REST将我们的controller限制到7个actions(index/show/new/create/edit/update/desctroy)
这次我们就来看看怎样添加自定义的actions

class TasksController < ApplicationController
  def idnex...

  def show...

  def new...

  def create...

  def edit...

  def update...

  def destroy...

  def complete
    @task = Task.find(params[:id])
    @task.update_attribute :completed_at, Time.now
    flash[:notice] = "marked task as complete"
    redirect_to completed_tasks_path
  end

  def completed
    @tasks = Task.find(:all, :conditions => 'completed_at IS NOT NULL')
  end
end

我们创建了两个方法，我们需要修改routes.rb:

map.resources :tasks, :collection => { :completed => :get }, :member => { :complete => :put}

现在我们可以访问http://localhost:3000/tasks;completed了
我们来看看页面中怎样写该链接:

<%= link_to "Mark as complete", complete_task_path(task), :method => :put %>
<%= link_to "Completed Tasks", completed_tasks_path %>