如何從文件轉儲服務器

post.rb

class Post < ActiveRecord::Base 
    # id     :integer(11) not null, primary key 
    # title   :text 
    # body   :text 
end

和post_dumps.rb

class PostDump < ActiveRecord::Base 
     # id     :integer(11) not null, primary key 
     # dupm_file   
     mount_uploader :dupm_file, DumpUploader # sql file was uploaded 
    end

如何PostDumpsController創建這樣的方法

class PostDumpsController < ApplicationController 
    def update_posts_from_dump 
    @dump = PostDump.find(params[:id]) 
    Post.destroy_all 
    # run from root user in server 
    mysql -uroot -ppasswrord production_bd < @dump.dupm_file_url 
    end 
end

來源

2017-07-07 Serhii Danovskyi

這看起來像一個瘋狂的危險的事情要做。如果你沒有別的選擇，看看'system'命令。 – tadman

@tadman如果我要爲這個話題寫一首詩，我會將它命名爲「兩條反射，作爲如何拍攝自己的腿的答案。」 – mudasobwa