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Romain NIO
Create link for a document library in a portlet
October 12, 2011 12:02 AM
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Romain NIO

Rank: New Member

Posts: 4

Join Date: October 11, 2011

Recent Posts

Hi emoticon,

I'm creating a portlet where users will be able to download files from the liferay document library. I'm able to retrieve and display alldocuments from the database (with com.liferay.portlet.documentlibrary.service.DLFileEntryLocalServiceUtil) but I want to display a link to download the file, how to do it ? any ideas ?emoticon

Regards,
Romain.
Oliver Bayer
RE: Create link for a document library in a portlet
October 12, 2011 1:26 AM
Answer

Oliver Bayer

Rank: Liferay Master

Posts: 875

Join Date: February 18, 2009

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Hi Romain,

why not using the already existing document library display portlet? If you want to have your own portlet you can refer to the dl display portlet on how to create the download links.

Greets Oli
Romain NIO
RE: Create link for a document library in a portlet
October 12, 2011 5:38 AM
Answer

Romain NIO

Rank: New Member

Posts: 4

Join Date: October 11, 2011

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Hi Olivier,

Ok I think this is a good idea, but where could I find the default liferay document portlet? How to see the source code??

Thanks,
Romain.
Oliver Bayer
RE: Create link for a document library in a portlet
October 14, 2011 1:27 AM
Answer

Oliver Bayer

Rank: Liferay Master

Posts: 875

Join Date: February 18, 2009

Recent Posts

Hi Romain,

sorry for the late reply.

You can find the document library portlet in the control panel or you can add the "document library display porlet" onto each page you like by using the "add application" menu. If you're using Liferay trunk or nightly builds I think it should be called "documents and media portlet" or sth that way (if I remember right).

The source code from the jsps can be found at "webapps \ ROOT \ html \ portlet \ document_library*". If you need the backend/ bean code download Liferay src and look out for DL* interfaces and classes like e.g. "DLFolder" which defines a folder or "DLFileEntry" which defines any element uploaded to the document library . If you want to add/ modify/ delete a file/ folder from the document library take a look at the DL*LocalServiceUtil classes e.g. DLFolderLocalServiceUtil.

HTH Oli
Romain NIO
RE: Create link for a document library in a portlet
October 19, 2011 11:47 PM
Answer

Romain NIO

Rank: New Member

Posts: 4

Join Date: October 11, 2011

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Thank you so much Olivier (and sorry for the delay..)

I found all files and the document portlet and I managed to find the link to download a file ! emoticon It possible to use it in an other portlet like that :
Java code
 1
 2DLFileEntry fileEntry =com.liferay.portlet.documentlibrary.service.DLFileEntryLocalServiceUtil.getFileEntry(fileId);
 3fileEntry = fileEntry.toEscapedModel();
 4
 5long fileEntryId = fileEntry.getFileEntryId();
 6long folderId = fileEntry.getFolderId();
 7String name = fileEntry.getName();
 8String extension = fileEntry.getExtension();
 9String title = fileEntry.getTitle();
10
11ThemeDisplay themeDisplay=null;
12if (renderRequest != null) {
13  themeDisplay = (ThemeDisplay) renderRequest.getAttribute(WebKeys.THEME_DISPLAY);
14}
15String fileUrl = themeDisplay.getPortalURL() + themeDisplay.getPathContext() + "/documents/" + themeDisplay.getScopeGroupId() + "//" + folderId +  "//" + HttpUtil.encodeURL(HtmlUtil.unescape(title));


HTML code
1<a href="<%=fileUrl %>">Download the file</a>


Thank olivier!!
me liferay
RE: Create link for a document library in a portlet
March 7, 2013 4:07 AM
Answer

me liferay

Rank: New Member

Posts: 23

Join Date: December 14, 2011

Recent Posts

It is fine we can create document link as suggested above.
But when we do not have themdisplay object how can we create that link?
What I have is just fileentry object inside my model listener?
Anyone has any idea?
Manish Yadav
RE: Create link for a document library in a portlet
August 8, 2013 6:31 AM
Answer

Manish Yadav

Rank: Expert

Posts: 384

Join Date: May 26, 2012

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Dear Romain NIO,

Create link for file works perfect .Can we create HyperLink for folder ???




Thanks & Regards
Manish Banwari lal yadav
Pawan Kumar
RE: Create link for a document library in a portlet
August 23, 2013 2:36 AM
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Pawan Kumar

Rank: New Member

Posts: 5

Join Date: August 5, 2013

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DLFileEntry fileEntry =com.liferay.portlet.documentlibrary.service.DLFileEntryLocalServiceUtil.getFileEntry(fileId);

Can Any one Suggest me where we get it fileId value?

When I am using this code then give the following error:
fileId cannot be resolved to a variable...

Thanks,
Pawan
Akshy Kumar
RE: Create link for a document library in a portlet
August 26, 2013 4:59 AM
Answer

Akshy Kumar

LIFERAY STAFF

Rank: New Member

Posts: 13

Join Date: February 21, 2012

Recent Posts

Hi Pawan,

I think it is fileEntryId.

Please use codes mentioned below, as an example to get fileEntryId.

First Create a long variable fileEntryId .


List<DLFileEntry> ls = com.liferay.portlet.documentlibrary.service.DLFileEntryLocalServiceUtil.getDLFileEntries(-1,-1);

for(DLFileEntry ts:ls)
{

fileEntryId = ts.getFileEntryId();

}

Thanks,