ShayneChow (ShayneChow)

OS X 下 simple-captcha 验证码无法出来

ShayneChow — Sat, 11 Oct 2014 11:51:07 +0800

维护老项目出现的验证码失效问题问题如图：

#SimpleCaptchasController

  def remote_valid
    result = if params[:value]
               data = SimpleCaptcha::Utils::simple_captcha_value(params[:key] || session[:value])
               data == params[:value].delete(' ').upcase
             else
               false
             end
    render json: {pass: result}, layout: false
  end

线上可以使用，本地项目失效，很久没有碰 rails，到哪都是坑，求解救！

Mac 下 bundle 安装 ‘charlock_holmes’ 各种失败，求指导

ShayneChow — Fri, 10 Oct 2014 15:59:35 +0800

#系统环境：
OS X 10.9.5
ruby 2.0.0p451 (2014-02-24 revision 45167) [x86_64-darwin13.1.0]
Rails 4.0.4

BTW：服务器环境可以正常安装（Ubuntu）

Google 了一下午，愣装不上啊，愁！有说是 bundle 的 bug 的，有说是 charlock_holmes 在 64 位系统的 bug，有说需要依赖 icu4c 的……

记得之前也有这个问题，不知道怎么处理了一下好了一阵子，现在又出现。

icu4c-53.1 already installed 由 brew 管理

Gemfile 里是

# 读取 csv/excel
gem 'roo', git: 'https://github.com/Empact/roo.git'

#gem 'charlock_holmes', git: 'https://github.com/brianmario/charlock_holmes.git'
#gem 'charlock_holmes', '~> 0.6.9.4'

大家看到的，各个版本均尝试了结果如下：

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/bin/ruby extconf.rb --with-icu-dir=/usr/local/opt/icu4c
checking for main() in -licui18n... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
    --with-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/bin/ruby
    --with-icu-dir
    --with-icu-include
    --without-icu-include=${icu-dir}/include
    --with-icu-lib
    --without-icu-lib=${icu-dir}/
    --with-icui18nlib
    --without-icui18nlib
/Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:434:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:519:in `try_link0'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:534:in `try_link'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:720:in `try_func'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:950:in `block in have_library'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:895:in `block in checking_for'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:340:in `block (2 levels) in postpone'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:310:in `open'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:340:in `block in postpone'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:310:in `open'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:336:in `postpone'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:894:in `checking_for'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/mkmf.rb:945:in `have_library'
    from extconf.rb:27:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451@global/gems/charlock_holmes-0.6.9.4 for inspection.
Results logged to /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451@global/extensions/x86_64-darwin-13/2.0.0/charlock_holmes-0.6.9.4/gem_make.out
An error occurred while installing charlock_holmes (0.6.9.4), and Bundler cannot continue.
Make sure that `gem install charlock_holmes -v '0.6.9.4'` succeeds before bundling.

跪求解决方案

关于 gem 'acts-as-taggable-on' 的一个小坑

ShayneChow — Tue, 01 Jul 2014 22:05:05 +0800

今天被'acts-as-taggable-on'这个 gem 的一个小坑狠狠的坑了一把。

昨天更新了一个老项目，加了几个 gem，更新了 bundle 今天下午客户来抱怨有个功能报错一开始感到很奇怪，这与我昨天修改的毫无关系，怎么之前好好地就挂了呢？于是各种搜索，各种查看数据库，依然没有答案后来仔细查看了前后两版的代码，跟这个功能相关的什么都变化，问题出在哪里？调试发现是创建 tag 时会报错发现跟 tag 有关的变化就只有gemfile.lock 我想这不大可能有问题啊，一个 update 而已，不过我还是抱着试试看的心态，改回了原来的旧版结果居然成功了！原来是这个 gem 新旧版本不完全兼容。

不知道这样算不算是个坑，反正把我狠狠坑了一下午，差点开始怀疑人生了。分享一下苦逼的经验

BTW：使用acts-as-taggable-on时最好指定版本 (尤其是在你使用较早版本时候)

# tag
# gem 'acts-as-taggable-on'  #这样会再bundle时更新到最新版，可能会引起意想不到问题
gem 'acts-as-taggable-on', '~> 2.4.1'

gem 'simple_captcha' 无法正常安装，使用 easy_captcha 实现

ShayneChow — Wed, 26 Mar 2014 14:43:54 +0800

被这个问题折腾了很久，给回复表单加验证码功能，使用 simple_captcha。

按照https://github.com/galetahub/simple-captcha说明来操作的

gem 'simple_captcha', :git => 'git://github.com/galetahub/simple-captcha.git'

bundle update
.......
Using simple_captcha (0.1.6) from git://github.com/galetahub/simple-captcha.git (at master)
Using sorcery (0.8.5)
Using turbolinks (2.2.1)
Using uglifier (2.5.0)
Your bundle is updated!

