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<?php
declare(strict_types=1);
namespace Doctrine\ORM;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Criteria;
use Doctrine\ORM\Query\Expr;
use Doctrine\ORM\Query\QueryExpressionVisitor;
use InvalidArgumentException;
use RuntimeException;
use function array_keys;
use function array_merge;
use function array_unshift;
use function func_get_args;
use function func_num_args;
use function implode;
use function in_array;
use function is_array;
use function is_numeric;
use function is_object;
use function is_string;
use function key;
use function reset;
use function sprintf;
use function strpos;
use function strrpos;
use function substr;
/**
* This class is responsible for building DQL query strings via an object oriented
* PHP interface.
*/
class QueryBuilder
{
/* The query types. */
public const SELECT = 0;
public const DELETE = 1;
public const UPDATE = 2;
/* The builder states. */
public const STATE_DIRTY = 0;
public const STATE_CLEAN = 1;
/**
* The EntityManager used by this QueryBuilder.
*
* @var EntityManagerInterface
*/
private $em;
/**
* The array of DQL parts collected.
*
* @var mixed[]
*/
private $dqlParts = [
'distinct' => false,
'select' => [],
'from' => [],
'join' => [],
'set' => [],
'where' => null,
'groupBy' => [],
'having' => null,
'orderBy' => [],
];
/**
* The type of query this is. Can be select, update or delete.
*
* @var int
*/
private $type = self::SELECT;
/**
* The state of the query object. Can be dirty or clean.
*
* @var int
*/
private $state = self::STATE_CLEAN;
/**
* The complete DQL string for this query.
*
* @var string
*/
private $dql;
/**
* The query parameters.
*
* @var ArrayCollection
*/
private $parameters;
/**
* The index of the first result to retrieve.
*
* @var int
*/
private $firstResult;
/**
* The maximum number of results to retrieve.
*
* @var int|null
*/
private $maxResults;
/**
* Keeps root entity alias names for join entities.
*
* @var mixed[]
*/
private $joinRootAliases = [];
/**
* Whether to use second level cache, if available.
*
* @var bool
*/
protected $cacheable = false;
/**
* Second level cache region name.
*
* @var string|null
*/
protected $cacheRegion;
/**
* Second level query cache mode.
*
* @var int|null
*/
protected $cacheMode;
/** @var int */
protected $lifetime = 0;
/**
* Initializes a new <tt>QueryBuilder</tt> that uses the given <tt>EntityManager</tt>.
*
* @param EntityManagerInterface $em The EntityManager to use.
*/
public function __construct(EntityManagerInterface $em)
{
$this->em = $em;
$this->parameters = new ArrayCollection();
}
/**
* Gets an ExpressionBuilder used for object-oriented construction of query expressions.
* This producer method is intended for convenient inline usage. Example:
*
* <code>
* $qb = $em->createQueryBuilder();
* $qb
* ->select('u')
* ->from('User', 'u')
* ->where($qb->expr()->eq('u.id', 1));
* </code>
*
* For more complex expression construction, consider storing the expression
* builder object in a local variable.
*
* @return Query\Expr
*/
public function expr()
{
return $this->em->getExpressionBuilder();
}
/**
* Enable/disable second level query (result) caching for this query.
*
* @param bool $cacheable
*
* @return self
*/
public function setCacheable($cacheable)
{
$this->cacheable = (bool) $cacheable;
return $this;
}
/**
* @return bool TRUE if the query results are enable for second level cache, FALSE otherwise.
*/
public function isCacheable()
{
return $this->cacheable;
}
/**
* @param string $cacheRegion
*
* @return self
*/
public function setCacheRegion($cacheRegion)
{
$this->cacheRegion = (string) $cacheRegion;
return $this;
}
/**
* Obtain the name of the second level query cache region in which query results will be stored
*
* @return string|null The cache region name; NULL indicates the default region.
*/
public function getCacheRegion()
{
return $this->cacheRegion;
}
/**
* @return int
*/
public function getLifetime()
{
return $this->lifetime;
}
/**
* Sets the life-time for this query into second level cache.
