ying39 (Amoy影)

麻烦推荐比较好的 Rails 实战线上培训课程

ying39 — Sun, 10 Apr 2016 17:53:10 +0800

如题目，是否有以开发某一个项目为目标的实战 Rails 开发培训课程，求推荐哈。

求解~看 RoR Tutorial 书中关于 spec 的问题

ying39 — Fri, 11 Apr 2014 23:35:53 +0800

按书的第三章来做练习，具体在第 75 页，输入 bundle exec rspec spec/requests/static_pages_spec.rb 结果提示一大堆问题，看不明白，求解。

/Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common/zipper.rb:1:in require': cannot load such file -- zip/zip (LoadError) from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common/zipper.rb:1:in' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common.rb:9:in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common.rb:9:in' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver.rb:29:in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver.rb:29:in' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium-webdriver.rb:1:in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium-webdriver.rb:1:in' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:inblock (2 levels) in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in each' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:inblock in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in each' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:inrequire' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler.rb:132:in require' from /Users/air-mx/rails_projects/sample_app/config/application.rb:12:in' from /Users/air-mx/rails_projects/sample_app/config/environment.rb:2:in require' from /Users/air-mx/rails_projects/sample_app/config/environment.rb:2:in' from /Users/air-mx/rails_projects/sample_app/spec/spec_helper.rb:3:in require' from /Users/air-mx/rails_projects/sample_app/spec/spec_helper.rb:3:in' from /Users/air-mx/rails_projects/sample_app/spec/requests/static_pages_spec.rb:1:in require' from /Users/air-mx/rails_projects/sample_app/spec/requests/static_pages_spec.rb:1:in' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in load' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:inblock in load_spec_files' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in each' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:inload_spec_files' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/command_line.rb:22:in run' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:80:inrun' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:17:in block in autorun' air-mxtekiMacBook-Air:sample_app air-mx$ bundle exec rspec spec/requests/static_pages_spec.rb /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common/zipper.rb:1:inrequire': cannot load such file -- zip/zip (LoadError) from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common/zipper.rb:1:in <top (required)>' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common.rb:9:inrequire' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver/common.rb:9:in <top (required)>' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver.rb:29:inrequire' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium/webdriver.rb:29:in <top (required)>' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium-webdriver.rb:1:inrequire' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/selenium-webdriver-2.0.0/lib/selenium-webdriver.rb:1:in <top (required)>' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:inrequire' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in block (2 levels) in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:ineach' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in block in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:ineach' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in require' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler.rb:132:inrequire' from /Users/air-mx/rails_projects/sample_app/config/application.rb:12:in <top (required)>' from /Users/air-mx/rails_projects/sample_app/config/environment.rb:2:inrequire' from /Users/air-mx/rails_projects/sample_app/config/environment.rb:2:in <top (required)>' from /Users/air-mx/rails_projects/sample_app/spec/spec_helper.rb:3:inrequire' from /Users/air-mx/rails_projects/sample_app/spec/spec_helper.rb:3:in <top (required)>' from /Users/air-mx/rails_projects/sample_app/spec/requests/static_pages_spec.rb:1:inrequire' from /Users/air-mx/rails_projects/sample_app/spec/requests/static_pages_spec.rb:1:in <top (required)>' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:inload' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in block in load_spec_files' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:ineach' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in load_spec_files' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/command_line.rb:22:inrun' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:80:in run' from /Users/air-mx/.rvm/gems/ruby-2.0.0-p247/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:17:inblock in autorun'

请教如何升级 git 版本

ying39 — Fri, 04 Apr 2014 01:03:24 +0800

开始学习 git，看了下版本很旧，是 1.7 的，所以开始各种折腾，发现无论如何搞不定，特此发贴请教：

1.官方下载 mac 的 dmg 安装文件，安装完无效 2.通过 brew install git，之后再运行 brew git update 提示如下，顺带请教量问题：（1）是否一定要升级整个 Xcode，太大了占空间，只升级命令行工具是否可行。（2）如何卸载 MacPorts，是否是因为这个冲突引起版本无法更新的。 Warning: Your Xcode (5.0.2) is outdated Please update to Xcode 5.1. Xcode can be updated from the App Store. Warning: It appears you have MacPorts or Fink installed. Software installed with other package managers causes known problems for Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again. Warning: git-1.9.1 already installed, it's just not linked

3.因为提示 not linked，所以执行 brew link git，提示： Warning: Could not link git. Unlinking... Error: Could not symlink file: /usr/local/Cellar/git/1.9.1/bin/git-upload-pack Target /usr/local/bin/git-upload-pack already exists as a symlink to /Applications/GitHub.app/Contents/Resources/git/bin/git-upload-pack. If this file is from another formula, you may need to brew unlink it. Otherwise, you may want to delete it. To force the link and overwrite all other conflicting files, do: brew link --overwrite formula_name

To list all files that would be deleted: brew link --overwrite --dry-run formula_name

