我正在为一个滑板网站的客户工作多站点。到目前为止一切都很好,但我开始陷入整个局部的困境。我有一个网站和网站has_many:专辑(专辑也属于网站)但是当我尝试从网站主页上的网站渲染专辑时,我得到未定义的方法`model_name'为NilClass:Class ?< / p>
我正在尝试在网站/显示页面上呈现相册/ _album.html.erb,以在网站的主页上显示网站最新的相册。
相册控制器
class AlbumsController < ApplicationController
def index
@albums = Album.all
end
def show
@album = Album.find(params[:id])
end
def new
@album = Album.new
end
def edit
@album = Album.find(params[:id])
end
def create
@album = current_site.albums.build(params[:album])
if @album.save
redirect_to albums_path, :notice => 'Album was successfully created.'
end
end
def update
@album = Album.find(params[:id])
if @album.update_attributes(params[:album])
redirect_to album_path(@album), :notice => 'Album was successfully updated.'
end
end
def destroy
@album = Album.find(params[:id])
@album.destroy
end
end
网站控制器
class SitesController < ApplicationController
def index
@sites = Site.all
end
def show
@site = Site.find_by_subdomain!(request.subdomain)
end
def new
@site = Site.new
end
def edit
@site = Site.find(params[:id])
end
def create
@site = Site.new(params[:site])
if @site.save
redirect_to @site, :notice => 'Signed up!'
end
end
def update
@site = Site.find(params[:id])
if @site.update_attributes(params[:site])
redirect_to @site, :notice => 'Site was successfully updated.'
end
end
def destroy
@site = Site.find(params[:id])
@site.destroy
end
end
网站Show.html
<p id="notice"><%= notice %></p>
<p>
<b>First name:</b>
<%= @site.first_name %>
</p>
<p>
<b>Last name:</b>
<%= @site.last_name %>
</p>
<p>
<b>Subdomain:</b>
<%= @site.subdomain %>
</p>
<%= render :partial => 'albums/album'%>
<%= link_to 'Edit', edit_site_path(@site) %> |
<%= link_to 'Back', sites_path %>
相册/ _album.html.erb
<%= div_for @album do %>
<h2><%= @album.title %></h2>
<%= image_tag @album.photo.url(:small) %>
<% end %>
我在相册控制器中遗漏了什么?
答案 0 :(得分:1)
在show.html中,您需要将相册集合传递给渲染方法
<%= render :partial => 'albums/album', :collection => @site.albums %>
在_album.html.erb partial中,您需要将相册属性作为本地属性引用,如此
<%= div_for album do %>
<h2><%= album.title %></h2>
...
您可以在此处详细了解部分内容3.4.5 Rendering Collections