*
* @param int $lifetime
*
* @return self
*/
public function setLifetime($lifetime)
{
$this->lifetime = (int) $lifetime;
return $this;
}
/**
* @return int
*/
public function getCacheMode()
{
return $this->cacheMode;
}
/**
* @param int $cacheMode
*
* @return self
*/
public function setCacheMode($cacheMode)
{
$this->cacheMode = (int) $cacheMode;
return $this;
}
/**
* Gets the type of the currently built query.
*
* @return int
*/
public function getType()
{
return $this->type;
}
/**
* Gets the associated EntityManager for this query builder.
*
* @return EntityManagerInterface
*/
public function getEntityManager()
{
return $this->em;
}
/**
* Gets the state of this query builder instance.
*
* @return int Either QueryBuilder::STATE_DIRTY or QueryBuilder::STATE_CLEAN.
*/
public function getState()
{
return $this->state;
}
/**
* Gets the complete DQL string formed by the current specifications of this QueryBuilder.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u');
* echo $qb->getDql(); // SELECT u FROM User u
* </code>
*
* @return string The DQL query string.
*/
public function getDQL()
{
if ($this->dql !== null && $this->state === self::STATE_CLEAN) {
return $this->dql;
}
switch ($this->type) {
case self::DELETE:
$dql = $this->getDQLForDelete();
break;
case self::UPDATE:
$dql = $this->getDQLForUpdate();
break;
case self::SELECT:
default:
$dql = $this->getDQLForSelect();
break;
}
$this->state = self::STATE_CLEAN;
$this->dql = $dql;
return $dql;
}
/**
* Constructs a Query instance from the current specifications of the builder.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u');
* $q = $qb->getQuery();
* $results = $q->execute();
* </code>
*
* @return Query
*/
public function getQuery()
{
$parameters = clone $this->parameters;
$query = $this->em->createQuery($this->getDQL())
->setParameters($parameters)
->setFirstResult($this->firstResult)
->setMaxResults($this->maxResults);
if ($this->lifetime) {
$query->setLifetime($this->lifetime);
}
if ($this->cacheMode) {
$query->setCacheMode($this->cacheMode);
}
if ($this->cacheable) {
$query->setCacheable($this->cacheable);
}
if ($this->cacheRegion) {
$query->setCacheRegion($this->cacheRegion);
}
return $query;
}
/**
* Finds the root entity alias of the joined entity.
*
* @param string $alias The alias of the new join entity
* @param string $parentAlias The parent entity alias of the join relationship
*
* @return string
*/
private function findRootAlias($alias, $parentAlias)
{
$rootAlias = null;
if (in_array($parentAlias, $this->getRootAliases(), true)) {
$rootAlias = $parentAlias;
} elseif (isset($this->joinRootAliases[$parentAlias])) {
$rootAlias = $this->joinRootAliases[$parentAlias];
} else {
// Should never happen with correct joining order. Might be
// thoughtful to throw exception instead.
$rootAlias = $this->getRootAlias();
}
$this->joinRootAliases[$alias] = $rootAlias;
return $rootAlias;
}
/**
* Gets the FIRST root alias of the query. This is the first entity alias involved
* in the construction of the query.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u');
*
* echo $qb->getRootAlias(); // u
* </code>
*
* @deprecated Please use $qb->getRootAliases() instead.
*
* @return string
*
* @throws RuntimeException
*/
public function getRootAlias()
{
$aliases = $this->getRootAliases();
if (! isset($aliases[0])) {
throw new RuntimeException('No alias was set before invoking getRootAlias().');
}
return $aliases[0];
}
/**
* Gets the root aliases of the query. This is the entity aliases involved
* in the construction of the query.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u');
*
* $qb->getRootAliases(); // array('u')
* </code>
*
* @return string[]
*/
public function getRootAliases()
{
$aliases = [];
foreach ($this->dqlParts['from'] as &$fromClause) {
if (is_string($fromClause)) {
$spacePos = strrpos($fromClause, ' ');
$from = substr($fromClause, 0, $spacePos);
$alias = substr($fromClause, $spacePos + 1);
$fromClause = new Query\Expr\From($from, $alias);
}
$aliases[] = $fromClause->getAlias();
}
return $aliases;
}
/**
* Gets all the aliases that have been used in the query.
