Re: Data truncation problems

"Jennifer Kurkoski" <[email protected]> Tue, 21 Mar 2006 15:46:18 -0800
Newsgroups gmane.comp.apache.mod-survey.general
Message-ID <[email protected]>
Hi Joel & all,

Thanks for the reply. Here are a few more details ....

The text submission wasn't especially large: just over 2K characters
(including spaces). And MEMO never once accepted the whole text block.

The total text accepted depended on the point in the survey at which I
pasted it in (that is, the question #).

The MEMO questions occur near the end and then again at the very end of the
survey. The later in the survey that I pasted in text blocks, the less total
text accepted (Note: By "accepted" I mean the amount of text that was
present when I pulled the data. There's no error or other indication from
mod_survey that any problem as occurred).

Also of note: once text was truncated in one MEMO question, no text appeared
at all in any subsequent MEMO questions.

The whole survey contains ~26 questions, all on a single page. Some
questions are MATRIX (ranging from 2-15 rows), some LIST, some CHOICE, some
TEXT and some MEMO.

I hope that helps. Looking forward to hearing quick and easy solutions. ;-)

Thanks again,

 - Jennifer
(whose disseration research kinda' depends on this thing)



On 3/21/06, Joel Palmius <[email protected]> wrote:
>
> Never saw this happen with reasonably large posts inside MEMOs myself. You
> should easily get a few kilobytes of data inside a MEMO. But there are
> reasons why large posts could be truncated.
>
> There are limitations in the http protocol automatically truncating very
> long data submission when using plain forms. For a GET submit, only
> something like 1k data is allowed in a submit, for POST this is larger
> although unknown (it is not defined, it is dependent on both browser and
> server). We currently use POST with no special encoding.
>
> Further, the MEMO (in practise html's textarea) is limited in length. This
> limitation is also unknown.
>
> For very long chunks of data (in the size of hundreds of k) inside one
> submit, one would have to use a different form encoding, and probably file
> uploads.
>
> Could you post more details on the structure of the survey and how large
> the posted data was?
>
>    // Joel
>
>
> On Mon, 20 Mar 2006, Jennifer Kurkoski wrote:
>
> > Hi all,
> >
> > I'm having two problems I'm hoping someone here can solve. This is the
> first
> > (the second coming in a separate msg).
> >
> > I'm running mod_survey version 3.2.2.
> >
> > Data are being truncated when written to file. I have several MEMO
> blocks in
> > my survey. I tested the curious behavior by posting large chunks of text
> (~3
> > long-ish paragraphs) into the MEMO blocks in different configurations
> > (skipping Q #1 & 4, for example). The result was always the same: The
> first
> > instance of the text block would be cut off at some point into it and no
> > other subsequent text blocks would apppear at all. Sadly, I discovered
> this
> > bug w/ a live survey. Blah.
> >
> > I tried searching the archives but found nothing. Anyone have any idea
> > what's going on?
> >
> > Many thanks!!
> >
> > - Jennifer
> >
> >
> > --
> > For best results, follow directions on bottle ...
> > and use my permanent address:
> >     [email protected]
> >
> Skickat av Joel Palmius <[email protected]>
> till survey-discussion
>



--
For best results, follow directions on bottle ...
and use my permanent address:
     [email protected]