public bool Exists(ConnectedPair item)
{
using (var db = new DataBaseContext())
{
return(db.ConnectedPairs.Any(x => x.AltCoin == item.AltCoin && x.MainCoin == item.MainCoin));
}
}
public ConnectedPair Create(ConnectedPair item)
{
using (var db = new DataBaseContext())
{
ConnectedPair result = null;
if (!Exists(item))
{
result = db.ConnectedPairs.Add(item).Entity;
}
db.SaveChanges();
return(result);
}
}
public ConnectedPair Update(ConnectedPair item)
{
using (var db = new DataBaseContext())
{
var result = db.ConnectedPairs.FirstOrDefault(x => x.MainCoin == item.MainCoin && x.AltCoin == item.AltCoin);
if (result != null)
{
result.MainCoin = item.MainCoin;
result.AltCoin = item.AltCoin;
result.Active = item.Active;
}
db.SaveChanges();
return(result);
}
}