Summer moments

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_c0607b58bde547a49bbe813c31f1a74f.<>c__DisplayClass0_0.<RenderArticleList>b__0(TextWriter __razor_helper_writer) in D:\dynamicweb.net\Solutions\twodayco3\evasolo.cloud.dynamicweb-cms.com\Files\Templates\Designs\Swift\Paragraph\Swift_ArticleList_Custom.cshtml:line 128
   at CompiledRazorTemplates.Dynamic.RazorEngine_c0607b58bde547a49bbe813c31f1a74f.Execute() in D:\dynamicweb.net\Solutions\twodayco3\evasolo.cloud.dynamicweb-cms.com\Files\Templates\Designs\Swift\Paragraph\Swift_ArticleList_Custom.cshtml:line 27
   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 System.Web
  3     @using Dynamicweb
  4     @using Dynamicweb.Core
  5     @using Dynamicweb.Frontend
  6     @using Dynamicweb.Environment
  7     
  8     @* TODO: REFACTURE/UPGRADE TO SWIFT (v1.25.0) *@
  9     
 10     @{
 11     	var relationType = Model.Item.GetRawValueString("RelationType", "article");
 12     	string listSource = !string.IsNullOrEmpty(Model.Item.GetString("ListSource")) ? Model.Item.GetString("ListSource") : Model.PageID.ToString(); // STANDARD ARTICLES
 13     	var listBehaviour = Model.Item.GetRawValueString("ListBehaviour", "articles"); // STANDARD ARTICLES
 14     	string articleListSortOrder = !string.IsNullOrEmpty(Model.Item.GetString("ArticleListSortOrder")) ? Model.Item.GetString("ArticleListSortOrder") : "Descending";
 15     	int maxItemsInList = !string.IsNullOrEmpty(Model.Item.GetInt32("MaxItemsInList").ToString()) ? Model.Item.GetInt32("MaxItemsInList") : 10;
 16     	string articleListLayout = !string.IsNullOrEmpty(Model.Item.GetString("ArticleListLayout")) ? Model.Item.GetString("ArticleListLayout") : "grid";
 17     	string columnTheme = !string.IsNullOrEmpty(Model.Item.GetString("ColumnTheme")) ? Model.Item.GetString("ColumnTheme") : string.Empty;
 18     	string columnThemeClass = columnTheme != string.Empty ? " theme " + columnTheme + " p-3" + (articleListLayout == "carousel" ? " px-lg-4" : string.Empty) : string.Empty;
 19     
 20     	<div class="h-100@(columnThemeClass) item_@Model.Item.SystemName.ToLower()">
 21     		@switch (articleListLayout)
 22     		{
 23     			case "grid":
 24     				if (relationType == "article")
 25     				{
 26     					if (listBehaviour == "articles")
 27     					{@RenderArticleList("Swift_Article", listSource, maxItemsInList, articleListSortOrder) }
 28     				if (listBehaviour == "lists")
 29     				{ @RenderArticleList("Swift_ArticleListPage", listSource, maxItemsInList, articleListSortOrder) }
 30     		}
 31     		else if (relationType == "clerk")
 32     		{
 33     			@RenderArticleListClerk("Swift_Article", maxItemsInList, articleListSortOrder)
 34     		}
 35     		break;
 36     
 37     	case "carousel":
 38     		var carouselSettings = Model.Item.GetRawValueString("CarouselSettings", "4");
 39     		string slidesPerPage = $"slider-item-show{carouselSettings}";
 40     		string navigationStyle = $"{Model.Item.GetRawValueString("NavigationStyle", "slider-nav-round")}";
 41     		string navigationPlacement = $"{Model.Item.GetRawValueString("NavigationPlacement", "slider-nav-on-slides")}";
 42     		string indicatorStyle = $"{Model.Item.GetRawValueString("IndicatorStyle", string.Empty)}";
 43     		string revealSlides = Model.Item.GetRawValueString("RevealSlides", "reveal") == "reveal" ? "slider-item-reveal" : string.Empty;
 44     		string sliderItemsGap = Model.Item.GetRawValueString("SliderItemsGap", "slider-item-gap") == "slider-item-nogap" ? "slider-item-nogap" : string.Empty;
