[pmwiki-users] Image Attachments and sub-directories

[Ben Wilson]

On 5/20/06, DaveG <pmwiki at solidgone.com> wrote:
> I have a page in a group MyGroup.PageName. This particular page has a
> lot of images and I'd like to store them in their own sub-directory.
> Thus the images are in uploads/MyGroup/subdir.
 . . . [snip] . . .
>
> What syntax should I use?


You may want to influence $UploadPrefixFmt. Its default is '/$Group',
and you want something like '/$Group/images'. However, that would
affect all uploads. So, you need a way to tell it when to affect this
variable, and when to remain silent.

Perhaps interject a little subroutine? What I've coded below is a
rough draft. What I'm doing is interjecting a checksum routine before
the actual uploading of the page. I'm using the fact that PmWiki
already tracks which extensions are images via a fairly universal
standard--so I won't hardcode.

So, the routine extracts the extension, checks against the known image
formats, then appends the "image" subdirectory to UploadPrefixFmt when
we have a recognized image format.

    $HandleActions['postupload'] = 'PrefixImages'; #Defaults to
HandlePostUpload();

    function PrefixImages($p, $a='upload') {
        global $UploadExts, $UploadPrefixFmt
        $upname = $_REQUEST['upname'];
        if ($upname=='') {
            $uploadfile = $_FILES['uploadfile'];
            $upname=$uploadfile['name']; }

        $ext = split('.', $upname);
        $xtype = split('/', $UploadExts[$ext[-1]]);
        if ($xtype[0] == 'image') $UploadPrefixFmt .= '/images';
        HandlePostUpload($p, $a); } # Returning the fish to the stream.

-- 
Ben Wilson
" Mundus vult decipi, ergo decipiatur"