蜡笔的天真涂鸦

在别处看到的，感觉挺有趣，转一下

rails todo
cd todo
rake db:create:all(在这之前要把数据库的用户名和密码输入正确)
ruby script/generate scaffold Todo title:string body:text done:boolean due:datetime
rake db:migrate

开始服务
ruby script/server

打开浏览器输入并访问http://localhost:3000/todos

这是生成的todos_controller.rb

class TodosController < ApplicationController
  # GET /todos
  # GET /todos.xml
  def index
    @todos = Todo.find(:all)

    respond_to do |format|
      format.html # index.html.erb
      format.xml  { render :xml => @todos }
    end
  end

  # GET /todos/1
  # GET /todos/1.xml
  def show
    @todo = Todo.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @todo }
    end
  end

  # GET /todos/new
  # GET /todos/new.xml
  def new
    @todo = Todo.new

    respond_to do |format|
      format.html # new.html.erb
      format.xml  { render :xml => @todo }
    end
  end

  # GET /todos/1/edit
  def edit
    @todo = Todo.find(params[:id])
  end

  # POST /todos
  # POST /todos.xml
  def create
    @todo = Todo.new(params[:todo])

    respond_to do |format|
      if @todo.save
        flash[:notice] = 'Todo was successfully created.'
        format.html { redirect_to(@todo) }
        format.xml  { render :xml => @todo, :status => :created, :location => @todo }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @todo.errors, :status => :unprocessable_entity }
      end
    end
  end

  # PUT /todos/1
  # PUT /todos/1.xml
  def update
    @todo = Todo.find(params[:id])

    respond_to do |format|
      if @todo.update_attributes(params[:todo])
        flash[:notice] = 'Todo was successfully updated.'
        format.html { redirect_to(@todo) }
        format.xml  { head :ok }
      else
        format.html { render :action => "edit" }
        format.xml  { render :xml => @todo.errors, :status => :unprocessable_entity }
      end
    end
  end

  # DELETE /todos/1
  # DELETE /todos/1.xml
  def destroy
    @todo = Todo.find(params[:id])
    @todo.destroy

    respond_to do |format|
      format.html { redirect_to(todos_url) }
      format.xml  { head :ok }
    end
  end
end

自动生成的001_create_todos.rb

class CreateTodos < ActiveRecord::Migration
  def self.up
    create_table :todos do |t|
      t.string :title
      t.text :body
      t.boolean :done
      t.datetime :due

      t.timestamps
    end
  end

  def self.down
    drop_table :todos
  end
end