Seaside updater
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I'm puzzled how to use #updater. I'm trying to use a checkbox to add text to
a textArea input field. For example,... renderBillingCheckboxAndAddressOn: html html div class: 'frow'; with: [html break. html paragraph: [html checkbox value: useShippingAddress; callback: [:value | useShippingAddress := value]; onClick: (html updater id: 'shipping'; callback: [:r | useShippingAddress := useShippingAddress not. self renderBillingAddressOn: r] ); with: 'Use shipping address as billing address also']]. html div class: 'frow'; with: [html span class: 'formlabel'; with: [html text: 'Billing address']. html span class: 'forminput'; with: [self renderBillingAddressOn: html]] This code works, but I'm sure it's not the right way to do things. The reason I have the 'useShippingAddress := useShippingAddress not' nonsense is because without it, I can't get #useShippingAddress to have the correct checkbox value in #renderBillingAddressOn:. The problem is, #useShippingAddress only gets the correct checkbox value on form submission, NOT upon invocation of #onClick:. Ultimately, what I want is for #onClick: to use whatever value is selected by the form control, whether the control is a checkbox or radio button or dropdown menu. This *has* to be doable, so the question is: HOW??? Regards, Richard _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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> Ultimately, what I want is for #onClick: to use whatever value is selected
> by the form control, whether the control is a checkbox or radio button or > dropdown menu. This *has* to be doable, so the question is: HOW??? Please, read the comment in SUAjax of #triggerForm: and #triggerFormElement:. Also check out the example in SUFormTest. Lukas -- Lukas Renggli http://www.lukas-renggli.ch _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Richard Eng
I looked at the SUFormTest code. It took me into the guts of WARenderCanvas
and WARenderContext where I got totally lost. All this stuff about 'context' and 'nextKey' and so on is so convoluted. For anyone but a Seaside expert, this would be unfathomably difficult to use without clear documentation and simple examples. A few HowTo's at seaside.st would be very helpful for the rest of us... How To use #updater, for example (since #updater is a major aspect of Seaside programming). Thanks, Richard ---------------------- Lukas wrote: > Ultimately, what I want is for #onClick: to use whatever value is > selected > by the form control, whether the control is a checkbox or radio button or > dropdown menu. This *has* to be doable, so the question is: HOW??? Please, read the comment in SUAjax of #triggerForm: and #triggerFormElement:. Also check out the example in SUFormTest. _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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Hi Richard,
A similar usage of update: has been mentioned in Potsdam univ Seaside Tutorial http://www.swa.hpi.uni-potsdam.de/seaside/tutorial HTH, Rajeev On Sat, Mar 8, 2008 at 11:36 PM, Richard K Eng <[hidden email]> wrote: I looked at the SUFormTest code. It took me into the guts of WARenderCanvas -- Rajeev Lochan Co-founder, AR-CAD.com http://www.ar-cad.com +91 9243468076 (Bangalore) 080 65355873 _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Richard Eng
> I looked at the SUFormTest code. It took me into the guts of WARenderCanvas
> and WARenderContext where I got totally lost. All this stuff about 'context' > and 'nextKey' and so on is so convoluted. For anyone but a Seaside expert, > this would be unfathomably difficult to use without clear documentation and > simple examples. I guess, what you want to do has absolutely nothing to do with #nextKey. This is just used to create an unique id (as its comment says). > A few HowTo's at seaside.st would be very helpful for the rest of us... How > To use #updater, for example (since #updater is a major aspect of Seaside > programming). To trigger a callback of a form elment, you need to specify this form element with #triggerFormElement:. As the comment of this method says, this does not work for multi-select lists and checkboxes, as those two form elements internally depend on another hidden form element. So four your checkbox you need to trigger the whole form. Give it an (unique) id and use #triggerForm: with this id. Lukas -- Lukas Renggli http://www.lukas-renggli.ch _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Richard Eng
Hi!
I made a quick and dirty example!
