Wicked_pdf在开发中工作得很好,但没有在生产中

Pez*_*lio 2 ruby pdf-generation ruby-on-rails wicked-pdf

我一直在使用wicked_pdf在Rails中生成一些PDF,并且它在我的开发环境中工作正常,但是当我尝试在我的生产环境中生成一个错误时,我得到500错误(但我的日志中没有特定错误).我注意到的第一件事是wkhtmltopdf二进制文件位于我的生产盒上的不同位置,所以我将以下内容添加到我的wicked_pdf.rb初始化程序中:

if Rails.env == "production"
    WickedPdf.config = {
        :exe_path => '/usr/bin/wkhtmltopdf'
    }
end
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这是我在控制器中调用它的方式:

  def certificate
    @inspection = Inspection.find(params[:id])
    @council = Council.find(@inspection.councilid)  
    respond_to do |format|
        format.pdf do
            render :pdf => @inspection.slug,
                   :show_as_html => params[:debug].present?,
                   :margin => {:top            => 0,
                               :bottom         => 0,
                               :left           => 0,
                               :right          => 0}
        end
    end
  end
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这是我的观点的内容:

# certificate.pdf.erb

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <style type="text/css">
        body {
            margin: 0;
            padding: 0;
            font-family: "Lucida Grande", "Lucida Sans Unicode", Helvetica, Arial, sans-serif;
        }

        img#bg {
            width: 800px;
            height: 1130px;
            position: absolute;
        }

        #date p, #council p {
            line-height: 17px;
            font-size: 12px;
        }

        #council {
            position: absolute;
            top: 650px;
            left: 445px;        
        }

        #logo {
            position: absolute;
            top: 965px;
            left: 98px;
        }

        #logo img {
            height: 65px;
        }

        #address {
            position: absolute;
            top: 425px;
            left: 300px;        
        }

        #address p {
            font-size: 22px;
            line-height: 27px;
        }

        #date {
            position: absolute;
            top: 650px;
            left: 98px;
        }

    </style>
  </head>
  <body>
      <%= wicked_pdf_image_tag "certificate#{@inspection.rating}.jpg", :id => "bg" %>

      <div id="address">
      <p><%= @inspection.name %><br />
      <%= @inspection.address("<br />").html_safe %>      </p>
      </div>

      <div id="date">
      <p><%= @inspection.date.strftime("%B %d %Y") %></p>
      </div>

      <div id="council">
      <p><%= @council.address.html_safe %><br /><br />
      <strong>Tel: </strong><%= @council.tel %></p>
      </div>

      <div id="logo">
      <%= wicked_pdf_image_tag "certificates/#{@council.logo}.png" %>
      </div>

  </body>
</html>
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当我添加debug=true到查询字符串时,它似乎生成OK(并且wicked_pdf_image_tag帮助程序似乎生成了正确的位置,这似乎是Rails 3.1中的陷阱).有任何想法吗?我是Ruby/Rails的新手,所以请保持温和!

The*_*hop 7

如果让Bundler担心将依赖关系源化为wkthmltopdf,那么这样做要容易得多.你可以通过安装这个来做到这一点:

gem "wkhtmltopdf-binary"
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然后运行bundle install.之后,您应该能够删除自定义exe_path规范,它应该可以正常工作.如果这不起作用,请告诉我.