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Versions: 6
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Contents
# logic.
module Umlaut::ErrorHandling
extend ActiveSupport::Concern
included do
# Only custom errors in production
unless Rails.application.config.consider_all_requests_local
# generic catch-all comes first, later ones will take priority
rescue_from Exception, :with => :handle_general_error
rescue_from ActiveRecord::RecordNotFound, :with => :handle_404_error
end
end
def handle_general_error(exception)
log_error_with_context(exception)
@page_title = "Error!"
# Only render this if we haven't done anything else
# e.g. if some other gem may be handling its own errors
unless performed?
if request.format.html?
render "error", :status => 500
else
render :text => "Unexpected fatal error, has been logged.", :status => 500
end
end
end
protected :handle_general_error
# Just returns a generic 404 page.
# Uses generic 404 page already stored in public/404.html as rails convention.
def handle_404_error(exception=nil)
render :file=>File.join(Rails.root ,"public/404"), :layout=>false, :status=>404
end
protected :handle_404_error
def log_error_with_context(exception, severity = :fatal)
message = "\n#{exception.class} (#{exception.message}):\n"
message << " uri: #{request.fullpath}\n\n"
message << " params: #{params.inspect}\n\n"
message << " Referer: #{request.referer}\n" if request.referer
message << " User-Agent: #{request.user_agent}\n"
message << " Client IP: #{request.remote_addr}\n\n"
message << exception.annoted_source_code.to_s if exception.respond_to?(:annoted_source_code)
# mysterious :noise param seems to match how default rails does it, so
# we actually get a backtrace.
message << " " << Rails.backtrace_cleaner.clean(exception.backtrace, :noise).join("\n ")
logger.send(severity, "#{message}\n\n")
end
protected :log_error_with_context
end
Version data entries
6 entries across 6 versions & 1 rubygems