 45     		string navigationAlwaysVisible = (Model.Item.GetBoolean("NavigationAlwaysVisible")) ? "slider-nav-visible" : string.Empty;
 46     		string navigationVisibleOnTouch = (Model.Item.GetBoolean("NavigationVisibleOnTouch")) ? "slider-nav-touch" : string.Empty;
 47     		string navigationShowScrollbar = (Model.Item.GetBoolean("NavigationShowScrollbar")) ? "slider-nav-scrollbar" : string.Empty;
 48     		string scrollBarForceMobile = (Model.Item.GetBoolean("NavigationShowScrollbar")) ? "--swiffy-slider-track-height:0.5rem !important;" : string.Empty;
 49     		string navigationSmall = (Model.Item.GetBoolean("NavigationSmall")) ? "slider-nav-sm" : string.Empty;
 50     		string navigationInvertColors = (Model.Item.GetBoolean("NavigationInvertColors")) ? "slider-nav-dark" : string.Empty;
 51     		string navigationSlideEntirePage = (Model.Item.GetBoolean("NavigationSlideEntirePage")) ? "slider-nav-page" : string.Empty;
 52     		string navigationNoLoop = (Model.Item.GetBoolean("NavigationNoLoop")) ? "slider-nav-noloop" : string.Empty;
 53     		string indicatorsOutsideSlider = (Model.Item.GetBoolean("IndicatorsOutsideSlider") && indicatorStyle != string.Empty) ? "slider-indicators-outside" : string.Empty;
 54     		string indicatorsHighlightActive = (Model.Item.GetBoolean("IndicatorsHighlightActive")) ? "slider-indicators-highlight" : string.Empty;
 55     		string indicatorsInvertColors = (Model.Item.GetBoolean("IndicatorsInvertedColors")) ? "slider-indicators-dark" : string.Empty;
 56     		string indicatorsVisibleOnSmallDevices = (Model.Item.GetBoolean("IndicatorsVisibleOnSmallDevices")) ? "slider-indicators-sm" : string.Empty;
 57     		string animation = Model.Item.GetRawValueString("Animation", string.Empty) != string.Empty ? $"slider-nav-animation {Model.Item.GetRawValueString("Animation")}" : string.Empty;
 58     		string autoplay = (Model.Item.GetBoolean("Autoplay")) ? "slider-nav-autoplay" : string.Empty;
 59     		string autoplayInterval = Model.Item.GetRawValueString("AutoplayInterval", string.Empty);
 60     		bool hideSliderNavigation = (navigationStyle == "slider-nav-none");
 61     
 62     		<div id="Slider_@Model.ID" class="swiffy-slider @(slidesPerPage) @(navigationStyle) @(revealSlides) @(navigationPlacement) @(navigationAlwaysVisible) @(navigationVisibleOnTouch) @(sliderItemsGap) @(indicatorStyle) @(navigationShowScrollbar) @(navigationSmall) @(navigationInvertColors) @(indicatorsOutsideSlider) @(navigationNoLoop) @(indicatorsHighlightActive) @(indicatorsInvertColors) @(indicatorsVisibleOnSmallDevices) @(navigationSlideEntirePage) @(animation) @(autoplay) item_@Model.Item.SystemName.ToLower()" style="--swiffy-slider-nav-light:var(--swift-foreground-color);--swiffy-slider-nav-dark:var(--swift-background-color);visibility:hidden;opacity:0;@(scrollBarForceMobile)" data-slider-nav-autoplay-interval="@(autoplayInterval)">
 63     			<div class="slider-container pb-3 py-lg-3 mt-lg-n3">
 64     				@if (relationType == "article")
 65     				{
 66     					if (listBehaviour == "articles")
 67     					{@RenderArticleList("Swift_Article", listSource, maxItemsInList, articleListSortOrder) }
 68     				if (listBehaviour == "lists")
 69     				{ @RenderArticleList("Swift_ArticleListPage", listSource, maxItemsInList, articleListSortOrder) }
 70     		}
 71     		else if (relationType == "clerk")
 72     		{
 73     			@RenderArticleListClerk("Swift_Article", maxItemsInList, articleListSortOrder)
 74     		}
 75     			</div>
