README

Log messages, usually error messages, only once and optionally get notified. No more flood of error logs with the same message.

Install

Install via composer as metarush/log-once

Sample usage

use MetaRush\LogOnce\LogOnce;

$message = 'This is my log';

$hash = \crc32($message); // you can use any hash function of your choice e.g., \md5(), \sha1(), etc

(new LogOnce($adapter)) // see adapter examples below
    ->setTimeZone('UTC')
    ->setHash($hash)
    ->setLogMessage($message)
    ->setNotifiers($notifiers) // optional, see below
    ->log();

Log adapters

File system

use MetaRush\LogOnce\FileSystem\Adapter as FileSytemLogger;

$logDir = '/path/to/logs';

$adapter = new FileSytemLogger($logDir);

Note: To mark a log file as read, rename it with a __ALREADYREAD suffix e.g., 2021-01-01_00-00-00_+0000__12345__ALREADYREAD.log or you can simply delete the file.

PDO database (e.g., MySQL, PostgreSQL, SQLite)

Create a table with ff. fields:

• id INTEGER PRIMARY KEY AUTOINCREMENT,
• createdOn DATETIME, // must use YYYY-MM-DD HH:MM:SS
• hash TEXT, // make length as long as your hash function's output e.g., if \md5(), must be 32
• message TEXT, // make length as long your log messages
• alreadyRead INTEGER // will have 1 or 0 value, can be ENUM or UNSIGNED TINY INT if you want

use MetaRush\DataMapper\Builder as DataMapperBuilder;
use MetaRush\LogOnce\Pdo\Adapter as PdoLogger;

$dataMapper = (new DataMapperBuilder)
    ->setDsn('mysql:host=localhost;dbname=yourLogDb')
    ->setDbUser('user')
    ->setDbPass('pass');
    ->build();

$adapter = new PdoLogger($dataMapper, 'yourLogTable');

Note: To mark a log row as read, set the alreadyRead column to 1 or you can simply delete the row.

Notifiers

We use the package metarush/notifier as notifier

use MetaRush\Notifier\Pushover\Builder as PushoverNotifier;

// define a Pushover notifier

$pushoverNotifier = (new PushoverNotifier)
                        ->addAccount('pushover_app_key', 'pushover_user_key')
                        ->setSubject('test subject')
                        ->setBody('test body')
                        ->build();

// $emailNotifier = (new EmailNotifier)...; // optionally add other notifiers

$notifiers = [$pushoverNotifier, $emailNotifier];

Inject $notifiers in ->setNotifiers($notifiers) to the sample usage above.

For more info on how to use other available notifiers such as email visit metarush/notifier

Viewing logs

A UI to view the logs is not included in this package. You can simply use whatever database admin tool you're using if you're using PDO logger, or manually view the file system, if you're using the File system logger.