HTH
Gerhard
| formId |
formId := html nextId. html form id: formId; with: [html checkbox value: false; callback: [:v | set := v]; onClick: (html evaluator triggerForm: formId; callback: [:script | script element id: 'text'; update: [:r | set ifTrue: [r text: 'My address']
ifFalse: [r text: '']] ]). html textArea id: 'text'; with: [html text: 'Empty']]. On Sat, Mar 8, 2008 at 4:38 PM, Richard K Eng <[hidden email]> wrote: I'm puzzled how to use #updater. I'm trying to use a checkbox to add text to _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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Now simplified with updater only!
| formId |
formId := html nextId. html form id: formId; with: [html checkbox value: false; callback: [:v | set := v]; onClick: (html updater id: 'text'; triggerForm: formId; callback: [:r | set ifTrue: [r text: 'My address'] ifFalse: [r text: '']]). html textArea id: 'text'; with: [html text: 'Empty']]. On Sat, Mar 8, 2008 at 7:34 PM, Gerhard Obermann <[hidden email]> wrote:
_______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Richard Eng
Thanks to Lukas and Gerhard! This is crystal clear now! It certainly wasn't
from looking at the SUFormTest example. Works like a charm. With this one post, the entire world of Ajax has opened up to me! Regards, Richard ---------------------- Gerhard wrote: Now simplified with updater only! | formId | formId := html nextId. html form id: formId; with: [html checkbox value: false; callback: [:v | set := v]; onClick: (html updater id: 'text'; triggerForm: formId; callback: [:r | set ifTrue: [r text: 'My address'] ifFalse: [r text: '']]). html textArea id: 'text'; with: [html text: 'Empty']]. _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Richard Eng
BTW, for anyone who's interested, I'm currently working on a Seaside-based
online shopping application. It was inspired by the Sushi Store example and if you look closely, I'll bet you can see what they have in common. To my knowledge, no other online shopping website works in the manner of my application: http://goodsexshopping.com It is still in alpha development, so there are rough edges and unfinished functionality. Enjoy. Regards, Richard _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
Re: Seaside updater
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In reply to this post by Richard Eng
That sounds NSFW... _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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On Sat, 8 Mar 2008 12:17:07 -0800
"Boris Popov" <[hidden email]> wrote: > That sounds NSFW... But hey, if Seaside is able to handle that kind of load, there's nothing to worry about :-D <insert suitable jokes about component-based approach here/> s. _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Richard Eng
Yes, indeed, I forgot about net etiquette. The project I'm working on (which
includes The Good Sex Network and Good Sex Shopping) is adult-related and may be verboten at most work sites. However, there is nothing explicit at these websites, nothing offensive, unless the mere mention of sex is itself offensive. We live in such an uptight, politically correct society that I suppose I shouldn't be surprised at the likelihood. My Seaside project is an example of what a total novice to Smalltalk and OOP can accomplish with the mere basics of Seaside. I've used nothing fancy, only what I've found in the tutorials. I'm sure the Seaside experts among you could achieve much more, but I'm trying to demonstrate what a total noob like myself can achieve if he isn't afraid to take the road less travelled. I should mention that this is a one-man project. I work alone(*). No one has helped me, except for those on the Seaside mailing list, and I thank you all. Richard (*) - I did all the design work, which included selecting CSS templates from http://openwebdesign.org - I chose public domain artwork - I chose to work exclusively with Open Source and/or free software (this includes Darwin streaming server for QuickTime) - I chose WordPress for non-Seaside stuff (such as articles and FAQ) - I've kept the cost of development to the bare minimum (being the Cheap Bastard that I am <grin>) ---------------- Boris wrote: That sounds NSFW... Cheers! _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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>>>>> "Richard" == Richard Eng <[hidden email]> writes:
Richard> I should mention that this is a one-man project. I work alone(*). No. I won't go there. No. :-) -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <[hidden email]> <URL:http://www.stonehenge.com/merlyn/> Perl/Unix/security consulting, Technical writing, Comedy, etc. etc. See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training! _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Richard Eng
Just out of curiosity. What was your background as programmer and what
