[Zope3-dev] Pagelet and LayoutTemplate recursion

Stephan Richter srichter at cosmos.phy.tufts.edu
Wed Sep 26 11:01:45 EDT 2007


On Wednesday 26 September 2007 10:19, Christian Zagrodnick wrote:
> there is a recursion problem with Pagelets and layout templates when
> you don't register a template for the pagelet.

Yep, nasty, isn't it?

> The problem is, that ILayoutTemplate is derived from IPageTemplate.
> This is why the pagelet tries to render its contents with the layout
> template.
>
> I'm not sure what to do about this.

Roger and I discussed this issue over the weekend and just have not had the 
time to work it out.

> a) Explicitly check that the template is *not* an ILayoutTemplate in
> BrowserPagelet.render

Good solution. :-)

> b) make <z3c:template> use another interface which is also derived from
> IPageTemplate and use the new interface in BrowserPagelet.render.

Also a good solution. :-)

I think both approaches are fine. Roger and I had decided on (b) when we 
discussed it.

Regards,
Stephan
-- 
Stephan Richter
CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student)
Web2k - Web Software Design, Development and Training


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