cd /home/virus
rails new blog
cd blog
rails server
rails server --environment=production
rails s -e=production
rails s -p 8000
#测试环境,启动console
rails console
#生产环境,启动console
rails console production
执行rails console之后,使用development环境启动,所做的修改会映射到数据库
如果你不想这些操作映射到数据库,你可以执行
rails console—sandbox
通过上面的命令进入console,对数据库做的操作,会在退出之后回滚。
rails db:create
rails db:create RAILS_ENV=production
rails db:migrate
rails db:migrate RAILS_ENV=production
rails generate scaffold Product title:string price:decimal description:text
rails generate controller Persons
rails generate model Order product_snapshot_id:integer qty:integer product:references
rails generate migration ProductAddProductNoColumn
rake db:rollback
#用config/database.yml中production配置创建数据库
rake db:create RAILS_ENV=production
#用config/database.yml中production配置迁移数据库
rake db:migrate RAILS_ENV=production
#启动rails自带的web服务器,加载config/environments/production.rb 中的配置信息
rails server --environment=production
#在开发环境,如果访问的资源还没有编译,就重新编译,默认值是false,如果不设置为true,
#在生产环境会报错,提示资源没有编译,ActionView::Template::Error (***.css isn’t # precompiled)。
#在开发环境不用设置,因为开发环境总是先编译。
# config/environments/production.rb
...
config.assets.compile = true
编译资源文件。
bundle exec rake assets:precompile
列出所有的route信息
rake routes
不使用rails自带的单元测试框架
Gamfile
source 'https://rubygems.org'
gem 'rails', '3.2.8'
group :development, :test do
gem 'sqlite3', '1.3.5'
gem 'rspec-rails', '2.11.0'
end
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '3.2.5'
gem 'coffee-rails', '3.2.2'
gem 'uglifier', '1.2.3'
gem 'jquery-rails', '2.0.2'
group :test do
gem 'capybara', '1.1.2'
group :production do
gem 'pg', '0.12.2'
配置rails使用RSpec替代自带的测试框架
rails generate rspec:install
rspec spec/request/*.rb
为测试环境生成数据库
This just ensures that the data model from the development database, <code>db/development.sqlite3</code>, is reflected in the test database, <code>db/test.sqlite3</code>.
rake db:test:prepare
Model.method
where
select
group
order
reorder
reverse_order
limit
offset
joins
includes
lock
readonly
from
having
本文转自 virusswb 51CTO博客,原文链接:http://blog.51cto.com/virusswb/1037125,如需转载请自行联系原作者