如何在活動管理員中將復選框值保存到數據庫？

Question

我是ruby on rails和active admin的新手，我需要創建注冊費復選框。 我檢查時，復選框中的值未保存到數據庫中。 誰能幫我 ？？

  form do |f|
       f.inputs do
       f.input :name, label: "Student Name"
       f.input :dob,:label => "Date of Birth"
       f.input :age,:label => "Age"
       f.input :gender, as: :radio, :label => "Gender", :collection => [ "Male", "Female"] 
       f.input :reg_fee, :as => :check_boxes, :collection => RegChargeSetup.all.map{|v| ["#{v.reg_fee}"]}
    end
    f.actions
end 

Answer 1

從您的代碼中，您將獲取array of arrays ，而不是您應該采用array of strings ，

所以，改變

f.input :reg_fee, :as => :check_boxes, :collection => RegChargeSetup.all.map{|v| ["#{v.reg_fee}"]}

至，

f.input :reg_fee, :as => :check_boxes, :collection => RegChargeSetup.all.map{|v| "#{v.reg_fee}"}



form do |f|
       f.inputs do
       f.input :name, label: "Student Name"
       f.input :dob,:label => "Date of Birth"
       f.input :age,:label => "Age"
       f.input :gender, as: :radio, :label => "Gender", :collection => [ "Male", "Female"] 
       f.input :reg_fee, :as => :check_boxes, :collection => RegChargeSetup.all.map{|v| "#{v.reg_fee}"}
    end
    f.actions
end