1. Determine whether two start and end times intersect:
public static bool IsTimeBetween(TimeSpan input, TimeSpan start, TimeSpan end, bool fromInclusice, bool toInclusive) { //http://www.php.cn/ // see if start comes before end if (end < start) { return ((toInclusive && (input <= end)) || (!toInclusive && (input < end))) || ((fromInclusice && (input >= start)) || (!fromInclusice && (input > start))); } else { return ((fromInclusice && (input >= start)) || (!fromInclusice && (input > start))) && ((toInclusive && (input <= end)) || (!toInclusive && (input < end))); } }
2. Pass in the expression of the start and end times, determine the intersection with the known time period, and generate a Mongo query:
public IMongoQuery GetMongoQueryIntersectWith<TCollection>( Expression<Func<TCollection, DateTime>> fromExp, Expression<Func<TCollection, DateTime>> toExp) { var rangeTo = Query.And(Query<TCollection>.GTE(toExp, To), Query<TCollection>.LTE(fromExp, To)); var rangeFrom = Query.And(Query<TCollection>.GTE(toExp, From), Query<TCollection>.LTE(fromExp, From)); var rangeQuery = Query.Or(rangeTo, rangeFrom, Query.And(Query<TCollection>.GTE(fromExp, From),Query<TCollection>.LTE(toExp, To))); return rangeQuery; }
From and To are two time attributes
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