* Including all select root aliases and join aliases
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->join('u.articles','a');
*
* $qb->getAllAliases(); // array('u','a')
* </code>
*
* @return string[]
*/
public function getAllAliases()
{
return array_merge($this->getRootAliases(), array_keys($this->joinRootAliases));
}
/**
* Gets the root entities of the query. This is the entity aliases involved
* in the construction of the query.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u');
*
* $qb->getRootEntities(); // array('User')
* </code>
*
* @return string[]
*/
public function getRootEntities()
{
$entities = [];
foreach ($this->dqlParts['from'] as &$fromClause) {
if (is_string($fromClause)) {
$spacePos = strrpos($fromClause, ' ');
$from = substr($fromClause, 0, $spacePos);
$alias = substr($fromClause, $spacePos + 1);
$fromClause = new Query\Expr\From($from, $alias);
}
$entities[] = $fromClause->getFrom();
}
return $entities;
}
/**
* Sets a query parameter for the query being constructed.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->where('u.id = :user_id')
* ->setParameter('user_id', 1);
* </code>
*
* @param string|int $key The parameter position or name.
* @param mixed $value The parameter value.
* @param string|int|null $type ParameterType::* or \Doctrine\DBAL\Types\Type::* constant
*
* @return self
*/
public function setParameter($key, $value, $type = null)
{
$existingParameter = $this->getParameter($key);
if ($existingParameter !== null) {
$existingParameter->setValue($value, $type);
return $this;
}
$this->parameters->add(new Query\Parameter($key, $value, $type));
return $this;
}
/**
* Sets a collection of query parameters for the query being constructed.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->where('u.id = :user_id1 OR u.id = :user_id2')
* ->setParameters(new ArrayCollection(array(
* new Parameter('user_id1', 1),
* new Parameter('user_id2', 2)
* )));
* </code>
*
* @param ArrayCollection|array|mixed[] $parameters The query parameters to set.
*
* @return self
*/
public function setParameters($parameters)
{
// BC compatibility with 2.3-
if (is_array($parameters)) {
$parameterCollection = new ArrayCollection();
foreach ($parameters as $key => $value) {
$parameter = new Query\Parameter($key, $value);
$parameterCollection->add($parameter);
}
$parameters = $parameterCollection;
}
$this->parameters = $parameters;
return $this;
}
/**
* Gets all defined query parameters for the query being constructed.
*
* @return ArrayCollection The currently defined query parameters.
*/
public function getParameters()
{
return $this->parameters;
}
/**
* Gets a (previously set) query parameter of the query being constructed.
*
* @param mixed $key The key (index or name) of the bound parameter.
*
* @return Query\Parameter|null The value of the bound parameter.
*/
public function getParameter($key)
{
$filteredParameters = $this->parameters->filter(
static function (Query\Parameter $parameter) use ($key) : bool {
$parameterName = $parameter->getName();
return $key === $parameterName || (string) $key === (string) $parameterName;
}
);
return $filteredParameters->isEmpty() ? null : $filteredParameters->first();
}
/**
* Sets the position of the first result to retrieve (the "offset").
*
* @param int $firstResult The first result to return.
*
* @return self
*/
public function setFirstResult($firstResult)
{
$this->firstResult = $firstResult;
return $this;
}
/**
* Gets the position of the first result the query object was set to retrieve (the "offset").
* Returns NULL if {@link setFirstResult} was not applied to this QueryBuilder.
*
* @return int The position of the first result.
*/
public function getFirstResult()
{
return $this->firstResult;
}
/**
* Sets the maximum number of results to retrieve (the "limit").
*
* @param int|null $maxResults The maximum number of results to retrieve.