rails g simple_captcha

rake db:migrate

感觉到这里都很正常，启动服务（使用的 RubyMine），报错：

/Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/source/git.rb:179:in `rescue in load_spec_files': git://github.com/galetahub/simple-captcha.git (at master) is not yet checked out. Run `bundle install` first. (Bundler::GitError)
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/source/git.rb:176:in `load_spec_files'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/source/path.rb:86:in `local_specs'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/source/git.rb:150:in `specs'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/lazy_specification.rb:53:in `__materialize__'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/spec_set.rb:88:in `block in materialize'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/spec_set.rb:85:in `map!'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/spec_set.rb:85:in `materialize'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/definition.rb:133:in `specs'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/definition.rb:178:in `specs_for'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/definition.rb:167:in `requested_specs'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/environment.rb:18:in `requested_specs'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/runtime.rb:13:in `setup'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler.rb:119:in `setup'
    from /Users/ShayneChow/.rvm/gems/ruby-2.0.0-p451/gems/bundler-1.5.3/lib/bundler/setup.rb:17:in `<top (required)>'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:135:in `require'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
    from /Users/ShayneChow/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:144:in `require'
    from /Users/ShayneChow/project/lexuan/config/boot.rb:4:in `<top (required)>'
    from /Users/ShayneChow/project/lexuan/bin/rails:3:in `require_relative'
    from /Users/ShayneChow/project/lexuan/bin/rails:3:in `<top (required)>'
    from -e:1:in `load'
    from -e:1:in `<main>'

Process finished with exit code 1

Mac OS X 10.9.2 ruby 2.0.0 rails 4.0.2 不知道是不是我的环境有问题，求解救

折腾太久这个问题，于是在 @yehualiu 的建议下选择了另一个 gem 'easy_captcha' 使用起来挺方便的。不过还是有个问题，就是 rails s 后，报了很多很多警告，跟 rmagick 相关的（摘一段如下）

warning: already initialized constant Magick::PercentGeometry
warning: previous definition of PercentGeometry was here
warning: already initialized constant Magick::AspectGeometry
warning: previous definition of AspectGeometry was here
warning: already initialized constant Magick::LessGeometry
warning: previous definition of LessGeometry was here
……

不知道会不会存在风险。高人路过，不吝赐教，在此谢过。

[已解决，服务器内存不足] 在服务器端 gem 'nokogiri'安装不上，本地测试很正常

ShayneChow — Fri, 21 Mar 2014 20:00:12 +0800

服务器上跑了 bundle，结果出错，上图

sudo apt-get install libxslt-dev libxml2-dev

libxslt-dev libxml2-dev 也已经安装了。网上搜索说是没有这两个库。但是安装了还是报错。

gem install nokogiri -v '1.6.1'
Building native extensions.  This could take a while...
ERROR:  Error installing nokogiri:
    ERROR: Failed to build gem native extension.

    /usr/local/rvm/rubies/ruby-2.0.0-p451/bin/ruby extconf.rb
Cannot allocate memory - /usr/local/rvm/rubies/ruby-2.0.0-p451/bin/ruby extconf.rb 2>&1

Gem files will remain installed in /usr/local/rvm/rubies/ruby-2.0.0-p451/lib/ruby/gems/2.0.0/gems/nokogiri-1.6.1 for inspection.
Results logged to /usr/local/rvm/rubies/ruby-2.0.0-p451/lib/ruby/gems/2.0.0/extensions/x86_64-linux/2.0.0/nokogiri-1.6.1/gem_make.out

发现还有这么个板块牛人很多，于是也来发发图

ShayneChow — Sat, 25 Jan 2014 09:51:31 +0800

画画的水平很一般，没学过，就是喜欢无聊的时候画上几笔。基本都是临摹的，创造性不强。 PS AI 什么的，没用过，都不会。姑且看看 2 张手绘的吧，ruby 新手，画画新手，轻点拍砖。 Bi-Bo Bi-Bo 救火小黄人

格鲁

前些时晚上憋不出代码，画了几张调节心情。最后手机拍的上传，不太清晰，光线也不太好。

访问 Github 一直跳转到帮助界面，不知道如何解决

ShayneChow — Tue, 12 Nov 2013 11:48:10 +0800

每次访问 github 都会指向 https://help.github.com/articles/why-did-i-get-redirected-to-this-page#platform-linux 这个帮助页面。我的一个 Ubuntu 一个 Win7 一个 Android 一个 IOS7 分别使用的 2 个 wifi 均是这个结果，很疑惑，求解啊。

使用 ransack 按发布时间范围搜索的一个问题

ShayneChow — Tue, 29 Oct 2013 15:32:12 +0800

运单号有默认的 created_at 这个字段，我想使用发布时间（created_at）来做范围限制：创建时间由_______ 到_______ 搜索大概齐是这个样子的。

<%= f.label :created_at_gteq, "创建时间由" %>
<%= f.text_field :created_at_gteq %>

<%= f.label :created_at_lteq, "到" %>
<%= f.text_field :created_at_lteq %>

问题是默认的 created_at 格式是 created_at: "2013-10-24 03:32:11" 这个样子，搜索时也要按这个格式输入，否则无结果输出。但是我想使用 10-24 由月 - 日格式的方式搜索，这个怎么改呢？第一次发贴提问，不知道有没有说明白，还望各位前辈大神指点。