public static StreetBuildingData GetStreetBuilding(int itemId)
{
using (var db = new StreetsBuildingDataContext()) {
try {
var s = db.StreetsBuildingItems.Single(r => r.ItemId == itemId);
return(StreetBuildingData.Copy(s));
} catch (InvalidOperationException) {
throw new StreetBuildingItemDoesntExistException();
}
}
}
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);
}
}