我正在使用
PDFKit(使用
wkhtmltopdf)来尝试在Rails 3应用程序中呈现为pdf格式的视图.
在我的控制器显示操作中,PDFKit使用Errno :: EPIPE(Broken pipe)指向send_data(kit.to_pdf,：filename =>“generated.pdf”,：type =>’application / pdf)
# Controller
def show
respond_to do |format|
format.html { render }
format.pdf do
html = render_to_string(:layout => false,:action => "show.html.haml")
kit = PDFKit.new(html)
send_data(kit.to_pdf,:filename => "invoice.pdf",:type => 'application/pdf')
return # to avoid double render call
end
end
end
# Gemfile
...
gem 'pdfkit'
gem 'wkhtmltopdf'
...
我知道wkhtmltopdf不是这个错误的根源,因为Rails.root中的wkhtmltopdf public / 404.html tmp / 404.pdf可以按预期工作.
在使用中间件失败后,我正在使用example from jonathanspies.com.
# config/application.rb require 'pdfkit' config.middleware.use PDFKit::Middleware
尝试在一个新的Rails 3应用程序,我得到以下错误：
command Failed: "~/.rvm/gems/ree-1.8.7-2011.01@blog/bin/wkhtmltopdf" "--page-size" "Letter" "--margin-right" "0.75in" "--margin-top" "0.75in" "--margin-bottom" "0.75in" "--encoding" "UTF-8" "--margin-left" "0.75in" "--quiet" "-" "-"
手动运行命令和使用情况屏幕显示,查看–quiet选项很容易看到它应该是–quit
将/lib/pdfkit/pdfkit.rb:35更改为以下内容,一切正常工作(中间件也可以).
args << '--quit'
所以,我再次解决了我的问题,在写这个问题的行为得到帮助(总是支付包括细节).我提交了一个pull request,它纠正了拼写错误(总是一个愚蠢的错误,被忽视).希望没有人会介意我.
解决方法
关于改变安静的参数退出.
此更改仅在您使用wkhtmltopdf gem使用旧版本的wkhtmltopdf二进制文件时有效.
用wkhtmltopdf宝石
10:32:15 wkhtml > wkhtmltopdf --version wkhtmltopdf 0.8.3 using wkhtmltopdf patched qt Copyright (C) 2008,2009 Jakob Truelsen,License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY,to the extent permitted by law. Written by Jakob Truelsen Patches by Mário Silva and Emmanuel Bouthenot 10:32:16 wkhtml > wkhtmltopdf --help | grep quit -q,--quit Be less verbose. 10:32:16 wkhtml > wkhtmltopdf --help | grep quite 10:32:19 wkhtml >
用最新的二进制文件我已经安装
10:33:40 tmp > wkhtmltopdf --version Name: wkhtmltopdf 0.9.9 License: Copyright (C) 2008,2009 Wkhtmltopdf Authors. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY,to the extent permitted by law. Authors: Written by Jakob Truelsen. Patches by Mário Silva,Benoit Garret and Emmanuel Bouthenot. 10:33:50 tmp > wkhtmltopdf --help | grep quit 10:34:02 tmp > wkhtmltopdf --help | grep quiet -q,--quiet Be less verbose 10:34:07 tmp >
拼写错误存在于wkhtmltopdf gem附带的旧二进制文件中.我会建议你的猴子补丁pdfkit与初始化或基于如果你包括wkhtmltopdf宝石的东西.
我也会接受一个引用请求,使得pdfkit知道它正在运行的wkthtmltopdf的版本,并有条件地切换该参数.