I kind of got around this by putting in my Layout.html:
<t:if
test="${isMainSection}">
main
</t:if>
And in Layout.java:
public boolean getIsMainSection() {
return _parent.isMainSection();
}
It's not ideal - it'd be better to be able to ask the _parent
directly rather than going through Layout.java, but this works for
now, until I learn Tapestry well enough to fix it up.
Now I just need to figure out how to do the else...
R
On Oct 4, 2007, at 4:00 PM, Robert A. Decker wrote:
I'm getting an error:
"Could not find a coercion from type
com.pgp.licenseserver.pages.Main to type
com.pgp.licenseserver.pages._PGPLicenseServerPage. Available
coercions:..."
But my Main.java extends _PGPLicenseServerPage and so there
shouldn't be any coercion necessary.
And besides, why should it care what the type is? Can't it just
send it the message I'm trying to send and not care about the type?
I'm trying to add to the layout example component to give menu-item
links at the top of the page and if we're in a particular section
of the app have that link not be active, but the other links be
active. I do this by having the pages that belong in each section
implement an interface for that section. For example, my 'Main'
page has its own section:
public class Main extends _PGPLicenseServerPage implements
_MainSection {...}
And in my superclass:
public class _PGPLicenseServerPage {
public boolean isMainSection() {
return this instanceof _MainSection;
}
}
And so in my Layout.html I would like to do something like:
<t:if
test="parent.isMainSection">
main
</t:if>
<t:else>
<a
href="#">main</a>
</t:else>
(I don't think this is right - I haven't been able to find an
example of an if/else)
I've tried messing around with different ways of calling things but
I keep getting various exceptions... Any way to get this to work? I
do something like this all of the time in WebObjects and it's quite
easy.
R
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