[Seaside] Seaside and Ajax
Yar Hwee Boon
hboon at motionobj.com
Sat Aug 20 20:04:36 CEST 2005
On 21-Aug-05, at AM 12:49, Steven Swerling wrote:
> Second -- that "request.open("GET", uriFunc());". How the heck does
> that work? "function (){blah}" is passed in as "uriFunc". Does putting
> the "()" after the function name as in "uriFunc()" cause the function
> to be executed? (BTW, other examples on the web show this
> "request.open()" function taking a string for the URI).
If you read it like Lisp, then it's probably going to be more
understandable :) You are right, uriFunc() causes the function to be
executed. Avi summed it up in his post:
"It provides the function liveUpdater(), which takes as its only
parameter a URI-generating function uriFunc. liveUpdater() returns a
new function, suitable for attaching, for example, to the onclick
handler of a link. This handler function does this:
• Generate a new URI with the provided uriFunc
• Make an HTTP GET request to that URI
• Extract from the response the first element that has an id
attribute
• Replace the contents of the element with the corresponding id in
the current document, with the contents of the element extracted from
the new response"
> Finally, is anyone using this script?
If you mean from Seaside, you do not have to use this script
explicitly. It is used behind the scenes in methods such as
#textInputWithCallback: callbackBlock liveCallback: liveBlock.
--
HweeBoon
http://motionobj.com/blog/
MotionObj
(65) 6764-9774
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