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magemonolog

Facts

Version: 0.2.2 Developed (and tested) on Magento CE v 1.8.1.0

Introduction

A Magento extension which provides a custom writer model to transparently use Monolog as logging library.

The following Monolog's Handlers are supported at the moment:

  • StreamHandler - writes to file
  • NativeMailHandler - sends each log entry via email
  • NewRelicHandler - logs in NewRelic app

Installation

You can install this extension in several ways:

Download

Download the full package, copy the content of the app directory in your Magento base directory; pay attention not to overwrite the app folder, only merge its contents into existing directory;

Modman

Install modman Module Manager: https://github.com/colinmollenhour/modman

After having installed modman on your system, you can clone this module on your Magento base directory by typing the following command:

$ modman init
$ modman clone [email protected]:aleron75/magemonolog.git

Composer

Install composer: http://getcomposer.org/download/

Install Magento Composer: https://github.com/magento-hackathon/magento-composer-installer

Add the dependency to your composer.json:

{
  ...
  "require": {
    ...
    "aleron75/magemonolog": "dev-master",
    ...
  },
  "repositories": [
    ...
    {
      "type": "vcs",
      "url":  "[email protected]:aleron75/magemonolog.git"
    },
    ...
  ],
  ...
  "extra": {
    "magento-root-dir": "<magento_installation_dir>/"
  }
  ...
}

Then run the following command from the directory where your composer.json file is contained:

$ php composer.phar install

or

$ composer install

Common tasks

After installation:

  • if you have cache enabled, disable or refresh it;
  • if you have compilation enabled, disable it or recompile the code base.

Usage example

Once installed, the module automatically replaces the default Magento Log Writer with Monolog's StreamHandler.

This is obtained through the following config node in config.xml:

<config>
    <global>
        <log>
            <core>
                <writer_model>Aleron75_Magemonolog_Model_Logwriter</writer_model>
            </core>
        </log>
    </global>
</config>

which instructs Magento to use a custom log writer class when logging via the Mage::log() native static function.

The configured Aleron75_Magemonolog_Model_Logwriter class is a wrapper for Monolog and allows to use Monolog's Handlers.

Monolog's Handlers are configured in the config.xml through the following config node:

<config>
    <default>
        <magemonolog>
            <handlers>
                <StreamHandler>
                    <active>1</active>
                    <params>
                        <stream>magemonolog.log</stream>
                        <level>DEBUG</level>
                        <bubble>true</bubble>
                        <filePermission>null</filePermission>
                        <useLocking>false</useLocking>
                    </params>
                </StreamHandler>
                <NativeMailHandler>
                    <active>0</active>
                    <params>
                        <to>[email protected]</to>
                        <subject>Log</subject>
                        <from>[email protected]</from>
                        <level>ERROR</level>
                        <bubble>true</bubble>
                        <maxColumnWidth>70</maxColumnWidth>
                    </params>
                </NativeMailHandler>
                <NewRelicHandler>
                    <active>0</active>
                    <params>
                        <level>ERROR</level>
                        <bubble>true</bubble>
                        <appname>***your app name here***</appname>
                    </params>
                </NewRelicHandler>
            </handlers>
        </magemonolog>
    </default>
</config>

It is assumed you know Monolog's Handlers to understand the meaning of params node.

Multiple Log Handlers can be activated at the same time with different log filter level; this way, for example, it is possible to log any message into a file and only serious errors via e-mail.

Closing words

Any feedback is appreciated.

This extension is published under the Open Software License (OSL 3.0).