pdfkit 不设置 pdf 样式

发布于 2024-12-13 23:17:54 字数 940 浏览 7 评论 0原文

我有一个 Rails 3.1 应用程序，它使用 pdfkit 创建 pdf 文档，除了生成的 pdf 没有任何样式之外，一切都按指定工作。我假设 wkhtmltopdf 无法访问我的样式表，并且这不是一个更大的问题。有人知道如何允许访问这些样式表吗？我基本上遵循了关于这个主题的railscast #220，但是我必须创建一个新的初始化程序才能让pdfkit与rails 3.1一起工作。

这是我必须用来让 pdfkit 与 Rails 3.1 一起使用的初始化程序

ActionController::Base.asset_host = Proc.new { |source, request|
  if request.env["REQUEST_PATH"].include? ".pdf"
    "file://#{Rails.root.join('public')}"
  else
    "#{request.protocol}#{request.host_with_port}"
  end
 }

pdf 的链接如下所示：

<%= link_to 'Download PDF', load_path(@load, :format => "pdf") %>

这将为我提供一个没有样式的 pdf 的链接。

在我的 application.rb 中，我已这样配置 pdfkit：

config.middleware.use PDFKit::Middleware, :print_media_type => true

我还将其添加到我的 layouts/application.html.erb 文件中：

<%= stylesheet_link_tag    "application", :media => "all" %>

原文

I have a rails 3.1 app that creates pdf documents using pdfkit, and everything works as specified, except for the fact that the generated pdfs don't have any styling. I am assuming that wkhtmltopdf doesn't have access to my stylesheets and that it is not a larger issue than that. Would anyone have a clue as to how you would allow access to these stylesheets? I have basically followed railscast #220 on the subject, however I have had to create a new initializer to get pdfkit to work with rails 3.1.

This is the initializer that I had to use to get pdfkit to work with rails 3.1

ActionController::Base.asset_host = Proc.new { |source, request|
  if request.env["REQUEST_PATH"].include? ".pdf"
    "file://#{Rails.root.join('public')}"
  else
    "#{request.protocol}#{request.host_with_port}"
  end
 }

The link to the pdf looks like this:

<%= link_to 'Download PDF', load_path(@load, :format => "pdf") %>

This will give me a link to the pdf that has no styling.

In my application.rb I have configured pdfkit as such:

config.middleware.use PDFKit::Middleware, :print_media_type => true

I have also added this to my layouts/application.html.erb file:

<%= stylesheet_link_tag    "application", :media => "all" %>

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当梦初醒 2024-12-20 23:17:55

从 https://github.com/pdfkit 中找到的中间件代码中窃取几行/pdfkit/blob/master/lib/pdfkit/middleware.rb

你可以使用：

root = PDFKit.configuration.root_url || "#{env['rack.url_scheme']}://#{env['HTTP_HOST']}/"
html.gsub!(/(href|src)=(['"])\/([^\"']*|[^"']*)['"]/, '\1=\2' + root + '\3\2')

我的例子是：

html = render_to_string #render current action to string
root = PDFKit.configuration.root_url || "#{env['rack.url_scheme']}://#{env['HTTP_HOST']}/"
html.gsub!(/(href|src)=(['"])\/([^\"']*|[^"']*)['"]/, '\1=\2' + root + '\3\2')
kit = PDFKit.new(html, :print_media_type => true)

Stealing a couple of lines from the middleware code found at https://github.com/pdfkit/pdfkit/blob/master/lib/pdfkit/middleware.rb

You can use:

root = PDFKit.configuration.root_url || "#{env['rack.url_scheme']}://#{env['HTTP_HOST']}/"
html.gsub!(/(href|src)=(['"])\/([^\"']*|[^"']*)['"]/, '\1=\2' + root + '\3\2')

My example is:

html = render_to_string #render current action to string
root = PDFKit.configuration.root_url || "#{env['rack.url_scheme']}://#{env['HTTP_HOST']}/"
html.gsub!(/(href|src)=(['"])\/([^\"']*|[^"']*)['"]/, '\1=\2' + root + '\3\2')
kit = PDFKit.new(html, :print_media_type => true)

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倾｀听者〃 2024-12-20 23:17:55

对我来说，这是 ubuntu 安装的问题。我刚刚从源代码重新安装：

# first, installing dependencies
sudo aptitude install openssl build-essential xorg libssl-dev

# for 64bits OS
wget http://wkhtmltopdf.googlecode.com/files/wkhtmltopdf-0.9.9-static-amd64.tar.bz2 
tar xvjf wkhtmltopdf-0.9.9-static-amd64.tar.bz2
mv wkhtmltopdf-amd64 /usr/local/bin/wkhtmltopdf
chmod +x /usr/local/bin/wkhtmltopdf

# for 32bits OS
wget http://wkhtmltopdf.googlecode.com/files/wkhtmltopdf-0.9.9-static-i386.tar.bz2 
tar xvjf wkhtmltopdf-0.9.9-static-i386.tar.bz2
mv wkhtmltopdf-i386 /usr/local/bin/wkhtmltopdf
chmod +x /usr/local/bin/wkhtmltopdf

现在一切都对我有用。所以我的建议是不要通过此命令安装 wkhtmltopdf sudo apt-get install wkhtmltopdf 并从源安装它。完整说明
用于安装过程

For me it was problem with installation for ubuntu. I just reinstalled from source:

# first, installing dependencies
sudo aptitude install openssl build-essential xorg libssl-dev

# for 64bits OS
wget http://wkhtmltopdf.googlecode.com/files/wkhtmltopdf-0.9.9-static-amd64.tar.bz2 
tar xvjf wkhtmltopdf-0.9.9-static-amd64.tar.bz2
mv wkhtmltopdf-amd64 /usr/local/bin/wkhtmltopdf
chmod +x /usr/local/bin/wkhtmltopdf

# for 32bits OS
wget http://wkhtmltopdf.googlecode.com/files/wkhtmltopdf-0.9.9-static-i386.tar.bz2 
tar xvjf wkhtmltopdf-0.9.9-static-i386.tar.bz2
mv wkhtmltopdf-i386 /usr/local/bin/wkhtmltopdf
chmod +x /usr/local/bin/wkhtmltopdf

And everything works now for me. So my advice is do not install wkhtmltopdf by this command sudo apt-get install wkhtmltopdf and install it from sources. Full instructions
for installation process

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不知所踪 2024-12-20 23:17:55

我知道您正在寻找将呈现整个页面的解决方案，只是提醒人们，

class DocumentController < ApplicationController

  def show
    @document = Document.last
    # ... implement your respond_to

    kit = PDFKit.new(@document.content, :page_size => 'Letter')
    kit.stylesheets << "#{Rails.root}/app/assets/stylesheets/pdf.css"
    send_data kit.to_pdf, :filename => "#{@document.title}.pdf", :type => 'application/pdf'
  end

end

现在仍然存在无问题的解决方法，pdf.css必须是css，所以理论上，如果您需要加载sass，请从预编译的公共加载它/资产/

I know you're looking for solution that will render whole page, just reminder for googling people that there is still problem free workaround

class DocumentController < ApplicationController

  def show
    @document = Document.last
    # ... implement your respond_to

    kit = PDFKit.new(@document.content, :page_size => 'Letter')
    kit.stylesheets << "#{Rails.root}/app/assets/stylesheets/pdf.css"
    send_data kit.to_pdf, :filename => "#{@document.title}.pdf", :type => 'application/pdf'
  end

end

now the pdf.css must be css, so teoretically if you need to load sass load it from pre-compiled public/assets/

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