[Catalyst] Re: questions on Reaction

[Daniel McBrearty]

to be specific, I'm now getting :

Caught exception in Engoi::Controller::Admin->end "Can't call method
"render" on an undefined value at
/home/daniel/work/engoi/trunk/Engoi/script/../lib/Reaction/UI/Window.pm
line 63."

which I guess is caused by the fact that I have not put those
templates ... somewhere ...


On 1/2/07, Daniel McBrearty <danielmcbrearty at gmail.com> wrote:
> gotcha. The only part I had to put in Root.pm was the
> __PACKAGE__->config( ... ), which is logical.
>
> I found a lot of templates under root/base ... including 'xhtml' which
> at some point calls
>
> [% INCLUDE header;
> window.render_viewport(self.inner); %]
>
> which I guess then runs down the various objects that were added with
> $self->push_viewport(ViewPort, 'blah')  in the controllers.
>
> These templates have lots of apparently widget-orientated stuff ... is
> this library code or app code used to generate the crud stuff? how do
> I set up where it lives in my app?
>
>
>
> On 1/2/07, Matt S Trout <dbix-class at trout.me.uk> wrote:
> >
> > On 2 Jan 2007, at 20:10, Daniel McBrearty wrote:
> >
> > > OK. It is a good idea to make sure everything in the view goes through
> > > the I18N code, for sure. I'd like to merge what we are doing there
> > > with the cat plugin, but tat can wait ...
> > >
> > > next questions, about the Root.pm of the example app ... :
> > >
> > > 1.
> > >
> > > use base 'Reaction::UI::RootController';
> > > use Reaction::Class;
> > > use aliased 'Reaction::UI::ViewPort';
> > >
> > > do these HAVE to be in Root.pm?
> > >
> > > I just want to use this stuff in my admin code at the moment ... say
> > > it all sits in under MyApp::Controller::Admin ... can I just put these
> > > there?
> >
> > They need to be in an appropriate namespace to supply begin and end
> > actions. If all your reaction controllers are under ::Admin:: then
> > that's fine - that's usually where we start when doing conversions
> > (or where we stop when writing hybrids :)
> >
> > > 2.
> > >
> > > __PACKAGE__->config(
> > >  view_name => 'XHTML',
> > >  window_title => 'Reaction Test App',
> > >  namespace => '',
> > > );
> > >
> > > sub base :Chained('/') :PathPart('') :CaptureArgs(0) {
> > >  my ($self, $c) = @_;
> > >  $self->push_viewport(ViewPort, layout => 'xhtml');
> > > }
> > >
> > > I'm just not getting this bit. WHy do I want your XHTML view (it
> > > happens that I use xhtml anyway ... ) but what's it all about?
> >
> > You need to be using a view that inherits from
> > Reaction::UI::Renderer::XHTML; it does a few bits and pieces above
> > and beyond the standard TT view that are required for everything to
> > work, and will likely soon to rather more above and beyond as layout
> > classes get added to help extract even more logic out of the templates.
> >
> > > 3. the root action is using a viewport, pushing the template name onto
> > > it ... what does a viewport actually do over, say, a standard TT
> > > template?
> >
> > A viewport is nothing like a template - a viewport object provides a
> > viewport onto a particularly model display or mutation and
> > encapsulates all the logic required for handling events from the user
> > and altering the data visible to the view/layout stuff appropriately.
> >
> > In this case the viewport doesn't actually provide any data in and of
> > itself - it's there as a placeholder for the xhtml document layout to
> > hang off. The ListView and ActionForm viewports are probably more
> > educational in terms of the point of such objects.
> >
> > --
> > Matt S Trout, Technical Director, Shadowcat Systems Ltd.
> > Offering custom development, consultancy and support contracts for
> > Catalyst,
> > DBIx::Class and BAST. Contact mst (at) shadowcatsystems.co.uk for
> > details.
> > + Help us build a better perl ORM: http://dbix-
> > class.shadowcatsystems.co.uk/ +
> >
> >
> >
> > _______________________________________________
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> >
>
>
> --
> Daniel McBrearty
> email : danielmcbrearty at gmail.com
> www.engoi.com : the multi - language vocab trainer
> BTW : 0873928131
>


-- 
Daniel McBrearty
email : danielmcbrearty at gmail.com
www.engoi.com : the multi - language vocab trainer
BTW : 0873928131