public async Task Set <T>(T item, int id) where T : class
{
T output = await context.Set <T>().FindAsync(id);
if (output != null)
{
try
{
context.Entry(output).CurrentValues.SetValues(item);
await context.SaveChangesAsync();
}
catch (Exception E)
{
throw new Exception("400",
new Exception($"New item is invalid: {E.Message}"));
}
}
else
{
throw new Exception("500",
new Exception("querried item does not exist"));
}
}
