ruby-on-rails - 以横向发送电子邮件给WickedPDF

Question

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方法来尝试执行此操作。即使我指定了横向格式，通过电子邮件发送的PDF还是纵向格式。

如果有人可以向我展示实现此目标的方法，我将不胜感激。

邮件:

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

Controller :

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

Answer 1

我联系了WickedPDF gem 的创建者Miles Sterrett，他推荐了以下方法，效果非常好!

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迅速做出回应，并建立了如此有用的宝藏!