public Admin Add(Admin entity)
{
if (entity.AdminId == null || entity.Password == null || entity.AdminId.Length == 0 || entity.Password.Length == 0)
{
throw new Exception("Identifier and Password cannot be empty");
}
try
{
if (_context.Admin.FirstOrDefault(x => x.AdminId == entity.AdminId) == null)
{
var newAdmin = _context.Admin.Add(new Admin()
{
AdminId = entity.AdminId,
Password = GetMD5Hash(entity.Password)
});
_context.SaveChanges();
return(newAdmin);
}
else
{
throw new Exception("Admin Identifier already exists.");
}
}
catch (Exception)
{
throw;
}
}
public virtual User Add(User entity)
{
try
{
if (_context.User.FirstOrDefault(x => x.UserId == entity.UserId) == null)
{
var user = _context.User.Add(entity);
_context.SaveChanges();
return(user);
}
return(null);
}
catch (Exception)
{
throw;
}
}
public virtual Device Add(Device entity)
{
try
{
if (entity.DeviceType == null && entity.DeviceTypeId == 0)
{
throw new Exception("Device.TypeId doesn't exist.");
}
var device = _context.Device.Add(entity);
_context.SaveChanges();
return(device);
}
catch (Exception)
{
throw;
}
}
public virtual DeviceType Add(DeviceType entity)
{
try
{
if (_context.DeviceType.FirstOrDefault(x => x.Type == entity.Type) == null)
{
var deviceType = _context.DeviceType.Add(new DeviceType()
{
Type = entity.Type, Unit = entity.Unit
});
_context.SaveChanges();
return(deviceType);
}
}
catch (Exception)
{
throw;
}
throw new Exception("DeviceType.Type already exists.");
}