Error executing template "Designs/Swift/Paragraph/Swift_ArticleList_Custom.cshtml"
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Dynamicweb.Content.Items.Queries.Repository.IsPageAllowed(Page page)
   at Dynamicweb.Content.Items.Queries.Repository.GetPagesByIds(IEnumerable`1 parentIds, Boolean includeChildItems, Boolean checkPermissions, List`1& childPages)
   at Dynamicweb.Content.Items.Queries.Repository.SelectByParentPageIds(IEnumerable`1 parentIds, Query query, Boolean includeParagraphs, Boolean includeChildItems, Boolean checkPermissions, Boolean includeInheritedItems)
   at Dynamicweb.ItemPublisher.Frontend.GetItems()
   at Dynamicweb.ItemPublisher.Frontend.List()
   at Dynamicweb.ItemPublisher.Frontend.GetContent()
   at Dynamicweb.ItemPublisher.Frontend.GetContentBySettings(String settings)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at Dynamicweb.Extensibility.AddIns.AddInManager.InvokeFunction(Object instance, String functionName, Object[] arguments)
   at Dynamicweb.Rendering.TemplateBase`1.RenderItemList(Object settings)
   at CompiledRazorTemplates.Dynamic.RazorEngine_a194e9970fb24b959f5a89d2f97a27f6.<>c__DisplayClass3_0.<RenderArticleList>b__0(TextWriter __razor_helper_writer) in F:\Dynamicweb\Solutions\Production\Files\Templates\Designs\Swift\Paragraph\Swift_ArticleList_Custom.cshtml:line 285
   at CompiledRazorTemplates.Dynamic.RazorEngine_a194e9970fb24b959f5a89d2f97a27f6.Execute() in F:\Dynamicweb\Solutions\Production\Files\Templates\Designs\Swift\Paragraph\Swift_ArticleList_Custom.cshtml:line 209
   at RazorEngine.Templating.TemplateBase.RazorEngine.Templating.ITemplate.Run(ExecuteContext context, TextWriter reader)
   at RazorEngine.Templating.RazorEngineService.RunCompile(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.<>c__DisplayClass16_0.<RunCompile>b__0(TextWriter writer)
   at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)
   at Dynamicweb.Rendering.RazorTemplateRenderingProvider.Render(Template template)
   at Dynamicweb.Rendering.TemplateRenderingService.Render(Template template)
   at Dynamicweb.Rendering.Template.RenderRazorTemplate()


  1     @inherits Dynamicweb.Rendering.ViewModelTemplate<Dynamicweb.Frontend.ParagraphViewModel>
  2     @using Dynamicweb.Ecommerce.ProductCatalog
  3     @using Dynamicweb.Environment.Helpers
  4     @using System
  5     
  6     @inherits Dynamicweb.Rendering.ViewModelTemplate<Dynamicweb.Frontend.ParagraphViewModel>
  7     
  8     @helper RenderArticleHeadline()
  9     {
 10         string layout = Model.Item.GetItem("Headline").GetRawValueString("Layout", "text-left");
 11         string contentPadding = Model.Item.GetItem("Headline").GetRawValueString("ContentPadding", "");
 12         contentPadding = contentPadding == "none" ? "p-0" : contentPadding;
 13         contentPadding = contentPadding == "small" ? "p-2 p-md-3" : contentPadding;
 14         contentPadding = contentPadding == "large" ? "p-4 p-md-5" : contentPadding;
 15         string maxWidth = Model.Item.GetItem("Headline").GetRawValueString("TextReadability", "");
 16         string theme = !string.IsNullOrWhiteSpace(Model.Item.GetItem("Headline").GetRawValueString("Theme")) ? " theme " + Model.Item.GetItem("Headline").GetRawValueString("Theme").Replace(" ", "").Trim().ToLower() : "";
 17     
 18     
 19         <div class="@(contentPadding)@(theme) item_@Model.Item.SystemName.ToLower()">
 20             @switch (layout)
 21             {
 22                 case "text-start":
 23                     @RenderLead(maxWidth)
 24                     @RenderTitle(maxWidth)
 25                     break;
 26                 case "text-center":
 27                     <div class="d-flex flex-column align-items-center h-100 text-center">
 28                         @RenderLead(maxWidth)
 29                         @RenderTitle(maxWidth)
 30                     </div>
 31                     break;
 32                 case "text-end":
 33                     <div class="d-flex flex-column align-items-end h-100 text-end">
 34                         @RenderLead(maxWidth)
 35                         @RenderTitle(maxWidth)
 36                     </div>
 37                     break;
