小编Coj*_*nes的帖子

你们中的任何人都设法让Carrierwave的Active Admin工作吗？

当我安装AA时,一切正常,但图像文件上传字段是纯文本字段,因此添加如下:

ActiveAdmin.register Club do
  form do |f|
    f.inputs "Club" do
      f.input :league
      f.input :name
      f.input :image, :as => :file
      f.input :approved
    end
    f.buttons
  end
end

现在它显示为文件上传字段,我可以选择一个文件,但在我提交表单后没有任何改变.仍然没有图像,图像字段为空.任何人都知道还有什么可以让它工作？

有没有办法只使用

http_basic_authenticate_with :name => 'user', :password => 'secret'

当服务器在生产模式下运行时？

有什么办法可以将HTML转换为正确的纯文本吗？我尝试了从raw到sanitize的所有东西,甚至还有使用text_part方法的Mail gem,它本应该做到这一点,但对我来说不起作用.

到目前为止,我最好的射门是,strip_tags(strip_links(resource.body))但等等没有正确转换.<p><ul>

这或多或少是我在HTML中的含义:

Hello

This is some text. Blah blah blah.

Address:
John Doe
10 ABC Street
Whatever City

New Features
- Feature A
- Feature B
- Feature C
Check this out: http://www.google.com

Best,
Admin

转换成类似的东西

Hello
This is some text. Blah blah blah.
Address: John Doe 10 ABC Street Whatever City

New Features Feature A Feature B Feature C
Check this out: http://www.google.com

Best, Admin

任何的想法？

我在很长一段时间运行后,Debian服务器和升级的所有软件包(apt-get update,apt-get upgrade,apt-get distro-upgrade).然后rmagick不再工作了因为imagemagick被更新了.

所以我跑了:

gem uninstall rmagick
bundle install

然后我得到了这个:

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

    /usr/local/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... no
Can't install RMagick 0.0.0. Can't find Magick-config in /usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games

*** 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 …

几天前我让brew更新我所有的配方师,但这次mysqld没有重新开始.

这是错误消息:

2016-03-22T13:58:22.515719Z 0 [ERROR] Fatal error: mysql.user table is damaged. Please run mysql_upgrade.
2016-03-22T13:58:22.515819Z 0 [ERROR] Aborting

但由于我无法启动服务器,我无法运行mysql_upgrade:

mysql_upgrade: Got error: 2013: Lost connection to MySQL server at 'reading initial communication packet', system error: 102 while connecting to the MySQL server
Upgrade process encountered error and will not continue.

那么我该怎样做才能让它重新开始呢？会brew uninstall mysql以任何方式重新安装帮助吗？

我在Rails 3.1.3中创建了一个新引擎,显然有一个rake任务可以复制所有迁移.我试过以下rake abc:install:migrations扔了:

rake aborted!
Don't know how to build task 'abc:install:migrations'

(See full trace by running task with --trace)

我也试过rake abc_engine:install:migrations了同样的结果.

然后我读bundle exec rake railties:install:migrations或bundle exec rake railties:install:migrations FROM=abc_engine应该做的伎俩,但没有成功.即使没有抛出任何错误,也没有复制任何内容.

我的迁移位于引擎文件夹中的db/migrate /中,我从spec/dummy /运行上面的所有命令

有谁知道如何使用这个新的rake任务来从引擎复制迁移？

我今天尝试使用RVM安装Ruby 2,但它失败了.我更新了RVM,我所有的酿造配方和诸如此类的东西.这就是我得到的:

admin:/$ rvm install ruby-2.0.0-p0
Searching for binary rubies, this might take some time.
No binary rubies available for: osx/10.8/x86_64/ruby-2.0.0-p0.
Continuing with compilation. Please read 'rvm mount' to get more information on binary rubies.
Installing requirements for osx, might require sudo password.
Already up-to-date.
Certificates in '/usr/local/etc/openssl/cert.pem' already are up to date.
Installing Ruby from source to: /Users/admin/.rvm/rubies/ruby-2.0.0-p0, this may take a while depending on your cpu(s)...
ruby-2.0.0-p0 - #downloading ruby-2.0.0-p0, this may take a while depending on your …

我正在努力完成一个相当容易的任务,它有一个非负整数数组,我需要返回最近的距离.

阵: arr = [8, 24, 3, 20, 1, 17]

解决方案:2,arr[2]-arr[4]

到目前为止,我只设法写了一个O(n ^ 2)解决方案,这显然不够好:

def smallest_distance(a)
  result = nil
  a.each_with_index do |item1, index1|
    a.each_with_index do |item2, index2|
      next if index1 == index2
      temp = (item1 - item2) >= 0 ? item1 - item2 : item2 - item1
      result = temp if result.nil? || temp < result
    end
  end
  result
end

关于如何改进这个的任何想法？

我正在尝试访问我的RSpec测试中的夹具数据,但似乎没有加载任何.

spec_helper.rb

config.fixture_path = "#{::Rails.root}/db/fixtures"
config.use_transactional_fixtures = true
config.global_fixtures = :all

这是我的一个装置:

cash:
  name: cash
  interest: 1
  term: <%= Time.now.to_s :db %>

现在测试正在创建一个具有after_create回调的用户:

ft = FundType.find_by_name("cash")
Fund.create(fund_type_id: ft.id, amount: 1000) <--- this is where the error occurs

错误:

Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id>

有任何想法吗？

我试图用rspec获得回溯,但由于某种原因我不能让它工作.

这是测试文件:

require 'spec_helper'

describe ActivityReport do
  it "should create a new instance given valid attributes" do
  activity = Factory(:activity_report)
end

这是我运行的命令:

rspec --backtrace spec/models/activity_report_spec.rb

这就是我得到的:

No examples matched {:focus=>true}. Running all.

ActivityReport
  should create a new instance given valid attributes (FAILED - 1)

Failures:

  1) ActivityReport should create a new instance given valid attributes
     Failure/Error: Unable to find matching line from backtrace
     SystemStackError:
       stack level too deep
     # /Users/pbartels/.rvm/gems/ruby-1.9.2-p290@brothelking/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:206

Finished in 40.76 seconds
1 example, 1 failure

Failed examples: …

我正在从许多不同的来源导出CSV，这使得在将其放入CSV之前很难进行排序。

csv = CSV.generate col_sep: '#' do |csv|
  ... adding a few columns here
end

现在，如果我能够按第二列对CSV进行排序，那就太好了。有可能吗？