RE: [Webware-discuss] WebKit dies

[jose <jo...@cy...>]

I remember seeing this in the discussion before, try and search the
list, If I remember correctly I think the answer was to use JavaScript
to first disable the button (can't hit it more then once if it's not
there) and then send the data.

Jose

-----Original Message-----
From: web...@li...
[mailto:web...@li...] On Behalf Of
Eduardo Elgueta
Sent: Thursday, April 08, 2004 3:46 PM
To: dav...@se...
Cc: webware-discuss
Subject: Re: [Webware-discuss] WebKit dies


David,

Thank you for your answer, but I'm not using that method. In fact, it's=20
a simple form that works pretty well most of the time.

The problem is some users (don't ask me why) double-click submit=20
buttons. Usually they receive an error message (because the record was=20
already updated), but sometimes happens the problem I described.

Anyway, I'll review my code again.

Ed.

David London wrote:

>Eduardo,
>Just looking at the error message I would be tempted to say that you=20
>are experiencing a similar problem to what I had discovered. What I had

>found was that if all of your code was in the context directory and you

>were using forwarding or callMethodOfServlet on a derived class=20
>something went wrong with the import and produced a similar set of=20
>error messages. There were 2 possible fixes; 1) use the CVS versions of

>Webkit (or at least ServletFactory.py) or 2) move all of the source=20
>code into a subdirectory of the context. Why option 2 works is a=20
>mystery to me, but it did.
>
>Although I ended up with an error message, not a crash.
>
>Best of Luck
>David London
>
>On Thu, 2004-04-08 at 15:56, Eduardo Elgueta wrote:
> =20
>
>>Hi All,
>>
>>WebKit dies with no error message when a user presses repeatedly the
>>submit button (the user can press the button two or three times before

>>receiving an error message from Apache).
>>
>>The page in question saves posted form data to a MySQL database using
>>MySQLdb.
>>
>>Sometimes, the following error message (in Errors.csv) is recorded=20
>>just
>>before crashing:
>>
>>"Thu Apr  8 15:52:12
>>2004","Input.py","/home/webwadmin/ww_apps/environ/Input.py","_mysql_ex
ceptions.OperationalError","(2013,=20
>>'Lost connection to MySQL server during=20
>>query')","/home/webwadmin/ww_apps/ErrorMsgs/Error-Input.py-2004-04-08-
15-52-12-44505.html"
>>
>>This is the traceback:
>>
>>[Thu Apr  8 15:52:42 2004] [error] WebKit: Error while executing=20
>>script
>>/home/webwadmin/ww_apps/environ/Input.py
>>Traceback (most recent call last):
>>  File "/usr/local/Webware-0.8.1/WebKit/Application.py", line 415, in=20
>>dispatchRequest
>>    self.handleGoodURL(transaction)
>>  File "/usr/local/Webware-0.8.1/WebKit/Application.py", line 567, in=20
>>handleGoodURL
>>    self.respond(transaction)
>>  File "/usr/local/Webware-0.8.1/WebKit/Application.py", line 776, in=20
>>respond
>>    transaction.respond()
>>  File "/usr/local/Webware-0.8.1/WebKit/Transaction.py", line 105, in=20
>>respond
>>    self._servlet.respond(self)
>>  File "/usr/local/Webware-0.8.1/WebKit/HTTPServlet.py", line 38, in
respond
>>    method(trans)
>>  File "/home/webwadmin/ww_apps/navix/NvxStdPage.py", line 13, in=20
>>respondToPost
>>    self._respond(transaction)
>>  File "/usr/local/Webware-0.8.1/WebKit/Page.py", line 73, in _respond
>>    self.writeHTML()
>>  File "/usr/local/Webware-0.8.1/WebKit/Page.py", line 135, in
writeHTML
>>    self.writeBody()
>>  File "/usr/local/Webware-0.8.1/WebKit/Page.py", line 204, in
writeBody
>>    self.writeBodyParts()
>>  File "/home/webwadmin/ww_apps/environ/InnerPage.py", line 40, in=20
>>writeBodyParts
>>    EnvStdPage.writeBodyParts(self)
>>  File "/home/webwadmin/ww_apps/navix/NvxStdPage.py", line 42, in=20
>>writeBodyParts
>>    self.writeContent()
>>  File "/home/webwadmin/ww_apps/environ/Input.py", line 76, in
writeContent
>>    self.samp =3D DBSample(self.ses)
>>  File "/home/webwadmin/ww_apps/environ/AppObjects.py", line 103, in=20
>>__init__
>>    NvxDBObject.__init__(self, ses, 'sample')
>>  File "/home/webwadmin/ww_apps/navix/NvxDBObject.py", line 21, in
__init__
>>    self.loadDescription()
>>  File "/home/webwadmin/ww_apps/navix/NvxDBObject.py", line 26, in=20
>>loadDescription
>>    c.execute(qry)
>>  File "/usr/lib/python2.2/site-packages/MySQLdb/cursors.py", line 61,

>>in execute
>>    r =3D self._query(query)
>>  File "/usr/lib/python2.2/site-packages/MySQLdb/cursors.py", line
168,=20
>>in _query
>>    rowcount =3D self._BaseCursor__do_query(q)
>>  File "/usr/lib/python2.2/site-packages/MySQLdb/cursors.py", line
112,=20
>>in __do_query
>>    db.query(q)
>>OperationalError: (2013, 'Lost connection to MySQL server during
query')
>>
>>Any hints, suggestions, pointers? Is there any "debug mode" available
>>for webki?
>>
>>TIA,
>>
>>Ed.
>>   =20
>>
>
> =20
>

--=20
Eduardo Elgueta
Senior Consultant
Navix

correo/email: eel...@na...
tel=E9fono/phone: +56 (2) 209-8905
celular/mobile: +56 (9) 821-0033
web: www.navix.cl

Av. Pedro de Valdivia 555 Of. 216
Providencia 7500913
Santiago, Chile



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