protected function DatabaseRawBackend::doCounter in Supercache 2.0.x

Same name and namespace in other branches

1. 8 src/Cache/DatabaseRawBackend.php \Drupal\supercache\Cache\DatabaseRawBackend::doCounter()

doCounter: if the $cid already exists and is not numeric should throw an exception. If it does not exist, should be populated with the default value.

Parameters

mixed $cid :

mixed $increment :

mixed $default :

Throws

\Exception

1 call to DatabaseRawBackend::doCounter()

DatabaseRawBackend::counter in src/Cache/DatabaseRawBackend.php

Add an increment (can be negative) to the stored cache data. Only works for stored numeric data.

File

src/Cache/DatabaseRawBackend.php, line 383

Contains \Drupal\supercache\Cache\DatabaseRawBackend.

Class

DatabaseRawBackend

Defines a default cache implementation.

Namespace

Drupal\supercache\Cache

Code

protected function doCounter($cid, $increment, $default = 0) {
  $query = $this->connection
    ->update($this->bin);
  $query
    ->condition('cid', $cid);
  $query
    ->condition('data_int', NULL, 'IS NOT NULL');
  $query
    ->expression('data_int', "data_int + {$increment}");
  $result = 0;
  try {
    $result = $query
      ->execute();
  } catch (\Exception $e) {
  }
  if ($result == 0) {

    // Make sure the item does not exist before doing a set...
    $query = $this->connection
      ->select($this->bin);
    $query
      ->addField($this->bin, 'cid');
    $query
      ->condition('cid', $this
      ->normalizeCid($cid));
    $count = count($query
      ->execute()
      ->fetchAll());
    if ($count == 1) {
      throw new \Exception("Counter failed.");
    }

    // Set the default value...
    $this
      ->counterSet($cid, $default);
  }
}