Rails 3，嵌套資源，無路由匹配[PUT]

Question

我真的很生氣。 我一直在尋找答案並嘗試我發現的所有內容，包括有關stackoverflow的相關問題和答案，但仍無法使其正常工作。

我正在使用嵌套資源，我無法使表單工作。 我總是得到錯誤，例如沒有路線匹配[PUT]“/畫廊/ 1 /照片”

表格在這里：/ galleries / 1 / photos / 1 / edit

的routes.rb

resources :galleries do
  resources :photos
end
resources :galleries
resources :photos

photos_controller.rb

def new
  @gallery = Gallery.find(params[:gallery_id])
  @photo = @gallery.photos.build

  respond_to do |format|
    format.html
  end
 end

def edit
  @gallery = Gallery.find(params[:gallery_id])
  @photo = Photo.find(params[:id])
end

def create
  @gallery = Gallery.find(params[:gallery_id])
  @photo = @gallery.photos.build(params[:photo])

  respond_to do |format|
    if @photo.save
      format.html { redirect_to @photo, notice: 'Photo was successfully created.' }
    else
      format.html { render action: "new" }
    end
  end
end

def update
  @gallery = Gallery.find(params[:gallery_id])
  @photo = Photo.find(params[:id])

  respond_to do |format|
    if @photo.update_attributes(params[:photo])
      format.html { redirect_to @photo, notice: 'Photo was successfully updated.' }
      format.json { head :ok }
    else
      format.html { render action: "edit" }
      format.json { render json: @photo.errors, status: :unprocessable_entity }
    end
  end
end

_form.html.erb

<%= form_for([@gallery, @photo], :url => gallery_photos_path(params[:gallery_id]), :html => {:multipart => true}) do |f| %>
  <div class="field">
  <%= f.label :title %><br />
  <%= f.text_field :title %>
</div>
<div class="field">
  <%= f.file_field :image %>
</div>
<div class="actions">
  <%= f.submit %>
</div>
<% end %>

我也嘗試過form_for([@gallery, @photo], :html => {:multipart => true})和form_for(@photo, :url => gallery_photos_path(@gallery), :html => {:multipart => true})

UPDATE

這是耙路線的一部分。

gallery_photos GET    /galleries/:gallery_id/photos(.:format)          {:action=>"index", :controller=>"photos"}
    POST   /galleries/:gallery_id/photos(.:format)          {:action=>"create", :controller=>"photos"}
new_gallery_photo GET    /galleries/:gallery_id/photos/new(.:format)      {:action=>"new", :controller=>"photos"}
edit_gallery_photo GET    /galleries/:gallery_id/photos/:id/edit(.:format) {:action=>"edit", :controller=>"photos"}
gallery_photo GET    /galleries/:gallery_id/photos/:id(.:format)      {:action=>"show", :controller=>"photos"}
    PUT    /galleries/:gallery_id/photos/:id(.:format)      {:action=>"update", :controller=>"photos"}
    DELETE /galleries/:gallery_id/photos/:id(.:format)      {:action=>"destroy", :controller=>"photos"}

Answer 1

您無需指定URL，這對於更新來說是錯誤的。 嘗試

<%= form_for([@gallery, @photo], :html => {:multipart => true}) do |f| %>

Answer 2

回答我的問題。 我沒有工作的例子，但希望它有所幫助。

根據您的rake routes ，您沒有路線：

[PUT] "/galleries/1/photos"

如果我沒有弄錯，您的表單指向無效操作： gallery_photos_path將返回圖片庫中的照片索引，其中包含id :gallery_id 。 我認為，：表單的url參數應該是這樣的：

:url => gallery_photo_path(params[:gallery_id], params[:id])

或者您可以在不使用Rails助手的情況下指定它：

:url => "/galleries/#{params[:gallery_id]}/photos/#{params[:id]}"

此外，如果您嘗試創建嵌套資源，我認為您的路由文件中不需要這些行：

resources :galleries
resources :photos