ruby-on-rails-3 - Rails 3 从另一个 Controller 渲染部分(错误:ActionView::MissingTemplate)

Question

我正在尝试在 application.html.erb 的标题中包含登录名(用户名/密码)。我收到此错误:

Missing partial /login with {:handlers=>[:rjs, :builder, :rhtml, :erb, :rxml], :locale=>[:en, :en], :formats=>[:html]} in view paths "/app/views"

当我在 application.html.erb 中进行此调用时会发生这种情况:

<%= render '/login' %>

'/login' 在我的 routes.rb 中定义为:

match '/login' => "sessions#new", :as => "login" 

更新:这是我的 session Controller :

class SessionsController < ApplicationController

  def create 
    if user = User.authenticate(params[:email], params[:password])
        session[:user_id] = user.id
        user.last_login = Time.now
        user.save
        redirect_to root_path, :notice => "login successful"
      else 
        flash.now[:alert] = "invalid login / password combination " # don't show pass + params[:password]
        #render :action => "new"
        redirect_to login_path, :notice => "wrong user pass"
      end
  end

  def destroy 
    reset_session
      redirect_to root_path, :notice => "successfully logged out"
  end

end

我在其他帖子中看到这可能是由于没有在 Controller 操作中定义变量，但由于这是一个 session ，并且它在 application.html.erb (application_controller.rb) 中，我不确定如何去做这个。有人知道怎么做吗？谢谢!

Answer 1

<%= render "sessions/login", :@user => User.new %>
将呈现 session View 的登录部分，即 View / session 中的“_login.html.erb”并实例化 @user给新用户，以便它可以在部分中直接引用为:

form_for @user, :url => sessions_path do |f| 
  f.text_field :email