 38                 case "alignLeftMiddle":
 39                     <div class="d-flex flex-column justify-content-center h-100">
 40                         @RenderLead(maxWidth)
 41                         @RenderTitle(maxWidth)
 42                     </div>
 43                     break;
 44                 case "alignCenterMiddle":
 45                     <div class="d-flex flex-column align-items-center justify-content-center h-100 text-center">
 46                         @RenderLead(maxWidth)
 47                         @RenderTitle(maxWidth)
 48                     </div>
 49                     break;
 50             }
 51         </div>
 52     
 53     }
 54     
 55     @helper RenderLead(string maxWidth)
 56     {
 57     
 58         if (!string.IsNullOrEmpty(Model.Item.GetItem("Headline").GetString("Text")))
 59         {
 60             string subtitleFontSize = Model.Item.GetItem("Headline").GetRawValueString("SubtitleFontSize", "fs-5");
 61     
 62             <p class="@subtitleFontSize lead d-block mb-2">
 63                 @if (maxWidth == "max-width-on")
 64                 {
 65                     <span class="mw-75ch d-inline-block">@Model.Item.GetItem("Headline").GetString("Text")</span>
 66                 }
 67                 else
 68                 {
 69                     <span>@Model.Item.GetItem("Headline").GetString("Text")</span>
 70                 }
 71             </p>
 72         }
 73     }
 74     
 75     @helper RenderTitle(string maxWidth)
 76     {
 77     
 78         if (!string.IsNullOrEmpty(Model.Item.GetString("Title")))
 79         {
 80             string maxWidth = Model.Item.GetItem("Headline").GetRawValueString("TextReadability", "max-width-on");
 81             maxWidth = maxWidth == "max-width-on" ? "mw-75ch d-inline-block" : maxWidth;
 82             maxWidth = maxWidth == "max-width-off" ? "" : maxWidth;
 83     
 84             string titleFontSize = Model.Item.GetItem("Headline").GetRawValueString("TitleFontSize", "display-4");
 85             string headingLevel = Model.Item.GetItem("Headline").GetString("HeadingLevel", "h2");
 86             string headingLevelStart = $"<{headingLevel} class=\"{titleFontSize} {maxWidth} mb-3\">";
 87             string headingLevelStop = $"</{headingLevel}>";
 88     
 89             @headingLevelStart
 90             @Model.Item.GetString("Title")
 91             @headingLevelStop
 92         }
 93     }
 94     
 95     
 96     @{
 97     
 98         string listSource = !string.IsNullOrEmpty(Model.Item.GetString("ListSource")) ? Model.Item.GetString("ListSource") : Model.PageID.ToString();
 99         string articleListSortOrder = !string.IsNullOrEmpty(Model.Item.GetString("ArticleListSortOrder")) ? Model.Item.GetString("ArticleListSortOrder") : "Descending";
100         int maxItemsInList = !string.IsNullOrEmpty(Model.Item.GetInt32("MaxItemsInList").ToString()) ? Model.Item.GetInt32("MaxItemsInList") : 10;
101         string articleListLayout = !string.IsNullOrEmpty(Model.Item.GetString("ArticleListLayout")) ? Model.Item.GetString("ArticleListLayout") : "grid";
102         string columnTheme = !string.IsNullOrEmpty(Model.Item.GetString("ColumnTheme")) ? Model.Item.GetString("ColumnTheme") : string.Empty;
103         string columnThemeClass = columnTheme != string.Empty ? " theme " + columnTheme + " p-3" + (articleListLayout == "carousel" ? " px-lg-4" : string.Empty) : string.Empty;
104         int gridSettings = !string.IsNullOrEmpty(Model.Item.GetInt32("GridSettings").ToString()) ? Model.Item.GetInt32("GridSettings") : 4;
105         int carouselSettings = !string.IsNullOrEmpty(Model.Item.GetInt32("CarouselSettings").ToString()) ? Model.Item.GetInt32("CarouselSettings") : 4;
106         bool hideScrollbar = Model.Item.GetBoolean("HideScrollbar");
107         string scrollbarClass = hideScrollbar == false ? " slider-nav-scrollbar" : string.Empty;
108         string settingsClassGrid = string.Empty;
109         string settingsClassCarousel = string.Empty;
110         string pageSize = Dynamicweb.Context.Current.Request.QueryString.Get("pageSize");
111         maxItemsInList = string.IsNullOrEmpty(pageSize) ? maxItemsInList : Convert.ToInt32(pageSize);
