protected function SourcePluginBase::getHighWaterField

Get the name of the field used as the high watermark.

The name of the field qualified with an alias if available.

Return value

string|null The name of the field for the high water mark, or NULL if not set.

See also

\Drupal\migrate\Plugin\migrate\source\SqlBase::initializeIterator()

File

core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php, line 604

Class

SourcePluginBase

The base class for source plugins.

Namespace

Code

protected function getHighWaterField() {
  if (!empty($this->highWaterProperty['name'])) {
    return !empty($this->highWaterProperty['alias']) ? $this->highWaterProperty['alias'] . '.' . $this->highWaterProperty['name'] : $this->highWaterProperty['name'];
  }
  return NULL;
}