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Romain NIO
Create link for a document library in a portlet
12 ottobre 2011 0.02
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Romain NIO

Punteggio: New Member

Messaggi: 4

Data di Iscrizione: 11 ottobre 2011

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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
12 ottobre 2011 1.26
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Oliver Bayer

Punteggio: Liferay Master

Messaggi: 875

Data di Iscrizione: 18 febbraio 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
12 ottobre 2011 5.38
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Romain NIO

Punteggio: New Member

Messaggi: 4

Data di Iscrizione: 11 ottobre 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
14 ottobre 2011 1.27
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Oliver Bayer

Punteggio: Liferay Master

Messaggi: 875

Data di Iscrizione: 18 febbraio 2009

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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
19 ottobre 2011 23.47
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Romain NIO

Punteggio: New Member

Messaggi: 4

Data di Iscrizione: 11 ottobre 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
7 marzo 2013 4.07
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me liferay

Punteggio: New Member

Messaggi: 23

Data di Iscrizione: 14 dicembre 2011

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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
8 agosto 2013 6.31
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Manish Yadav

Punteggio: Expert

Messaggi: 384

Data di Iscrizione: 26 maggio 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
23 agosto 2013 2.36
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Pawan Kumar

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Data di Iscrizione: 5 agosto 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
26 agosto 2013 4.59
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Akshy Kumar

LIFERAY STAFF

Punteggio: New Member

Messaggi: 13

Data di Iscrizione: 21 febbraio 2012

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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,