小编jho*_*nna的帖子

我想为我的费率操作创建一个after_save方法.它会将rating_score/ratings分开并更新列评级.

class KonkurrancersController < ApplicationController
  def rate
    @konkurrancer = Konkurrancer.find(params[:id])
    @container = "Konkurrancer"+@konkurrancer.id.to_s

    @konkurrancer.rating_score += params[:vind][:rating].to_i
    @konkurrancer.ratings += 1
    @konkurrancer.save

    respond_to do |format|
      format.js
    end
  end
end

这是我的模特:

class Konkurrancer < ActiveRecord::Base
  after_save :do_foobar

  private
    def do_foobar

      rating_score = self.rating_score
      ratings = self.ratings
      rating = (rating_score/ratings)
      self.update_attributes(:rating => rating)

    end
end

我的rails日志:

Started POST "/konkurrancers/rate/46" for 127.0.0.1 at 2011-04-26 23:40:56 +0200

  Processing by KonkurrancersController#rate as */*
  Parameters: {"utf8"=>"Ô£ô", "authenticity_token"=>"MACFM37hX4S6XA9vryn7gtfl21P
vcaPBSiKDI8mfurg=", "vind"=>{"rating"=>"4"}, "id"=>"46"}
  ?[1m?[36mKonkurrancer Load (1.0ms)?[0m  ?[1mSELECT `konkurrancers`.* FROM `kon
kurrancers`?[0m …