protected virtual void AddEntityFileAttachmentServiceReferenceTemplate(ICmsEntityEditingMetadataContainer container, IPortalContext portal, string entityLogicalName, string idTemplateVariableName = "Id")
        {
            var servicePath = CmsEntityFileAttachmentRouteHandler.GetAppRelativePathTemplate(portal.Website.Id, entityLogicalName, idTemplateVariableName);

            AddServiceReference(container, servicePath, "xrm-uri-template xrm-entity-{0}-attachment-ref".FormatWith(entityLogicalName));
        }
        protected virtual void AddEntityFileAttachmentServiceReference(ICmsEntityEditingMetadataContainer container, IPortalContext portal, EntityReference entity, string title = null)
        {
            var servicePath = CmsEntityFileAttachmentRouteHandler.GetAppRelativePath(portal.Website.Id, entity);

            AddServiceReference(container, servicePath, "xrm-entity-attachment-ref", title);
        }