*
* @return self
*/
public function setMaxResults($maxResults)
{
$this->maxResults = $maxResults;
return $this;
}
/**
* Gets the maximum number of results the query object was set to retrieve (the "limit").
* Returns NULL if {@link setMaxResults} was not applied to this query builder.
*
* @return int|null Maximum number of results.
*/
public function getMaxResults()
{
return $this->maxResults;
}
/**
* Either appends to or replaces a single, generic query part.
*
* The available parts are: 'select', 'from', 'join', 'set', 'where',
* 'groupBy', 'having' and 'orderBy'.
*
* @param string $dqlPartName The DQL part name.
* @param object|mixed[] $dqlPart An Expr object.
* @param bool $append Whether to append (true) or replace (false).
*
* @return self
*/
public function add($dqlPartName, $dqlPart, $append = false)
{
if ($append && ($dqlPartName === 'where' || $dqlPartName === 'having')) {
throw new InvalidArgumentException(
"Using \$append = true does not have an effect with 'where' or 'having' " .
'parts. See QueryBuilder#andWhere() for an example for correct usage.'
);
}
$isMultiple = is_array($this->dqlParts[$dqlPartName])
&& ! ($dqlPartName === 'join' && ! $append);
// Allow adding any part retrieved from self::getDQLParts().
if (is_array($dqlPart) && $dqlPartName !== 'join') {
$dqlPart = reset($dqlPart);
}
// This is introduced for backwards compatibility reasons.
// TODO: Remove for 3.0
if ($dqlPartName === 'join') {
$newDqlPart = [];
foreach ($dqlPart as $k => $v) {
$k = is_numeric($k) ? $this->getRootAlias() : $k;
$newDqlPart[$k] = $v;
}
$dqlPart = $newDqlPart;
}
if ($append && $isMultiple) {
if (is_array($dqlPart)) {
$key = key($dqlPart);
$this->dqlParts[$dqlPartName][$key][] = $dqlPart[$key];
} else {
$this->dqlParts[$dqlPartName][] = $dqlPart;
}
} else {
$this->dqlParts[$dqlPartName] = $isMultiple ? [$dqlPart] : $dqlPart;
}
$this->state = self::STATE_DIRTY;
return $this;
}
/**
* Specifies an item that is to be returned in the query result.
* Replaces any previously specified selections, if any.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u', 'p')
* ->from('User', 'u')
* ->leftJoin('u.Phonenumbers', 'p');
* </code>
*
* @param mixed $select The selection expressions.
*
* @return self
*/
public function select($select = null)
{
$this->type = self::SELECT;
if (empty($select)) {
return $this;
}
$selects = is_array($select) ? $select : func_get_args();
return $this->add('select', new Expr\Select($selects), false);
}
/**
* Adds a DISTINCT flag to this query.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->distinct()
* ->from('User', 'u');
* </code>
*
* @param bool $flag
*
* @return self
*/
public function distinct($flag = true)
{
$this->dqlParts['distinct'] = (bool) $flag;
return $this;
}
/**
* Adds an item that is to be returned in the query result.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->addSelect('p')
* ->from('User', 'u')
* ->leftJoin('u.Phonenumbers', 'p');
* </code>
*
* @param mixed $select The selection expression.
*
* @return self
*/
public function addSelect($select = null)
{
$this->type = self::SELECT;
if (empty($select)) {
return $this;
}
$selects = is_array($select) ? $select : func_get_args();
return $this->add('select', new Expr\Select($selects), true);
}
/**
* Turns the query being built into a bulk delete query that ranges over
* a certain entity type.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->delete('User', 'u')
* ->where('u.id = :user_id')
* ->setParameter('user_id', 1);
* </code>
*
* @param string $delete The class/type whose instances are subject to the deletion.
* @param string $alias The class/type alias used in the constructed query.
