Page folder in CMS

Tony Högbom

Vote:

I'm converting a 4.61 to CMS and have a question regarding file handling. I need to browse thru a page folder and get any files of a specific type. In the old version I do like this:


UnifiedDirectory pageDir = UnifiedPageDirectory.Get(CurrentPage.PageLink);

if (pageDir == null) 
    pageDir = UnifiedPageDirectory.Create(CurrentPage.PageLink);

...

UnifiedDirectory thumbsDir = pageDir.GetSubdirectory(ThumbsDirName);

...

UnifiedFile[] thumbs = thumbsDir.GetFiles((string)Global.EPConfig["EPsFilePattern"]);

Can anyone describe to me how this is done in CMS?

#15778

Sep 21, 2007 11:34

Per Hemmingson

Vote:

Hi, This is now Virtual path providers in CMS 5. We have a sample code about it (but it is written in april and things could have changed since): http://www.episerver.com/EPiServerCom/Templates/SampleSource.aspx?id=11336&epslanguage=EN Also a technote about VPP: http://www.episerver.com/en/EPiServer_Knowledge_Center/Documentation/TechNotes/CMS-Tech-Notes/Virtual-Path-Providers-in-EPiServer/ But the best source of information is the sdk (sdk.episerver.com). Look at the EPiServer.web.hosting namespace. For example in episerver 4 you wrote:


UnifiedFile file = UnifiedFileSystem.GetFile(path);

now in cms 5:


UnifiedFile uf = System.Web.Hosting.HostingEnvironment.VirtualPathProvider.GetFile(path) as UnifiedFile;

#16341

Sep 21, 2007 17:34

Mårten Berg

Vote:

I think the question that the answerer is cleverly dodging here really is: Is there a command to get the virtual path for the current EPiServer page? Previously, you could insert a PageReference as an argument to the UnifiedPageDirectory.Get() method and the path would resolve itself from there, but the EPi-intrisic method has now been removed in favor of the more generic System.Web.Hosting library. So, what to put in there instead, as an argument to System.Web.Hosting.HostingEnvironment.VirtualPathProvider.GetFile()? CurrentPage.LinkURL did not work for me.

#16342

Sep 24, 2007 13:15

Johan Björnfot

Vote:

Hi As you said in EPiServer CMS 5 we have adopted the VirtualPathProvider API. The way to get a directory (in your case a Page folder) in this API is to call System.Web.Hosting.HostingEnvironment.VirtualPathProvider.GetDirectory(virtualpath). So to get a pagefolder you need to pass in the virtualpath for the pagedirectory in the above statement. This is unfortunately not so obvious how to construct that. Below is a solution for this: using System.Web.Hosting; using EPiServer.Web.Hosting; string pageFolderPath = VirtualPathUtility.AppendTrailingSlash(VirtualPathHandler.PageDirectoryRootVirtualPath + CurrentPage["PageFolderID"]); VirtualDirectory pageDir = HostingEnvironment.VirtualPathProvider.GetDirectory(pageFolderPath); I have added an issue in our bug system that we should offer a more convenient way of getting page folder, e.g. by offer a Property PageFolder on PageData.

#16343

Oct 02, 2007 7:57

Vote:

Getting a handle to an existing file:


    UnifiedFile file = HostingEnvironment.VirtualPathProvider.GetFile(virtualPath) as UnifiedFile;

Get or Create a Page Folder:


    int folderId = (int) page.Property["PageFolderID"].Value;

    string pageDirectoryRootVirtualPath = VirtualPathHandler.PageDirectoryRootVirtualPath;
    IPageDirectory pageDirectory = HostingEnvironment.VirtualPathProvider.GetDirectory(pageDirectoryRootVirtualPath) as IPageDirectory;

    string virtualPathFromFolderId =  VirtualPathUtilityEx.Combine(pageDirectoryRootVirtualPath, VirtualPathUtility.AppendTrailingSlash(folderId.ToString()));
    UnifiedDirectory directory = HostingEnvironment.VirtualPathProvider.GetDirectory(virtualPathFromFolderId) as UnifiedDirectory;
    if (directory == null)
    {
        directory = pageDirectory.CreateSubdirectory(folderId.ToString(), page);
    }

NOTE! Folder will not “exist” for real until a file is saved inside it. It is important to call CreateSubdirectory with the page as parameter to setup security correctly! Getting a handle to a new file:


    UnifiedFile file = HostingEnvironment.VirtualPathProvider.GetFile(virtualPath) as UnifiedFile;
    if (file == null)
    {
        string virtualDir = VirtualPathUtility.GetDirectory(virtualPath);
        UnifiedDirectory directory = HostingEnvironment.VirtualPathProvider.GetDirectory(virtualDir) as UnifiedDirectory;
        return directory.CreateFile(VirtualPathUtility.GetFileName(virtualPath));
    }

Example of reading UnifiedFile:


    Bitmap image = null;
    using (Stream stream = file.Open())
    {
        image = (Bitmap) Image.FromStream(stream);
    }

Example of writing with UnifiedFile:


    using (Stream stream = file.Open(FileMode.Create, FileAccess.Write))
    {
        image.Save(stream, encoderInfo, encoderParams);
    }

Regards, Fredrik Haglund INEXOR AB – det digitala byggbolaget ™ http://blog.fredrikhaglund.se

#16344

Nov 28, 2007 12:35

Vote:

Hi I was interested in the sample provided http://www.episerver.com/EPiServerCom/Templates/SampleSource.aspx?id=11336&epslanguage=EN, but there is an error opening the zip.

Can you re-provide.

Regards,

Ian

#25924

Nov 12, 2008 13:16