Scott, you can improve the documentation if you feel it need to : https://github.com/mdipierro/web2py-book
I think we can't be responsible for all the issue related to filesystem differencies... I think Massimo is really kind to pin point the issue like that... And since we have the information we should make it available... :) Richard On Tue, Jul 21, 2015 at 10:50 AM, Scott Hunter <[email protected]> wrote: > I'm sorry, I wasn't clear. I was asking about the lack of documentation: > was there a decision not to document this (if so, I'd be curious as to its > basis), or was it just an oversight that will hopefully be remedied in the > future? > > - Scott > > > On Tuesday, July 21, 2015 at 10:41:55 AM UTC-4, Massimo Di Pierro wrote: >> >> web2py renames the uploaded filenames as tablename+code+hash.extension >> >> The total len(tablename+code+hash+extension)<=512 >> This means len(hash) <= 512 - len(tablename+code+extension) >> The hash is a base64 encoded of the original filename. >> If this hash exceeds 512 - len(tablename+code+extension) the file is >> truncated. >> Mind this is still a lot of characters. >> >> Massimo >> >> >> On Monday, 20 July 2015 20:36:50 UTC-5, Scott Hunter wrote: >>> >>> Is this an oversight or a conscious decision? If I understand you, if >>> one's filesystem allowed filenames greater than 512 characters, long-enough >>> but still legal names will still be truncated, and thus thwart the ability >>> to extract the original file name. That could be a nasty surprise. >>> >>> P.S. As I understand it, it is a permanent filename. >>> >>> On Monday, July 20, 2015 at 8:47:36 AM UTC-4, Massimo Di Pierro wrote: >>>> >>>> Nowhere. We only state that Field(..., lenght=....) is a parameter. We >>>> do not say that for "upload" fields this is also the length of the tmp >>>> filename. >>>> >>>> On Monday, 20 July 2015 05:28:02 UTC-5, Scott Hunter wrote: >>>>> >>>>> Where is this spelled out in the documentation? I could not find it. >>>>> >>>>> - Scott >>>>> >>>>> On Monday, July 20, 2015 at 2:24:24 AM UTC-4, Massimo Di Pierro wrote: >>>>>> >>>>>> This is handled by web2py. The filenames are truncated according to >>>>>> the size of the uploadfield. This defaults to 512. In new versions of >>>>>> windows the make file length has been reduced so you have to do >>>>>> >>>>>> Field(name, 'upload', size=200) >>>>>> >>>>>> and all filenames will be limited to 200 bytes. >>>>>> >>>>>> On Sunday, 19 July 2015 21:06:42 UTC-5, Scott Hunter wrote: >>>>>>> >>>>>>> This is not only an issue with Windows; any filesystem with a >>>>>>> filename limit (however big) can hit this problem. As this is all being >>>>>>> handled by web2py, and the user is selecting the file to upload, where >>>>>>> would this "logic" go, and why isn't web2py handling it? >>>>>>> >>>>>>> - Scott >>>>>>> >>>>>>> On Saturday, March 16, 2013 at 1:04:28 PM UTC-4, Niphlod wrote: >>>>>>>> >>>>>>>> I was wrong. the first part of the "hash" is a uuid, the second is >>>>>>>> a base16 encoding of the original filename. >>>>>>>> >>>>>>>> Seems that you need some logic to cut down long files if you plan >>>>>>>> to host on Windows. >>>>>>>> >>>>>>>> http://web2py.com/books/default/chapter/29/07?search=uploads#Storing-the-original-filename >>>>>>>> <http://www.google.com/url?q=http%3A%2F%2Fweb2py.com%2Fbooks%2Fdefault%2Fchapter%2F29%2F07%3Fsearch%3Duploads%23Storing-the-original-filename&sa=D&sntz=1&usg=AFQjCNHoAJ_7v4pFTQfLJ7w7itNYEBhoPw> >>>>>>>> >>>>>>> -- > 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 [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
