重构set redis

来源：互联网发布：根据域名查询服务器编辑：程序博客网时间：2024/05/22 06:55

def set_redis_data(channel_id,channel)      redis = Redis.new(:host => '10.xxx.xx.xx', :port => 6379)      redis.del(channel_id)      yesterday = (Time.now - 36000).to_i      all_channel_videos = channel.videos.not_deleted.where(:begin_time.gt => yesterday).desc(:begin_time)      all_channel_videos.each do |v|        video_hash = {}        video_hash[:showid] = v.showid        video_hash[:showname] = v.showname        video_hash[:begin_time] = v.begin_time        video_hash[:end_time] = v.end_time        video_hash[:vid] = v.vid        video_hash[:thumbhd] = v.thumbhd        video_hash[:channel_id] = v.channel_id        video_hash[:title] = v.title        redis.lpush channel_id, video_hash.to_json      end    end

变形第一次，在video_controller的方法

def set_redis_data(channel)  cache_key  = "channel_#{channel.channel_id}"  video_list = Redis::List.new("channel_#{channel.channel_id}")  needed_attributes = %w(show_id showname begin_time end_time vid thumbhd channel_id title)  videos = channel.videos.active.where(:begin_time.gt => 10.hours.ago.to_i).only(needed_attributes).asc(:begin_time)  videos_json = videos.map { |video| video.to_json }  video_list.clear  video_list.push *videos_jsonend

第二次变形，放channel.rb里啦

<pre name="code" class="html">  def set_redis    video_list = Redis::List.new("channel_#{channel_id}")    needed_attributes = %w(showid duration showname begin_time end_time vid thumbhd channel_id title)    all_videos = videos.active.where(:begin_time.gt => 10.hours.ago.to_i).only(needed_attributes).asc(:begin_time)    video_list.clear    unless all_videos.empty?      videos_json = all_videos.map { |video| video.to_json }      video_list.push *videos_json    end  end

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