在专用存储文件夹的rails 3.1中显示带有载波的图像 [英] Showing images with carrierwave in rails 3.1 in a private store folder

问题描述

我有一个Rails 3.1应用程序，正在添加载波来存储图像。但我想将这些图像存储在公共文件夹之外，因为只有在用户加载到应用程序中时，才可以访问它们。因此，我使用初始化文件更改了carrerwave中的store_dir：

I have a rails 3.1 app and I am adding carrierwave to store images. But I want to store those images outside the public folde,r because they should only be accessible when users are loaded in the app. So I changed the store_dir in carrerwave with the initializer file:

CarrierWave.configure do |config|
  config.root = Rails.root
end

然后我的载波上传器转到像这样：

And my carrierwave uploader goes like this:

class ImageUploader < CarrierWave::Uploader::Base
...
def store_dir
  "imagenes_expedientes/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end

图像存储正确，如果使用公用文件夹，一切正常。但是，当尝试将内容移动到专用文件夹时，不显示图像，并且当我尝试在新窗口中打开它们时，出现以下错误：

Images are stored correctly and if I use the public folder everything works fine. However when trying to move things to the private folder, images are not displayed and when I try to open them in a new window I get the following error:

Routing Error

No route matches [GET] "/imagenes_expedientes/volunteer/avatar/15/avatar.jpg"

我试图通过控制器使用send_file传递文件，但我没有加载页面，而只是下载了图像。

I was trying to deliver the files using send_file through the controller, but instead of loading the page I only get the image downloaded.

  def show
    send_file "#{Rails.root}/imagenes_expedientes/avatar.jpg", :type=>"application/jpg", :x_sendfile=>true
  end

最后，视图中将这样显示图像：

Finally Images are displayed like this in the views:

<%= image_tag(@volunteer.avatar_url, :alt => "Avatar", :class => "avatar round") if @volunteer.avatar? %>

这可能很容易解决，但是由于我是Rails的新手，所以我不知道该怎么做。我应该设定路线吗？还是可以使用send_file方法显示图像？

This may probably be solved rather easy, but since I am somehow new to Rails, I don´t know what to do it. Should I set a route? Or is there anyway to display the images using the send_file method?

谢谢！

我设法使用x-sendfile显示图像，并按照 clyfe 。我在控制器中做了一个新操作：

I managed to display images using x-sendfile and putting :disposition => 'inline' as suggested by clyfe. I made a new action in my controller:

  def image
    @volunteer = Volunteer.find(params[:id])
    send_file "#{Rails.root}/imagenes_expedientes/#{@volunteer.avatar_url}",:disposition => 'inline', :type=>"application/jpg", :x_sendfile=>true
  end

添加到路线中：

  resources :volunteers do
    member do
      get 'image'
    end 
  end

并显示在视图中：

<%= image_tag(image_volunteer_path(@volunteer), :alt => "Avatar", :class => "avatar round") if @volunteer.avatar? %>

希望对其他人有帮助！

推荐答案

：disposition => 'inline'将使您的图像显示在浏览器中，而不是弹出下载对话框。

:disposition => 'inline' will make your images display in the browser instead of popping up the download dialog.

def show
  send_file "#{Rails.root}/imagenes_expedientes/avatar.jpg", :disposition => 'inline', :type=>"application/jpg", :x_sendfile=>true
end

取决于图像的大小和用户数量，您可能希望将此操作移至金属应用程序，或者将其移至另一个应用程序，以免阻塞服务器。

Depending on the images sizes and the number of users you might want to move this action to a metal app, or a separate so as to not block the server.

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