 76     
 77     			@if (!hideSliderNavigation)
 78     			{
 79     				<button type="button" title="@Dynamicweb.Core.Encoders.HtmlEncoder.HtmlAttributeEncode(Translate("Previous slide"))" class="slider-nav" style="z-index:1;">
 80     					<span class="visually-hidden">@Translate("Previous slide")</span>
 81     				</button>
 82     				<button type="button" title="@Dynamicweb.Core.Encoders.HtmlEncoder.HtmlAttributeEncode(Translate("Next slide"))" class="slider-nav slider-nav-next" style="z-index:1;">
 83     					<span class="visually-hidden">@Translate("Next slide")</span>
 84     				</button>
 85     			}
 86     			@if (indicatorStyle != "slider-indicators-hidden")
 87     			{
 88     				string isActive = "active";
 89     				int slideCount = 1;
 90     
 91     				<div class="slider-indicators" style="z-index:1;">
 92     					@for (int i = 0; i < maxItemsInList; i++)
 93     					{
 94     						<button class="@isActive" type="button" title='@Dynamicweb.Core.Encoders.HtmlEncoder.HtmlAttributeEncode(Translate("Go to slide")) @slideCount'>
 95     							<span class="visually-hidden">@Translate("Go to slide") @slideCount</span>
 96     						</button>
 97     
 98     						slideCount++;
 99     						isActive = null;
100     					}
101     				</div>
102     			}
103     
104     			<script type="module" src="/Files/Templates/Designs/Swift/Assets/js/swiffy-slider.js"></script>
105     			<script type="module">
106     								swift.AssetLoader.Load('/Files/Templates/Designs/Swift/Assets/css/swiffy-slider.min.css', 'css');
107     								document.addEventListener('load.swift.assetloader', () => {
108     									swiffyslider.initSlider(document.querySelector('#Slider_@Model.ID'));
109     									document.querySelector('#Slider_@Model.ID').style.opacity = 1;
110     									document.querySelector('#Slider_@Model.ID').style.visibility = "visible";
111     								});
112     			</script>
113     		</div>
114     
115     		break;
116     }
117     	</div>
118     }
119     
120     @helper RenderArticleList(string itemType, string listSource, int maxItemsInList, string articleListSortOrder)
121     {
122     	var parent = Dynamicweb.Context.Current.Request.QueryString.Get("list");
123     	var query = string.IsNullOrEmpty(parent) ? listSource : parent;
124     	var includeAllChildren = Model.Item.GetRawValueString("ListDepth", "all") == "all" ? true : false; // STANDARD ARTICLES
125     	var listContext = Model.Item?.GetRawValueString("ListContext", string.Empty).Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries); // STANDARD ARTICLES
126     	var filterString = string.Join(" or ", listContext.Select(item => $"Tags == \"{item}\" or Tags ends with \",{item}\" or Tags starts with \"{item},\" or Tags contains \",{item},\""));
127     
128     	@RenderItemList(new
129     	{
130     		ItemType = itemType,
131     		ListTemplate = "ItemPublisher/List/List_Custom.cshtml",
132     		ItemFieldsList = "*",
133     		ListSourceType = "Page",
134     		ListSourcePage = query,
135     		ListPageSize = maxItemsInList,
136     		IncludeParagraphItems = true,
137     		ListOrderBy = "PublishedDate",
138     		ListSecondOrderBy = "Updated",
139     		ListOrderByDirection = articleListSortOrder,
140     		IncludeAllChildItems = includeAllChildren,
141     		Filter = itemType == "Swift_Article" ? filterString : null // Filter only if "articles only"
142     	})
143     }
144     
145     @helper RenderArticleListClerk(string itemType, int maxItemsInList, string articleListSortOrder)
