Umbraco unpublish事件不適用於當前節點

Question

我正在開發Umbraco 7 MVC應用程序，我的要求是在Umbraco內部添加項目。 商品名稱應該是唯一的。對於用下面的代碼，但我得到的錯誤「哎呀呀：本文件發佈，但不是在緩存（內部錯誤）」

 protected override void ApplicationStarting(UmbracoApplicationBase umbracoApplication, 
      ApplicationContext applicationContext) 
     { 
      ContentService.Publishing += ContentService_Publishing; 
     } 


     private void ContentService_Publishing(IPublishingStrategy sender, PublishEventArgs<IContent> e) 
     { 
      try 
      { 
       if(newsItemExists) 
       { 
        e.Cancel = true; 
       } 
      } 
      catch (Exception ex) 
      { 
       e.Cancel = true; 
       Logger.Error(ex.ToString()); 
      } 
     } 

然後我嘗試添加代碼，以取消發佈，但它不工作即節點正在發佈。下面是我的代碼

private void ContentService_Publishing(IPublishingStrategy sender, PublishEventArgs<IContent> e) 
     { 
      try 
      { 
       int itemId=1234; //CurrentPublishedNodeId 
       if(newsItemExists) 
       { 
        IContent content = ContentService.GetById(itemId); 
        ContentService.UnPublish(content); 
        library.UpdateDocumentCache(item.Id); 
       } 
      } 
      catch (Exception ex) 
      { 
       e.Cancel = true; 
       Logger.Error(ex.ToString()); 
      } 
     } 

但與上面的代碼，如果你給CurrentPublishedNodeId = 2345 //正確someOthernodeId其未公佈。

你能幫我解決這個問題嗎？

Answer 1

您不必這樣做，如果該項目已經存在（因此它是唯一的），Umbraco會自動附加(1)到名稱。

如果不希望這種行爲，您可以通過以下方式查詢：

protected override void ApplicationStarting(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext) 
{ 
    ContentService.Publishing += ContentService_Publishing; 
} 

private void ContentService_Publishing(Umbraco.Core.Publishing.IPublishingStrategy sender, PublishEventArgs<IContent> e) 
{ 
    var contentService = UmbracoContext.Current.Application.Services.ContentService; 

    // It's posible to batch publish items, so go through all items 
    // even though there might only be one in the list of PublishedEntities 
    foreach (var item in e.PublishedEntities) 
    { 
     var currentPage = contentService.GetById(item.Id); 

     // Go to the current page's parent and loop through all of it's children 
     // That way you can determine if any page that is on the same level as the 
     // page you're trying to publish has the same name 
     foreach (var contentItem in currentPage.Parent().Children()) 
     { 
      if (string.Equals(contentItem.Name.Trim(), currentPage.Name.Trim(), StringComparison.InvariantCultureIgnoreCase)) 
       e.Cancel = true; 
     } 
    } 
} 

我認爲你的問題可能是你沒有通過所有PublishedEntities循環，但使用一些其他的方式來確定當前頁面ID。

注意：請不要使用library.UpdateDocumentCache這個，絕對沒有必要，ContentService.UnPublish會照顧緩存狀態。