public IEnumerable <Triathlon> GetTri(string id, string dateS, string dateE, string place)
{
int i = 0;
var qc = new IMongoQuery[4];
if (id != "")
{
qc[i++] = Query <Triathlon> .EQ(p => p.Id, new ObjectId(id));
}
if (dateS != "")
{
qc[i++] = Query <Triathlon> .GTE(p => p.date, dateS);
}
if (dateE != "")
{
qc[i++] = Query <Triathlon> .LTE(p => p.date, dateE);
}
if (place != "")
{
qc[i++] = Query <Triathlon> .Matches(p => p.place, place);
}
qc = qc.Where(c => c != null).ToArray();
if (qc.Length > 0)
{
return(_db.GetCollection <Triathlon>("Triathlon").Find(Query.And(qc)));
}
else
{
return(_db.GetCollection <Triathlon>("Triathlon").FindAll());
}
}