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如何在 Ruby 中获取随机数
ruby-on-rails
ruby
ruby-on-rails-3
ruby-on-rails-4
random
如何在 Rails 4 中使用关注点
ruby-on-rails
ruby-on-rails-4
dci
Rails 4:可用数据类型列表
ruby-on-rails
ruby
ruby-on-rails-4
rails-activerecord
Rails 4:如何将 $(document).ready() 与 turbo-links 一起使用
javascript
jquery
ruby-on-rails-4
asset-pipeline
turbolinks
Rails update_attributes 没有保存?
ruby-on-rails
ruby
ruby-on-rails-3
ruby-on-rails-4
rails-activerecord
Rails I18n 验证弃用警告
ruby-on-rails
ruby
ruby-on-rails-4
deprecated
rails-i18n
Rails 4:before_filter 与 before_action
ruby-on-rails
ruby
ruby-on-rails-4
crud
在 Rails 4 中添加引用列迁移
ruby-on-rails
ruby-on-rails-4
foreign-keys
rails-activerecord
rails-migrations
在 Rails 4 中如何使用 attr_accessible?
ruby-on-rails
ruby-on-rails-4
在 Rails 4 中自动加载 lib 文件
ruby-on-rails
ruby-on-rails-4
Rails 4 中的 Paperclip::Errors::MissingRequiredValidatorError
ruby-on-rails
ruby
ruby-on-rails-4
paperclip
Rails:如何在 Rails 4 中引用 CSS 中的图像
ruby-on-rails
heroku
ruby-on-rails-4
Rails 4 真实性令牌
ruby-on-rails
ruby
ruby-on-rails-4
authenticity-token
确定 Rails after_save 回调中更改了哪些属性?
ruby-on-rails
ruby-on-rails-4
model
callback
observer-pattern
在 Rails 4 中,`params.require(:person).permit(:name, :age)` 是做什么的?
ruby-on-rails-4
Rails:验证两列的唯一性(一起)
ruby-on-rails
ruby-on-rails-3
ruby-on-rails-4
activerecord
rails-activerecord
如何解决错误“‘生产’环境缺少‘secret_key_base’”(Rails 4.1)
ruby-on-rails
ruby
heroku
ruby-on-rails-4
解码下载字体失败,OTS解析错误:无效版本标签+rails 4
css
asset-pipeline
ruby-on-rails-4.1
custom-font
Rails Observer 4.0 的替代品
ruby-on-rails
ruby-on-rails-4
xxx 的副本已从模块树中删除,但仍处于活动状态
ruby-on-rails
ruby
ruby-on-rails-4
Rails 4 - Gem :: LoadError:为数据库适配器指定'mysql2',但未加载gem
ruby-on-rails
ruby-on-rails-4
ruby-on-rails-4.1
mysql2
ruby-on-rails-4.2
Rails 4风格的lambda和参数范围?
ruby-on-rails-4
scope
rails-activerecord
无法加载此类文件 -- 捆绑器/设置 (LoadError)
rubygems
ruby-on-rails-4
passenger
ruby-2.0
服务器是否在主机“localhost”(::1) 上运行并接受端口 5432 上的 TCP/IP 连接?
ruby-on-rails
ruby
postgresql
ruby-on-rails-3
ruby-on-rails-4
嵌套属性不允许的参数
ruby-on-rails
ruby-on-rails-4
Rails 4:资产未在生产中加载
ruby-on-rails
ruby
asset-pipeline
ruby-on-rails-4
如何从 Rails 中的枚举中获取整数值?
