public async Task <IHttpActionResult> PutAsync(string portalUri, string pageUri, [FromBody] SetPageHeadDto model, CancellationToken cancellationToken)
        {
            if (model == null || !ModelState.IsValid)
            {
                return(BadRequest());
            }
            var portal = await _portalManager.FindByUriAsync(portalUri, cancellationToken);

            await ApiSecurity.AuthorizeAsync(portal, AccessPermission.CanEdit, cancellationToken);

            var page = await _portalManager.GetPageByUriAsync(portal, pageUri, PageField.All, cancellationToken);

            if (page == null)
            {
                return(NotFound());
            }

            ValidationResult validationResult;

            if (model.Uri != null)
            {
                validationResult = await _portalManager.SetPageUriAsync(portal, page, model.Uri, cancellationToken);

                if (!validationResult.Succeeded)
                {
                    return(this.ValidationContent(validationResult));
                }
            }

            page.Name        = model.Name;
            page.Description = model.Description;

            validationResult = await _portalManager.ReplacePageAsync(portal, page, page, cancellationToken);

            if (!validationResult.Succeeded)
            {
                return(this.ValidationContent(validationResult));
            }

            return(Ok(ModelMapper.ToPageDto(page)));
        }