112         bool productPageLayout = Model.Item.GetBoolean("ActivateProductPageLayout");
113     
114     
115         switch (gridSettings)
116         {
117             case 2:
118                 settingsClassGrid = " grid-md-2";
119                 break;
120             case 3:
121                 settingsClassGrid = " grid-md-3";
122                 break;
123             case 4:
124                 settingsClassGrid = " grid-md-2 grid-lg-3 grid-xl-4";
125                 break;
126             case 5:
127                 settingsClassGrid = " grid-md-2 grid-lg-3 grid-xl-5";
128                 break;
129         }
130         switch (carouselSettings)
131         {
132             case 2:
133                 settingsClassCarousel = " slider-item-show2";
134                 break;
135             case 3:
136                 settingsClassCarousel = " slider-item-show3";
137                 break;
138             case 4:
139                 settingsClassCarousel = " slider-item-show4";
140                 break;
141             case 5:
142                 settingsClassCarousel = " slider-item-show5";
143                 break;
144         }
145     
146     
147         string joinedItemEntries = GetItemEntriesCustom(Model.Item);
148         System.Collections.Generic.IEnumerable<Dynamicweb.Content.Page> pages = Dynamicweb.Services.Pages.GetPagesByParentID(Convert.ToInt32(listSource));
149     
150         if (Model.Item.GetBoolean("IncludeArticlesFromAllSubpages"))
151         {
152             List<string> pageIds = GetPages(pages);
153             pageIds.Add(listSource);
154             joinedItemEntries = string.Join(",", pageIds);
155             pages = Dynamicweb.Services.Pages.GetPagesByAreaID(Pageview.AreaID).Where(i => joinedItemEntries.Contains(Convert.ToString(i.ParentPageId)));
156         }
157     
158         if (Model.Item.GetBoolean("GetArticlesFromTag"))
159         {
160             pages = Dynamicweb.Services.Pages.GetPagesByAreaID(Pageview.AreaID).Where(page => page.ItemType == "Swift_Article_Custom" && Convert.ToString(page.Item["Tags"]).Contains(Model.Item.GetString("Tag")));
161             List<string> pageIds = new List<string>();
162             foreach (var page in pages)
163             {
164                 pageIds.Add(Convert.ToString(page.ItemId));
165             }
166             joinedItemEntries = string.Join(",", pageIds);
167         }
168     
169         var subPagesCount = pages != null ? pages.Where(page => page.Published).Count() : 0;
170     
171     
172         if (!productPageLayout || (productPageLayout && !string.IsNullOrWhiteSpace(joinedItemEntries)))
173         {
174             <div class="@(productPageLayout ? "grid gap-1" : "") ">
175                 <div class="@(productPageLayout ? "g-col-12 g-col-lg-4 aos-init aos-animate" : "")">
176                     @if ((Model.Item.GetBoolean("ShowTitleAsHeadline") && !string.IsNullOrEmpty(joinedItemEntries)) || (Model.Item.GetBoolean("ShowTitleAsHeadline") && !Model.Item.GetBoolean("ChooseSpecificArticles") && !Model.Item.GetBoolean("ProductPageArticles")))
177                     {
178                         @RenderArticleHeadline()
179                     }
180                 </div>
181                 <div class="@(productPageLayout ? "g-col-12 g-col-lg-8 aos-init aos-animate" : "custom-list-articles") js-list-wrap_@(Model.ItemId)" data-gridsettings="@gridSettings" data-startPageCount="@maxItemsInList" data-totalPageCount="@subPagesCount">
182     
183                     @RenderFilterBarCustom(pages, Model.Item.GetBoolean("ShowFilterBar"))
184     
185     
186                     @switch (articleListLayout)
187                     {
188                         case "grid":
189                             <div class="grid gap-1 grid-1@(settingsClassGrid)@(columnThemeClass) item_@Model.Item.SystemName.ToLower()_@Model.ItemId">
190     
191                                 @RenderArticleList("Swift_Article_Custom", listSource, maxItemsInList, articleListSortOrder, joinedItemEntries)
192                                 @*@RenderArticleList("Swift_ArticleListPage", listSource, maxItemsInList, articleListSortOrder, joinedItemEntries)*@
193                             </div>