*
* @return self
*/
public function delete($delete = null, $alias = null)
{
$this->type = self::DELETE;
if (! $delete) {
return $this;
}
return $this->add('from', new Expr\From($delete, $alias));
}
/**
* Turns the query being built into a bulk update query that ranges over
* a certain entity type.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->update('User', 'u')
* ->set('u.password', '?1')
* ->where('u.id = ?2');
* </code>
*
* @param string $update The class/type whose instances are subject to the update.
* @param string $alias The class/type alias used in the constructed query.
*
* @return self
*/
public function update($update = null, $alias = null)
{
$this->type = self::UPDATE;
if (! $update) {
return $this;
}
return $this->add('from', new Expr\From($update, $alias));
}
/**
* Creates and adds a query root corresponding to the entity identified by the given alias,
* forming a cartesian product with any existing query roots.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u');
* </code>
*
* @param string $from The class name.
* @param string $alias The alias of the class.
* @param string $indexBy The index for the from.
*
* @return self
*/
public function from($from, $alias, $indexBy = null)
{
return $this->add('from', new Expr\From($from, $alias, $indexBy), true);
}
/**
* Updates a query root corresponding to an entity setting its index by. This method is intended to be used with
* EntityRepository->createQueryBuilder(), which creates the initial FROM clause and do not allow you to update it
* setting an index by.
*
* <code>
* $qb = $userRepository->createQueryBuilder('u')
* ->indexBy('u', 'u.id');
*
* // Is equivalent to...
*
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u', 'u.id');
* </code>
*
* @param string $alias The root alias of the class.
* @param string $indexBy The index for the from.
*
* @return self
*
* @throws Query\QueryException
*/
public function indexBy($alias, $indexBy)
{
$rootAliases = $this->getRootAliases();
if (! in_array($alias, $rootAliases, true)) {
throw new Query\QueryException(
sprintf('Specified root alias %s must be set before invoking indexBy().', $alias)
);
}
foreach ($this->dqlParts['from'] as &$fromClause) {
/** @var Expr\From $fromClause */
if ($fromClause->getAlias() !== $alias) {
continue;
}
$fromClause = new Expr\From($fromClause->getFrom(), $fromClause->getAlias(), $indexBy);
}
return $this;
}
/**
* Creates and adds a join over an entity association to the query.
*
* The entities in the joined association will be fetched as part of the query
* result if the alias used for the joined association is placed in the select
* expressions.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->join('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
* </code>
*
* @param string $join The relationship to join.
* @param string $alias The alias of the join.
* @param string|null $conditionType The condition type constant. Either ON or WITH.
* @param string|null $condition The condition for the join.
* @param string|null $indexBy The index for the join.
*
* @return self
*/
public function join($join, $alias, $conditionType = null, $condition = null, $indexBy = null)
{
return $this->innerJoin($join, $alias, $conditionType, $condition, $indexBy);
}
/**
* Creates and adds a join over an entity association to the query.
*
* The entities in the joined association will be fetched as part of the query
* result if the alias used for the joined association is placed in the select
* expressions.
*
* [php]
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->innerJoin('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
*
* @param string $join The relationship to join.
* @param string $alias The alias of the join.
* @param string|null $conditionType The condition type constant. Either ON or WITH.
* @param string|null $condition The condition for the join.
* @param string|null $indexBy The index for the join.
*
* @return self
*/
public function innerJoin($join, $alias, $conditionType = null, $condition = null, $indexBy = null)
{
$hasParentAlias = strpos($join, '.');
$parentAlias = substr($join, 0, $hasParentAlias === false ? 0 : $hasParentAlias);
$rootAlias = $this->findRootAlias($alias, $parentAlias);
$join = new Expr\Join(
Expr\Join::INNER_JOIN,
$join,
$alias,
$conditionType,
$condition,
$indexBy
);
return $this->add('join', [$rootAlias => $join], true);
}
/**
* Creates and adds a left join over an entity association to the query.
*
* The entities in the joined association will be fetched as part of the query
* result if the alias used for the joined association is placed in the select
* expressions.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->leftJoin('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
* </code>
*
* @param string $join The relationship to join.
