ruby-on-rails – 如何在生产轨道中提供指纹css路径4

概述我正在使用imgkit拍摄我的网页快照.我跑： RAILS_ENV =生产包exec rake资产：预编译预编译我的资产. app / assets目录的所有文件都编译为public / assets application.css编译为application-7a23a105125768e41d9d24aee4553615.css. 我的控制器代码是： kit = IMGKit.new(rend 我正在使用imgkit拍摄我的网页快照.我跑：

RAILS_ENV =生产包exec rake资产：预编译预编译我的资产.

app / assets目录的所有文件都编译为public / assets
application.CSS编译为application-7a23a105125768e41d9d24aee4553615.CSS.

我的控制器代码是：

kit = imgKit.new(render_to_string(:partial => 'form',:height => 200,:transparent => true,:quality => 10,:layout => false,:locals => {:project => @project}))  #  t = kit.to_img(:png)   kit.stylesheets << "#{Rails.root.to_s}/public/assets/application.CSS"  #file = kit.to_file(Rails.root + "public/pngs/" + "screenshot.png")  file = kit.to_file(Rails.root + "public/assets/" + "screenshot.png")  #send_file("#{Rails.root.to_s}/public/pngs/screenshot.png",:filename => "screenshot.png",:type => "image/png",:disposition => 'attachment',:streaming=> 'true')

我不知道如何解决/public/assets/application.CSS未找到错误…

没有这样的文件或目录 – public / assets / application.CSS

我使用https://github.com/csquared/IMGKit/issues/36来获取CSS并在我的快照中工作

编辑

def update#@kit = imgKit.new(render_to_string,wIDth: 480,height: 800,:quality => 100)  respond_to do |format|   if @project.update(project_params)    kit = imgKit.new(render_to_string(:partial => 'form',:locals => {:project => @project}))  #  t = kit.to_img(:png)   kit.stylesheets << "self.class.helpers.asset_path('application.CSS')"    #file = kit.to_file(Rails.root + "public/pngs/" + "screenshot.png") file = kit.to_file(Rails.root + "public/assets/" + "screenshot.png") #send_file("#{Rails.root.to_s}/public/pngs/screenshot.png",:streaming=> 'true')    format.HTML { redirect_to root_path,notice: 'Flyer was successfully updated.' }    format.Json { render :show,status: :ok,locatioFlyern: @project }  else    format.HTML { render :edit }    format.Json { render Json: @project.errors,status: :unprocessable_entity }  end endend

解决方法 您可以使用Sprockets :: Rails :: Helper#asset_digest_path,找到 here.由于您在控制器中,因此您可以访问它

self.class.helpers.asset_digest_path('application.CSS')# => "application-7a23a105125768e41d9d24aee4553615.CSS"

同样,asset_path将生成application.CSS文件的路径

self.class.helpers.asset_path('application.CSS')# => "/assets/application-7a23a105125768e41d9d24aee4553615.CSS"

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