CGIKit User Guide

CGIKit User Guide/Deploying Applications /Debugging/Logging

Logging

Options

CKLog is a simple logging class with 5 debug levels, It writes log messages higher than setted level. The debug level is “DEBUG < INFO < WARN < ERROR < FATAL”.

Logging methods
Method	Description
`debug(message)`	Write `message`on DEBUG level.
`info(message)`	Write `message`on INFO level.
`warn(message)`	Write `message`on WARN level.
`error(message)`	Write `message`on ERROR level.
`fatal(message)`	Write `message`on FATAL level.

Options

Logging options are the following. Use log_optionsattribute of CKApplication to initialize CKLog objects instead of setting each options to do directly.

Options
Option	Description
`level`	Debug level.
`name`	Program name.
`out`	Output. By default is standard error.
`file`	File name to output logs. Set this or `out`option.
`max_file_size`	Max file size (this enables if you set file to output). If size of the file is over this size, `FileSizeError`is raised.

options = {‘level’         => CKLog::DEBUG,
           ‘name’          => ‘CGIKit Application’,
           ‘file’          => ‘log.txt’,
           ‘max_file_size’ => 1000000}

app = CKApplication.new
app.log_options = options
app.run

class MainPage < CKComponent
  def logging
    log = CKLog.new(application.log_options)
    log.debug ‘log message’
  end
end

CGIKit User Guide/Deploying Applications /Debugging/Logging