如何使用Wicked-pdf下载多个pdf
下面是我在这里使用的代码行，
@awb_orders = Spree::Order.where('created_at >= ? AND created_at <= ?', DateTime.now-1.month, DateTime.now).where(:state => 'complete').order("created_at DESC")
@awb_orders.each do |order|
@order = order
respond_to do |format|
format.html
format.pdf do
render pdf: "file_name_#{DateTime.now}",
save_to_file: Rails.root.join('public', "invoice_#{DateTime.now}.pdf")
end
end
end
我得到以下结果
Render and/or redirect were called multiple times in this action...... "redirect_to(...) and return".
任何人都可以在我出错的地方帮助我吗？