addAll method
Like add, but for multiple target objects.
Implementation
@override
void addAll(Iterable<EntityT> iterable) {
iterable.forEach(_track);
if (__items == null) {
// We don't need to load old data from DB to add new items.
_addedBeforeLoad.addAll(iterable);
} else {
_items.addAll(iterable);
}
}