コード例 #1
0
        private static ExpandedProjectionNode ApplyProjectionForProperty(ExpandedProjectionNode parentNode, string propertyName, ResourceProperty property, ResourceType targetResourceType, bool lastPathSegment)
        {
            if (property != null)
            {
                switch (property.TypeKind)
                {
                case ResourceTypeKind.ComplexType:
                    if (!lastPathSegment)
                    {
                        throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_ComplexPropertyAsInnerSelectSegment(targetResourceType.FullName, propertyName));
                    }
                    break;

                case ResourceTypeKind.Primitive:
                    if (!lastPathSegment)
                    {
                        if (property.IsOfKind(ResourcePropertyKind.Stream))
                        {
                            throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_NamedStreamMustBeLastSegmentInSelect(propertyName));
                        }
                        throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_PrimitivePropertyUsedAsNavigationProperty(targetResourceType.FullName, propertyName));
                    }
                    break;

                case ResourceTypeKind.Collection:
                    if (!lastPathSegment)
                    {
                        throw DataServiceException.CreateBadRequestError(System.Data.Services.Strings.RequestQueryProcessor_CollectionPropertyAsInnerSelectSegment(targetResourceType.FullName, propertyName));
                    }
                    break;
                }
            }
            ExpandedProjectionNode node = parentNode.AddProjectionNode(propertyName, property, targetResourceType, lastPathSegment);

            if (lastPathSegment && (node != null))
            {
                node.ProjectionFound = true;
                node.MarkSubtreeAsProjected();
            }
            return(node);
        }