How to define mulitple orWhere queries with Doctrines Query Builder - php

Question

I want to create a query using Doctrines QueryBuilder.
The User can choose the database fields which shall be searched by checking or unchecking checkboxes in an HTML form. That is why $_POST contains 'filters' and 'like'.
$_POST['filters'] looks like this:
array(2) { [0]=> string(4) "rack" [1]=> string(5) "shelf" }
I'm trying to get the following query work to result in
SELECT * FROM `inventories` WHERE (`rack` OR `shelf` LIKE '%01%') AND `checkedOutAt` IS NULL ORDER BY `lastChangedAt`
I'm using Doctrine in Version 2.5.5 and PHP in Version 7. My controller looks like this:
public function searchAction()
{
$filters = array();
$em = $this->getEntityManager();
$vendors = $em->getRepository('Entities\Vendor')->findAll();
if ($_POST)
{
$filters = $_POST['filters'];
$like = trim($_POST['like']);
$inventories = $em
->getRepository('Entities\Inventory')
->findInventoriesBySearch($like, $filters)
;
$this->addContext('like', $like);
}
else
{
$inventories = $em
->getRepository('Entities\Inventory')
->findInventories()
;
}
$count = count($inventories);
$this->addContext('filters', $filters);
$this->addContext('vendors', $vendors);
$this->addContext('inventories', $inventories);
$this->addContext('count', $count);
$this->setTemplate('inventoryAction');
}
And the according repository (the "findInventories()" repository function works fine):
public function findInventoriesBySearch($like, $filters)
{
$em = $this->getEntityManager();
$orExpr = $qb->expr()->orX();
foreach ($filters as $filter)
{
$orExpr->add($qb->expr()->like($filter, $like));
}
$qb ->andWhere('i.checkedOutAt is NULL');
$qb->setParameter('like', '%' . $like . '%');
$qb->select('i')->where($orExpr)->addOrderBy('i.lastChangedAt', 'DESC');
return $qb->getQuery()->getResult();
}
When I run the script I receive the following error message:
Fatal error: Uncaught Doctrine\ORM\Query\QueryException: SELECT i
WHERE rack LIKE 01 OR shelf LIKE 01 ORDER BY i.lastChangedAt DESC in
.../vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryException.php:41
Stack trace: #0
.../vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(483):
Doctrine\ORM\Query\QueryException::dqlError('SELECT i WHERE ...') #1
.../vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(971):
Doctrine\ORM\Query\Parser->semanticalError('line 0, col 15 ...',
Array) #2
.../vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(1702):
Doctrine\ORM\Query\Parser->AbstractSchemaName() #3
.../vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(1557):
Doctrine\ORM\Query\Parser->RangeVariableDeclaration() #4
.../vendor/doctrine/orm/lib/Doctrine/ORM/Query/Parser.php(1292):
Doctrine\ORM\Query\Parser->IdentificationVariableDeclaration() in
.../vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryException.php on
line 63

Answer 1

Try check up & change it.
(Just, an advice) Don't work with $_POST/ request type/ access to it/etc. via "your way". Use typehinted Request e.g. :
public function searchAction(Request $request){
if ($request->isMethod('POST')) {
$filters = $request->request->get('filters');
//.....
}else{
}
}
Guess, the problem there is:
//...
foreach ($filters as $filter)
{
$filter = 'i.'.$filter; // <== 'i.rack','i.shelf', so on
$orExpr->add($qb->expr()->like($filter, $like));
}