seaside November 2004

seaside@lists.squeakfoundation.org

35 participants
43 discussions

RE: [Seaside] How to do validation such as for money (with a curr encyclass) in WAEditDialog subclasses?
by Bany, Michel 02 Nov '04

02 Nov '04

> On Fri, 29 Oct 2004 21:44:52 +0800, Yar Hwee Boon > <hboon(a)motionobj.com> > wrote: > > > However, how do I validate input which is non-digit? The #amount: > > Just to clarify, I mean how do I valiate short of using Javascript. I think your should not update your domain objects directly. I would use the command pattern, i.e. the model of your Seaside component should be a command. You would collect all the command data using the callbacks of your component Then the callback attached to the OK button would send #execute to the command object. Assuming that #execute performs the validation, you would get an exception describing the error(s). On the next rendering, you would alter the display to using the error description(s). Did you have a look to Mewa ? It does validation using another technique where you have a meta-wrapper for every aspects of the domain object. But again the domain object is not updated directly. Hope this helps, Michel.

2 1

problems with images actions
by Leo De Marco 01 Nov '04

01 Nov '04

Hello! I'm currently doing a web application with Seaside. Looking at the tutorials I have no problems to doing my first version in a few days! I tell you some datails of what im doing, so ( maybe) you can help me... I have a map image (of some region of my country), and i want to put on other images (images of oil wells). In the model, I have instance variables with the coordinates of the wells (that represents exactly the coordinates in the map image). So, the hole idea is that when the user click in the well image, I can open the well editor. At this moment, I can open an image with another image on, but I can find how to put an action for the well image, rather than in the hole map... renderContentOn: html | map well | map := ImageReadWriter formFromFileNamed: 'Images\patagonia_map.jpg'. well := ImageReadWriter formFromFileNamed: 'Images\well.jpg'. well displayOn: map at: 48@562. html imageMapWithAction:[ :value | Transcript show: value printString; cr ] form: map. Any help would be apreciated.. Regards, Leo De Marco leo(a)smalltalking.net 2004-11-01

1 0

Lists and ownership
by Jim Menard 01 Nov '04

01 Nov '04

I have a list of things (an address book), and I'm writing a simple Seaside app to display the list and CRUD entries. I have a bunch of basic, related design questions. Any help will be greatly appreciated. There are a lot of questions here; answers like "go read XXX" would be just as helpful as direct answers. I have read the few Seaside tutorials and docs I've been able to find. Who should "own" the list of entries? Should I create the list as a class instance variable of the entry class, or as a global entry in Smalltalk? How should my WAComponents access the list: by holding a copy (won't modifications to the list will be lost?) or by asking for the class instance variable/Smalltalk entry every time they want to access the list? What should I register for backtracking: the list itself? Each of the list entries? I'm looking at WATableReport, but I'm a bit confused about how to hand it my list of entries. Do I need to create WAReportColumn objects for each instance variable of each entry? Are these even the right questions? :-) Thank you for your help. Jim -- Jim Menard, jimm(a)io.com, http://www.io.com/~jimm

3 3

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

seaside November 2004