were the ressources that helped you the most and what you would have love to find but did not? Stef On Mar 8, 2008, at 10:09 PM, Richard Eng wrote: > Yes, indeed, I forgot about net etiquette. The project I'm working > on (which > includes The Good Sex Network and Good Sex Shopping) is adult- > related and > may be verboten at most work sites. However, there is nothing > explicit at > these websites, nothing offensive, unless the mere mention of sex is > itself > offensive. We live in such an uptight, politically correct society > that I > suppose I shouldn't be surprised at the likelihood. > > My Seaside project is an example of what a total novice to Smalltalk > and OOP > can accomplish with the mere basics of Seaside. I've used nothing > fancy, > only what I've found in the tutorials. I'm sure the Seaside experts > among > you could achieve much more, but I'm trying to demonstrate what a > total noob > like myself can achieve if he isn't afraid to take the road less > travelled. > > I should mention that this is a one-man project. I work alone(*). No > one has > helped me, except for those on the Seaside mailing list, and I thank > you > all. > > Richard > > (*) > - I did all the design work, which included selecting CSS templates > from > http://openwebdesign.org > - I chose public domain artwork > - I chose to work exclusively with Open Source and/or free software > (this > includes Darwin streaming server for QuickTime) > - I chose WordPress for non-Seaside stuff (such as articles and FAQ) > - I've kept the cost of development to the bare minimum (being the > Cheap > Bastard that I am <grin>) > > ---------------- > Boris wrote: > > That sounds NSFW... > > Cheers! > > > _______________________________________________ > seaside mailing list > [hidden email] > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside > _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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In reply to this post by Richard Eng
I'm a semi-retired software engineer. From 1980-2000, I worked for a variety
of companies working in a variety of application domains (database apps, real-time control, communication software, and device drivers). My last job was at ATI Technologies (now AMD) as Project Team Leader of the Windows NT Driver Group. My very first programming language was Fortran, but most of my career has been in C. (I dabbled a little bit with C#.) When I started this project last June, I knew nothing, absolutely nothing, about web development. I had to bootstrap myself ten different ways, learning about Linux Server (without a GUI), Apache, DNS, SSL, CSS, HTML, and video streaming. My work was continually hampered by my aging (read: failing) memory. (Oh, to be 30, again!) The resources that helped me most included the few tutorials I could find on the Internet about Seaside/Squeak, CSS, and Linux, as well as many forum and blog postings about Apache, PostgreSQL, Darwin streaming server, etc. In fact, I relied very heavily on these forum postings *but*, and this is a big 'but', far too many of the postings were either obsolete, incomplete, misleading, or just plain wrong! I've lost count of the number of times I was supremely frustrated because of this. One of the BIGGEST headaches I faced was trying to figure out how to do load-balancing (whether it's with Apache or some other server). Also, I had a hard time with SSL (and Apache). Recently, I struggled enormously with DNS and virtual hosts. All in all, it has been a tremendous and positive learning experience. I am gratified by all the Seaside people who have contributed excellent blogs (you know who you are) and tutorials. What would I have loved to find out but did not? Nothing, really. I eventually got all my questions answered and issues resolved. However, it was not without enormous frustration and being led down dead-end trails. I guess I wish there was a single, well-organized repository of information that would help people get up to speed quickly and easily with regards to how to build a Seaside-based website. This would entail: - How to setup Apache proxy. (In general, how to host your Seaside app on a Linux server.) - How to secure your website with SSL. - How to scale your website with load-balancing. - How to send out emails from your Seaside app. - How to load-test and stress-test your website. (A vital issue for commercial Seaside apps.) And so on. Much of the information is scattered throughout the Internet and it is very, very time-consuming to track it all down. Richard ------------------ Stephane wrote: Just out of curiosity. What was your background as programmer and what were the ressources that helped you the most and what you would have love to find but did not? Stef _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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