7

我正在尝试以横向格式通过电子邮件发送 .pdf。我一直在使用 WickedPdf.new.pdf_from_string 方法来尝试这样做。即使我指定横向格式，通过电子邮件发送的 PDF 也是纵向的。

如果有人能告诉我一种方法来实现这一点，我将不胜感激。

邮寄者：

class ProjectMailer < ActionMailer::Base
  def email_mindmap_process(project, user, unused_list_items_column1, unused_list_items_column2)
    @project = project
    @user = user
    mail(:subject => "You've received a MindMap from #{@user.email}!", :to => @project.destination_email) do |format|
      format.pdf do
        attachments["#{@project.title}.pdf"] = WickedPdf.new.pdf_from_string(render_to_string(:pdf => "MindMap", :template => 'projects/show.pdf.html.erb', :orientation => 'Landscape', :locals => {:project => @project, :user => @user }))
      end
    end
  end
end

控制器：

def email_mindmap_process
  @project = Project.find(params[:id])
  @user = current_user
  begin
    ProjectMailer.email_mindmap_process(@project, @user, @unused_list_items_column1, @unused_list_items_column2).deliver
    flash[:notice] = "We have emailed your MindMap to #{@project.destination_email}"
  rescue Net::SMTPAuthenticationError, Net::SMTPServerBusy, Net::SMTPSyntaxError, Net::SMTPFatalError, Net::SMTPUnknownError => e
    flash[:error] = "There was a problem emailing #{@project.destination_email}. Please double-check the address"
  end
end
4

2 回答 2

17

我联系了 WickedPDF gem 的创建者 Miles Sterrett，他推荐了以下内容，效果很好！

attachments["#{@project.title}.pdf"] = WickedPdf.new.pdf_from_string(render_to_string(:pdf => "MindMap", :template => 'projects/show.pdf.html.erb',  :locals => {:project => @project, :user => @user }), {:orientation => 'Landscape'})

非常感谢 Miles 的及时响应，并构建了如此有用的宝石！

于 2013-09-28T08:51:02.453 回答
0

我想分享一个我发现没有使用的解决方案render_to_string。我事先解析 erb 文件，然后将该字符串作为第一个参数传递给pdf_from_string.

例子

parsed_content = File.read("#{Rails.root}/app/views/content.erb")
render = ERB.new(parsed_content)
content = render.result(binding)

pdf = WickedPdf.new.pdf_from_string(
  content,
  :orientation => 'Landscape'
)

我希望这对某人有帮助。

于 2018-06-15T13:35:15.457 回答