Paul O'Leary wrote:
> .... long live push. :)
>
>> No more push. I don't even want that to be a word in our vocabulary any
>> longer. :-)
>
>
> Parts of this push v. pull discussion are troubling to me. As I understand,
> the 'push' under debate is that Turbine populates a context object with
> dynamic info that is then passed into the template engine - the 'push' - for
> use by the template designer. This does have limitations, the main one
> seemingly being that since the context is populated with java code you have
> to modify java code to change what's available in the template.
>
> Let me say now, tho, that I consider this to be one of the best features of
> Turbine - and there are a lot of very good features :). The point of a
> template engine like Velocity is to enforce the seperation of display and
> logic in an app. The context mechanism enforces this at the runtime level
> as well. The only info available to the template for a particular screen is
> what's relevant to that screen (more or less.) But more importantly the
> objects that the template is accessing are simple, data-only (to the best of
> my knowledge) and do not have to go back into the system programatically to
> get an info.
>
> I point this out because some of the 'pull' suggestions that seem to be
> under consideration suggest putting much more complicated and general
> objects in the context for access by the template engine. I think this is
> the wrong way to go, especially if what this means is that there are APIs
> accessible in the template that can actually go back into the server, query
> the database, change state, etc. This would seem to break the seperation of
> logic and display that the template engine is there to enforce.
>
> There are other ways to address the limiations of the 'push' mechanism - see
> my previous post.
>
> My 2 cents,
> PaulO.
>
just +1
i think "pull" is where it all started and it became clear how nasty
that was. and now going back to it is kinda sad. There are already nice
things like PHP or JSP if you need 'pull' waiting for you already.
fedor.
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