RoR。在rails中统计一个对象中"No“、"Yes”和“not apply”的数量

# 在Rails模型中定义方法
class YourModel < ApplicationRecord
  def count_values
    # 统计"No"、"Yes"和"not apply"的数量
    counts = {
      "No" => 0,
      "Yes" => 0,
      "not apply" => 0
    }

    # 遍历对象中的属性值进行统计
    counts["No"] =  self.attributes.values.select { |value| value == "No" }.count
    counts["Yes"] = self.attributes.values.select { |value| value == "Yes" }.count
    counts["not apply"] = self.attributes.values.select { |value| value == "not apply" }.count

    counts
  end
end

# 在控制器中调用方法获取统计结果
class YourController < ApplicationController
  def show
    @your_object = YourModel.find(params[:id])
    @value_counts = @your_object.count_values
  end
end