146     {
147     	// Doc.: https://docs.clerk.io/reference/recommendationspagesubstituting
148     	// - recommendations/page/substituting - Pages that are similar to any given page
149     	// - recommendations/page/product - Pages that are related to any given product - NOTE: ProductID param is required
150     	// - recommendations/page/category - Pages that are related to any given category - NOTE: GroupID param is required
151     
152     	var isProductDetail = (Pageview.Page.NavigationTag.ToLower() == "shop" && Dynamicweb.Context.Current.Request.HasRequest("ProductID"));
153     	var renderClerk = (!isProductDetail || GetPageIdByNavigationTag("ProductDetailPage") == PageView.Current().CurrentParagraph.Page.ID);
154     
155     	var clerkEndPoint = Model.Item.GetString("ClerkEndpoint");
156     	var clerkQuery = new List<string>();
157     
158     	switch (clerkEndPoint)
159     	{
160     		case "recommendations/page/substituting":
161     			clerkQuery.Add("page=" + Model.PageID);
162     			break;
163     
164     		case "recommendations/page/product":
165     			if (Context.Current.Request.HasRequest("ProductID"))
166     			{
167     				clerkQuery.Add("product=" + Context.Current.Request.GetString("ProductID"));
168     			}
169     			else
170     			{
171     				renderClerk = false;
172     			}
173     			break;
174     
175     		case "recommendations/page/category":
176     			if (Context.Current.Request.HasRequest("GroupID"))
177     			{
178     				clerkQuery.Add("category=" + Context.Current.Request.GetString("GroupID"));
179     			}
180     			else
181     			{
182     				renderClerk = false;
183     			}
184     			break;
185     	}
186     
187     	if (renderClerk)
188     	{
189     		var response = Smartpage.EvaSolo.Clerk.Services.ClerkApi.Request(clerkEndPoint, string.Join("&", clerkQuery), null, Model.Item.GetString("ClerkLabels"), maxItemsInList);
190     		if (response != null && response.Any())
191     		{
192     			var itemEntries = Dynamicweb.Content.Services.Pages.GetPages(response.Select(i => Convert.ToInt32(i)).ToArray()).Where(i => i != null).Select(i => i.ItemId).ToArray();
193     			if (itemEntries.Any())
194     			{
195     				Dynamicweb.Context.Current.Items["Custom_ClerkSortOrder"] = itemEntries; // NOTE: Ordered by ItemId. Used to sort in List_Custom.cshtml
196     
197     				@RenderItemList(new
198     				{
199     					ItemType = itemType,
200     					ListTemplate = "ItemPublisher/List/List_Custom.cshtml",
201     					ItemFieldsList = "*",
202     					ListSourceType = "ItemEntries",
203     					ListPageSize = itemEntries.Count(),
204     					SourceItemEntries = string.Join(",", itemEntries),
205     					IncludeParagraphItems = true,
206     					ListOrderByDirection = articleListSortOrder
207     				})
208     			}
209     		}
210     	}
211     	else if (Pageview.IsVisualEditorMode)
212     	{
213     		switch (clerkEndPoint)
214     		{
215     			case "recommendations/page/product":
216     				<div class="alert alert-dark m-0" role="alert">
217     					<span>@Translate("Articlelist: The articlelist will be shown here, if a product is used")</span>
218     				</div>
219     				break;
220     
221     			case "recommendations/page/category":
222     				<div class="alert alert-dark m-0" role="alert">
223     					<span>@Translate("Articlelist: The articlelist will be shown here, if a product group is used")</span>
224     				</div>
225     				break;
226     		}
227     	}
228     }
229