ruby-on-rails
ruby-on-rails-4
尝试加载 gem 'uglifier' 时出错。 (Bundler::GemRequireError)
ruby-on-rails
ruby-on-rails-4
server
禁用 Rails 4 的 ActiveRecord
ruby-on-rails
ruby
ruby-on-rails-4
在 Rails 4.1 中从选择中保存枚举
ruby-on-rails
ruby
ruby-on-rails-4
enums
Rails 4 has_many 的已弃用警告与订单
ruby-on-rails
ruby-on-rails-4
类似查询的安全 ActiveRecord
ruby
activerecord
ruby-on-rails-4
Rails 4 image-path、image-url 和 assets-url 不再在 SCSS 文件中工作
ruby-on-rails
asset-pipeline
ruby-on-rails-4
尝试使用 mysql2 gem 安装应用程序时出错
mysql
ruby-on-rails
ruby
ruby-on-rails-4
mysql2
fe_sendauth:未提供密码
postgresql
ruby-on-rails-4
为什么 Rails4 放弃了对 Gemfile 中“资产”组的支持
asset-pipeline
ruby-on-rails-4
在 Rails 4 中使用 has_many :through :uniq 时的弃用警告
ruby-on-rails
activerecord
rails-activerecord
ruby-on-rails-4
如何知道 ruby 中什么不是线程安全的?
ruby
multithreading
concurrency
thread-safety
ruby-on-rails-4
如何在 Rails 4 中覆盖控制器或动作的 X-Frame-Options
ruby-on-rails
iframe
http-headers
ruby-on-rails-4
x-frame-options
如何更改 Rails 4.2 开发服务器的默认绑定 ip?
ruby-on-rails
ruby-on-rails-4.2
Rails 与多个外键的关联
ruby-on-rails
ruby-on-rails-4
associations
model-associations
安装 pg (0.17.1) 时出错,Bundler 无法继续
ruby-on-rails
macos
postgresql
ruby-on-rails-4
Rails 4中的左外连接
sql
ruby-on-rails
ruby-on-rails-4
rails-activerecord
mysql2
Rails:如何将 i18n 与 Rails 4 枚举一起使用
ruby-on-rails-4
enums
Rails 4使用carrierwave上传多个图像或文件
ruby-on-rails-4
carrierwave
使用 Rails 4 进行主动管理员安装
activeadmin
ruby-on-rails-4
Rails 4:在没有命名空间模型的子路径中组织 Rails 模型?
ruby-on-rails
namespaces
ruby-on-rails-4
models
subdirectory
在 Rails 中,find_each 和 where 有什么区别?
ruby-on-rails
ruby
ruby-on-rails-3
ruby-on-rails-4
activerecord
'rails generate' 命令在尝试创建模型时挂起
ruby-on-rails
ruby-on-rails-4
Rails API:实现身份验证的最佳方式?
ruby-on-rails
ruby-on-rails-4
rails-api
未加载库:/usr/local/opt/readline/lib/libreadline.6.dylib (LoadError)
ruby-on-rails
ruby
ruby-on-rails-4
JQuery 仅在 Rails 4 应用程序中的页面刷新时加载
jquery
twitter-bootstrap
ruby-on-rails-4
rails 4中secret_key_base的用途是什么
ruby-on-rails
ruby
ruby-on-rails-4
ruby-on-rails-5
ruby-on-rails-6
在 Rails 4 中,不推荐使用 Model.scoped 但 Model.all 无法替换它
activerecord
ruby-on-rails-4
生成迁移 - 创建连接表
ruby-on-rails
ruby-on-rails-3
ruby-on-rails-4
migration
jointable
TZInfo::DataSourceNotFound 在 Windows 上启动 Rails v4.1.0 服务器时出错
ruby-on-rails
ruby
ruby-on-rails-4.1
tzinfo
Rails 4 默认范围
ruby-on-rails-4
default-scope
ActiveRecord OR 查询哈希表示法
ruby-on-rails
ruby-on-rails-4
activerecord
rails-activerecord
ruby-on-rails-5
Puma中的Workers和Threads有什么区别
multithreading
heroku
ruby-on-rails-4
puma
为什么 Rails 不从应用程序/服务中自动加载类?
ruby-on-rails
autoload
ruby-on-rails-4.2
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