Re: Data truncation problems

Hrm. I'm not able to replicate the phenomenon. I've copied and pasted 
/etc/services (approx 30k text) into a memo and submitted, which works. 
Then I've copied and pasted it into 10 consecutive memos in one survey 
page, which also works. So with up around 300k data in one page submit, 
I've not had a problem. I've not tested with more data.

Which leaves us with a system-specific problem. Can you post details about 
OS, perl version, mod_perl version, apache version, used browser and any 
other configuration details you think might be interesting? (For example, 
did you do any particular security settings in apache, such as limiting 
caches or similar)

   // Joel

On Tue, 21 Mar 2006, Jennifer Kurkoski wrote:

> 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]
>
Skickat av Joel Palmius <[email protected]>
till survey-discussion