The most unique feature of Seaside is its approach to session management: Seaside models an entire user session as a continuous piece of code, with natural, linear control flow. Pages can call and return to each other like subroutines. Complex sequences of forms can be managed from a single method. Objects are passed by reference rather than marshalled into URLs or hidden fields. Seaside fully supports the backtracking and parallelism inherent to the web browser.
So unlike in the Java servlet model Seaside does not need a separate handler for each page or request.
Other features
a callback-based event model
a "transaction" system for auto-expiring pages
programmer-friendly HTML generation
a system of reusable and embeddable UI components
web-based development tools. If an error occurs you may fix it by using the web browser and resume the execution.
Seaside-REST package included since version 3.1
Status
The Seaside project has a mirror on GitHub which is tested by TravisCI. According to that, all tests are passing in a Squeak-5.1 image:
https://travis-ci.org/SeasideSt/Seaside
The information below is as of 2009 and may be outdated.
Please note: previous versions of Seaside included a sample application, the Sushi Store. This application has not been updated and is no longer included with Seaside 2.8 - it is still available at http://www.squeaksource.com/SeasideExamples.html but includes many deprecated techniques, and should not be relied on.
Other resources
Have also a look at the examples and register to the mailing list.
When you install Seaside you are asked for an administrator user acount name and password.
Use
http://localhost:9090/seaside/config
to access an application which lists the preinstalled applications and allows you to add your own.
