Dynamic Arguments in Doctrine andX() - php

Question

I´m looking for a solution to make the andX part of a doctrine DQL statement dynamic according to passed arguments:
private function getDiscountPrice(int $weighting, Article $article, Customer $customer, array $args) {
// Get the query builder
$qb = Shopware()->Models()->createQueryBuilder();
$params = new ArrayCollection();
foreach($args as $key => $arg):
$params->set($key,$arg);
endforeach;
$qb->select('discount')
->from('PhaBase\Models\Discount','discount')
->where(
$qb->expr()->andX(
$qb->expr()->eq('discount.kdNr',':kdNr'),
$qb->expr()->eq('discount.pzn',':pzn'),
$qb->expr()->isNotNull('discount.kdNr'),
$qb->expr()->isNotNull('discount.pzn')
)
)
->setParameters($params->toArray());
$discount = null;
try {
$discount = $qb->getQuery()->getOneOrNullResult();
} catch (NonUniqueResultException $e) {
// #TODO Add log entry to inform about Exception
return null;
}
I want to build the content for the andX() argument in the same way like the Parameters, but I don´t know how to pass dynamic arguments to this method.
Thanks for any ideas,
Michael

Answer 1

Here´s the solution - just found it:
private function getDiscountPrice(int $weighting, Article $article, Customer $customer, array $args) {
// Get the query builder
$qb = Shopware()->Models()->createQueryBuilder();
$params = new ArrayCollection();
$conditions = new ArrayCollection();
foreach($args as $key => $arg):
$params->set($key,$arg);
$conditions->add($qb->expr()->eq('discount.'.$key,':'.$key));
endforeach;
$conditions = call_user_func_array(array($qb->expr(), 'andX'), $conditions->toArray());
$qb->select('discount')
->from('PhaBase\Models\Discount','discount')
->where($conditions)
->setParameters($params->toArray());
$discount = null;
try {
$discount = $qb->getQuery()->getOneOrNullResult();
} catch (NonUniqueResultException $e) {
// #TODO Add log entry to inform about Exception
return null;
}
// If a discount was found calculate the price for this discount and return it.
if (!is_null($discount)):
$discountPrice = $this->calculateDiscountPrice($article, $discount, $customer);

Answer 2

You can add() additional expressions directly to andX() or orX()
Instead of adding your expressions to an ArrayCollection you can add them directly to an andX expression (and only add that to the main query if there are actually expressions inside of it). Same goes for the required parameters.:
private function getDiscountPrice(int $weighting, Article $article, Customer $customer, array $args)
{
// Early out if there's nothing to do.
if (empty($args)) {
return null;
}
$qb = Shopware()->Models()->createQueryBuilder()
->select('discount')
->from(PhaBase\Models\Discount::class,'discount')
;
$conditions = $qb->expr()->andX();
// Instead of setting each parameter individually (see below) you could set them
// all at once without the need for an ArrayCollection(), like you used, because your
// $args array is already in the correct format.
// $qb->setParameters($args);
foreach($args as $key => $arg) {
$conditions->add('discount.'.$key.' = :'.$key);
$qb->setParameter($key, $arg);
}
// You could check for $conditions->count() > 0 here, but we already did that at the beginning.
try {
return $this->calculateDiscountPrice(
$article,
$qb->where($conditions)->getQuery()->getOneOrNullResult(),
$customer
);
} catch (NonUniqueResultException $e) {
// #TODO Add log entry to inform about Exception
return null;
}
}
A little late to the party but maybe it helps someone else.