/// <summary>
 /// Initializes a new instance based on another instance of <see cref="SpaDataModel"/>.
 /// </summary>
 /// <param name="model"></param>
 public SpaDataModel(SpaDataModel model)
 {
     PageId        = model.PageId;
     PageKey       = model.PageKey;
     SiteId        = model.SiteId;
     SiteKey       = model.SiteKey;
     ContentGuid   = model.ContentGuid;
     ExecuteTimeMs = model.ExecuteTimeMs;
     IsCached      = model.IsCached;
     Site          = model.Site;
     Navigation    = model.Navigation;
     Content       = model.Content;
     Meta          = new SpaResponseMeta();
 }
        /// <summary>
        /// Initializes a new instance based on the specified <paramref name="request"/>.
        /// </summary>
        /// <param name="request">An instance of <see cref="SpaRequest"/>.</param>
        public SpaDataModel(SpaRequest request)
        {
            PageId      = request.Content?.Id ?? -1;
            PageKey     = request.Content?.Key ?? Guid.Empty;
            SiteId      = request.Site?.Id ?? -1;
            SiteKey     = request.Site?.Key ?? Guid.Empty;
            ContentGuid = SpaEnvironment.ContentGuid;
            Meta        = new SpaResponseMeta();

            ExecuteTimeMs = -1;

            if (request.Arguments.Parts.Contains(SpaApiPart.Site))
            {
                Site = request.SiteModel;
            }

            if (request.Arguments.Parts.Contains(SpaApiPart.Content))
            {
                Content = request.ContentModel;
            }
        }