194                             if (Model.Item.GetBoolean("ShowLoadMoreButton"))
195                             {
196                                 <div class="text-center custom-load-more-btn-articles">
197                                     @if (maxItemsInList < subPagesCount)
198                                     {
199                                         <a class="d-none" href="Default.aspx?ID=@Pageview.Page.ID&pagesize=@subPagesCount"></a>
200                                         <button class="btn btn-secondary js-loadmore" data-itemid="@Model.ItemId" onclick="updateList(this, @Model.ItemId)">@Translate("Vis flere artikler")</button>
201                                     }
202                                 </div>
203                             }
204                             break;
205     
206                         case "carousel":
207                             <div class="swiffy-slider slider-item-reveal slider-nav-round slider-item-nosnap swiffy-gap-lg-4@(settingsClassCarousel)@(columnThemeClass) item_@Model.Item.SystemName.ToLower()">
208                                 <div class="slider-container pb-3 py-lg-3 mt-lg-n3@(scrollbarClass)">
209                                     @RenderArticleList("Swift_Article_Custom", listSource, maxItemsInList, articleListSortOrder, joinedItemEntries)
210                                 </div>
211     
212                                 <button type="button" title="@Translate("Slider navigation button - Previous slider")" class="slider-nav"></button>
213                                 <button type="button" title="@Translate("Slider navigation button - Next slider")" class="slider-nav slider-nav-next"></button>
214     
215                                 <script type="module" src="~/Files/Templates/Designs/Swift/Assets/js/swiffy-slider.js"></script>
216                                 <script type="module">
217                                     swift.AssetLoader.Load('Files/Templates/Designs/Swift/Assets/css/swiffy-slider.min.css', 'css');
218                                     document.addEventListener('load.swift.assetloader', function () {
219                                         swiffyslider.init()
220                                     });
221                                 </script>
222                             </div>
223                             break;
224                     }
225                 </div>
226             </div>
227         }
228     }
229     
230     
231     @helper RenderArticleList(string itemType, string listSource, int maxItemsInList, string articleListSortOrder, string joinedItemEntries)
232     {
233     
234         if (Model.Item.GetBoolean("ChooseSpecificArticles"))
235         {
236             @RenderItemList(new
237             {
238                 ItemType = itemType,
239                 ListTemplate = "ItemPublisher/List/List_Custom.cshtml",
240                 ItemFieldsList = "*",
241                 ListSourceType = "ItemEntries",
242                 SourceItemEntries = joinedItemEntries,
243                 ListPageSize = maxItemsInList,
244                 ListOrderBy = "Id",
245             })
246         }
247         else if (Model.Item.GetBoolean("ProductPageArticles"))
248         {
249             @RenderItemList(new
250             {
251                 ItemType = itemType,
252                 ListTemplate = "ItemPublisher/List/List_Custom.cshtml",
253                 ItemFieldsList = "*",
254                 ListSourceType = "ItemEntries",
255                 SourceItemEntries = joinedItemEntries,
256                 ListPageSize = maxItemsInList,
257                 IncludeParagraphItems = true,
258                 ListOrderBy = "PublishedDate",
259                 ListSecondOrderBy = "Updated",
260                 ListOrderByDirection = articleListSortOrder
261             })
262         }
263         else if (Model.Item.GetBoolean("GetArticlesFromTag"))
264         {
265             @RenderItemList(new
266             {
267                 ItemType = itemType,
268                 ListTemplate = "ItemPublisher/List/List_Custom.cshtml",
269                 ItemFieldsList = "*",
