/// <summary>
        /// Gets a list of groups surrounding the specified geopoint of the specified GroupTypeid
        /// If geofenceGroupTypeId is specified, the list of GeoFence groups will be returned with the groups as child groups of that geofence group.
        /// </summary>
        /// <param name="groupTypeId">The group type identifier.</param>
        /// <param name="geoPoint">The geo point.</param>
        /// <param name="sortByDistance">if set to <c>true</c> [sort by distance].</param>
        /// <param name="maxDistanceMiles">The maximum distance miles.</param>
        /// <param name="geofenceGroupTypeId">The geofence group type identifier.</param>
        /// <param name="queryOptions">The query options.</param>
        /// <returns></returns>
        private IQueryable GetByGeoPoint( int groupTypeId, DbGeography geoPoint, bool? sortByDistance, double? maxDistanceMiles, int? geofenceGroupTypeId, System.Web.Http.OData.Query.ODataQueryOptions<Group> queryOptions )
        {
            var rockContext = (RockContext)Service.Context;
            IEnumerable<Group> resultGroups = new List<Group>();

            if ( geoPoint != null )
            {
                if ( geofenceGroupTypeId.HasValue && geofenceGroupTypeId.Value > 0 )
                {
                    var fenceGroups = new List<Group>();

                    // Find all the groupLocation records ( belonging to groups of the "geofenceGroupType" )
                    // where the geofence surrounds the location
                    var groupLocationService = new GroupLocationService( rockContext );
                    foreach ( var fenceGroupLocation in groupLocationService
                        .Queryable( "Group,Location" ).AsNoTracking()
                        .Where( gl =>
                            gl.Group.GroupTypeId == geofenceGroupTypeId &&
                            gl.Location.GeoFence != null &&
                            geoPoint.Intersects( gl.Location.GeoFence ) )
                        .ToList() )
                    {
                        var fenceGroup = fenceGroups.FirstOrDefault( g => g.Id == fenceGroupLocation.GroupId );
                        if ( fenceGroup == null )
                        {
                            fenceGroup = fenceGroupLocation.Group;
                            fenceGroups.Add( fenceGroup );
                        }

                        fenceGroupLocation.Group = null;

                        // Find all the group groupLocation records ( with group of the "groupTypeId" ) that have a location
                        // within the fence
                        foreach ( var group in Service
                            .Queryable( "Schedule,GroupLocations.Location" ).AsNoTracking()
                            .Where( g =>
                                g.GroupTypeId == groupTypeId &&
                                g.GroupLocations.Any( gl =>
                                    gl.Location.GeoPoint != null &&
                                    gl.Location.GeoPoint.Intersects( fenceGroupLocation.Location.GeoFence ) ) ) )
                        {
                            // Remove any other group locations that do not belong to fence
                            foreach ( var gl in group.GroupLocations.ToList() )
                            {
                                if ( gl.Location.GeoPoint == null ||
                                    !gl.Location.GeoPoint.Intersects( fenceGroupLocation.Location.GeoFence ) )
                                {
                                    group.GroupLocations.Remove( gl );
                                }
                            }

                            fenceGroup.Groups.Add( group );
                        }
                    }

                    resultGroups = fenceGroups;
                }
                else
                {
                    // if a geoFence is not specified, just get all groups of this group type
                    resultGroups = Service.Queryable( "Schedule,GroupLocations.Location" ).AsNoTracking().Where( a => a.GroupTypeId == groupTypeId ).Include( a => a.GroupLocations ).ToList();
                }
            }

            // calculate the distance of each of the groups locations from the specified geoFence
            foreach ( var group in resultGroups )
            {
                foreach ( var gl in group.GroupLocations )
                {
                    // Calculate distance
                    if ( gl.Location.GeoPoint != null )
                    {
                        double meters = gl.Location.GeoPoint.Distance( geoPoint ) ?? 0.0D;
                        gl.Location.SetDistance( meters * Location.MilesPerMeter );
                    }
                }
            }

            // remove groups that don't have a GeoPoint
            resultGroups = resultGroups.Where( a => a.GroupLocations.Any( x => x.Location.GeoPoint != null ) );

            // remove groups that don't have a location within the specified radius
            if ( maxDistanceMiles.HasValue )
            {
                resultGroups = resultGroups.Where( a => a.GroupLocations.Any( x => x.Location.Distance <= maxDistanceMiles.Value ) );
            }

            var querySettings = new System.Web.Http.OData.Query.ODataQuerySettings();
            if ( sortByDistance.HasValue && sortByDistance.Value )
            {
                resultGroups = resultGroups.OrderBy( a => a.GroupLocations.FirstOrDefault() != null ? a.GroupLocations.FirstOrDefault().Location.Distance : int.MaxValue ).ToList();

                // if we are sorting by distance, tell OData not to re-sort them by Id
                querySettings.EnsureStableOrdering = false;
            }

