ItemSupplier::~ItemSupplier()
{
// Delete the association from the related objects
if (getSupplier())
getSupplier()->items.erase(this);
if (getItem())
getItem()->suppliers.erase(this);
// Delete all owned purchase operations
while (firstOperation)
delete firstOperation;
// Trigger level and cluster recomputation
HasLevel::triggerLazyRecomputation();
}
DECLARE_EXPORT void ItemSupplier::validate(Action action)
{
// Catch null supplier and item pointers
Supplier *sup = getSupplier();
Item *it = getItem();
Location *loc = getLocation();
if (!sup || !it)
{
// Invalid ItemSupplier model
if (!sup && !it)
throw DataException("Missing supplier and item on a itemsupplier");
else if (!sup)
throw DataException("Missing supplier on a itemsupplier on item '"
+ it->getName() + "'");
else if (!it)
throw DataException("Missing item on a itemsupplier on supplier '"
+ sup->getName() + "'");
}
// Check if a ItemSupplier with 1) identical supplier, 2) identical item
// 3) identical location, and 4) overlapping effectivity dates already exists
Supplier::itemlist::const_iterator i = sup->getItems().begin();
for (; i != sup->getItems().end(); ++i)
if (i->getItem() == it
&& i->getEffective().overlap(getEffective())
&& i->getLocation() == loc
&& &*i != this)
break;
// Apply the appropriate action
switch (action)
{
case ADD:
if (i != sup->getItems().end())
{
throw DataException("ItemSupplier of '" + sup->getName() + "' and '"
+ it->getName() + "' already exists");
}
break;
case CHANGE:
throw DataException("Can't update a itemsupplier");
case ADD_CHANGE:
// ADD is handled in the code after the switch statement
if (i == sup->getItems().end()) break;
throw DataException("Can't update a itemsupplier");
case REMOVE:
// This ItemSupplier was only used temporarily during the reading process
delete this;
if (i == sup->getItems().end())
// Nothing to delete
throw DataException("Can't remove nonexistent itemsupplier of '"
+ sup->getName() + "' and '" + it->getName() + "'");
delete &*i;
return;
}
}