private static bool AddNewStreetBuilding(ref StreetBuildingData st)
{
using (var db = new StreetsBuildingDataContext()) {
var s = StreetBuildingData.Copy(st);
var q = from x in db.StreetsBuildingItems
where x.TerritoyrCardId.Equals(s.TerritoyrCardId) &&
x.Street.Equals(s.Street) &&
x.BuildingNumber.Equals(s.BuildingNumber)
select x;
if (q.Any())
throw new StreetBuildingAlreadyExistsException();
db.StreetsBuildingItems.InsertOnSubmit(s);
db.SubmitChanges();
st.ItemId = s.ItemId;
return st.ItemId >= 0;
}
}
private static bool UpdateStreetBuilding(ref StreetBuildingData st)
{
using (var db = new StreetsBuildingDataContext()) {
try {
var i = st.ItemId;
var stEx = db.StreetsBuildingItems.Single(s => s.ItemId == i);
stEx.BuildingNumber = st.BuildingNumber;
stEx.DateCreated = st.DateCreated;
stEx.Street = st.Street;
stEx.TerritoyrCardId = st.TerritoryCardId;
db.SubmitChanges();
return true;
} catch (InvalidOperationException) {
throw new StreetBuildingItemDoesntExistException();
}
}
}