ethan at endpoint
Apr 17, 2008, 9:30 PM
Post #8 of 8
(287 views)
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Paul Jordan wrote:
>> users-bounces[at]icdevgroup.org] On Behalf Of Brian J. Miller
>> Bill Carr wrote:
>>
>>> Hi,
>>>
>>> I don't know what or how to call this.
>>>
>>> I would like to do something similar to the [bounce] tag without
>>> issuing a redirect to the client. I would like to just say, "Hey
>>> Interchange start over with this other page instead and give that
>>>
>> over
>>
>>> to the client." Is there a way to do that? I'm trying to make search
>>> engine friendly URLs.
>>>
>>> Is there a way in interchange to have a URL like /product/yellow-
>>>
>> tail-
>>
>>> shiraz and then have a page called 'product' that knows about
>>>
>> 'yellow-
>>
>>> tail-shiraz' and can do what it needs to do?
>>>
>>>
>>> Bill Carr
>>> bill[at]bottlenose-wine.com
>>>
>> Sounds like an Action Map to me.
>>
>> http://www.icdevgroup.org/xmldocs/confs/ActionMap.html
>>
>> --
>> Brian J. Miller
>>
>
>
> hmmm, I'd still be interested to know what someone from End Point would
> say....
>
> 8-)
>
> Paul
>
I'm going to go out on a limb and say "actionmap".
It should be mentioned that if you use a global (Interchange-level)
actionmap rather than a catalog level one (or a global sub registered as
a catalog-level actionmap), you can tell the dispatch routine to
actually redo the actionmap phase. This can be handy. It can also be
dangerous and lead to infinite loops if you're not careful. Anyway, to
engage in this delightfulness, do the following in your actionmap code
if rerunning is desirable:
$Vend::FinalPath = 'new/catalog-relative/path/to/parse';
$Vend::RedoAction = 1;
This isn't typically useful, unless you use actionmaps all over the
place (which I have, encourage, and rigorously applaud).
Actionmaps are a marvelous way of achieving MVC-style separation of
concerns: put your business logic in 'em, and then have your template
pages and the ITL therein be strictly about presentation concerns.
Take it a step farther, and put all your actionmap routines in a custom
Perl module. Now you can have them call each other and have your
business logic be internally reusable, clean, etc. Depending on the
design of the routines, you could presumably validate some subset of
them with unit tests. Unit tests!
They are also nice for SEO.
They are also nice for RESTful design, since they let you craft URLs
where parameters are expressed as part of the URI path (instead of
GET/POST variables with an opaque path like "process" -- which is also
an actionmap).
If you get into using actionmaps, it is helpful to implement
routines/usertags that generate actionmap URL paths for you based on the
parameters you want passed to the actionmap. If you don't do this, then
you end up scattering the logic for building such URLs all over your
app. Which is !$cool.
By the way, people at End Point like actionmaps. In case you were
wondering.
Thanks.
- Ethan
--
Ethan Rowe
End Point Corporation
ethan[at]endpoint.com
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