Re: redcloth and dynamic content

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I haven't looked into it much but I too am not very satisfied with 
amrita for templating.  I'd like something more like PHP's Smarty.  
Haven't had much time to work on ruby web apps lately but when I get 
back to my on-hold web app I will probably look into other options.

Carl

Dick Davies wrote:

>I've sat down to write a data-driven webapp. Nice steep
>learning curve for me (I'm on my last week here so thought
>I'd waste it productively).
>
>So far FastCGI and PostGreSQL (this is an excuse for me
>to finally spend time learning SQL in detail, trolls please stfu).
>
>Few questions at the bottom of this, but it'd help to explain
>how I got into this mess first...
>
>[ Can I also place a hearty plug for Subversion here - I've 
>changed designs three or four times over the weekend and
>renaming files/classes and nesting libs has been a dream 
>with it. Definitely a refactoring-friendly VCS..]
>
>The db connection is wrapped in a class, Cnps, which I start up
>outside the fcgi mainloop, and is the only thing that is SQL
>savvy. The mainloop just calls methods on that class to get data
>on demand.
>
>It all works great - thanks to Carl and Ara for their 
>rubygarden wiki discussions on fastcgi - but
>I'm coming to the stage where I have had enough of 
>
>out"EOO"
><html><body>
>#{cnps.champ} is winning with a score of #{cnps.score(cnps.champ)}
></body>
></html>
>EOO
>
>
>and want to use some kind of template thing.
>
>First go was erb. Works well enough, but pretty verbose for 
>the Wiki Generation :) So plan B was to use redcloth  and erb,
>to generate eruby from redcloth templates, store them in another
>class and eval them when the requests come in.
>
>
>Problem with *that* is that I need placeholders in the Textile
>for each thing Eruby can parse , so I end up with a lot of <% %>
>noise in the templates.
>
>(Doing it the other way round seemed hard to do, since  I want to
>actually evaluate the dynamic tags at request time, but still preload
>the templates).
>
>So, Plan C. Use the  ability of RedCloth to create id tags to hook up
>to Amrita.
>
>So now we have 
>
>request comes in,
>fcgi decides what to display, 
>asks a helper class to get the template,
>executes the template using Amrita
>and returns the output.
>
>the helper class is responsible for converting the
>requested template (textile, (blue|red)cloth, whatever)
>to Amrita-ready html.
>
>Problem here is that Amrita doesn't duck type at all, and
>it'd really like a Hash. I was hoping to have Cnps just quack
>like a Hash, but it isn't going to happen.  Arse.
>
>
>So a few questions:
>
>Is there a way to delay evaluation of tags?
>In a 'do the simplest thing' frame of mind, is there a way to
>have ruby "" strings evaluated *after* construction?
>
>Amrita seems a bit musty, has it got a successor? Does Kwartz
>help me any?
>
>[ This would be my personal preference ]
>Is there a facility to extend RedCloth with custom tags?
>I could avoid the whole 'do a template from redcloth, then
>evaluate template' step that way, and create some kind of unholy 
>crossbreed of erb/amrita with redcloth?
>
>Something like  '>instance.method<' , then these tags get 
>processed first and return *more* Textile, which finally 
>gets converted...  I'd need to do the evaluation during
>to_html(), but that's kind of neat.
>
>Obviously I don't expect anyone else to
>put up with that, but if I could add my own tag, that'd be
>great. I could see it having lots of uses for others too.
>
>
>Am I reinventing a wheel here?
>

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