* @param string $alias The alias of the join.
* @param string|null $conditionType The condition type constant. Either ON or WITH.
* @param string|null $condition The condition for the join.
* @param string|null $indexBy The index for the join.
*
* @return self
*/
public function leftJoin($join, $alias, $conditionType = null, $condition = null, $indexBy = null)
{
$hasParentAlias = strpos($join, '.');
$parentAlias = substr($join, 0, $hasParentAlias === false ? 0 : $hasParentAlias);
$rootAlias = $this->findRootAlias($alias, $parentAlias);
$join = new Expr\Join(Expr\Join::LEFT_JOIN, $join, $alias, $conditionType, $condition, $indexBy);
return $this->add('join', [$rootAlias => $join], true);
}
/**
* Sets a new value for a field in a bulk update query.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->update('User', 'u')
* ->set('u.password', '?1')
* ->where('u.id = ?2');
* </code>
*
* @param string $key The key/field to set.
* @param mixed $value The value, expression, placeholder, etc.
*
* @return self
*/
public function set($key, $value)
{
return $this->add('set', new Expr\Comparison($key, Expr\Comparison::EQ, $value), true);
}
/**
* Specifies one or more restrictions to the query result.
* Replaces any previously specified restrictions, if any.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->where('u.id = ?');
*
* // You can optionally programmatically build and/or expressions
* $qb = $em->createQueryBuilder();
*
* $or = $qb->expr()->orX();
* $or->add($qb->expr()->eq('u.id', 1));
* $or->add($qb->expr()->eq('u.id', 2));
*
* $qb->update('User', 'u')
* ->set('u.password', '?')
* ->where($or);
* </code>
*
* @param mixed $predicates The restriction predicates.
*/
public function where($predicates)
{
if (! (func_num_args() === 1 && $predicates instanceof Expr\Composite)) {
$predicates = new Expr\Andx(func_get_args());
}
return $this->add('where', $predicates);
}
/**
* Adds one or more restrictions to the query results, forming a logical
* conjunction with any previously specified restrictions.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->where('u.username LIKE ?')
* ->andWhere('u.is_active = 1');
* </code>
*
* @see where()
*
* @//param mixed $where The query restrictions.
*/
public function andWhere()
{
$args = func_get_args();
$where = $this->getDQLPart('where');
if ($where instanceof Expr\Andx) {
$where->addMultiple($args);
} else {
array_unshift($args, $where);
$where = new Expr\Andx($args);
}
return $this->add('where', $where);
}
/**
* Adds one or more restrictions to the query results, forming a logical
* disjunction with any previously specified restrictions.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->where('u.id = 1')
* ->orWhere('u.id = 2');
* </code>
*
* @see where()
*
* @//param mixed $where The WHERE statement.
*/
public function orWhere()
{
$args = func_get_args();
$where = $this->getDQLPart('where');
if ($where instanceof Expr\Orx) {
$where->addMultiple($args);
} else {
array_unshift($args, $where);
$where = new Expr\Orx($args);
}
return $this->add('where', $where);
}
/**
* Specifies a grouping over the results of the query.
* Replaces any previously specified groupings, if any.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->groupBy('u.id');
* </code>
*
* @param string $groupBy The grouping expression.
*
* @return self
*/
public function groupBy($groupBy)
{
return $this->add('groupBy', new Expr\GroupBy(func_get_args()));
}
/**
* Adds a grouping expression to the query.
*
* <code>
* $qb = $em->createQueryBuilder()
* ->select('u')
* ->from('User', 'u')
* ->groupBy('u.lastLogin')
* ->addGroupBy('u.createdAt');
* </code>
*
* @param string $groupBy The grouping expression.
*
* @return self
*/
public function addGroupBy($groupBy)
{
return $this->add('groupBy', new Expr\GroupBy(func_get_args()), true);
}
/**
* Specifies a restriction over the groups of the query.
* Replaces any previous having restrictions, if any.
*
* @param mixed $having The restriction over the groups.
