public static void AddRoad(DTO.Road newRoad)
{
CitiesAndRoadsDbContext db = new CitiesAndRoadsDbContext();
if (newRoad.Length == 0)
{
throw new CustomException("Road requires actual length.");
}
if (newRoad.SideCityOneId == newRoad.SideCityTwoId)
{
throw new CustomException("Cities must be different.");
}
if (DoesRoadExist(newRoad, db))
{
throw new CustomException("Road already exist.");
}
var road = new Road();
road.Length = newRoad.Length;
road.SideCityOneId = newRoad.SideCityOneId;
road.SideCityTwoId = newRoad.SideCityTwoId;
db.Roads.Add(road);
db.SaveChanges();
}
private static bool DoesRoadExist(DTO.Road newRoad, CitiesAndRoadsDbContext db)
{
return(db.Roads.Any(r =>
(r.SideCityOneId == newRoad.SideCityOneId &&
r.SideCityTwoId == newRoad.SideCityTwoId) ||
(r.SideCityOneId == newRoad.SideCityTwoId &&
r.SideCityTwoId == newRoad.SideCityOneId)));
}
public static void SetLogisticCenter(DTO.City logisticCenter)
{
CitiesAndRoadsDbContext db = new CitiesAndRoadsDbContext();
logisticCenter.IsLogisticCenter = true;
var city = db.Cities.First(c => c.Id == logisticCenter.Id);
city.IsLogisticCenter = logisticCenter.IsLogisticCenter;
db.SaveChanges();
}
public static List <DTO.City> GetCities()
{
CitiesAndRoadsDbContext db = new CitiesAndRoadsDbContext();
List <City> dbCities = db.Cities.OrderBy(c => c.Name).ToList();
List <DTO.City> dtoCities = new List <DTO.City>();
foreach (City item in dbCities)
{
var city = new DTO.City();
city.Id = item.Id;
city.Name = item.Name;
city.IsLogisticCenter = item.IsLogisticCenter;
dtoCities.Add(city);
}
return(dtoCities);
}
public static void AddCity(DTO.City newCity)
{
CitiesAndRoadsDbContext db = new CitiesAndRoadsDbContext();
if (String.IsNullOrWhiteSpace(newCity.Name))
{
throw new CustomException("City requires Name.");
}
if (DoesCityExist(newCity, db))
{
throw new CustomException("City already exists.");
}
var city = new City();
city.Name = newCity.Name;
db.Cities.Add(city);
db.SaveChanges();
}
public static List <DTO.Road> GetRoads()
{
CitiesAndRoadsDbContext db = new CitiesAndRoadsDbContext();
List <Road> dbRoads = db.Roads.Include("SideCityOne").Include("SideCityTwo").OrderBy(r => r.Length).ToList();
List <DTO.Road> dtoRoads = new List <DTO.Road>();
foreach (Road item in dbRoads)
{
var road = new DTO.Road();
road.Id = item.Id;
road.Length = item.Length;
road.SideCityOneId = item.SideCityOneId;
road.SideCityOneName = item.SideCityOne.Name;
road.SideCityTwoId = item.SideCityTwoId;
road.SideCityTwoName = item.SideCityTwo.Name;
dtoRoads.Add(road);
}
return(dtoRoads);
}
private static bool DoesCityExist(DTO.City newCity, CitiesAndRoadsDbContext db)
{
return(db.Cities.Any(c => c.Name == newCity.Name));
}
