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所以我跑了一個普通的生成腳手架，並使用股票表格來處理上傳。在Rails3中用回形針編輯動作的問題
所有上傳都很好地工作，圖像完美附加。我得到的問題是，當我去「編輯」，並嘗試改變形象，這是我得到的錯誤：
Routing Error
No route matches "/uploads"
這裏是我的控制器的樣子。這個名字是 '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
的 'upload.rb' 模型文件看起來是這樣的：
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 %>
edit.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 %>
謝謝。
編輯：「耙路線」輸出的相關部分：
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"}