*
* @return self
*/
public function having($having)
{
if (! (func_num_args() === 1 && ($having instanceof Expr\Andx || $having instanceof Expr\Orx))) {
$having = new Expr\Andx(func_get_args());
}
return $this->add('having', $having);
}
/**
* Adds a restriction over the groups of the query, forming a logical
* conjunction with any existing having restrictions.
*
* @param mixed $having The restriction to append.
*
* @return self
*/
public function andHaving($having)
{
$args = func_get_args();
$having = $this->getDQLPart('having');
if ($having instanceof Expr\Andx) {
$having->addMultiple($args);
} else {
array_unshift($args, $having);
$having = new Expr\Andx($args);
}
return $this->add('having', $having);
}
/**
* Adds a restriction over the groups of the query, forming a logical
* disjunction with any existing having restrictions.
*
* @param mixed $having The restriction to add.
*
* @return self
*/
public function orHaving($having)
{
$args = func_get_args();
$having = $this->getDQLPart('having');
if ($having instanceof Expr\Orx) {
$having->addMultiple($args);
} else {
array_unshift($args, $having);
$having = new Expr\Orx($args);
}
return $this->add('having', $having);
}
/**
* Specifies an ordering for the query results.
* Replaces any previously specified orderings, if any.
*
* @param string|Expr\OrderBy $sort The ordering expression.
* @param string $order The ordering direction.
*
* @return self
*/
public function orderBy($sort, $order = null)
{
$orderBy = $sort instanceof Expr\OrderBy ? $sort : new Expr\OrderBy($sort, $order);
return $this->add('orderBy', $orderBy);
}
/**
* Adds an ordering to the query results.
*
* @param string|Expr\OrderBy $sort The ordering expression.
* @param string $order The ordering direction.
*
* @return self
*/
public function addOrderBy($sort, $order = null)
{
$orderBy = $sort instanceof Expr\OrderBy ? $sort : new Expr\OrderBy($sort, $order);
return $this->add('orderBy', $orderBy, true);
}
/**
* Adds criteria to the query.
*
* Adds where expressions with AND operator.
* Adds orderings.
* Overrides firstResult and maxResults if they're set.
*
* @return self
*
* @throws Query\QueryException
*/
public function addCriteria(Criteria $criteria)
{
$allAliases = $this->getAllAliases();
if (! isset($allAliases[0])) {
throw new Query\QueryException('No aliases are set before invoking addCriteria().');
}
$visitor = new QueryExpressionVisitor($this->getAllAliases());
$whereExpression = $criteria->getWhereExpression();
if ($whereExpression) {
$this->andWhere($visitor->dispatch($whereExpression));
foreach ($visitor->getParameters() as $parameter) {
$this->parameters->add($parameter);
}
}
if ($criteria->getOrderings()) {
foreach ($criteria->getOrderings() as $sort => $order) {
$hasValidAlias = false;
foreach ($allAliases as $alias) {
if (strpos($sort . '.', $alias . '.') === 0) {
$hasValidAlias = true;
break;
}
}
if (! $hasValidAlias) {
$sort = $allAliases[0] . '.' . $sort;
}
$this->addOrderBy($sort, $order);
}
}
$firstResult = $criteria->getFirstResult();
$maxResults = $criteria->getMaxResults();
// Overwrite limits only if they was set in criteria
if ($firstResult !== null) {
$this->setFirstResult($firstResult);
}
if ($maxResults !== null) {
$this->setMaxResults($maxResults);
}
return $this;
}
/**
* Gets a query part by its name.
*
* @return mixed
*
* @todo Rename: getQueryPart (or remove?)
*/
public function getDQLPart($queryPartName)
{
return $this->dqlParts[$queryPartName];
}
/**
* Gets all query parts.
*
* @return mixed[] $dqlParts
*
* @todo Rename: getQueryParts (or remove?)
