Re: Upload Files
Re: Upload Files
- Subject: Re: Upload Files
- From: Larry Mills-Gahl <email@hidden>
- Date: Sat, 20 Nov 2010 13:55:19 -0500
I spent a little time on this but it was a relatively low priority so I
haven't finished. I could get a defined number of files uploaded without
any problem, but I wanted to be able to allow the user to add more files
to the upload batch. The problem was really a display problem because
when I submitted the (ajax or component) action to add another slot for
a file upload, the display of previous file names in the form would
disappear. The information about those files was still in the component
and ready to be uploaded, but for some reason, (my choice of bindings or
something) made the form not display the filenames. As I said, this
wasn't an urgent priority for me, so I let it sit (and it still sits).
As I said, if you have a fixed number of file slots for upload when the
component is created, this works fine. My problem came in when I added
to the original file array. Here is what I did (in case anybody else has
advice on the ability to add more slots for upload)
It seems that AjaxFileUpload and AjaxFlexibleFileUpload focus on single
file uploads so I worked with a basic WOFileUpload in order to get the
core bits down. I haven't gotten back to trying to use either of these
with multiple file uploads, so here is how I've done it up to now...
I have a class called FileUploadMetadata which is just used to contain
the information required to upload a file. That class contains the info
to bind to the WOFileUpload.
private String streamToFilePath ;
private String finalFilePath;
private String file2upload;
private String description;
private int bufferSize = 2000;
private String overwrite = "true";
The upload component contains a NSMutableArray<FileUploadMetadata>
called files2Upload (ok, I know I'm inviting brain damage by calling the
array files2Upload and the file inside the FileUploadMetadata
file2Upload, but if I don't put the hard to find typo bugs in who
will?... anyway...)
The upload method just iterates through the files2Upload and creates a
new file with the streamToFilePath
The stripped down upload form is:
<wo:WOForm enctype = "multipart/form-data" multipleSubmit = "true">
<fieldset>
<legend>Files:</legend>
<wo:WORepetition list = "$filesToUpload" item = "$aFileMetadata">
<wo:WOFileUpload streamToFilePath =
"$aFileMetadata.streamToFilePath" finalFilePath =
"$aFileMetadata.finalFilePath" overwrite = "$aFileMetadata.overwrite"
bufferSize = "$aFileMetadata.bufferSize" filePath =
"$aFileMetadata.file2upload" size = "60" />
description: <wo:WOTextField value="$aFileMetadata.description" />
<br />
</wo:WORepetition>
<wo:WOSubmitButton action = "$addFiles" value = "addAnotherFile" />
</fieldset>
<wo:WOSubmitButton action = "$upload" />
</wo:WOForm>
The addFiles action just adds another FileUploadMetadata to the
files2Upload NSMutableArray.
The upload action writes out some logging info for me to try to figure
out why the display isn't what I expect, but the bulk of the work is
just an iterator...
ListIterator<FileUploadMetadata> it = filesToUpload.listIterator();
while (it.hasNext()) {
FileUploadMetadata fum = it.next();
uploadInfoBuffer.append("\nfile " : " + fum.getFile2upload());
if (fum.getFile2upload() != null &&
fum.getFile2upload().length() > 0) {
File upfile = new File(fum.getStreamToFilePath());
}
}
On 11/19/10 10:17 AM, Frank Stock wrote:
> Hi all,
>
> I need to upload several files at a time, what is the best way to do it: AjaxUpload or AjaxFlexibleUpload?
> AjaxFlexibleFielUpload uses Adrew Valums routine, but it don't work like on the examples of valums website (there you can load several file at one time)
> AjaxUpload uses jquery, can I use that so it works with the rest of ajax?
>
> Thank you form giving advice,
> Frank Stock
>
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| | >Upload Files (From: Frank Stock <email@hidden>) |