Ruby on Rails&Prawn PDF - 创建客户列表

Question

我正在尝试用Prawn生成PDF报告,我可以通过传递单个ID轻松地对show动作进行报告,但我想生成一个包含每个记录的报告.像标准的rails scaffold索引页面.使用rails它看起来像这样:

<% @customer.each do |customer| %>
<%= customer.id %>
<%= customer.name %>
<%end%>

简单!

但是我不确定如何用Prawn做到这一点..

就像是:

def index
 @customer = Customer.all
  respond_to do |format|
  format.html
   Prawn::Document.generate("customer_list.pdf") do |pdf|
   pdf.text "#{@customer.id} "
    pdf.text "#{@customer.name} "  
       end
    end
end

这显然是不对的.

有任何想法吗？谢谢.

Answer 1

使用Prawn,Gemfile => gem'prawn ',bundle很容易

假设您有客户模型:

customers_controller.rb

def show
   @customer = Customer.find(params[:id])
   respond_to do |format|
     format.html
     format.pdf do
        pdf = CustomerPdf.new(@customer)
        send_data pdf.render, filename: "customer_#{id}.pdf",
                              type: "application/pdf",
                              disposition: "inline"
     end
   end
end

然后在apps目录下创建pdfs文件夹,并创建文件customer_pdf.rb

class CustomerPdf< Prawn::Document

  def initialize(customer)
    super()
    @customer = customer
    text "Id\##{@customer.id}"
    text "Name\##{@customer.name}"
  end

end

show.html.erb

  <div class="pdf_link">
    <%= link_to "E-version", customer_path(@customer, :format => "pdf") %>
  </div>

编辑:

并且不要忘记将pdf包含在config/initializers/mime_types.rb中

Mime::Type.register "application/pdf", :pdf