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<?php
declare(strict_types=1);
namespace Doctrine\ORM\Query;
use Doctrine\ORM\Configuration;
use Doctrine\ORM\EntityManager;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Query\Filter\SQLFilter;
use InvalidArgumentException;
use function assert;
use function ksort;
/**
* Collection class for all the query filters.
*/
class FilterCollection
{
/* Filter STATES */
/**
* A filter object is in CLEAN state when it has no changed parameters.
*/
public const FILTERS_STATE_CLEAN = 1;
/**
* A filter object is in DIRTY state when it has changed parameters.
*/
public const FILTERS_STATE_DIRTY = 2;
/**
* The used Configuration.
*
* @var Configuration
*/
private $config;
/**
* The EntityManager that "owns" this FilterCollection instance.
*
* @var EntityManager
*/
private $em;
/**
* Instances of enabled filters.
*
* @var SQLFilter[]
*/
private $enabledFilters = [];
/** @var string The filter hash from the last time the query was parsed. */
private $filterHash;
/** @var int The current state of this filter. */
private $filtersState = self::FILTERS_STATE_CLEAN;
public function __construct(EntityManagerInterface $em)
{
$this->em = $em;
$this->config = $em->getConfiguration();
}
/**
* Gets all the enabled filters.
*
* @return SQLFilter[] The enabled filters.
*/
public function getEnabledFilters()
{
return $this->enabledFilters;
}
/**
* Enables a filter from the collection.
*
* @param string $name Name of the filter.
*
* @return SQLFilter The enabled filter.
*
* @throws InvalidArgumentException If the filter does not exist.
*/
public function enable($name)
{
if (! $this->has($name)) {
throw new InvalidArgumentException("Filter '" . $name . "' does not exist.");
}
if (! $this->isEnabled($name)) {
$filterClass = $this->config->getFilterClassName($name);
assert($filterClass !== null);
$this->enabledFilters[$name] = new $filterClass($this->em);
// Keep the enabled filters sorted for the hash
ksort($this->enabledFilters);
// Now the filter collection is dirty
$this->filtersState = self::FILTERS_STATE_DIRTY;
}
return $this->enabledFilters[$name];
}
/**
* Disables a filter.
*
* @param string $name Name of the filter.
*
* @return SQLFilter The disabled filter.
*
* @throws InvalidArgumentException If the filter does not exist.
*/
public function disable($name)
{
// Get the filter to return it
$filter = $this->getFilter($name);
unset($this->enabledFilters[$name]);
// Now the filter collection is dirty
$this->filtersState = self::FILTERS_STATE_DIRTY;
return $filter;
}
/**
* Gets an enabled filter from the collection.
*
* @param string $name Name of the filter.
*
* @return SQLFilter The filter.
*
* @throws InvalidArgumentException If the filter is not enabled.
*/
public function getFilter($name)
{
if (! $this->isEnabled($name)) {
throw new InvalidArgumentException("Filter '" . $name . "' is not enabled.");
}
return $this->enabledFilters[$name];
}
/**
* Checks whether filter with given name is defined.
*
* @param string $name Name of the filter.
*
* @return bool true if the filter exists, false if not.
*/
public function has($name)
{
return $this->config->getFilterClassName($name) !== null;
}
/**
* Checks if a filter is enabled.
*
* @param string $name Name of the filter.
*
* @return bool True if the filter is enabled, false otherwise.
*/
public function isEnabled($name)
{
return isset($this->enabledFilters[$name]);
}
/**
* @return bool True, if the filter collection is clean.
*/
public function isClean()
{
return $this->filtersState === self::FILTERS_STATE_CLEAN;
}
/**
* Generates a string of currently enabled filters to use for the cache id.
*
* @return string
*/
public function getHash()
{
// If there are only clean filters, the previous hash can be returned
if ($this->filtersState === self::FILTERS_STATE_CLEAN) {
return $this->filterHash;
}
$filterHash = '';
foreach ($this->enabledFilters as $name => $filter) {
$filterHash .= $name . $filter;
}
return $filterHash;
}
/**
* Sets the filter state to dirty.
*
* @return void
*/
public function setFiltersStateDirty()
{
$this->filtersState = self::FILTERS_STATE_DIRTY;
}
}

vendor/doctrine/orm/lib/Doctrine/ORM/Query/FilterCollection.php line 85