/**
* Execute query and every related query to compile records data in tree form - every relation
* data will be included as sub key.
*
* Attention, Selector will cache compiled data tree and not query itself to keep data integrity
* and to skip data compilation on second query.
*
* @return array
*/
public function fetchData()
{
//Pagination!
$this->applyPagination();
//Generating statement
$statement = $this->sqlStatement();
if (!empty($this->cacheLifetime)) {
$cacheKey = $this->cacheKey ?: md5(serialize([$statement, $this->getParameters()]));
if (empty($this->cacheStore)) {
$this->cacheStore = $this->orm->container()->get(CacheInterface::class)->store();
}
if ($this->cacheStore->has($cacheKey)) {
$this->logger()->debug("Selector result were fetched from cache.");
//We are going to store parsed result, not queries
return $this->cacheStore->get($cacheKey);
}
}
//We are bypassing run() method here to prevent query caching, we will prefer to cache
//parsed data rather that database response
$result = $this->database->query($statement, $this->getParameters());
//In many cases (too many inloads, too complex queries) parsing can take significant amount
//of time, so we better profile it
$benchmark = $this->benchmark('parseResult', $statement);
//Here we are feeding selected data to our primary loaded to parse it and and create
//data tree for our records
$this->loader->parseResult($result, $rowsCount);
$this->benchmark($benchmark);
//Memory freeing
$result->close();
//This must force loader to execute all post loaders (including ODM and etc)
$this->loader->loadData();
//Now we can request our primary loader for compiled data
$data = $this->loader->getResult();
//Memory free! Attention, it will not reset columns aliases but only make possible to run
//query again
$this->loader->clean();
if (!empty($this->cacheLifetime) && !empty($cacheKey)) {
//We are caching full records tree, not queries
$this->cacheStore->set($cacheKey, $data, $this->cacheLifetime);
}
return $data;
}
/**
* {@inheritdoc}
*/
protected function container()
{
if (empty($this->orm)) {
return parent::container();
}
return $this->orm->container();
}
/**
* {@inheritdoc}
*/
protected function container()
{
return $this->orm->container();
}