一个刚被 IBM 裁退的销售自学编程方向的选择，Ruby or IOS

ying39 — Fri, 07 Feb 2014 22:58:48 +0800

首先声明发这个帖子不是那种在 KFC 点餐时唱“更多欢笑更多快乐尽在麦当劳”的瞎胡闹行为。的的确确希望得到论坛前辈的指导。本人 32 岁，近 8 年来都是在 IT 企业做大客户销售工作，先后供职联想、HP 和 IBM，最后一份工作在 IBM 负责小型机的大客户销售，之前收入尚可。不过市场总是残酷的，全球经济的不景气使各大硬件厂商都受到巨大影响，其中也包括 IBM 这只擅长跳舞的大象，曾经风光无限号称奶牛的小型机业务，随着淘宝等去 IOE 的趋势下，连续几季度的负增长，最终结局就是我所在的 TEAM 8 个销售最后只剩下两个，小弟很不幸也在被裁退之列。所幸 I 公司给的赔偿尚可，加之去年有预见此种行业趋势，自己投资了一家从事移动互联网电商解决软件的公司，也算未彻底失业。不过深感移动互联网对于传统行业颠覆的大势所趋，一直希望能自学一定的技术，当碰到机遇时候能快速启动，所以有了今天这个帖子，以下是我想自学开发的原因和针对两款语言自己的一些分析，望各位前辈指点一二。(有朋友可能会问我自己公司有团队了为什么还自学，主要原因是目前自己公司主要技术为 HTML5+JAVA 开发，多年销售沉淀的客户，加之借助微信和移动电商火热，目前开发人员工作完全饱和，且隐约觉得用 JAVA 开发 WEBAPP 过重，一些客户需求无法快速响应，想自己尝试下，当然还一个原因是觉得开发是件很酷的事情）

1.基础：Ruby 学完《笨方法学 Ruby》，之后看 WEB 开发敏捷之道吃力，年前在啃 Ruby 基础教程。IOS 0 基础 2.自学环境所在地区貌似没有太多 Ruby 环境可以请教。IOS 方面有几个朋友开发的 APP 在 IOS 类目排行前 5，有问题肯定能找到人指点。 3.希望达到的程度：当碰到好的点子，能在“相对短的时间里，独立开发出一定的 APP 演示原型”，之后找熟悉的金主融到启动资金后招专业研发人员开发运营。同时能偶尔做点小软件换换零花钱（可能很多前辈会觉得我想的太简单，但是作为我这种技术白痴看来，中国做生意很多时候搞定关系也很重要）

很粗浅的问题，按书的代码输提示错误。

ying39 — Sat, 21 Dec 2013 21:23:47 +0800

今天正式开始看 Programming Ruby 中文版，第 66 页按书中代码输入，结果运行提示错误，不知道何原因，很初级了，想不明白。

air-mxtekiMacBook-721:PR 721-mx$ ruby pr63.rb
pr63.rb:2:in `initialize': wrong number of arguments (4 for 3) (ArgumentError)
    from pr63.rb:21:in `new'
    from pr63.rb:21:in `<main>'



class Song
    def initialize(name,artist,duration)
        @name =name
        @artist =artist
        @duration = duration
    end

    def to_s
        "Song: #@name  #@artist(#duration)"
    end

end

class KaraokSong < Song
    def initailize(name,artist,duration,lyrics)
    super(name,artist,duration)
    @lyrics=lyrics
    end
end

song = KaraokSong.new("adsf","dsaf",34234,"234")
song.to_s

RoR 适合做嵌入微信的 webapp 吗？

ying39 — Tue, 17 Dec 2013 20:04:36 +0800

如题，包括百度现在推广的轻应用吗

比较笨的问题，关于 RoR 和 HTML5

ying39 — Thu, 03 Oct 2013 22:34:09 +0800

现在开始学习 RoR，想请教下，如果把里面的视图页面改写成 html5，是否就支持手机来访问呢？实现触摸等功能？

求购《Programming Ruby 中文版》，可原价。

ying39 — Thu, 03 Oct 2013 01:02:10 +0800

如题，英语实在差，找不到好的入门教程了，希望不需要再看这本书的高手转让，非常感谢！

判断 gets.chomp 获取的类型

ying39 — Sat, 07 Sep 2013 16:45:46 +0800

还是一个练习，if next_move.is_a?(Numeric)== true 这个我输入任意数字，他都跳转到了 dead 去，是哪里写错了吗？

def gold_room()
    puts "This room is full of gold. How much do you take?"

    prompt
    next_move = gets.chomp
    if next_move.is_a?(Numeric)== true
        how_much=next_move.to_i()
    else
        dead("Man,learn to type a number.")
    end

    if how_much<50
        puts "Nice,you're not greedy,you win!"
        Process.exit(0)
    else
        dear("You greedy bastard!")
    end
end

看笨方法学 Ruby 第 33 课加分项问题。

ying39 — Sat, 07 Sep 2013 15:42:32 +0800

刚开始学习编程，选择 Ruby 做入门。看了教程第 33 课的问题：http://lrthw.github.io/ex33/，加分项里说要做个函数出来，已经实现。但是有个问题，如何通过键盘输入值来作为函数的两个参数呢？如下：就是 pushnmuh 函数，是用.gets.chomp() 吗？好像这样传入的是字符串，而且如何让他传入两个参数呢？请教。

def pushnum(args1,args2) i = 0 nubmers=[] while i< args1 puts "At the top i is #{i}" nubmers.push(i)

i = i+args2 puts "Numbers now: #{nubmers}" puts "At the bottom i is #{i}" end

puts "The numbers"

for num in nubmers puts num end

end puts "." pushnum(55,3)

wiki 上推荐的书单缺货了，如何学习 ruby?

ying39 — Thu, 15 Aug 2013 23:34:43 +0800

小弟刚刚开始学习 ruby，这个社区相当好，学会不少入门的东西。不过目前我只在看《笨法学 Ruby》的课程，里面都是一些案例，讲得不错但是不太深入。看社区里推荐得 Ruby 入门书籍，好像是 2009 年出版得，现在都无货了，是否有其他适合比较全面系统得学习 Ruby 入门得书吗？