Seaside28Changelog

Seaside 2.8 is released as of 28 October 2007.

The big picture

• rendering speed improvements mostly because of a new encoding architecture
• memory usage reduction due to less continuations and new backtracking system
• runs on two new platforms:
  • Gemstone/S
  • KernelImage
• comments, more and better tests, documentation
• tool modularization
• new style and homepage
• Dropped the old WAHtmlRenderer API
• Squeak 3.7 support dropped (needs SeasideSqueak37 compatibility package)
• improved response streaming (WATask and WABasicAthentication work)

The new backtracking system

Backtracking is no longer done by sending #registerObjectForBacktracking: or #registerForBacktracking but by implementing the #states selector. This allowed us to simplify and improve a lot of code. It’s also very similar to the existing #children. You can have a look the implementors to see examples.

In Detail

API

• improved and simplified WAAnchor (uses URL objects now)
• improved and simplified WAPopupAnchor
• made WAImageTag protocol compatible to WAAnchorTag
• added #optionGroup
• added WAComponent >> #chooseFrom: convenience method (mostly for tutorials)
• select tag supports disabled elements
• two new elements (ins and del)
• WAHtmlBuilder to conveniently render html from outside of #renderContentOn:

I18N

• set accept-charset of forms to the character set of the session
• bug with multipart forms fixed in WAKomEncoded
• included Andreas’ utf-8 fastpath into WAKomEncoded
• WAUrl has different encoding as text content or url attribute value
• fixed WideString bug in WAFile

Bugs Fixed

• fixed WABrowser bugs
• fixed bug in the profiler that showed a non-printable character -> this bug existed since the beginning of time
• lots of AJAX related fixes

Clean Ups

• removed WAModLisp, use fast_cgi instead -> we do not depend on KomServices anymore
• removed all references to ScriptingSystem, use Form >> #storeString instead
• removed WAChangePassword, WAEditDialog, WAEditDialog, WAGridDialog, WALoginDialog, WANoteDialog
• Sushi Store is now its own package atSeaside-Examples

General

• WARedirectHandler subclasses can be used to handle session expiry
• the error walkback displays a list of possible causes
• lots of small fixes especially related to i10n
• lots of small improvements
• lots of xhtml validation related fixes
• clean up, remove lots of old unused stuff
• better portability

Migrate from 2.7 to 2.8

Must

• Seaside 2.6 to 2.7
• stop your server (e.g. WAKom) and evaluate WADispatcher resetAll
• migrate to WARenderCanvas
• backtrack state by implementing #states (check all senders of #registerObjectForBacktracking: and #registerForBacktracking), WAStateHolders do not do any backtracking anymore
• move to new header api, modify #updateRoot:. #linkToStyle becomes #stylesheet #url, #linkToScript becomes #javascript #url:, check all implementors of #updateRoot:
• use WAAnchorTag >> #with: instead of WAAnchorTag >> #text:
• replace users of WAChangePassword, WAEditDialog, WAEmailConfirmation, WAGridDialog, WALoginDialog, WANoteDialog
• every component that implements #initialize must send this message also to super (use SLint)
• if you use Squeak 3.7 load SeasideSqueak37 after Seaside
• if you use Squeak do not load into an image that has an earlier version of Seaside already loaded
• For WAImageTag use the composed #document:mimeType:fileName: selector (or a short version of it) instead of a cascade of selector parts
• if you loaded an intermediate version of Seaside 2.8 Seaside2.8a1-lr.404 removes WACookieSession, you should go back to subclassing WASession
• migrate from WAScriptLibrary and WAStyleLibrary to WAFileLibrary (check class comment of WAFileLibrary)
• the "base path" configuration option has been replaced by "Server Path"

Should

• use #heading level:; with: instead of #heading:level:
• check for deprecated message sends
• remove the implementors of #rendererClass that return WAHtmlCanvas
• use WAValueHolder if you just need an object that wraps a value instead of ValueHolder or WAStateHolder
• WAUrl >> #scheme: expects a String and no longer a Symbol

Rewrite Rules

Boris Popov has some rewrite rules to ease migration Moving from 2.7 to 2.8