[silva-dev] Main Layout, Content Provider and Viewlet
j.bowlas at ucl.ac.uk
Tue Jun 7 13:38:46 CEST 2011
Many thanks Sylvain, I thought it would be something like this. I'll
let you know how I get on.
On 7 June 2011 12:31, Sylvain Viollon <sylvain at infrae.com> wrote:
> On Tue, 7 Jun 2011 10:19:58 +0100
> Jonathan Bowlas <j.bowlas at ucl.ac.uk> wrote:
>> Hi Silva Devs
>> Quick question, when developing a new visual theme is it possible to
>> call a function defined within a Main Layout object (i.e. the layout
>> object in the Porto layout called mainlayout) from another
>> ContentProvider or Viewlet page template? If so how would I do this?
> If you define a method on your Main layout, you can access it from
> any view, content provider, viewlet or viewlet manager using the
> layout attribute:
> def update(self):
> Or in a template:
> layout.method() (with Chameleon)
> layout/method (with regular templates)
> Your content provider, view, viewlet must have been created by
> inheriting from one of the base class of silva.core.view.
> If you add specific methods to your main layout that are used in your
> layout, don't forget to define them as well on the main layout used
> for errors, like for example :
>> The reason I ask is that we have a NonPublishable SimpleItem
>> (UCLAttributes object) that we use to allow Silva Editors to configure
>> various options within the layout, and rather than having to write a
>> function to call this from every Viewlet and ContentProvider everytime
>> I need a parameter it would be prefereable to call it once globally.
> Yes, that would be preferable, and you can use the layout object for
> that, it is partially done for that.
> I would even recommend that if you have to compute a setting more
> than two time, you should set it on the layout object, in the update
> method (don't forget to call the update method on the parent class).
> Sylvain Viollon -- Infrae
> t +31 10 243 7051 -- http://infrae.com
> Hoevestraat 10 3033GC Rotterdam -- The Netherlands
Web Support Officer
University College London
Email: j.bowlas at ucl.ac.uk
More information about the silva-dev