Rails - Aug 2006 - Another generic CRUD controller

I''ve been using this template on most of my CRUD controllers.

class CommentsController < ApplicationController
  meantime_filter :set_scope
  before_filter :find_comment, :only => %w(show edit update destroy)

  def index
    @comments = Comment.find(:all)
  end

  def new
    @Comment = Comment.new
  end

  def create
    @comment = Comment.create!(params[:comment])
    redirect_to comment_url(@comment)
  rescue ActiveRecord::RecordInvalid => invaild
    @comment = invaild.record
    render :action => ''new''
  end

  def show
  end

  def edit
  end

  def update
    @comment.attributes = params[:comment]
    @comment.save!
    redirect_to comment_url
  rescue ActiveRecord::RecordInvalid
    render :action => ''edit''
  end

  def destroy
    @comment.destroy
    redirect_to comments_url
  end

  protected
    def find_comment
      set_scope { @comment = Comment.find(params[:id]) }
    end

    def set_scope
      scope = { :post_id => params[:post_id] }
      Comment.with_scope( :find => { :conditions => scope }, :create =>
scope ) { yield }
    end
end

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