*/
public function getDQLParts()
{
return $this->dqlParts;
}
/**
* @return string
*/
private function getDQLForDelete()
{
return 'DELETE'
. $this->getReducedDQLQueryPart('from', ['pre' => ' ', 'separator' => ', '])
. $this->getReducedDQLQueryPart('where', ['pre' => ' WHERE '])
. $this->getReducedDQLQueryPart('orderBy', ['pre' => ' ORDER BY ', 'separator' => ', ']);
}
/**
* @return string
*/
private function getDQLForUpdate()
{
return 'UPDATE'
. $this->getReducedDQLQueryPart('from', ['pre' => ' ', 'separator' => ', '])
. $this->getReducedDQLQueryPart('set', ['pre' => ' SET ', 'separator' => ', '])
. $this->getReducedDQLQueryPart('where', ['pre' => ' WHERE '])
. $this->getReducedDQLQueryPart('orderBy', ['pre' => ' ORDER BY ', 'separator' => ', ']);
}
/**
* @return string
*/
private function getDQLForSelect()
{
$dql = 'SELECT'
. ($this->dqlParts['distinct']===true ? ' DISTINCT' : '')
. $this->getReducedDQLQueryPart('select', ['pre' => ' ', 'separator' => ', ']);
$fromParts = $this->getDQLPart('from');
$joinParts = $this->getDQLPart('join');
$fromClauses = [];
// Loop through all FROM clauses
if (! empty($fromParts)) {
$dql .= ' FROM ';
foreach ($fromParts as $from) {
$fromClause = (string) $from;
if ($from instanceof Expr\From && isset($joinParts[$from->getAlias()])) {
foreach ($joinParts[$from->getAlias()] as $join) {
$fromClause .= ' ' . ((string) $join);
}
}
$fromClauses[] = $fromClause;
}
}
$dql .= implode(', ', $fromClauses)
. $this->getReducedDQLQueryPart('where', ['pre' => ' WHERE '])
. $this->getReducedDQLQueryPart('groupBy', ['pre' => ' GROUP BY ', 'separator' => ', '])
. $this->getReducedDQLQueryPart('having', ['pre' => ' HAVING '])
. $this->getReducedDQLQueryPart('orderBy', ['pre' => ' ORDER BY ', 'separator' => ', ']);
return $dql;
}
/**
* @param string $queryPartName
* @param mixed[] $options
*
* @return string
*/
private function getReducedDQLQueryPart($queryPartName, $options = [])
{
$queryPart = $this->getDQLPart($queryPartName);
if (empty($queryPart)) {
return $options['empty'] ?? '';
}
return ($options['pre'] ?? '')
. (is_array($queryPart) ? implode($options['separator'], $queryPart) : $queryPart)
. ($options['post'] ?? '');
}
/**
* Resets DQL parts.
*
* @param string[]|null $parts
*/
public function resetDQLParts($parts = null)
{
if ($parts === null) {
$parts = array_keys($this->dqlParts);
}
foreach ($parts as $part) {
$this->resetDQLPart($part);
}
return $this;
}
/**
* Resets single DQL part.
*
* @param string $part
*
* @return self
*/
public function resetDQLPart($part)
{
$this->dqlParts[$part] = is_array($this->dqlParts[$part]) ? [] : null;
$this->state = self::STATE_DIRTY;
return $this;
}
/**
* Gets a string representation of this QueryBuilder which corresponds to
* the final DQL query being constructed.
*
* @return string The string representation of this QueryBuilder.
*/
public function __toString()
{
return $this->getDQL();
}
/**
* Deep clones all expression objects in the DQL parts.
*/
public function __clone()
{
foreach ($this->dqlParts as $part => $elements) {
if (is_array($this->dqlParts[$part])) {
foreach ($this->dqlParts[$part] as $idx => $element) {
if (is_object($element)) {
$this->dqlParts[$part][$idx] = clone $element;
}
}
} elseif (is_object($elements)) {
$this->dqlParts[$part] = clone $elements;
}
}
$parameters = [];
foreach ($this->parameters as $parameter) {
$parameters[] = clone $parameter;
}
$this->parameters = new ArrayCollection($parameters);
}
}
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