mysql – rake db:仅创建创建开发数据库
作者:互联网
我正在开始一个新的rails 3应用程序,当我运行rake db:创建它请求我的root mysql密码然后出错说:
Mysql2::Error: Access denied for user ‘arcsite_mysql’@’localhost’ to database ‘arcsite_mysql_test’: CREATE DATABASE
arcsite_mysql_test
DEFAULT CHARACTER SETutf8
COLLATEutf8_unicode_ci
如果我在命令行登录mysql并运行show databases;我看到了这个:
arcsite_mysql_development
如果我为arcsite_mysql @ localhost运行SHOW GRANTS,我会看到:
GRANT ALL PRIVILEGES ON `arcsite_mysql_development`.* TO 'arcsite_mysql'@'localhost' WITH GRANT OPTION
我的database.yml:
# MySQL. Versions 4.1 and 5.0 are recommended.
#
# Install the MYSQL driver
# gem install mysql2
#
# Ensure the MySQL gem is defined in your Gemfile
# gem 'mysql2'
#
# And be sure to use new-style password hashing:
# http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: arcsite_mysql_development
pool: 5
username: arcsite_mysql
password: password
host: localhost
# 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 or production.
test:
adapter: mysql2
encoding: utf8
reconnect: false
database: arcsite_mysql_test
pool: 5
username: arcsite_mysql
password: password
host: localhost
因此,出于某种原因,只创建了开发数据库.
版本:
Rails 3.2.13
MySQL:服务器版本:5.6.10源代码分发
mysql2:mysql2-0.3.11
编辑
如果我手动授予arcsite_mysql用户所有权限,我可以创建表.但是,预计Rails会为开发而不是测试环境创建用户和表吗?当我第一次运行rake db:create命令时,arcsite_mysql用户是由rails创建的.
编辑2
提到了一些涉及mysql用户创建的“众所周知”的过程.
解决方法:
您需要在MySQL中授予对此用户的访问权限:
GRANT ALL ON *.* TO 'arcsite_mysql'@'localhost' IDENTIFIED BY 'password';
Rails不会在MySQL中创建用户它只使用存在的用户,这就是为什么在生成database.yml时会得到类似的东西:
development:
adapter: mysql2
encoding: utf8
database: blog_development
pool: 5
username: root
password:
socket: /tmp/mysql.sock
Rails假定root用户存在并且在MySQL中具有适当的权限(因为root拥有它所做的一切),如果没有,你必须创建它(如果使用MySQL,这将提示你输入root密码来创建用户,如果它不存在)或者将其更改为.供参考:http://guides.rubyonrails.org/getting_started.html#configuring-a-database第3.3.2节
标签:mysql,ruby-on-rails,rake,mysql2 来源: https://codeday.me/bug/20190620/1244353.html