Gets the collection for this model
| public getCollection ( ) : MongoCollection | ||
| return | MongoCollection | |
/**
* The cursor constructor
* @param string|EMongoDocument $modelClass - The class name for the active record
* @param array|MongoCursor|EMongoCriteria $criteria - Either a condition array (without sort,limit and skip) or a MongoCursor Object
* @param array $fields
*/
public function __construct($modelClass, $criteria = array(), $fields = array())
{
// If $fields has something in it
if (!empty($fields)) {
$this->partial = true;
}
if (is_string($modelClass)) {
$this->modelClass = $modelClass;
$this->model = EMongoDocument::model($this->modelClass);
} elseif ($modelClass instanceof EMongoDocument) {
$this->modelClass = get_class($modelClass);
$this->model = $modelClass;
}
if ($criteria instanceof MongoCursor) {
$this->cursor = $criteria;
$this->cursor->reset();
} elseif ($criteria instanceof EMongoCriteria) {
$this->criteria = $criteria;
$this->cursor = $this->model->getCollection()->find($criteria->condition, $criteria->project)->sort($criteria->sort);
if ($criteria->skip > 0) {
$this->cursor->skip($criteria->skip);
}
if ($criteria->limit > 0) {
$this->cursor->limit($criteria->limit);
}
} else {
// Then we are doing an active query
$this->criteria = $criteria;
$this->cursor = $this->model->getCollection()->find($criteria, $fields);
}
}
/**
* Gets the active record for the current row
* @return EMongoDocument|mixed
* @throws EMongoException
*/
public function current()
{
if (!$this->run) {
if ($this->model->getDbConnection()->queryCachingCount > 0 && $this->model->getDbConnection()->queryCachingDuration > 0 && $this->model->getDbConnection()->queryCacheID !== false && ($cache = Yii::app()->getComponent($this->model->getDbConnection()->queryCacheID)) !== null) {
$this->model->getDbConnection()->queryCachingCount--;
$info = $this->cursor()->info();
$cacheKey = 'yii:dbquery' . $this->model->getDbConnection()->server . ':' . $this->model->getDbConnection()->db . ':' . $this->model->getDbConnection()->getSerialisedQuery(is_array($info['query']) && isset($info['query']['$query']) ? $info['query']['$query'] : array(), $info['fields'], is_array($info['query']) && isset($info['query']['$orderby']) ? $info['query']['$orderby'] : array(), $info['skip'], $info['limit']) . ':' . $this->model->getCollection();
if (($result = $cache->get($cacheKey)) !== false) {
Yii::trace('Query result found in cache', 'extensions.MongoYii.EMongoDocument');
$this->cachedArray = $result;
$this->fromCache = true;
} else {
$this->cachedArray = iterator_to_array($this->cursor);
}
}
if (isset($cache, $cacheKey)) {
$cache->set($cacheKey, $this->cachedArray, $this->model->getDbConnection()->queryCachingDuration, $this->model->getDbConnection()->queryCachingDependency);
$this->fromCache = true;
}
$this->run = true;
}
if ($this->model === null) {
throw new EMongoException(Yii::t('yii', 'The MongoCursor must have a model'));
}
if ($this->fromCache) {
return $this->current = $this->model->populateRecord(current($this->cachedArray), true, $this->partial);
}
return $this->current = $this->model->populateRecord($this->cursor()->current(), true, $this->partial);
}
/**
* Counts the records returned by the criteria. By default this will not take skip and limit into account
* you can add inject true as the first and only parameter to enable MongoDB to take those offsets into
* consideration.
*
* @param bool $takeSkip
* @return int
*/
public function count($takeSkip = false)
{
return $this->model->getCollection()->count($this->query, $this->options);
}
