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  1. C# Driver
  2. CSHARP-860

asp.net web api / odata $select and datetime queries problems

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    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 1.8, 1.8.1, 1.8.3
    • Component/s: None
    • None

      Hi,

      We use asp.net web api 2 with OData Support and we use $select option on odata, when we try to use $select option we get

      MongoQueryException("Skip and Take may only be used in conjunction with each other and cannot be separated by other operations.");

      but when i comment that line i works correctly.

      Another exception when we try to use OData date time queries is

      Unsupported where clause: ((Nullable<DateTime>)x.StartDate > (Nullable<DateTime>)DateTime:(2013-08-01T00:00:00, Unspecified)).

      so we cannot use date time gt ge or lt le queries and when we add following lines to PredicateTranslator BuildComparrisonQuery function it worlks again.

       BsonSerializationInfo serializationInfo = null;
            var value = constantExpression.Value;

            var unaryExpression = variableExpression as UnaryExpression;
            if (unaryExpression != null && (unaryExpression.NodeType == ExpressionType.Convert || unaryExpression.NodeType == ExpressionType.ConvertChecked))
            {
                if (unaryExpression.Operand.Type.IsEnum)
                {
                    var enumType = unaryExpression.Operand.Type;
                    if (unaryExpression.Type == Enum.GetUnderlyingType(enumType))
                    {
                        serializationInfo = _serializationInfoHelper.GetSerializationInfo(unaryExpression.Operand);
                        value = Enum.ToObject(enumType, value); // serialize enum instead of underlying integer
                    }
                }
                else if (
                    unaryExpression.Type.IsGenericType &&
                    unaryExpression.Type.GetGenericTypeDefinition() == typeof(Nullable<>) &&
                    unaryExpression.Operand.Type.IsGenericType &&
                    unaryExpression.Operand.Type.GetGenericTypeDefinition() == typeof(Nullable<>) &&
                    unaryExpression.Operand.Type.GetGenericArguments()[0].IsEnum)
                {
                    var enumType = unaryExpression.Operand.Type.GetGenericArguments()[0];
                    if (unaryExpression.Type.GetGenericArguments()[0] == Enum.GetUnderlyingType(enumType))
                    {
                        serializationInfo = _serializationInfoHelper.GetSerializationInfo(unaryExpression.Operand);
                        if (value != null)
                        {
                            value = Enum.ToObject(enumType, value); // serialize enum instead of underlying integer
                        }
                    }
                } else {
                    // FIX
                    serializationInfo = _serializationInfoHelper.GetSerializationInfo(unaryExpression.Operand);
                }
            }

      Thanks

            Assignee:
            Unassigned Unassigned
            Reporter:
            hyurtseven@dogantv.com.tr Huseyin Yurtseven
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              Created:
              Updated:
              Resolved: