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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 |
Parameters are stored in the params hash:
/world/hello/1?foo=bar id = params[:id] # 1 foo = params[:foo] # bar |
Instance variables defined in the the controllers methods are available to the corresponding view templates:
def show @person = Person.find( params[:id]) end |
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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