/**
* Start or rewind the iteration
*/
public function rewind()
{
if ($this->iterator === null) {
if (!$this->hasOrder()) {
$this->order();
}
$iterator = $this->repository->getDataSource()->query($this->query);
if ($iterator instanceof IteratorAggregate) {
$this->iterator = $iterator->getIterator();
} else {
$this->iterator = $iterator;
}
}
$this->iterator->rewind();
Benchmark::measure('Query result iteration started');
}
/**
* {@inheritDoc}
*
* @return Config
*/
public function getDataSource($table = null)
{
if ($this->ds !== null) {
return parent::getDataSource($table);
}
$table = $table ?: $this->getBaseTable();
$configs = $this->getConfigs();
if (!isset($configs[$table])) {
throw new ProgrammingError('Config for table "%s" missing', $table);
} elseif (!$configs[$table] instanceof Config) {
$configs[$table] = $this->createConfig($configs[$table], $table);
}
if (!$configs[$table]->getConfigObject()->getKeyColumn()) {
throw new ProgrammingError('INI repositories require their data source to provide a valid key column');
}
return $configs[$table];
}