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<?php |
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namespace Symbiote\QueuedJobs\Jobs; |
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use SilverStripe\Core\Config\Configurable; |
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use SilverStripe\Core\Injector\Injector; |
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use SilverStripe\ORM\DB; |
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use SilverStripe\ORM\FieldType\DBDatetime; |
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use Symbiote\QueuedJobs\Services\AbstractQueuedJob; |
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use Symbiote\QueuedJobs\Services\QueuedJob; |
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use Symbiote\QueuedJobs\Services\QueuedJobService; |
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/** |
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* An queued job to clean out the QueuedJobDescriptor Table |
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* which often gets too full |
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* |
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* @author Andrew Aitken-Fincham <[email protected]> |
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*/ |
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class CleanupJob extends AbstractQueuedJob |
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{ |
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use Configurable; |
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/** |
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* How we will determine "stale" |
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* Possible values: age, number |
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* @config |
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* @var string |
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*/ |
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private static $cleanup_method = "age"; |
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/** |
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* Value associated with cleanupMethod |
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* age => days, number => integer |
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* @config |
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* @var integer |
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*/ |
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private static $cleanup_value = 30; |
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/** |
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* Which JobStatus values are OK to be deleted |
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* @config |
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* @var array |
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*/ |
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private static $cleanup_statuses = array( |
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"Complete", |
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"Broken", |
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// "Initialising", |
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// "Running", |
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// "New", |
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// "Paused", |
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// "Cancelled", |
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// "Waiting", |
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); |
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/** |
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* Database query limit |
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* |
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* @config |
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* @var integer |
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*/ |
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private static $query_limit = 100000; |
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/** |
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* Check whether is enabled or not for BC |
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* @config |
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* @var boolean |
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*/ |
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private static $is_enabled = false; |
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/** |
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* Defines the title of the job |
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* @return string |
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*/ |
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public function getTitle() |
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{ |
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return _t( |
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__CLASS__ . '.Title', |
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"Clean up old jobs from the database" |
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); |
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} |
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/** |
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* Set immediacy of job |
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* @return int |
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*/ |
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public function getJobType() |
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{ |
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$this->totalSteps = '1'; |
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return QueuedJob::IMMEDIATE; |
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} |
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/** |
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* Clear out stale jobs based on the cleanup values |
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*/ |
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public function process() |
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{ |
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// construct limit statement if query_limit is valid int value |
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$limit = ''; |
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$query_limit = $this->config()->get('query_limit'); |
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if (is_numeric($query_limit) && $query_limit >= 0) { |
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$limit = ' LIMIT ' . ((int)$query_limit); |
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} |
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$statusList = implode('\', \'', $this->config()->get('cleanup_statuses')); |
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switch ($this->config()->get('cleanup_method')) { |
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// If Age, we need to get jobs that are at least n days old |
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case "age": |
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$cutOff = date( |
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"Y-m-d H:i:s", |
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strtotime(DBDatetime::now() . |
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" - " . |
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$this->config()->cleanup_value . |
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" days") |
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); |
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$stale = DB::query( |
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'SELECT "ID" |
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FROM "QueuedJobDescriptor" |
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WHERE "JobStatus" |
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IN (\'' . $statusList . '\') |
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AND "LastEdited" < \'' . $cutOff . '\'' . $limit |
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); |
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$staleJobs = $stale->column("ID"); |
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break; |
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// If Number, we need to save n records, then delete from the rest |
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case "number": |
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$fresh = DB::query( |
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'SELECT "ID" |
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FROM "QueuedJobDescriptor" |
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ORDER BY "LastEdited" |
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ASC LIMIT ' . $this->config()->cleanup_value |
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); |
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$freshJobIDs = implode('\', \'', $fresh->column("ID")); |
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$stale = DB::query( |
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'SELECT "ID" |
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FROM "QueuedJobDescriptor" |
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WHERE "ID" |
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NOT IN (\'' . $freshJobIDs . '\') |
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AND "JobStatus" |
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IN (\'' . $statusList . '\')' . $limit |
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); |
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$staleJobs = $stale->column("ID"); |
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break; |
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default: |
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$this->addMessage("Incorrect configuration values set. Cleanup ignored"); |
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$this->isComplete = true; |
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return; |
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} |
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if (empty($staleJobs)) { |
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$this->addMessage("No jobs to clean up."); |
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$this->isComplete = true; |
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$this->reenqueue(); |
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return; |
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} |
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$numJobs = count($staleJobs); |
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$staleJobs = implode('\', \'', $staleJobs); |
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DB::query('DELETE FROM "QueuedJobDescriptor" |
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WHERE "ID" |
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IN (\'' . $staleJobs . '\')'); |
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$this->addMessage($numJobs . " jobs cleaned up."); |
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// let's make sure there is a cleanupJob in the queue |
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$this->reenqueue(); |
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$this->isComplete = true; |
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} |
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private function reenqueue() |
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{ |
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if ($this->config()->get('is_enabled')) { |
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$this->addMessage("Queueing the next Cleanup Job."); |
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$cleanup = Injector::inst()->create(CleanupJob::class); |
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QueuedJobService::singleton()->queueJob( |
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$cleanup, |
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DBDatetime::create()->setValue(DBDatetime::now()->getTimestamp() + 86400)->Rfc2822() |
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); |
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} |
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} |
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} |
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This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.