Rails：CSV导出

Question

我使用内置的csv函数require 'csv'。但是当我尝试导出数据时，它只导出当前页面中的记录（包含10个条目）而不是全部。我应该改变什么？

我的sales.controller.rb：

def index
 @sales = Sale.accessible_by(current_ability).order("created_at desc").paginate(:page => params[:page], :per_page => 10)
  respond_to do |format|
    format.html
    format.csv { send_data @sales.to_csv, filename: "sales-#{Date.today}.csv"}
  end
end

我的sale.rb型号：

def self.to_csv
 attributes = %w{created_at id brand token customer_id orderid user_id product channel1 channel2}
 CSV.generate(headers: true) do |csv|
   csv << attributes

   all.each do |sale|
     csv << sale.attributes.values_at(*attributes)
   end
 end
end

Answer 1

如果您想获取所有记录而不是pagination，那么

def index
   @all_sales = Sale.accessible_by(current_ability).order("created_at desc")
   @sales = @all_sales.paginate(:page => params[:page], :per_page => 10)
   respond_to do |format|
     format.html
     format.csv { send_data @all_sales.to_csv, filename: "sales-#{Date.today}.csv"}
   end
end

享受......！