ruby 遍曆mongo資料

標籤：

 

    next_played_videos = @channel.videos.active.where(:begin_time.gt => begin_time).asc(:begin_time)     next_played_videos.each do |video|      video.begin_time = begin_time         video.end_time = video.begin_time.to_i + video.duration      begin_time = video.end_time           video.save    end

這裡使用 each 操作遍曆效率比較低，可以使用 Mongoid 的 inc 方法批量對指定的欄位值進行增減，文檔見 http://mongoid.org/en/mongoid/docs/persistence.html。

next_played_videos = @channel.videos.active.where(:begin_time.gt => begin_time).asc(:begin_time)next_played_videos.inc(begin_at: [email protected], end_at: [email protected])

 

ruby 遍曆mongo資料