[Seaside] Newbie: How to add different IAComponent's?
Sat, 25 May 2002 23:30:52 +0200
I'm quite new to SeaSide and I think it's great. But for hours, I've been
trying to create a small web-application, that is able to show different
pages, selectable by the user:
___________ __________ _______
/ *Options* \__/ Navigate \__/ About \_____________
| content of the page 'options' |
I created a subclass of IAComponent called PageControl:
IAComponent subclass: #PageControl
instanceVariableNames: 'pages currentPage '
pages := OrderedCollection new.
currentPage := nil
Because I like to use the PageControl-Component in different places, I like
to add the sub-pages at run-time:
ifNil: [currentPage := aPage].
pages add: aPage
I think up to here everything should work fine, but now my problems start:
To render the header and the content I wrote some simple messages that are
called from the html-message:
^ self header, self content
| output index |
output := String new.
index := 1.
do: [:page |
output := output , '<a href="@goTo: ' , index
asString , '">'.
output := output , page title , '</a></td>'.
index _ index + 1].
^ output , '<br>'
^ currentPage html
As you probably see immediately, that code doesn't work at all. But I don't
know why and how to fix it.
I've read the two tutorials, had a look at the seaside-archive and the
examples shipped with SeaSide, but all sources couldn't solve my problems.
I think that I have to add some bindings, but I don't understand the
documentation (my english isn't that well) and I have no idea what is wrong
with my code.
Thanks for your help in advance,