveedores)) {
oldIdProveedorOfFacturasCollectionNewFacturas
.getFacturasCollection()
.remove(facturasCollectionNewFacturas);
oldIdProveedorOfFacturasCollectionNewFacturas =
em.merge(oldIdProveedorOfFacturasCollectionNewFacturas);
}
}
}
em.getTransaction().commit();
} catch (Exception ex) {
String msg = ex.getLocalizedMessage();
if (msg == null || msg.length() == 0) {
Integer id = proveedores.getId();
if (findProveedores(id) == null) {
throw new NonexistentEntityException(
"The proveedores with id " + id + " no longer exists.");
}
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}