Merb Crud Controller

The other day I decided to try a complete CRUD controller using the new provides format and Active Record. It supports XML, Javascript, YAML formats where appropriate and HTML across all actions. The built in error handling in Merb also helps to clean things up.

Well. Here it is, for better or worse. I really like it though ;)

class Posts < Application
  provides :xml, :js, :yaml
  
  def index
    @posts = Post.find(:all)
    render @posts
  end
  
  def show
    @post = Post.find(params[:id])
    render @post
  end
  
  def new
    only_provides :html
    @post = Post.new(params[:post])
    render
  end
  
  def create
    @post = Post.new(params[:post])
    if @post.save
      redirect url(:post, @post)
    else
      render :action => :new
    end
  end
  
  def edit
    only_provides :html
    @post = Post.find(params[:id])
    render
  end
  
  def update
    @post = Post.find(params[:id])
    if @post.update_attributes(params[:post])
      redirect url(:post, @post)
    else
      raise BadRequest
    end
  end
  
  def destroy
    @post = Post.find(params[:id])
    if @post.destroy
      redirect url(:posts)
    else
      raise BadRequest
    end
  end
end