If slack log url not set then not log to slack (#166)

app/Exceptions/Handler.php

@@ -70,7 +70,7 @@ class Handler extends ExceptionHandler
 
     public function render($request, Throwable $e)
     {
-        if ($this->shouldReport($e) && !in_array(\App::environment(),['testing'])) {
+        if ($this->shouldReport($e) && !in_array(\App::environment(),['testing']) && config('logging.channels.slack.enabled')) {
             Log::channel('slack')->error($e);
         }
 

config/logging.php

@@ -55,6 +55,7 @@ return [
         ],
 
         'slack' => [
+            'enabled' => env('LOG_SLACK_WEBHOOK_URL') ? true : false,
             'driver' => 'slack',
             'url' => env('LOG_SLACK_WEBHOOK_URL'),
             'username' => 'OpenForm Log',