module ActiveSupport::TaggedLogging
Wraps any standard Logger
object to provide tagging capabilities.
logger = ActiveSupport::TaggedLogging.new(Logger.new(STDOUT)) logger.tagged('BCX') { logger.info 'Stuff' } # Logs "[BCX] Stuff" logger.tagged('BCX', "Jason") { logger.info 'Stuff' } # Logs "[BCX] [Jason] Stuff" logger.tagged('BCX') { logger.tagged('Jason') { logger.info 'Stuff' } } # Logs "[BCX] [Jason] Stuff"
This is used by the default Quails.logger
as configured by Railties to make it easy to stamp log lines with subdomains, request ids, and anything else to aid debugging of multi-user production applications.
Public Class Methods
new(logger)
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# File activesupport/lib/active_support/tagged_logging.rb, line 61 def self.new(logger) # Ensure we set a default formatter so we aren't extending nil! logger.formatter ||= ActiveSupport::Logger::SimpleFormatter.new logger.formatter.extend Formatter logger.extend(self) end
Public Instance Methods
flush()
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Calls superclass method
# File activesupport/lib/active_support/tagged_logging.rb, line 74 def flush clear_tags! super if defined?(super) end
tagged(*tags) { |self| ... }
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# File activesupport/lib/active_support/tagged_logging.rb, line 70 def tagged(*tags) formatter.tagged(*tags) { yield self } end