It's been a little while since I've coded in Ruby, but here's a way to use
alternative templating systems with Camping.
#!/usr/bin/env ruby
require 'rubygems'
require 'camping'
require 'erb'
Camping.goes :Alternative
module Alternative::Controllers
class Home < R '/'
def get
@name = "beppu"
render :home
end
end
end
module Alternative::Views
def layout
self << "top\n"
self << yield
self << "bottom\n"
end
def method_missing(sym, *args, &block)
template_path = "#{sym.to_s}.erb"
if File.readable? template_path
self << ERB.new(File.read(template_path)).result(binding)
else
# The view code must coexist with Markaby.
# I don't see an easy way around this,
# because the render method assumes Markaby is being used.
super
end
end
end
The key is to override *method_missing* in the Views module. In this
example, instead of going straight to Markaby, it'll first check the
filesystem to see if a matching template exists. If so, it'll run it
through the templating system of your choice.
The benefit of this approach is that the various conventions used by Camping
are still in effect.
- You can still call *render* :template from your controllers.
- If the template's name has a leading '_', it's still treated as a
partial template.
- Otherwise, the content will be wrapped with the *layout* method if it
exists.
- Last but not least, your view code is still in the Views module.
In this example, I used ERB, but you can generalize this solution to fit any
templating system.
--beppu
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