public static List<HouseModel> GetAllHouses()
{
using (var db = new SystemDBContext())
{
return db.Houses.ToList();
}
}
public List<TestModel> GetTestModel()
{
using (var db = new SystemDBContext())
{
return db.TestModels.ToList();
}
}
public static void InsertHouseModel(HouseModel model)
{
using (var db = new SystemDBContext())
{
db.Houses.Add(model);
db.SaveChanges();
}
}
private static bool CheckTableExists()
{
var context = new SystemDBContext();
try
{
context.Houses.Count();
return true;
}
catch (Exception)
{
return false;
}
}
public static void UpdateDatabase(string csv_file_path)
{
var data = getCSVContent(csv_file_path);
var houseModel = GetHouseModel(data);
using (var db = new SystemDBContext())
{
if (!CheckTableExists())
return;
var dbHouses = db.Houses.Select(x => x.Hash).ToList();
foreach (var house in houseModel.Where(house => !dbHouses.Contains(house.Hash)))
{
db.Houses.Add(house);
}
db.SaveChanges();
}
}
public static List<HouseModel> GetHouseNear(HouseLocalizationRequest request)
{
using (var db = new SystemDBContext())
{
var dbHouses = db.Houses.ToList();
var result = new List<HouseModel>();
foreach (var house in dbHouses)
{
if (house.Lat != "" && house.Lon != "")
{
var deltaLon = double.Parse(house.Lon) - request.lonStart;
var deltaLat = double.Parse(house.Lat) - request.latStart;
if(Math.Sqrt(Math.Pow(deltaLat,2) + Math.Pow(deltaLon, 2)) <= request.radius)
result.Add(house);
}
}
return result;
}
}
