protected object[] ChangeReference(PXGraph graph, DacReference reference, object childEntity, object newId)
{
PXCache cache = graph.Caches[reference.ReferenceField.DeclaringType];
string changingFieldName = reference.ReferenceField.Name;
Func <object, object[]> keysSelector = (item) => cache.Keys.Select(k => cache.GetValue(item, k)).ToArray();
//for selectors
cache.Current = childEntity;
object oldValue = cache.GetValue(childEntity, changingFieldName);
if (oldValue != null && oldValue.Equals(newId) ||
oldValue == null && newId == null)
{
return(keysSelector(childEntity));
}
//setting ordinary value
if (cache.Keys.All(k => k.ToLower() != changingFieldName.ToLower()))
{
cache.SetValueExt(childEntity, changingFieldName, newId);
cache.SetStatus(childEntity, PXEntryStatus.Updated);
return(keysSelector(childEntity));
}
//setting value that is part of PK key
//if it is identity column, it would be changed after insert
object newItem = cache.CreateCopy(childEntity);
cache.SetValueExt(newItem, changingFieldName, newId);
//resetting keys to persist new entity
string[] identityKeys = cache.Keys.Where(k => cache.GetAttributesReadonly(newItem, k)
.OfType <PXDBIdentityAttribute>()
.Any()).ToArray();
identityKeys.ForEach(k => cache.SetValueExt(newItem, k, null));
cache.Update(newItem);
cache.SetStatus(childEntity, PXEntryStatus.Deleted);
EntityForIdentityInserting(graph, newItem);
/*cache.PersistInserted(newItem);
* cache.SetStatus(newItem, PXEntryStatus.Notchanged);*/
return(keysSelector(newItem));
}
private void AddToFieldSetters(DacReference reference, MergerRelationPair merger)
{
if (_fieldSetters.ContainsKey(reference.TargetField))
{
_fieldSetters[reference.TargetField].Add(merger);
}
else
{
_fieldSetters.Add(reference.TargetField, new List <MergerRelationPair> {
merger
});
}
if (_fieldSetters.ContainsKey(reference.ReferenceField))
{
_fieldSetters[reference.ReferenceField].Add(merger);
}
else
{
_fieldSetters.Add(reference.ReferenceField, new List <MergerRelationPair> {
merger
});
}
}
