public async Task AddGathering(string username, string password, GatheringItemIn gathering)
{
if (!await Logic.CheckAdmin(Output, username, password))
{
throw new Exception("403", new Exception("this request must be made with admin permitions"));
}
if (null != await Output.GetFind <Gathering>(x => x.Title == gathering.Title))
{
throw new Exception("409", new Exception("A gathering of this title allready exists"));
}
var inGathering = gathering.ToData();
inGathering.MapDataId = await Logic.CityId(Output, gathering.City);
inGathering.organizerId = (await Logic.Login(Output, username, password)).Id;
await Input.Add(inGathering);
}
