Thank you for the suggestion, I will be looking at the javascript filereader!
Using this method with javascript, if I am working with image files, do you know if this will alter the size of the file? I need the size to remain consistent, which is why I will not be able to use the provided uploads option in web2py forms. On Monday, May 2, 2016 at 6:40:11 AM UTC-4, Mirek Zvolský wrote: > > For input you could save the files temporary as upload files, > > or without saving them you can use HTML5 javascript FileReader and save > the file content to hidden <input>s. > No idea if web2py will upload something based on file handlers from > SQLFORM.factory with upload fields. > If so, you will upload it twice (from hidden fields and as standard > upload), and so you could re-create both file <input>s before the submit > via javascript DOM manipulation (because it is not possible set the value > of upload field from javascript, nor clear it: the 1-st is clever, but the > 2nd stupid :( ) > > For output you could > - return the resulting file content as string from the controller (I hope > web2py makes nothing with string output), > - and change http headers for download (Content-Disposition or so) to > force Save dialog. > > Maybe somebody has much much better answer, but previous is not too > difficult, few lines of code for FileReader. FileReader is supported in > modern browsers but not IE8. (IE9?) > > > > > Dne pondělí 2. května 2016 4:34:40 UTC+2 teld dlet napsal(a): >> >> I have a python program where I prompt the user for two files, and I do >> some programming and output a new file... >> >> How can I make this work with web2py? >> >> >> I was thinking having a form with 2 upload fields, and a text field so >> they can give a name to the file that will be generated from the code. >> After form submission I access the two uploaded files from form.vars and do >> what needs to be done, then not sure how I would output a downloadable file >> for the user? >> >> None of these files need to be saved in the database for later retrieval >> so not sure if I should just use sqlformfactory, this is all something that >> would happen during their session and they can choose to save the new file >> to their computer. >> >> >> >> Any advice will help, thank you >> >> >> -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
