ENH: Use the PsrLogMessageProcessor so that custom factory created lo…

…ggers can use context.

README.md

@@ -41,6 +41,8 @@ public function dostuff()
     $this->auditLogger->info('stuff happened');
     // You can also pass an arbitrary context array which will be included in the log.
     $this->auditLogger->warn('stuff happened', ['defcon' => 'amber']);
+    // By default we use the PsrLogMessageProcessor so you can created contextualised messages using the {key} syntax.
+    $this->auditLogger->info('stuff happened {defcon}', ['defcon' => 'amber']);
 }
 ```
 
@@ -49,6 +51,7 @@ Here is what will appear in the audit log on your dev machine (the exact format
 ```
 Aug 24 11:09:02 SilverStripe_audit[80615]: stuff happened [] {"real_ip":"127.0.0.1","url":"/do-stuff/","http_method":"GET","server":"localhost","referrer":null}
 Aug 24 11:09:02 SilverStripe_audit[80615]: stuff happened {"defcon":"amber"} {"real_ip":"127.0.0.1","url":"/do-stuff/","http_method":"GET","server":"localhost","referrer":null}
+Aug 24 11:09:02 SilverStripe_audit[80615]: stuff happened amber {"defcon":"amber"} {"real_ip":"127.0.0.1","url":"/do-stuff/","http_method":"GET","server":"localhost","referrer":null}
 ```
 
 ## Troubleshooting

code/AuditFactory.php

@@ -6,6 +6,7 @@
 use Monolog\Formatter\LineFormatter;
 use Monolog\Handler\SyslogHandler;
 use Monolog\Logger;
+use Monolog\Processor\PsrLogMessageProcessor;
 use Monolog\Processor\WebProcessor;
 use SilverStripe\Core\Injector\Factory;
 
@@ -21,7 +22,6 @@ public function create($service, array $params = [])
             throw new Exception('AuditFactory does not support passing params.');
         }
 
-        $obj = null;
         switch ($service) {
             case 'AuditLogger':
                 $log = new Logger('audit');
@@ -34,6 +34,7 @@ public function create($service, array $params = [])
                 ]));
 
                 $syslog->pushProcessor(new RealIPProcessor());
+                $syslog->pushProcessor(new PsrLogMessageProcessor());
                 $formatter = new LineFormatter("%level_name%: %message% %context% %extra%");
                 $syslog->setFormatter($formatter);
                 $log->pushHandler($syslog);