Re: [EP-underground] - Multiple files in eprints

Example situation.

I have a set of images which comprise my "EPrint" I want to store 
multiple ways of viewing them. The source images are very large.

3 Documents

A. PDF 
    A single PDF file which has the images and captions, one per page.
    /images.pdf

B. HTML
   An HTML document which contains all the images, in a scaled down form,
   for easy viewing.
   /index.html
   /image01.jpg
   /image02.jpg
   /image03.jpg
   /image04.jpg

C. Origional Raw Files
   The origional files (for preservation or generating new versions later)
   plus a .txt file with commenary of what each image is
   /contents.txt
   /image01.tiff
   /image02.tiff
   /image03.tiff
   /image04.tiff
   /image05.tiff

The normal eprints renderer will handle documents A & B as they only need
a simple link to a single file (the "start" file in the upload system)
eg.
Formats available:
 PDF (may require adobe acrobat)
 HTML

Now "C" is much more complex. You can specify a "main" file, but that's 
meaningless as this format is not intended for online browsing. What you 
would need to do is either not display it online at all

 foreach( @documents )
 {
   if( $_->get_value( "format" ) eq "raw" ) { next; }


but that's not great. How about we do something more clever! 

 foreach( @documents )
 {
   if( $_->get_value( "format" ) eq "raw" ) 
   { 
       my $b = $session->make_element( "b" );
       $b->appendChild( $session->make_text( "Raw Files" ) );
       $p->appendChild( $b );
       $p->appendChild( $session->make_element( "br" ) );
       my %files = $_->files;
       foreach my $filename ( sort keys %files )
       {
          my $url = $archive->get_conf( "documents_url" ) . "/" .
             sprintf( "%08d", $_->get_value( "eprintid" )) . "/" .
             EPrints::Document::docid_to_path( $session->get_archive, $_->get_value( "docid" ) ) . "/" .
             $file;
          my $link = $session->render_link( $url );
          $link->appendChild( $session->make_text( $filename ) );
          $p->appendChild( $link );
          $p->appendChild( $session->make_text( " (".$files{$filename}.")" ) );
          $p->appendChild( $session->make_element( "br" ) );
       }
   }
 
note that this example is not properly internationalised and
assumes raw documents are always publically available (it ignores
their "security" tag.)

I know this is hardly "intuative" but the problem is I can only
anticipate what people will use GNU EPrints for. The more questions
and problems I hear, then the more I understand the requirements!


On Sat, Oct 19, 2002 at 04:37:21 -0400, Baoping Zhang wrote:
> I happened to work on this today. I checked the file
> ArchiveRenderConfig.pm, and to my understanding, the following part
> is supposed to show the links to multile files associated with this
> eprint
> ====================================================
> # Available documents
>   my @documents = $eprint->get_all_documents();
> 
>   $p = $session->make_element( "p" );
>   $p->appendChild( $session->html_phrase( "page:fulltext" ) );
>   foreach( @documents )
>   {
>     if( $_->get_value( "format" ) eq "coverimage" )
>     {
>       $imagetd->appendChild( $session->make_element(
>         "img",
>         align=>"left",
>         src=>$_->get_url(),
>         alt=>$_->get_value( "formatdesc" ) ) );
>       next;
>     }
>     $p->appendChild( $session->make_element( "br" ) );
>     $p->appendChild( $_->render_citation_link() );
>   }
>   $docstd->appendChild( $p );
> ========================================================
> But it only shows one link. The array @documents only contains one element
> though. I logged into the database, and selected docid from the document
> table with the eprintid which has multiple files, but only got one docid.
> Should there be multiple docids? Did I do something wrong?
> 
> Thanks!
> 
> Baoping
> 
>  On Tue, 15 Oct 2002, ePrints Support wrote:
> 
> > Oh. There are several solutions.
> >
> > The easiest is to make 4 documents, all type PDF with descriptions
> > "part 1", "part 2" etc.
> >
> > A better solution would be to edit the renderer in ArchiveRenderConfig
> > to do something clever. The generation of the "abstract" page is
> > totally configurable but has a bit of a learning curve.
> >
> > On Tue, Oct 15, 2002 at 10:15:15 +0000, Belinda Weaver wrote:
> > > Dear all
> > > I sent this before but got no answer so am sending again in case
> > > anyone has words of wisdom. Maybe it is not possible to do what I
> > > want to do in which case I'll try a work-around the problem.
> > >
> > > I have been given a very large work for the archive here and had
> > > to break it up into four PDF files so as not to crash computers that
> > > tried to open it. However, despite uploading all four files, only one
> > > file appears as a clickable link from the record, so it looks as if
> > > there is only one file of 100 pages instead of four files totalling 600
> > > plus altogether. Am I doing something wrong? Do I have to upload it
> > > as four separate records, or is there a way to force the option of
> > > displaying the four spearate PDFs? I marked the first PDF as
> > > Shown First and assumed the others would follow in a list, but this
> > > did not happen.
> > > Any advice appreciated.
> > > regards
> > > Belinda
> > > Belinda Weaver,
> > > Co-ordinator, UQ E-Print Archive
> > > University of Queensland Library
> > > University of Queensland, Brisbane, Australia 4072.
> > > Tel   : +617 336 58281 Fax : +617 336 57930
> > > Email : [email protected]
> >
> > --
> >
> >  Christopher Gutteridge                   [email protected]
> >  ePrints2 Coder, Support and Stuff        +44 23 8059 4833
> >
> >

-- 

 Christopher Gutteridge                   [email protected]
 ePrints2 Coder, Support and Stuff        +44 23 8059 4833