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Ruby on Rails - Controller methods
Each public method in a controller is callable by the (standard) URL scheme /controller/action
class WorldController < ApplicationController
def hello
render :text => 'Hello world'
end
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Parameters are stored in the params hash:
/world/hello/1?foo=bar
id = params[:id] # 1
foo = params[:foo] # bar
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Instance variables defined in the the controllers methods are available to the corresponding view templates:
def show
@person = Person.find( params[:id])
end
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Distinguish the type of response accepted:
def index
@posts = Post.find :all
respond_to do |type|
type.html # using defaults, which will render weblog/index.rhtml
type.xml { render :action => "index.rxml" }
type.js { render :action => "index.rjs" }
end
end
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