WickedPDF在景观定位中的应用

Question

我正在尝试以横向格式发送电子邮件给.pdf。我一直在使用WickedPdf.new.pdf_from_string方法来尝试这样做。即使我指定了景观格式，通过电子邮件发送的PDF也在人像中。

如果有人能告诉我如何做到这一点，我会非常感激的。

梅勒：

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

主计长：

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宝石的创建者迈尔斯·斯特雷特，他推荐了以下内容，这是非常完美的！

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'})

非常感谢迈尔斯的迅速反应，并建立了这样一个有用的宝石！

Answer 2

我想分享一个不使用render_to_string的解决方案。我先解析erb文件，然后将该字符串作为pdf_from_string中的第一个arg传递。

示例

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。