270                 ListSourceType = "ItemEntries",
271                 SourceItemEntries = joinedItemEntries,
272                 ListPageSize = maxItemsInList,
273                 IncludeParagraphItems = true,
274                 ListOrderBy = "PublishedDate",
275                 ListSecondOrderBy = "Updated",
276                 ListOrderByDirection = articleListSortOrder
277             })
278         }
279         else
280         {
281             if (Model.Item.GetBoolean("IncludeArticlesFromAllSubpages"))
282             {
283                 listSource = joinedItemEntries;
284             }
285             @RenderItemList(new
286        {
287            ItemType = itemType,
288            ListTemplate = "ItemPublisher/List/List_Custom.cshtml",
289            ItemFieldsList = "*",
290            ListSourceType = "Page",
291            ListSourcePage = listSource,
292            ListPageSize = maxItemsInList,
293            IncludeParagraphItems = true,
294            ListOrderBy = "PublishedDate",
295            ListSecondOrderBy = "Updated",
296            ListOrderByDirection = articleListSortOrder,
297        })
298         }
299     }
300     
301     
302     @helper RenderFilterBarCustom(IEnumerable<Dynamicweb.Content.Page> pages, bool showFilterBar)
303     {
304     
305         if (showFilterBar)
306         {
307             string selectedTags = !string.IsNullOrEmpty(Dynamicweb.Context.Current.Request.QueryString.Get("Tags")) ? Dynamicweb.Context.Current.Request.QueryString.Get("Tags") : "";
308             string selectedPublishedDate = !string.IsNullOrEmpty(Dynamicweb.Context.Current.Request.QueryString.Get("PublishedDate")) ? Dynamicweb.Context.Current.Request.QueryString.Get("PublishedDate") : "01-01-0001";
309     
310             Dictionary<string, List<string>> categories = new Dictionary<string, List<string>>();
311     
312             foreach (var page in pages)
313             {
314                 if (string.IsNullOrEmpty(selectedPublishedDate) || Convert.ToDateTime(page?.Item?.GetItem("PublishedDate")) > Convert.ToDateTime(selectedPublishedDate))
315                 {
316                     var itemTagPageIds = Convert.ToString(page.Item.GetItem("Tags")).Split(',');
317     
318                     foreach (var itemTagPageId in itemTagPageIds)
319                     {
320                         if (Dynamicweb.Core.Converter.ToInt32(itemTagPageId) > 0)
321                         {
322                             var itemPage = Dynamicweb.Services.Pages.GetPage(Dynamicweb.Core.Converter.ToInt32(itemTagPageId));
323     
324                             if (itemPage != null && itemPage.Parent.Published && itemPage.Published && itemPage.AreaId == Pageview.AreaID)
325                             {
326     
327                                 if (!categories.ContainsKey(itemPage.Parent.MenuText))
328                                 {
329                                     categories.Add(itemPage.Parent.MenuText, new List<string>());
330                                 }
331     
332                                 categories[itemPage.Parent.MenuText].Add(Convert.ToString(itemPage.ID));
333     
334                             }
335                         }
336                     }
337                 }
338             }
339     
340             <div class="filters pt-3 d-md-flex">
341     
342                 @foreach (var item in categories)
343                 {
344                     string queryString = Dynamicweb.Context.Current.Request.QueryString.Get("Tags") != null ? Convert.ToString(Dynamicweb.Context.Current.Request.QueryString.Get("Tags")) : string.Empty;
345                     var tags = queryString?.Split(',');
346                     bool defaultValueSelected = string.IsNullOrWhiteSpace(queryString) || (!string.IsNullOrWhiteSpace(queryString) && item.Value.Find(x => queryString.Contains(x)) == null);
347                     string selectedTag = string.Empty;
348     
349     
350                     <div class="dropdown me-4">
351                         <select class="form-select btn btn-outline-secondary dropdown-toggle w-100 text-start" onchange="updateList(this, @(Model.ItemId), this.value)">