            // manually apply any OData parameters to the InMemory Query
            var qryResults = queryOptions.ApplyTo( resultGroups.AsQueryable(), querySettings );

            return qryResults.AsQueryable();
        }
        /// <summary>
        /// Gets the collection of records for the requested entity set and specified OData query options.
        /// </summary>
        /// <param name="model"><see cref="IEdmModel"/></param>
        /// <param name="entitySetName">Name of the entity set</param>
        /// <param name="queryOptions"><see cref="System.Web.Http.OData.Query.ODataQueryOptions"/></param>
        /// <param name="querySettings"><see cref="System.Web.Http.OData.Query.ODataQuerySettings"/></param>
        /// <param name="request"><see cref="HttpRequestMessage"/></param>
        /// <returns><see cref="EdmEntityObjectCollection"/></returns>
        public virtual EdmEntityObjectCollection SelectMultiple(IEdmModel model, string entitySetName, System.Web.Http.OData.Query.ODataQueryOptions queryOptions, System.Web.Http.OData.Query.ODataQuerySettings querySettings, HttpRequestMessage request)
        {
            var edmEntitySchemaType             = model.FindDeclaredType(string.Format("{0}.{1}", NamespaceName, entitySetName));
            var edmEntityType                   = edmEntitySchemaType as IEdmEntityType;
            var entityListIdProperty            = edmEntityType.FindProperty("list-id") as IEdmStructuralProperty;
            var entityListIdString              = entityListIdProperty.DefaultValueString;
            var viewIdProperty                  = edmEntityType.FindProperty("view-id") as IEdmStructuralProperty;
            var viewIdString                    = viewIdProperty.DefaultValueString;
            var entityPermissionEnabledProperty =
                edmEntityType.FindProperty("entity-permissions-enabled") as IEdmStructuralProperty;
            bool entityPermissionsEnabled;

            bool.TryParse(entityPermissionEnabledProperty.DefaultValueString, out entityPermissionsEnabled);

            Guid viewId;

            Guid.TryParse(viewIdString, out viewId);
            var view        = GetView(viewId);
            var viewColumns = view.Columns.ToList();
            var fetch       = Fetch.Parse(view.FetchXml);

            queryOptions.ApplyTo(querySettings, fetch);
            var serviceContext = this.Dependencies.GetServiceContext();

            // If Entity Permissions on the view was enabled then restrict add entity Permissions to Fetch
            if (entityPermissionsEnabled)
            {
                var crmEntityPermissionProvider = new CrmEntityPermissionProvider();
                var perm = crmEntityPermissionProvider.TryApplyRecordLevelFiltersToFetch(
                    serviceContext,
                    CrmEntityPermissionRight.Read,
                    fetch);

                // Ensure the user has permissions to request read access to the entity.
                if (!perm.PermissionGranted && !perm.GlobalPermissionGranted)
                {
                    ADXTrace.Instance.TraceWarning(
                        TraceCategory.Exception,
                        string.Format(
                            "Access to oData, with the entity set name of '{0}', has been denied for the user with the following webroles: '{1}' due to entity permissions. Grant the webroles read access to the entityset if this was not an error.",
                            entitySetName,
                            string.Join("', '", crmEntityPermissionProvider.CurrentUserRoleNames)));
                    throw new SecurityAccessDeniedException();
                }
            }

            var dataSchemaType          = model.FindDeclaredType(string.Format("{0}.{1}", NamespaceName, entitySetName));
            var dataEntityType          = dataSchemaType as IEdmEntityType;
            var dataEntityTypeReference = new EdmEntityTypeReference(dataEntityType, true);
            var collection = new EdmEntityObjectCollection(new EdmCollectionTypeReference(new EdmCollectionType(dataEntityTypeReference), true));
            var entityReferenceSchemaType           = model.FindDeclaredType(string.Format("{0}.{1}", NamespaceName, "EntityReference"));
            var entityReferenceComplexType          = entityReferenceSchemaType as IEdmComplexType;
            var entityReferenceComplexTypeReference = new EdmComplexTypeReference(entityReferenceComplexType, true);
            var optionSetSchemaType           = model.FindDeclaredType(string.Format("{0}.{1}", NamespaceName, "OptionSet"));
            var optionSetComplexType          = optionSetSchemaType as IEdmComplexType;
            var optionSetComplexTypeReference = new EdmComplexTypeReference(optionSetComplexType, true);
            var entityCollection = fetch.Execute(serviceContext as IOrganizationService);

            if (entityCollection == null)
            {
                return(collection);
            }

            var records = entityCollection.Entities;

            foreach (var record in records)
            {
                var entityObject = BuildEdmEntityObject(record, view, viewColumns, dataEntityTypeReference, entityReferenceComplexTypeReference, optionSetComplexTypeReference, entityListIdString, viewIdString);
                collection.Add(entityObject);
            }

            if (entityCollection.MoreRecords && querySettings.PageSize.HasValue && querySettings.PageSize > 0)
            {
                var nextPageLink = ODataQueryOptionExtensions.GetNextPageLink(request, querySettings.PageSize.Value);
                request.SetNextPageLink(nextPageLink);
            }

            if (entityCollection.TotalRecordCount > 0)
            {
                request.SetInlineCount(entityCollection.TotalRecordCount);
            }

            return(collection);
        }