function SourcePluginBase::key

Gets the iterator key.

Implementation of \Iterator::key() - called when entering a loop iteration, returning the key of the current row. It must be a scalar - we will serialize to fulfill the requirement, but using getCurrentIds() is preferable.

File

core/modules/migrate/src/Plugin/migrate/source/SourcePluginBase.php, line 359

Class

SourcePluginBase

The base class for source plugins.

Namespace

Code

public function key() {
    return serialize($this->currentSourceIds);
}