标签: ruby-on-rails-4

我是Rails 4的新手,并且不理解在Rails 4中使用secret_key_baseunder config/secrets.yml.你能解释一下这个概念吗？

此外,当我在生产环境中我的工作,我提示设置secret_key有devise.rb,config.secret_key和secret_key_base.但是,我可以使用该rake secret命令生成一个新秘密.

开发和生产环境有什么区别？

secret_key当我secret_key_base每次生成时添加它时,它是如何匹配新生成的？

如何使用其他服务器保护应用程序？

我已经浏览了许多SO和google帖子来生成has many and belongs to many关联的连接表的迁移,没有任何工作.

所有解决方案都生成一个空的迁移文件.

我正在使用rails 3.2.13,我有两张桌子:security_users和assignments.这些是我尝试过的一些事情:

rails generate migration assignments_security_users

rails generate migration create_assignments_security_users

rails generate migration create_assignments_security_users_join_table

rails g migration create_join_table :products, :categories (following the official documentation)

rails generate migration security_users_assignments security_user:belongs_to assignments:belongs_to 

任何人都可以告诉如何在两个表之间创建连接表迁移吗？

我正在尝试关注Ryan Bates RailsCast#196:嵌套模型表单第1部分.Ryans版本有两个明显的区别:1)我正在使用内置脚手架而不是他正在使用的漂亮,2)我正在运行rails 4(我真的不知道Ryans在他的演员阵容中使用的是什么版本,但它不是4).

所以这就是我做的

rails new survey2
cd survey2
bundle install
rails generate scaffold survey name:string
rake db:migrate
rails generate model question survey_id:integer content:text
rake db:migrate

然后我将关联添加到模型中

class Question < ActiveRecord::Base
  belongs_to :survey
end

所以

class Survey < ActiveRecord::Base
  has_many :questions
  accepts_nested_attributes_for :questions
end

然后我添加了嵌套视图部分

<%= form_for(@survey) do |f| %>
  <!-- Standard rails 4 view stuff -->

  <div class="field">
    <%= f.label :name %><br>
    <%= f.text_field :name %>
  </div>
  <div class="field">
    <%= f.fields_for :questions do |builder| %>
      <div>
        <%= …

我试图安装一个使用mysql2gem的开源rails 3.2.21应用程序,但是当我尝试运行bundlecommant时,我收到以下错误:

Fetching: mysql2-0.3.18.gem (100%)
Building native extensions.  This could take a while...
p
ERROR:  Error installing mysql2:
    ERROR: Failed to build gem native extension.

    /Users/my_username/.rvm/rubies/ruby-2.1.2/bin/ruby -r ./siteconf20150614-72129-orqsb7.rb extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /usr/local/bin/mysql_config
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
-----
Don't know …

database.yml的:

# SQLite version 3.x
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
development:
  adapter: postgresql
  encoding: utf8
  database: sampleapp_dev  #can be anything unique
  #host: localhost
  #username: 7stud
  #password: 

  #adapter: sqlite3
  #database: db/development.sqlite3
  pool: 5
  timeout: 5000

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development …

我有一个Rails 4应用程序,我正在尝试使用自定义字体.

我已经关注了很多关于这方面的教程,不知何故它只是不适用于我的应用程序.

我正在使用application.css.less并有以下声明:

@font-face {
    font-family: 'HDVPeace';
    src: font-url('HDV_Peace.eot');
    src: font-url('HDV_Peace.eot?iefix') format('eot'),
        font-url('HDV_Peace.woff') format('woff'),
        font-url('HDV_Peace.ttf') format('truetype'),
        font-url('HDV_Peace.svg#webfont') format('svg');
}

注意:我尝试过使用 url() 而不是 font-url() .前者在控制台上生成404错误,后者似乎根本不做任何事情.在资源下的chrome dev工具中,字体文件不会出现在 文件夹下assets 或任何位置

在我的config/application.rb身上:

config.assets.paths << Rails.root.join('app', 'assets', 'fonts')

在我config/environments/development.rb和config/environments/production.rb我都有:

config.assets.paths << Rails.root.join('app', 'assets', 'fonts')
config.assets.precompile += %w( .svg .eot .woff .ttf)

我的字体文件位于app/assets/fonts以下文件夹中,并且不包含在...

我错过了什么？

更新:

文件夹结构

app
 |----assets
        |----fonts
               |----HDV_Peace.eot
               |----HDV_Peace.svg
               |----HDV_Peace.ttf
               |----HDV_Peace.woff

因此,在Rails 4中not添加了使用查询的长期所需功能.

Article.where.not(title: 'Rails 3')

是否为or查询添加了类似的支持,或者他们是否计划进行查询.浏览发行说明我找不到任何东西.

显然我试过了

Article.where(title: 'Rails 3').or(title: 'Rails 4')

但这不起作用.

rails plugin install git://github.com/get/Rename.git 将允许我们只重命名rails 3应用程序

是否有任何宝石可用于重命名Rails 4应用程序.

如果没有,建议我更好的重命名方式.

Hi I am using Devise for my user authentication suddenly my new user registration was not working.

this was error I am getting.

ActionController::InvalidAuthenticityToken

Rails.root: /home/example/app
Application Trace | Framework Trace | Full Trace

Request

Parameters:

{"utf8"=>"?",
 "user"=>{"email"=>"example@gmail.com",
 "password"=>"[FILTERED]",
 "password_confirmation"=>"[FILTERED]"},
 "x"=>"0",
 "y"=>"0"}

this is my registrations controller

class RegistrationsController < Devise::RegistrationsController
  prepend_before_filter :require_no_authentication, :only => [ :new, :create, :cancel ]
  prepend_before_filter :authenticate_scope!, :only => [:edit, :update, :destroy]

  before_filter :configure_permitted_parameters

  prepend_view_path 'app/views/devise'

  # GET /resource/sign_up
  def new
    build_resource({})
    respond_with self.resource
  end …

我想知道如何在运行简单的测试时关闭所有这些警告:

[1] guard(main)> 
16:59:46 - INFO - Run all
16:59:46 - INFO - Running all specs
/Users/esjd/.rvm/gems/ruby-2.1.2/gems/rspec-rails-3.0.1/lib/rspec/rails/adapters.rb:124: warning: instance variable @example not initialized
/Users/esjd/.rvm/gems/ruby-2.1.2/gems/rspec-rails-3.0.1/lib/rspec/rails/adapters.rb:124: warning: instance variable @example not initialized
.*

Pending:
  HomeHelper add some examples to (or delete) /Users/esjd/ruby/rails/ts3/spec/helpers/home_helper_spec.rb
    # Not yet implemented
    # ./spec/helpers/home_helper_spec.rb:14

Finished in 0.03601 seconds (files took 7 minutes 48 seconds to load)
2 examples, 0 failures, 1 pending
/Users/esjd/.rvm/gems/ruby-2.1.2/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:76: warning: global variable `$CELLULOID_DEBUG' not initialized
/Users/esjd/.rvm/gems/ruby-2.1.2/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:76: warning: global variable `$CELLULOID_DEBUG' not initialized

/Users/esjd/.rvm/gems/ruby-2.1.2/gems/guard-2.6.1/lib/guard/interactor.rb:64: warning: …