所以我运行了一个常规的生成脚手架并使用库存表单来处理上传。
所有上传都运行良好,并且图像附加得非常完美。我遇到的问题是当我转到“编辑”并尝试更改图像时,这是我收到的错误:
Routing Error
No route matches "/uploads"
这是我的 Controller 的样子。名称是“uploads_controller.rb”
class UploadsController < ApplicationController
# GET /uploads
# GET /uploads.xml
def index
@uploads = Upload.all
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => @uploads }
end
end
# GET /uploads/1
# GET /uploads/1.xml
def show
@upload = Upload.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => @upload }
end
end
# GET /uploads/new
# GET /uploads/new.xml
def new
@upload = Upload.new
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @upload }
end
end
# GET /uploads/1/edit
def edit
@upload = Upload.find(params[:id])
end
# POST /uploads
# POST /uploads.xml
def create
@upload = Upload.new(params[:upload])
respond_to do |format|
if @upload.save
format.html { redirect_to(@upload, :notice => 'Upload was successfully created.') }
format.xml { render :xml => @upload, :status => :created, :location => @upload }
else
format.html { render :action => "new" }
format.xml { render :xml => @upload.errors, :status => :unprocessable_entity }
end
end
end
# PUT /uploads/1
# PUT /uploads/1.xml
def update
@upload = Upload.find(params[:id])
respond_to do |format|
if @upload.update_attributes(params[:upload])
format.html { redirect_to(@upload, :notice => 'Upload was successfully updated.') }
format.xml { head :ok }
else
format.html { render :action => "edit" }
format.xml { render :xml => @upload.errors, :status => :unprocessable_entity }
end
end
end
# DELETE /uploads/1
# DELETE /uploads/1.xml
def destroy
@upload = Upload.find(params[:id])
@upload.destroy
respond_to do |format|
format.html { redirect_to(uploads_url) }
format.xml { head :ok }
end
end
end
“upload.rb”模型文件如下所示:
class Upload < ActiveRecord::Base
has_attached_file :image
end
show.html.erb
<p id="notice"><%= notice %></p>
<p>
<b>Name:</b>
<%= @upload.name %>
</p>
<p>
<b>Description:</b>
<%= @upload.description %>
</p>
<p>
<b>Your Image:</b>
<%= image_tag @upload.image.url %>
</p>
<%= link_to 'Edit', edit_upload_path(@upload) %> |
<%= link_to 'Back', uploads_path %>
编辑.html.erb
<h1>Editing upload</h1>
<%= render 'form' %>
<%= link_to 'Show', @upload %> |
<%= link_to 'Back', uploads_path %>
_form.html.erb
<%= form_for (@upload), :url => uploads_path, :html => { :multipart => true } do |f| %>
<% if @upload.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@upload.errors.count, "error") %> prohibited this upload from being saved:</h2>
<ul>
<% @upload.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :description %><br />
<%= f.text_field :description %>
</div>
<div class="field">
<%= f.file_field :image %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
谢谢。
编辑:“rake paths”输出的相关部分:
uploads GET /uploads(.:format) {:action=>"index", :controller=>"uploads"}
uploads POST /uploads(.:format) {:action=>"create", :controller=>"uploads"}
new_upload GET /uploads/new(.:format) {:action=>"new", :controller=>"uploads"}
edit_upload GET /uploads/:id/edit(.:format) {:action=>"edit", :controller=>"uploads"}
upload GET /uploads/:id(.:format) {:action=>"show", :controller=>"uploads"}
upload PUT /uploads/:id(.:format) {:action=>"update", :controller=>"uploads"}
upload DELETE /uploads/:id(.:format) {:action=>"destroy", :controller=>"uploads"}
最佳答案
看来错误出在我的 _form 部分中。
我定义了一个 :url 属性,但我不应该这样做。
Paperclip 需要更新其安装说明以反射(reflect) Rails 3 的更改。
irc.freenode.net 上#RubyOnRails 中的出色人员帮助我解决了这个问题。
关于ruby-on-rails-3 - Rails3 中回形针编辑操作的问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4162053/