Rails3 - wicked_pdf gem，从动作邮件模型调用时的页脚问题 [英] Rails3 - wicked_pdf gem, footer issue when calling from action mailer model

问题描述

我在 action mailer rails 3 模型中使用了 wicked_pdf pdf_from_string.pdf 渲染完美地做到了这一点:

I'm using wicked_pdf pdf_from_string inside an action mailer rails 3 model. The pdf render perfectly doing this:

附件["pdf.pdf"] = WickedPdf.new.pdf_from_string(render_to_string(:pdf => "pdf.pdf",:template => 'documents/show.pdf.erb'))

attachments["pdf.pdf"] = WickedPdf.new.pdf_from_string( render_to_string(:pdf => "pdf.pdf",:template => 'documents/show.pdf.erb') )

当我尝试传递选项 :footer 时，它不适用于这些选项:

When I try to pass the option :footer, it does not work with these options:

attachments["pdf.pdf"] = WickedPdf.new.pdf_from_string(
    render_to_string(:pdf => "pdf.pdf", :template => 'pdf/pdf.html.erb', :layout => 'pdfs/pdf', 
    :footer => {:html => {:template => 'pdf/pdf_footer.html.erb', :layout => 'pdfs/pdf'}, :spacing => -65})
  )

请注意，:footer 选项在控制器内部很有效，来自控制器默认的 'render' :pdf 方法.

Note that :footer option works sweet inside a controller, coming from a controller default 'render' :pdf method.

我最终做了这样的事情，但我不想使用陷阱.

I ended up doing something like this, but I'd prefer not using gotchas.

File.open("/tmp/wicked_pdf_#{@model.number}.html", 'w+b', 0644) { |f|
 f.write render_to_string({:template => 'pdf/pdf_footer.html.erb', :layout => 'pdfs/pdf'})
}
attachments["pdf.pdf"] = WickedPdf.new.pdf_from_string(
      render_to_string(:pdf => "pdf.pdf", :template => 'pdf/pdf.html.erb', :layout => 'pdfs/pdf'),
      :footer => {:html => {:url => "file:///tmp/wicked_pdf_#{@model.number}.html"}, :spacing => -65}                 
    )

有什么线索可以让它正常工作吗?

Any clue to have this working properly?

推荐答案

这看起来与这个问题中的问题有关:

This looks to be related to the problem in this question:

Rails 3 ActionMailer 和 Wicked_PDF

当您调用 render 时邮寄者不喜欢它的地方.

Where the mailer doesn't like it when you call render.

尝试将您的附件设置包装在一个 response_to 块中，如下所示:

Try wrapping your attachment setting in a respond_to block like so:

mail(:subject => 'Your pdf', :to => user.email) do |format|
  format.text
  format.pdf do
    attachments['pdf.pdf'] = WickedPdf.new.pdf_from_string(
      render_to_string(
        :pdf      => "pdf.pdf",
        :template => 'pdf/pdf.html.erb',
        :layout   => 'pdfs/pdf', 
        :footer   => {
          :html => {
            :template => 'pdf/pdf_footer.html.erb',
            :layout   => 'pdfs/pdf'
          },
          :spacing => -65
        }                 
      )
  end
end

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