private function getCursor()
{
if ($this->cursor) {
return $this->cursor;
}
$this->cursor = $this->collection->getMongoCollection()->find($this->expression->toArray(), $this->fields);
if ($this->skip) {
$this->cursor->skip($this->skip);
}
if ($this->limit) {
$this->cursor->limit($this->limit);
}
if ($this->options['batchSize']) {
$this->cursor->batchSize($this->options['batchSize']);
}
if ($this->options['clientTimeout']) {
$this->cursor->timeout($this->options['clientTimeout']);
}
if ($this->options['serverTimeout']) {
$this->cursor->maxTimeMS($this->options['clientTimeout']);
}
if ($this->sort) {
$this->cursor->sort($this->sort);
}
if ($this->hint) {
$this->cursor->hint($this->hint);
}
// log request
if ($this->client->hasLogger()) {
$this->client->getLogger()->debug(get_called_class() . ': ' . json_encode(array('collection' => $this->collection->getName(), 'query' => $this->expression->toArray(), 'project' => $this->fields, 'sort' => $this->sort)));
}
$this->cursor->rewind();
// define read preferences
if ($this->readPreference) {
$this->cursor->setReadPreference($this->readPreference['type'], $this->readPreference['tagsets']);
}
return $this->cursor;
}