1. Write Console Methods
在~/.irbrc定义ActvieRecord::Base.connection.select_all方法
1.# ~/.railsrc
2.def sql(query)
3.ActiveRecord::Base.connection.select_all(query)
4.end
1.# ~/.irbrc
2.if ENV['RAILS_ENV']
3.load File.dirname(__FILE__) + '/.railsrc'
4.end
这样就可以在直接在script/console下面执行sql查询
1.$ script/console
2.>> sql 'show databases'
2. Log to the console
ActiveRecord Logger
01.# ~/.railsrc
02.def loud_logger
03.set_logger_to Logger.new(STDOUT)
04.end
05.
06.def quiet_logger
07.set_logger_to nil
08.end
09.
10.def set_logger_to(logger)
11.ActiveRecord::Base.logger = logger
12.ActiveRecord::Base.clear_active_connections!
13.end
ActionPack Logger
1.# ~/.railsrc
2.require 'logger'
3.Object.const_set(:RAILS_DEFAULT_LOGGER, Logger.new(STDOUT))
3. Play in the Sandbox
使用sandbox参数来启动script/console
1.script/console --sandbox
这样所有的数据库修改都会在退出console时被恢复
4. Access Helpers
直接调用helper方法
1.helper.pluralize(3, 'blind mouse')
调用自定义的helper方法
1.helper.extends BlogsHelper
2.helper.archive_dates