学习Migrations最佳的学习资料莫过于 Ruby On Rails网站上的 Guides 系统文章了,链接在http://guides.rubyonrails.org/migrations.html 本文的很多代码都是出自那里. 在我的理解中,Migrations就是一个基于ruby,针对数据库(SQL)的DSL,它的出现也是符合Rails中处处皆Ruby的原则的,正是专注于Ruby,这样Rails才显得别样的...
要创建生产数据库,请执行以下操作: RAILS_ENV=production rake db:create 另外,看看rake db:setup它将运行您放入的任何内容db/seeds.rb.
ruby-on-rails之警告 : Insecure world writable dir when I run a ruby or gem command 不知道为什么我会得到这个,但我刚刚安装了 RVM,新的 Ruby 1.9,并重新安装了一堆 gem,我得到了这个 /Users/johnsmith/.rvm/rubies/ruby-1.9.1-p378/bin/gem:4:警告:路径中不安全的世界可写目录/opt/local/bin,模式...
I am following the Install Ruby for Windows video. I have installed Ruby and the DevKit. When I try to download the following Gems from Ruby via the CMD Prompt (Bundler, SQLite, rails), I receive the following message: "could not find a valid gem...
cmd.ruby %q{-e "puts 'Hello world'"}3. Advanced Interface3.1 Environment variablesThe environment variables need to be provided as hash entries, that can be set directly as a first argument:cmd.run({"RAILS_ENV" => "PRODUCTION"}, :rails, "server")...
ruby-on-rails 如何修复Zsh中的“command not found：mysql”粘贴这一行，将MySQL的路径附加到环境变量...
> warning: please see https://github.com/whitequark/parser#compatibility-with-ruby-mri. > Name,Primary,Searchable,Writable,UpToDate,RepairProgress,Version > code-search-1,true,true,true,true,100.0,72e27df7c631b45e026b42bfef059328fa040e17 > commits-5,true...
Ruby APIs: Key Generation, Encryption & Decryption API is activated by including Sym module in a class, it adds easy to use encr/decr methods. Application API to shadow the CLI usage You can instantiate Sym::Application class with a hash representing CLI arguments, and then call it’s #exe...
ruby-on-rails 如何修复Zsh中的“command not found：mysql”粘贴这一行，将MySQL的路径附加到环境变量...
Ruby on Rails: Subl - Command Not Found Hey guys, I'm new to RoR and I'm having a problem with adding sublime text 2. I'm running mac os x 10.8.2. Here is what I got: $ cd first_app/ $ subl Gemfile -bash: subl: command not found ...