[Seaside] Handling errors - staging/production

[Boris Popov, DeepCove Labs]

John,

You can configure the content rendered by your exception handler class using,

#titleForException:
#updateHtmlRoot:forException:
#renderContentForException:on:

Only WAWalkbackErrorHandler should be opening a debugger on the server, once you install your own handler which is subclassed from WAErrorHandler, it won't be doing it by default.

-Boris

-----Original Message-----
From: seaside-bounces at lists.squeakfoundation.org [mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf Of John Toohey
Sent: 02 June 2011 13:06
To: Seaside - general discussion
Subject: Re: [Seaside] Handling errors - staging/production

I have that with the Seaside class, but am not sure what to do beyond that (if anything). Should I send a redirect to an error page or handle the exception some other way. On my production servers, I often see socket timeout errors etc., and would like to just have these emailed/logged to disk, and not have the debugger come up in the image.

On Thu, Jun 2, 2011 at 12:19, Boris Popov, DeepCove Labs <boris at deepcovelabs.com> wrote:
> John,
>
> We use our own mail handling system on top of clients provided by 
> VisualWorks, so verbatim examples wouldn't be helpful to you, but here 
> are some snippets,
>
> client := (SMTPClient new)
>                hostName: host;
>                user: (NetUser username: username password: password);
>                yourself.
> message := (MailMessage newTextPlain)
>                from: from;
>                replyTo: from;
>                to: to;
>                cc: cc;
>                bcc: bcc;
>                date: Timestamp now;
>                subject: subject;
>                text: body;
>                yourself.
> mimes do: [:each | message addAttachment: each].
> message prepareForTransport.
> client send: message.
>
> -Boris
>
> -----Original Message-----
> From: seaside-bounces at lists.squeakfoundation.org 
> [mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf Of John 
> Toohey
> Sent: 02 June 2011 12:12
> To: Seaside - general discussion
> Subject: Re: [Seaside] Handling errors - staging/production
>
> Can you show the actual code that you are using? I've setup Postfix relaying to GMail on my laptop, and am using the WAEMailErrorHandler, but while I can get one message sent, I then usually get a WAIllegalStateException in the image. I'm not really sure if I am handling the exception correctly, but what I want to do it log/email it, and then have the app try to continue.
>
> Thanks.
>
>
> On Mon, May 30, 2011 at 13:46, Boris Popov, DeepCove Labs <boris at deepcovelabs.com> wrote:
>> We implement our own subclass of WAHtmlErrorHandler which logs the 
>> exception and sends email notification before presenting an error 
>> page to the browser,
>>
>> | app |
>> app := WAAdmin register: self asApplicationAt: 'online'.
>> app filter configuration at: #exceptionHandler put: WebErrorHandler.
>>
>> WebErrorHandler>>handleDefault: ex
>>  Manager
>>   notifyUnhandledException: ex
>>   in: self
>>   fatal: false.
>>  super handleDefault: ex.
>>
>> Hope this helps,
>>
>> -Boris
>>
>> -----Original Message-----
>> From: seaside-bounces at lists.squeakfoundation.org
>> [mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf Of 
>> Francois Stephany
>> Sent: 30 May 2011 13:42
>> To: seaside at lists.squeakfoundation.org
>> Subject: [Seaside] Handling errors - staging/production
>>
>> What is the preferred way to handle errors on a production seaside application? Is there some kind of http://www.hoptoadapp.com/ to handle applications crashes/walkback?
>>
>> How do you typically do to handle errors?
>>
>> Cheers,
>> Francois
>>
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>>
>
>
>
> --
> ~JT
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>



--
~JT
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