登录Rails应用 [英] logging in rails app
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问题描述
log4r是正确登录Rails应用程序(日期时间,严重性,通知等?)的好选择吗?还是还有其他东西?
Is log4r a good option for proper logging in rails app (date time, severity, notification etc?) or is there something else out there?
推荐答案
将其放入ruby文件中,将该文件放在/lib文件夹(Convention)中,并从您的环境中获取".
Put this into a ruby file , put the file the /lib folder (Convention) and 'require' it from your environment.
require 'active_support'
# Logger class for custom logging format
class CustomLogger < ActiveSupport::BufferedLogger
private
# CustomLogger doesn't define strings for log levels
# so we have to do it ourselves
def severity_string(level)
case level
when DEBUG
:DEBUG
when INFO
:INFO
when WARN
:WARN
when ERROR
:ERROR
when FATAL
:FATAL
else
:UNKNOWN
end
end
public
# monkey patch the CustomLogger add method so that
# we can format the log messages the way we want
def add(severity, message = nil, progname = nil, &block)
return if @level > severity
message = (message || (block && block.call) || progname).to_s
# If a newline is necessary then create a new message ending with a newline.
# Ensures that the original message is not mutated.
message = "[%5s %s] %s\n" % [severity_string(severity),
Time.now.strftime("%d-%m-%Y %H:%M:%S"),
message] unless message[-1] == ?\n
buffer << message
auto_flush
message
end
end
这些行在您的环境中的初始化块内.
And these lines in your environment inside the initializer block.
config.log_level = ENV['RAILS_ENV']=='development' ?
ActiveSupport::BufferedLogger::Severity::INFO :
ActiveSupport::BufferedLogger::Severity::DEBUG
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