Logger - ror

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Source : http://guides.rubyonrails.org/debugging_rails_applications.html You can also substitute another logger such as Log4R if you wish. You can specify an alternative logger in your environment.rb or any environment file: Rails.logger = Logger.new(STDOUT) Rails.logger = Log4r::Logger.new("Application Log") Or in the Initializer section, add any of the following config.logger = Logger.new(STDOUT) config.logger = Log4r::Logger.new("Application Log") By default, each log is created under Rails.root/log/ and the log file name is environment_name.log. To write in the current log use the logger.(debug|info|warn|error|fatal) method from within a controller, model or mailer: logger.debug "Person attributes hash: #{@person.attributes.inspect}" logger.info "Processing the request..." logger.fatal "Terminating application, raised unrecoverable error!!!" Example: class PostsController < ApplicationController # ... def create @post = Post.new(params[:post]) logger.debug "New post: #{@post.attributes.inspect}" logger.debug "Post should be valid: #{@post.valid?}"

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