Question

我正在开发Umbraco 7 MVC应用程序，我的要求是在Umbraco中添加 Item 。 项目名称应该是唯一的。对于使用下面的代码，但我收到错误“哎呀：这个文件已发布但不在缓存中（内部错误）”

      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());
            }
        }

然后我尝试添加代码以取消发布但它不起作用，即节点正在发布。以下是我的代码

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());
            }
        }

但是使用上面的代码，如果你给CurrentPublishedNodeId = 2345 // someOthernodeId它的未发布正确。

你能帮我解决这个问题。

Answer 1

您不必这样做，如果该项目已存在，Umbraco会自动将(1)附加到该名称（因此它是唯一的）。

如果您不想要这种行为，可以通过以下方式检查：

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;
        }
    }
}

我认为您的问题可能是您没有循环遍历所有PublishedEntities，而是使用其他方式来确定当前页面ID。

注意：请不要使用library.UpdateDocumentCache这个，完全没有必要，ContentService.UnPublish将负责缓存状态。

Umbraco取消发布事件不适用于当前节点

1 个答案: