复选框和数据库Rails

Question

Rails中的复选框

我第一次尝试使用Multiple选项：

#views/values/new.html.erb*

<% @values =["Power", "Independance", "Tradition"] %>
<%= form_for @resultvalue do |f| %>
   <% @values.each do | value | %>
       <%= f.check_box :values, { multiple: true }, value, false %>
       <%= f.label value %>
   <% end %>
   <%= f.submit%>  
<% end %>

#controller/resultvalue_controller.rb

class ResultvaluesController < ApplicationController
[...]
 def resultvalue_params
     params.require(:resultvalue).permit(values:[])
 end
end

#models/resultvalue.rb

class Resultvalue < ApplicationRecord
    serialize :values, Array 
end

这是我提交时的日志：

Parameters: {"utf8"=>"✓", "authenticity_token"=>"lf/sH123AoHdGyA==", "resultvalue"=>{"values"=>["Power", "Tradition"]}, "commit"=>"create", "id"=>"1"}

我遵循了此教程-> https://medium.com/programming-problem-solving-logbook/rails-multiple-checkboxes-e9c4c7fda356