Which "progress upload plugin" is good?

chamnap · July 11, 2007, 10:56am

Hello,

I want to implement one upload application and want to show the
progress upload bar to the user. I am appreciate if you all could give
me some idea about which plugin you think it is good for you.

Thanks
Chamnap

chamnap · July 11, 2007, 1:34pm

On 11 Jul 2007, at 10:55, Chamnap wrote:

I want to implement one upload application and want to show the
progress upload bar to the user. I am appreciate if you all could give
me some idea about which plugin you think it is good for you.

I’m using SWFUpload with great success: http://swfupload.mammon.se/

Has upload progress (using client side technology, so no periodical
hammering of your server) and has additional features such as upload
queue (optional), file type filtering, multiple selection dialog,
file size limiting (client side), …

Check out one of our public apps using it at http://demo.placid.be/
albums/55;manage

If you need sessions for your uploads (user needs to be logged in to
upload), this blog post will come in very handy:
http://blog.inquirylabs.com/2006/12/09/getting-the-_session_id-from-
swfupload/

Best regards

Peter De Berdt

chamnap · July 12, 2007, 3:26am

Hi Peter,

What do you think about Mongrel Upload Progress (http://
mongrel.rubyforge.org/docs/upload_progress.html)?

Thanks
Chamnap

chamnap · July 13, 2007, 5:16am

I agree with your idea.

Chamnap

chamnap · July 12, 2007, 9:42am

On 12 Jul 2007, at 03:25, Chamnap wrote:

What do you think about Mongrel Upload Progress (http://
mongrel.rubyforge.org/docs/upload_progress.html)?

Although I’m sure it’s a very good solution for other people on this
list, my reasons not to use it are:

Having to run another service (DRb) just for upload progress
doesn’t really appeal me. SWFUpload doesn’t need another service to
do what it does.
The PeriodicalUpdater sends a status request to the server every
three seconds, some of our apps are built around uploading files.
Depending on the number of users, that would mean our server just
gets hammered just for upload progress. SWFUpload gives constant
feedback on the upload without one request to the server, it just
measures the stream passed through the Flash file.
I really needed client side filetype filtering and filesize
limiting. It’s of no use to us that multigigabyte file is first
uploaded just to let the user know he couldn’t do that. If it’s
uploaded, it’s too late, as simple as that. Javascript doesn’t allow
local file access, but Flash does have some limited ability that
comes in handy.
SWFUpload is just so dead easy to implement: put the files in your /
public/javascripts/ folder, include the javascript in the pages where
you want “ajax uploads”, and just HTML code and some javascript
callbacks using prototype/scriptaculous.

As I said, some people really don’t want to use a Flash-based
solution out of principle or because their userbase doesn’t have
Flash installed, but our users for the most part are people that get
all these funny little youtube movies from their coworkers and
friends and watch them during their lunch break, i.e. Flash is
installed everywhere For us, SWFUpload is just the best solution
to our problem.

Best regards

Peter De Berdt

chamnap · August 6, 2007, 12:04pm

On 11 Jul 2007, at 12:37, Peter De Berdt wrote:

I’m using SWFUpload with great success: http://swfupload.mammon.se/

Has upload progress (using client side technology, so no periodical
hammering of your server) and has additional features such as
upload queue (optional), file type filtering, multiple selection
dialog, file size limiting (client side), …

The site seems to be down at the moment. Does anybody happen to have
the SWFUpload library available publicly where I could grab it?

Thanks and regards,

Andy S.

chamnap · August 6, 2007, 2:07pm

On 06 Aug 2007, at 12:03, Andrew S. wrote:

The site seems to be down at the moment. Does anybody happen to have
the SWFUpload library available publicly where I could grab it?

Site’s up for me

Best regards

Peter De Berdt

chamnap · August 7, 2007, 3:47pm

On 11 Jul 2007, at 12:37, Peter De Berdt wrote:

swfupload/

I’m trying to use SWFUpload but keep getting 302s returned when I
upload a file.

I am picking up the session correctly as per the blog post mentioned
above. I am able to read and store the files on the server side.

But instead of heeding my redirect at the end of my action, SWFUpload
somehow throws a 302s and stops the redirect.

Nothing untoward shows up in my Rails log. Each action just
completes with a 302.

I’d really like this to redirect as my action says.

Any help would be greatly appreciated.

Thanks and regards,
Andy S.

chamnap · August 7, 2007, 4:20pm

On 07 Aug 2007, at 15:46, Andrew S. wrote:

I’m trying to use SWFUpload but keep getting 302s returned when I
upload a file.

I am picking up the session correctly as per the blog post mentioned
above. I am able to read and store the files on the server side.

This code needs to be in environment.rb

But instead of heeding my redirect at the end of my action, SWFUpload
somehow throws a 302s and stops the redirect.

Nothing untoward shows up in my Rails log. Each action just
completes with a 302.

I’d really like this to redirect as my action says.

Any help would be greatly appreciated.

This is my code (still using an older version of swfupload, but the
newer version should be similar):

Application controller
before_filter :set_cookie_session

def set_cookie_session
@session_id = cookies[:_session_id]
end

View

                     mmSWFUpload.init({
                       upload_backend : "<%= url_for(:action =>

“upload_file”, :id => @myrecord.id, :_session_id => @session_id)-%>",
target : “SWFUpload”,
allowed_filesize : “40000”,
allowed_filetypes : “.jpg;.png;*.zip”,
upload_start_callback : ‘uploadStart’,
upload_progress_callback : ‘uploadProgress’,
upload_complete_callback : ‘uploadComplete’,
upload_queue_complete_callback :
‘uploadQueueComplete’
});
…

       uploadQueueComplete = function() {
                               ...
                               <%= remote_function(:url =>

{:action => :render_uploaded_files, :id => @myrecord.id}) -%>;
}

       </script>

Controller

def upload_file
# store the file, then
render :nothing => true
end

The key point to understand here is to render nothing or just a
status code at the end of the method. Don’t redirect. You need to
handle the result by using the upload_complete_callback from
SWFUpload (e.g. call a method through AJAX to render to file to the
layout). The result code you send back at the end of the upload_file
method let’s the Flash movie SWFUpload uses know if the file was
uploaded successfully, it doesn’t interface with your HTML directly.
Sending this result code back will cause the Flash movie to trigger
the upload_queue_complete_callback, and then you’re free to do
whatever you want again.

Best regards

Peter De Berdt

chamnap · August 7, 2007, 5:39pm

On 7 Aug 2007, at 15:18, Peter De Berdt wrote:

upload_file method let’s the Flash movie SWFUpload uses know if the
file was uploaded successfully, it doesn’t interface with your HTML
directly. Sending this result code back will cause the Flash movie
to trigger the upload_queue_complete_callback, and then you’re free
to do whatever you want again.

Thank you very much for that insight – it’s exactly what I needed.
Everything now works perfectly.

Thanks too for the code snippets.

Regards,
Andy S.

chamnap · August 7, 2007, 4:12pm

On 7 Aug 2007, at 14:46, Andrew S. wrote:

Nothing untoward shows up in my Rails log. Each action just
completes with a 302.

I’d really like this to redirect as my action says.

Just to clarify: I know that Rails redirects with a 302 status code
so that is working correctly. The question I’m asking is how to
prevent SWFUpload from treating this as an error.

Thanks in advance,

Andy S.