352                             <option disabled selected="@(defaultValueSelected)">@item.Key</option>
353                             @foreach (string topicPageId in item.Value.Distinct())
354                             {
355                                 var path = LinkHelper.ReplaceQueryString("Tags", topicPageId);
356                                 bool selected = queryString != null && queryString.Contains(topicPageId) ? true : false;
357                                 selectedTag = selected ? topicPageId : selectedTag;
358     
359                                 var topicName = Dynamicweb.Services.Pages.GetPage(Convert.ToInt32(topicPageId))?.MenuText;
360     
361     
362                                 <option value="@topicPageId" selected="@(selected)">@topicName</option>
363                             }
364                             @if (!string.IsNullOrEmpty(selectedTag))
365                             {
366                                 <option value="reset_@(selectedTag)" class="fw-bold">@Translate("Reset")</option>
367                             }
368                         </select>
369                     </div>
370                 }
371     
372                 @{
373                     DateTime startingDate = DateTime.Today;
374     
375                     string lastWeekDate = startingDate.AddDays(-7).ToString("yyyy-MM-dd");
376                     var lastWeek = "PublishedDate=" + lastWeekDate;
377     
378                     string lastMonthDate = startingDate.AddMonths(-1).ToString("yyyy-MM-dd");
379                     var lastMonth = "PublishedDate=" + lastMonthDate;
380     
381                     string lastSixMonthDate = startingDate.AddMonths(-6).ToString("yyyy-MM-dd");
382                     var lastSixMonth = "PublishedDate=" + lastSixMonthDate;
383     
384                     string resetPath = LinkHelper.StripQueryString("PublishedDate");
385                     resetPath = resetPath.Replace("&PublishedDate.op=gt", "");
386                 }
387     
388                 <div class="dropdown me-4">
389                     <select class="form-select btn btn-outline-secondary dropdown-toggle w-100 text-start" onchange="updateList(this, @(Model.ItemId), this.value)">
390                         <option disabled selected="@(selectedPublishedDate == "01-01-0001")">@Translate("Date range")</option>
391                         <option value="@lastWeek" selected="@(selectedPublishedDate == lastWeekDate)">@Translate("Last week")</option>
392                         <option value="@lastMonth" selected="@(selectedPublishedDate == lastMonthDate)">@Translate("Last month")</option>
393                         <option value="@lastSixMonth" selected="@(selectedPublishedDate == lastSixMonthDate)">@Translate("Last 6 months")</option>
394                         <option value="reset_PublishedDate" class="fw-bold">@Translate("Reset")</option>
395                     </select>
396                 </div>
397                 <div class="dropdown me-4 d-flex align-items-center">
398                     @if (!string.IsNullOrEmpty(selectedTags) || selectedPublishedDate != "01-01-0001")
399                     {
400                         <button type="button" onclick="updateList(this, @(Model.ItemId), 'reset')" class="btn btn-link">@Translate("Reset filters")</button>
401                     }
402                 </div>
403             </div>
404         }
405     }
406     
407     
408     @functions{
409         string GetItemEntriesCustom(Dynamicweb.Frontend.ItemViewModel articleList)
410         {
411             var pageService = new Dynamicweb.Content.PageService();
412             List<string> itemEntries = new List<string> { };
413             if (articleList.GetBoolean("ChooseSpecificArticles") || articleList.GetBoolean("ProductPageArticles"))
414             {
415                 if (articleList.GetBoolean("ChooseSpecificArticles"))
416                 {
417                     foreach (var item in articleList.GetItems("SpecificArticlesToShow"))
418                     {
419                         Dynamicweb.Frontend.ItemViewModel article = (Dynamicweb.Frontend.ItemViewModel)item?.Fields[0]?.Value;
