小编jar*_*ine的帖子

我跑到gem update --system更新到Rubygems 1.5.0,每次运行任何bundle命令后我得到:

rvm/gems/ruby-1.8.7-p249/gems/bundler-1.0.9/lib/bundler/ui.rb:56: uninitialized constant Gem::SilentUI (NameError)

其他人遇到过这个问题吗？

我运行Cucumber和RSpec测试的rake任务总是使用我的development环境.

以下是相关的配置文件:

RAILS_ROOT/config/environments/cucumber.rb

# Edit at your own peril - it's recommended to regenerate this file
# in the future when you upgrade to a newer version of Cucumber.

# IMPORTANT: Setting config.cache_classes to false is known to
# break Cucumber's use_transactional_fixtures method.
# For more information see https://rspec.lighthouseapp.com/projects/16211/tickets/165
config.cache_classes = true

# Log error messages when you accidentally call methods on nil.
config.whiny_nils = true

# Show full error reports and disable caching
config.action_controller.consider_all_requests_local = true
config.action_controller.perform_caching …

我最近遇到了"linux stack"和"linux stack size"的错误.我遇到了一个指导我尝试的博客

ulimit -a

看看我的盒子的限制是什么,它被设置为8192kb默认值.

什么是"linux堆栈"？它是如何工作的,它存储了什么,它做了什么？

我的规格

require 'spec_helper'

describe 'user_sessions/new.html.erb' do

  let (:user_session) { mock_model(UserSession).as_null_object }

  before do
    assign(:user_session, user_session)
  end


  it 'should have the sign in header' do
    render

    rendered.should contain('Sign in')
  end

end

抛出

1)
NoMethodError in 'user_sessions/new.html.erb should have the sign in header'
undefined method `assign' for #<Spec::Rails::Example::ViewExampleGroup::Subclass_1:0x1036835e0>

宝石:

group :test, :cucumber do
  gem "cucumber-rails", "0.3.2"
  gem "rspec-rails", "1.3.3"
  gem "database_cleaner", "0.5.0"
  # gem "capybara", "0.3.9"
  gem "webrat"
  gem "selenium-client", "1.2.18"
  gem "sqlite3-ruby",  "1.3.1"
  gem "email_spec", "~> 0.6.3", :require => 'spec'
  gem …

我正在尝试为Rails ActionDispatch路由器创建一个类似的路由器,它允许您定义类似的路由

map.get "/foo", :controller => "Foo", :action => "index"

然后将路由GET /foo到FooController#index.有了这个结构,你可以使用像

map.resources :foos

这将调用像

map.get "/foo", :controller => "Foo", :action => "index"
map.get "/foo/:id", :controller => "Foo", :action => "show"

等等.

在D中,我已经能够找出使这项工作所需的许多反身代码,但不是全部.在Ruby中我可以做到:

class Foo
  def bar
    "FOOO BAR!"
  end
end

f = Object.const_get("Foo")
f.new.__send__(:bar) #=> "FOOO BAR!"

我试图翻译成

module foo;
import std.stdio;

class Foo {
  void bar() {
    writeln("FOO BAR!");
  }
}

void main() {
  auto foo = Object.factory("foo.Foo");
  __traits(getMember, foo, "bar");
}

但这不起作用,因为编译器不知道什么类型foo …

我查看了Google和StackOverflow并且无法弄清楚这一点.

我有一个使用Ruby 1.8.7的Rails 2.3.9应用程序,尝试通过SMTP发送电子邮件,如下所示:

ActionMailer::Base.delivery_method = :smtp
ActionMailer::Base.smtp_settings = {
  :address => "smtp.sendgrid.net",
  :port => '25',
  :domain => "************.com",
  :authentication => :plain,
  :user_name => "***********",
  :password => "**********"
}

我的应用程序回溯看起来像这样:

/Users/jared/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/net/smtp.rb:551:in `initialize'
/Users/jared/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/net/smtp.rb:551:in `open'
/Users/jared/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/net/smtp.rb:551:in `do_start'
/Users/jared/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/timeout.rb:67:in `timeout'
/Users/jared/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/timeout.rb:101:in `timeout'
/Users/jared/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/net/smtp.rb:551:in `do_start'
/Users/jared/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/net/smtp.rb:525:in `start'
/Users/jared/.rvm/gems/ruby-1.8.7-p334/gems/actionmailer-2.3.9/lib/action_mailer/base.rb:682:in `perform_delivery_smtp'
/Users/jared/.rvm/gems/ruby-1.8.7-p334/gems/actionmailer-2.3.9/lib/action_mailer/base.rb:523:in `__send__'
/Users/jared/.rvm/gems/ruby-1.8.7-p334/gems/actionmailer-2.3.9/lib/action_mailer/base.rb:523:in `deliver!'
/Users/jared/.rvm/gems/ruby-1.8.7-p334/gems/actionmailer-2.3.9/lib/action_mailer/base.rb:429:in `deliver'
/Users/jared/rails/********/app/models/user.rb:160:in `send_welcome_email'
/Users/jared/rails/*********/app/controllers/users_controller.rb:35:in `create'

在Ruby中,我可以轻松地在类这样的类上设置读/写属性:

class Bar
  attr_accessor :foo, :bizz, :buzz
end

这将是相同的

class Bar
  def foo
    @foo
  end

  def foo=(foo)
    @foo = foo
  end

  def bizz
    @foo
  end

  def bizz=(bizz)
    @bizz = bizz
  end

  def buzz
    @buzz
  end

  def buzz=(buzz)
    @buzz = buzz
  end
end

相同的代码是D非常冗长,我发现自己在各处重复的事情:

class Bar {
  private {
    string _foo, _bizz, _buzz;
  }

  @property {
    string foo()  { return _foo;  }
    string bizz() { return _bizz; }
    string buzz() { return _buzz; }

    void foo(string foo)   { _foo = foo; …