rails 兴趣教程

2015-06-22

1. 汇总gem文件

-gemfile添加：

gem "rails-i18n"
gem "devise"
gem "devise-i18n"
gem "cancancan"
gem "rolify"
gem "rails_admin"
gem "rails_admin-i18n"
gem "rails_kindeditor"
gem "twitter-bootstrap-rails"
gem "twitter-bootswatch-rails"
gem "twitter-bootswatch-rails-helpers

bootswatch在windows下依赖v8，麻烦多，可不用
gem "simple_form"
gem "slim-rails"
gem "sidekiq" 需要单独安装redis
gem 'coffee-script-source', '1.8.0'
规避1.9版本在windowns下的bug

2. 安装

gem update --system
gem update --no-ri --no-rdoc
gem install rails --no-ri --no-rdoc
for %i in (
rails-i18n
sqlite3
turbolinks
tzinfo-data
uglifier
web-console
devise
devise-i18n
cancancan
rolify
rails_admin
rails_admin-i18n
rails_kindeditor
twitter-bootstrap-rails
twitter-bootswatch-rails
twitter-bootswatch-rails-helpers
simple_form
slim-rails
sidekiq
) do (
gem install %i --no-ri --no-rdoc
)

rails new om

3. 手工补充

application.rb增加：

config.generators do |g|
  g.template_engine :slim
end
config.i18n.load_path += Dir[Rails.root.join('config', 'locales', '**', '*.{rb,yml}').to_s]
config.i18n.default_locale = :'zh-CN'

增加文件：zh-CN.yml

样例见后面

模型设计：

system {
name  系统名
short 英文缩写
env 环境类型（开发、测试、生产）
desc:text
}
rails g scaffold system name short env desc:text
rake db:migrate RAILS_ENV=development

修改route：

root 'systems#index'

4. 启动

rails g simple_form:install --bootstrap
rails g bootstrap:install static --no-coffeescript
rails g bootstrap:themed systems -f
rails g devise:install
rails g devise User
rails g devise:views
rails g cancan:ability
rails g rolify Role User
rails g rails_admin:install
rake db:migrate RAILS_ENV=development
rails s

5. 富文本编辑器kindeditor

在需要rich edit的地方加上", :as => :kindeditor", 
在跳转到form可能用到rich edit的地方加上（一般index和show的new和edit需要加）, 如：
link_to t('.edit', :default => t("helpers.links.edit")), edit_system_path(system), :class => 'btn btn-default btn-xs', 'data-no-turbolink' => true
'data-no-turbolink' => true或者:'data-no-turbolink' => true都可以，如果带有符号的需要加单引号

6. 登录

application_controller.rb增加：

before_action :authenticate_user!

def after_sign_in_path_for(resource)
  if resource.is_a?(User)
    if User.count == 1
      resource.add_role 'admin'
    end
    resource
  end
  root_path
end

application.html.erb增加：

<% if current_user %>
  <%= current_user.email %> |
  <%= link_to('退出', destroy_user_session_path, :method => :delete) %> |
  <%= link_to('修改密码', edit_registration_path(:user)) %>
<% else %>
  <%= link_to('注册', new_registration_path(:user)) %> |
  <%= link_to('登录', new_session_path(:user)) %>
<% end %><span></span>
<p class="notice"><%= notice %></p>  <p class="alert"><%= alert %></p>

xxcontroller.rb增加：

load_and_authorize_resource

index.html.slim和show.html.slim修改：

- if can? :update, System
  = link_to t('.edit'xxx

- if can? :destroy, System
  = link_to t('.destroy'xxx

- if can? :create, System
  = link_to t('.new'xxx

ability.rb修改（可自定义）：

can :read, :all
if user.has_role? :admin
  can :access, :rails_admin
  can :dashboard
  can :manage, :all
else
   can :read, :all
end

rails_admin.rb添加：

config.authorize_with do
  redirect_to '/' unless current_user.has_role? :admin
end

在application_controller.rb增加如下函数

def set_locale 
  I18n.locale = params[:locale] || I18n.default_locale 
end 
然后在before_action里调用

7. 富文本编辑器的另外一个选择

gem 'ckeditor'
gem 'paperclip'
rails g ckeditor:install --orm=active_record --backend=paperclip

gem 'carrierwave'
gem 'mini_magick'
rails g ckeditor:install --orm=active_record --backend=carrierwave

gem 'dragonfly'
rails g ckeditor:install --orm=active_record --backend=dragonfly

gem 'mongoid-paperclip', :require => 'mongoid_paperclip'
rails g ckeditor:install --orm=mongoid --backend=paperclip

gem 'carrierwave-mongoid', :require => 'carrierwave/mongoid'
gem 'mini_magick'
rails g ckeditor:install --orm=mongoid --backend=carrierwave

application.rb添加:

config.autoload_paths += %W(#{config.root}/app/models/ckeditor)

config/routes.rb添加:

mount Ckeditor::Engine => '/ckeditor'

app/assets/javascripts/application.js添加:

//= require ckeditor/init

config/initializers/assets.rb添加:

Rails.application.config.assets.precompile += %w( ckeditor/* )

Form helpers:

<%= form_for @page do |form| -%>
  <%= form.cktext_area :notes, :class => 'someclass',
    :ckeditor => {:language => 'uk'} %>
  <%= form.cktext_area :content, :value => 'Default value',
    :id => 'sometext' %>
  <%= cktext_area :page, :info, :cols => 40,
    :ckeditor => {:uiColor => '#AADC6E', :toolbar => 'mini'} %>
<% end -%>

8. 其他插件

gem 'formtastic'
rails g formtastic:install

9.zh-CN.yml样例

zh-CN:
  hello: "Hello world"
  activerecord:
    models:
      system:
        one: '系统'
        other: '系统'
      user:
        one: '用户'
        other: '用户'
      role:
        one: '角色'
        other: '角色'
    attributes:
      system:
        id: '系统ID'
        name: '系统名'
        short: '英文缩写'
        env: '环境类型'
        desc: '系统信息'
        created_at: '系统录入时间'
        updated_at: '系统更新时间'
      user:
        id: '用户ID'
        email: '邮箱'
        reset_password_sent_at: '重置密码送时间'
        remember_created_at: '记住密码创建时间'
        sign_in_count: '登陆数'
        current_sign_in_at: '当前登陆时间'
        last_sign_in_at: '上次登陆时间'
        current_sign_in_ip: '当前登录IP'
        last_sign_in_ip: '上次登陆IP'
        created_at: '创建时间'
        updated_at: '修改时间'
        roles: '所属角色'
        password: '密码'
        password_confirmation: '密码确认'
        reset_password_token: '密码重置Token'
      role:
        id: '角色ID'
        name: '角色名'
        created_at: '创建时间'
        updated_at: '更新时间'
        users: '用户列表'
  helpers:
    actions: '操作'
    titles:
      edit: '编辑%{model}'
      new: '新增%{model}'
      destroy: '删除%{model}'
    links:
      new: '新增'
      edit: '编辑'
      confirm: '是否确认？'
      destroy: '删除'
      cancel: '取消'
      back: '返回'
  admin:
    js: 'js脚本'
    loading: '加载中'
    toggle_navigation: '切换导航'
    export:

      select_all_fields: '选择所有字段'

Beautiful

Something never changes, but something does.