420                         if (article != null && article.SystemName == "Swift_Article_Custom")
421                         {
422                             itemEntries.Add(article.Id);
423                         }
424                     }
425                 }
426     
427                 if (articleList.GetBoolean("ChooseSpecificArticles"))
428                 {
429                     foreach (var item in articleList.GetItems("SpecificArticlesToShow"))
430                     {
431                         Dynamicweb.Frontend.ItemViewModel article = (Dynamicweb.Frontend.ItemViewModel)item?.Fields[0]?.Value;
432                         if (article != null && article.SystemName == "Swift_Article_Custom")
433                         {
434                             itemEntries.Add(article.Id);
435                         }
436                     }
437                 }
438     
439                 if (articleList.GetBoolean("ProductPageArticles"))
440                 {
441                     ProductViewModel product = null;
442                     if (Dynamicweb.Context.Current.Items.Contains("ProductDetails"))
443                     {
444                         product = (ProductViewModel)Dynamicweb.Context.Current.Items["ProductDetails"];
445                     }
446                     else if (Pageview.Page.Item["DummyProduct"] != null && Pageview.IsVisualEditorMode)
447                     {
448                         var pageViewModel = Dynamicweb.Frontend.ContentViewModelFactory.CreatePageInfoViewModel(Pageview.Page);
449                         ProductListViewModel productList = pageViewModel.Item.GetValue("DummyProduct") != null ? pageViewModel.Item.GetValue("DummyProduct") as ProductListViewModel : new ProductListViewModel();
450     
451                         if (productList?.Products is object)
452                         {
453                             product = productList.Products[0];
454                         }
455                     }
456                     if (product is object)
457                     {
458                         var relatedArticles = product.AssetCategories?.FirstOrDefault(asset => asset.SystemName == "Related_articles");
459     
460                         if (relatedArticles != null)
461                         {
462                             foreach (var asset in relatedArticles.Assets)
463                             {
464                                 string pageLink = Convert.ToString(asset.Value).ToLower();
465                                 int pageId = Dynamicweb.Environment.Helpers.LinkHelper.GetInternalPageId(pageLink);
466                                 var page = pageService.GetPage(pageId);
467     
468                                 if (page != null && page.ItemType == "Swift_Article_Custom")
469                                 {
470                                     string itemId = page.ItemId;
471                                     itemEntries.Add(itemId);
472                                 }
473                             }
474                         }
475                     }
476                 }
477             }
478     
479             return string.Join(",", itemEntries);
480         }
481     }
482     @functions{
483     
484         private static List<string> GetPages(System.Collections.Generic.IEnumerable<Dynamicweb.Content.Page> pages)
485         {
486             List<string> pageIds = new List<string> { };
487             string pageIdsString = string.Empty;
488             if (pages != null)
489             {
490                 foreach (Dynamicweb.Content.Page page in pages)
491                 {
492                     if (page.ItemType == "Swift_ArticleListPage")
493                     {
494                         pageIds.Add(Convert.ToString(page.ID));
495                         List<string> list = GetPages(Dynamicweb.Services.Pages.GetPagesByParentID(page.ID));
496     
497                         foreach (var listPage in list)
498                         {
499                             pageIds.Add(listPage);
500                         }
501                     }
502                 }
503             }
504     
505     
506             return pageIds;
507         }
508     }