public function MemoryQueueDiagnosticCheck::run in Purge 8.3

Perform the check and determine the severity level.

Diagnostic checks determine whether something you are checking for is in shape, for instance CMI settings on which your plugin depends. Any check reporting self::SEVERITY_ERROR in their run() methods, will cause purge to stop working. Any other severity level will let the purgers proceed operating but you may report any warning through getRecommendation() to be shown on Drupal's status report, purge_ui or any other diagnostic listing.

public function run() {
  if (...check..) {
    return self::SEVERITY_OK;
  }
  return self::SEVERITY_WARNING;
}

@warning As diagnostic checks can be expensive, this method is called as rarely as possible. Checks derived from DiagnosticCheckBase will only see the check getting executed when any of the getter methods are called.

Return value

int Integer, matching either of the following constants:

• \Drupal\purge\Plugin\Purge\DiagnosticCheck\DiagnosticCheckInterface::SEVERITY_INFO
• \Drupal\purge\Plugin\Purge\DiagnosticCheck\DiagnosticCheckInterface::SEVERITY_OK
• \Drupal\purge\Plugin\Purge\DiagnosticCheck\DiagnosticCheckInterface::SEVERITY_WARNING
• \Drupal\purge\Plugin\Purge\DiagnosticCheck\DiagnosticCheckInterface::SEVERITY_ERROR

Throws

\Drupal\purge\Plugin\Purge\DiagnosticCheck\Exception\CheckNotImplementedCorrectly Thrown when the return value is incorrect.

Overrides DiagnosticCheckInterface::run

File

src/Plugin/Purge/DiagnosticCheck/MemoryQueueDiagnosticCheck.php, line 21

Class

MemoryQueueDiagnosticCheck

Issues a warning on how unreliable the memory queue is for day-day use.

Namespace

Drupal\purge\Plugin\Purge\DiagnosticCheck

Code

public function run() {

  // There's nothing to test for here, as this check only gets loaded when
  // the memory queue is active, so we can jump straight to conclusions.
  $this->recommendation = $this
    ->t("You are using the memory queue, which is not recommend for day to day use. Anything stored in this queue, gets lost if it doesn't get processed during the same request.");
  return self::SEVERITY_WARNING;
}