我在 database.yml 文件中有这个数据库配置
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: oma_development
pool: 5
username: root
password:
host: localhost
test:
# same as in development section
production:
# same as in development section
development_blacklist:
adapter: mysql2
encoding: utf8
database: webstuff
username: login
password: password
host: remote-database.com
test_blacklist:
adapter: mysql2
encoding: utf8
database: webstuff
username: megas
password:
host: /var/run/mysqld/mysqld.sock
我想执行 rake 任务:
namespace :db do
namespace :schema do
desc 'Dump blacklist database schema'
task :dump => [:environment, :load_config] do
filename = "#{Rails.root}/db/blacklist_schema.rb"
File.open(filename, 'w:utf-8') do |file|
ActiveRecord::Base.establish_connection("development_blacklist")
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, file)
end
end
end
end
通过调用此命令:
rake db:schema:dump
我有错误:
rake aborted!
Access denied for user 'root'@'localhost' (using password: NO)
所以看起来 rake 任务正在尝试从development
部分连接到数据库。
我不明白为什么 rake 任务试图连接到development
数据库,而 rake 任务应该连接到development_blacklist
数据库。
如何设置 rake 任务以仅连接到development_blacklist
数据库?