本文介绍了ActiveRecord的:: AdapterNotSpecified数据库配置不指定适配器的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
当我使用Heroku的打开我的web应用程序工作正常,但当我用钢轨S(本地)我遇到了这个错误:
的ActiveRecord :: AdapterNotSpecified数据库配置不指定适配器
这是为什么?
这是我的database.yml
#PostgreSQL的。版本8.2及以上的支持。
#
#安装PG驱动程序:
#创业板安装PG
#在与自制OS X:
#创业板安装PG - --with-PG-配置=在/ usr / local / bin目录/ pg_config
#在与MacPorts的OS X:
#创业板安装PG - --with-PG-配置= /选择/ local / lib目录/ postgresql84 /斌/ pg_config
#在Windows上:
#创业板安装PG
#选择在Win32版本。
#安装PostgreSQL,并把它的/ bin目录的路径。
#
#配置使用的Gemfile
#宝石PG
#
默认:放大器;默认
适配器:PostgreSQL的
编码:UNI code
#有关连接池的详细信息,请参阅导轨配置指南
#http://guides.rubyonrails.org/configuring.html#database-pooling
池:5
这是我的Gemfile:
来源https://rubygems.org
创业板PG
创业板自举 - 萨斯,GT〜&; 3.1.1
#捆绑边缘轨道,而不是:创业板轨,github上:导轨/导轨
创业板导轨,4.0.3
#使用SCSS的样式表
创业板上海社会科学院护栏,GT〜&; 4.0.0
#使用Uglifier作为COM pressor对JavaScript资产
创业板uglifier','> = 1.3.0'
#使用的CoffeeScript的.js.coffee资产和意见
创业板咖啡轨,GT〜&; 4.0.0
#见https://github.com/sstephenson/execjs#readme更多的支持运行时
#创业板therubyracer',平台:红宝石
#使用jQuery的JavaScript库
创业板的jQuery护栏
#Turbolinks使得Web应用程序以下链接速度更快。了解更多:https://github.com/rails/turbolinks
创业板turbolinks
#构建JSON API的轻松。了解更多:https://github.com/rails/jbuilder
创业板的JBuilder,GT〜&; 1.2
组:DOC做
#捆绑EXEC耙DOC:导轨产生下DOC / API的API。
创业板SDOC,要求:假的
结束
组:生产做
创业板rails_12factor,0.0.2
结束
#使用加载ActiveModel has_secure_password
#创业板bcrypt-红宝石','〜> 3.1.2
#使用麒麟作为应用服务器
#宝石'麒麟'
#使用Capistrano的部署
#创业板Capistrano的,群:发展
#使用调试器
#宝石调试,群:[:开发:测试]
解决方案
有关您的应用程序在本地工作,你需要:
- 你的机器上安装PostgreSQL
- 创建一个数据库为您的发展需要(我们称之为
my_app_development
) -
更改
的database.yml
来:默认:放大器;默认 适配器:PostgreSQL的 编码:UNI code #有关连接池的详细信息,请参阅导轨配置指南 #http://guides.rubyonrails.org/configuring.html#database-pooling 池:5 发展: <<:*默认 数据库:my_app_development
-
运行
耙分贝:迁移
When I use heroku open my web app works fine but when I'm using rails s (localhost) I am running into this error:
ActiveRecord::AdapterNotSpecified database configuration does not specify adapter
Why is this?
This is my database.yml
# PostgreSQL. Versions 8.2 and up are supported.
#
# Install the pg driver:
# gem install pg
# On OS X with Homebrew:
# gem install pg -- --with-pg-config=/usr/local/bin/pg_config
# On OS X with MacPorts:
# gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
# On Windows:
# gem install pg
# Choose the win32 build.
# Install PostgreSQL and put its /bin directory on your path.
#
# Configure Using Gemfile
# gem 'pg'
#
default: &default
adapter: postgresql
encoding: unicode
# For details on connection pooling, see rails configuration guide
# http://guides.rubyonrails.org/configuring.html#database-pooling
pool: 5
And this is my gemfile:
source 'https://rubygems.org'
gem 'pg'
gem 'bootstrap-sass', '~> 3.1.1'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.3'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 1.2'
group :doc do
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', require: false
end
group :production do
gem 'rails_12factor', '0.0.2'
end
# Use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.1.2'
# Use unicorn as the app server
# gem 'unicorn'
# Use Capistrano for deployment
# gem 'capistrano', group: :development
# Use debugger
# gem 'debugger', group: [:development, :test]
解决方案
For you app to work locally you need to:
- Install Postgresql on your machine
- Create a database for your development needs (let's call it
my_app_development
) Change your
database.yml
to:default: &default adapter: postgresql encoding: unicode # For details on connection pooling, see rails configuration guide # http://guides.rubyonrails.org/configuring.html#database-pooling pool: 5 development: <<: *default database: my_app_development
run
rake db:migrate
这篇关于ActiveRecord的:: AdapterNotSpecified数据库配置不指定适配器的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!