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wtf.cs

        private Expression<Func<ActivityHistory, bool>> GetSearchActivityExpression(ActivityHistorySearchParameters searchParameters, ActivityHistorySearchIdLists idLists)
        {

            return x => ((!searchParameters.DateFrom.HasValue || (DbFunctions.TruncateTime(x.CreatedDate) >= DbFunctions.TruncateTime(searchParameters.DateFrom.Value))) 
                         && (!searchParameters.DateTo.HasValue || (DbFunctions.TruncateTime(x.CreatedDate) <= DbFunctions.TruncateTime(searchParameters.DateTo.Value)))) &&
                        ((searchParameters.ActionByCustomerId.HasValue && x.ActionByCustomerId.HasValue && searchParameters.ActionByCustomerId.Value == x.ActionByCustomerId.Value) || !searchParameters.ActionByCustomerId.HasValue) && // SystemAdmin are the only one without a CustomerId, they can see everything
                        ((searchParameters.ActionByDepartmentId.HasValue && x.ActionByDepartmentId.HasValue && searchParameters.ActionByDepartmentId.Value == x.ActionByDepartmentId.Value) || !searchParameters.ActionByDepartmentId.HasValue) &&
                        (!searchParameters.ActionType.HasValue || x.ActionType == searchParameters.ActionType) &&
                        (!searchParameters.ActionSubType.HasValue || x.ActionSubType == searchParameters.ActionSubType) &&
                        (searchParameters.ActionByName == null || searchParameters.ActionByName == "" ||
                         x.ActionByType == ActivityHistoryObjectType.User && idLists.UserByList.Contains(x.ActionById) ||
                         x.ActionByType == ActivityHistoryObjectType.Carrier && idLists.CarrierByList.Contains(x.ActionById)) &&
                        (searchParameters.ActionOnName == null || searchParameters.ActionOnName == "" ||
                         (x.ActionOnId.HasValue && x.ActionOnType.HasValue &&
                         ((idLists.UserOnList.Contains(x.ActionOnId.Value) && x.ActionOnType.Value == ActivityHistoryObjectType.User) ||
                          (idLists.CarrierOnList.Contains(x.ActionOnId.Value) && x.ActionOnType.Value == ActivityHistoryObjectType.Carrier) ||
                          (idLists.DepartmentOnList.Contains(x.ActionOnId.Value) && x.ActionOnType.Value == ActivityHistoryObjectType.Department) ||
                          (idLists.DeviceOnList.Contains(x.ActionOnId.Value) && x.ActionOnType.Value == ActivityHistoryObjectType.Device)))) &&
                        (x.ActionById != 0 && x.ActionOnId != 0);
        }