[Seaside] Legacy system and Seaside

Thierry Thelliez thierry.thelliez.tech at gmail.com
Wed Sep 9 23:05:00 UTC 2009

Thanks Boris, the example helps.

One more question. Can you pass a parameter within Seaside from one
page to another? I am not asking about the regular Seaside way. This
is in the context of an older application ported to Seaside.

Assuming that I have a regular Seaside page pointing to another page:

		canvas anchor
			callback: [ self show: LegacyPage new ];
			with: 'LegacyApp'.

I would like to pass a variable to 'LegacyPage'. I implemented
'updateURL:' and 'initialRequest:' for LegacyPage (subclass of

updateUrl: aUrl
	super updateUrl: aUrl.
	aUrl addParameter: 'v1' value: 'xyz'.

initialRequest: aRequest
	super initialRequest: aRequest.
	self halt: 'initialQuest'.

I never get to the halt above. What am I missing?


On Wed, Sep 9, 2009 at 9:36 AM, Boris Popov<boris at deepcovelabs.com> wrote:
> Thierry,
> Have you tried implementing the following on your root component and if
> so, what happened?
> initialRequest: aRequest
>        super initialRequest: aRequest.
>        aRequest
>                at: 'var1'
>                ifPresent: [:v | Transcript show: v].
> Regards,
> -Boris
> --
> +1.604.689.0322
> DeepCove Labs Ltd.
> 4th floor 595 Howe Street
> Vancouver, Canada V6C 2T5
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> -----Original Message-----
> From: seaside-bounces at lists.squeakfoundation.org
> [mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf Of Thierry
> Thelliez
> Sent: Wednesday, September 09, 2009 8:34 AM
> To: Seaside - general discussion
> Subject: [Seaside] Legacy system and Seaside
> Hello,
> I am trying to port an older system to Seaside. The code is in
> Smalltalk and it uses explicit HTTP POST and GET variables.
> Is there a way in Seaside to receive a variable in the url (ie
> http://abc/xyz?var1=123) and of course extract it within the Smalltalk
> code.
> Searching this forum, the closest I found was the following in 2007,
> but I cannot figure out how to make this work.
> ---------------------------------------------
> 2007/10/16, Randal L. Schwartz <merlyn at stonehenge.com>:
>> I'm replacing a badly-written (that is, not *mine*) Perl application
> with a
>> seaside application.  Let's say I've installed my application at
>> /seaside/booking.  How do I intercept, say,
>> /seaside/booking?legacy=app&does=this and turn that into an initial
>> hit into my app with a couple of instance vars set, so that
>> all the remaining /seaside/booking?_s=...&_c=... still work?
> Implement #initialRequest (don't forget to send super). WABrowser has
> an example. If you want the parameters (legacy and does) to stay
> you'll also have to implement #updateUrl:
> Cheers
> Philippe
> ----------------------------------------------
> Thanks,
> Thierry
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