DQL Queries not functionning (Doctrine2; Symfony5.0) - php

Question

I'm having trouble with DQL queries on a project I'm working on. What the DQL is supposed to do is find in the DB all the datas that are related to a productLine variable; that a user would type and search for into a form.
My issue is when I run a test with a product Line; I get an "Error 500" thrown; and I know the error origins from the Repository file; since the controller works fine (I've added some var_dumps in the controller after the query's line to check and I'm not reaching it when testing with the faulty function, whereas with another working function I can reach it).
I know that the data typed in by the user is collected (the product Line entered by the user), there seems to be an issue with DQL processing the query that I can't seem to find an answer for anywhere.
Without further ado; here's the code.
Working fine query
public function findByLotNumber($lotNumber){
return $this->createQueryBuilder('u')
->distinct()
->where('u.lotNumber LIKE :lotNumberS')
->setParameter('lotNumberS', $lotNumber . '%')
->getQuery()
->getResult();
}
faulty query
public function findByCriteriaIdentification($criteriaIdentification){
$givenLotNumber = $_POST['lotNumber'];
if(empty($_POST['lotNumber'])){
$givenLotNumber = '%';
}
$givenProductLine = $_POST['productLine'];
if(empty($_POST['productLine'])){
$givenProductLine = '%';
}
$varTest = $this->createQueryBuilder('u')
->distinct()
->where('u.lotNumber LIKE :lotNumberS')
->orWhere('u.productLine LIKE :productLineS')
->setParameter('lotNumberS', $givenLotNumber)
->setParameter('productLineS', $givenProductLine);
$queryTest = $varTest->getQuery();
return $queryTest->execute();
}
Does anyone have an insight regarding what I'm coding wrong ?
PS: this being a corporate project I don't have the possibility of upgrading to Symfo 6 or Doctrine3 at the moment.
EDIT: Here's the class of the entity i'm querying:
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* #ORM\Entity(repositoryClass="App\Repository\WafRepository")
*/
class Waf extends Sil
{
/**
* #ORM\Id()
* #ORM\GeneratedValue()
* #ORM\Column(type="integer")
* #ORM\OneToOne(targetEntity="App\Entity\Sil")
*/
private $id;
/**
* #ORM\Column(type="integer")
*/
private $rankId;
/**
* #ORM\Column(type="integer", nullable=true)
*/
private $size;
/**
* #ORM\Column(type="integer", nullable=true)
*/
private $thickness;
/*public function getId(): ?int
{
return $this->id;
}*/
public function getRankId(): ?int
{
return $this->rankId;
}
public function setRankId(int $rankId): self
{
$this->rankId = $rankId;
return $this;
}
public function getSize(): ?int
{
return $this->size;
}
public function setSize(int $size): self
{
$this->size = $size;
return $this;
}
public function getThickness(): ?int
{
return $this->thickness;
}
public function setThickness(?int $thickness): self
{
$this->thickness = $thickness;
return $this;
}
}
In case its useful, I'm adding as well the class "sili" that waf is an extent from:
<?php
namespace App\Entity;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;
/**
* #ORM\Entity(repositoryClass="App\Repository\SiliconRepository")
* #ORM\InheritanceType("JOINED")
* #ORM\DiscriminatorColumn(name="silType", type="string")
*/
class Sil
{
/**
* #ORM\Id()
* #ORM\GeneratedValue()
* #ORM\Column(type="integer")
*/
private $id;
/**
* #ORM\Column(type="string", length=20)
*/
private $lotNumber;
/**
* #ORM\Column(type="string", length=80, nullable=true)
*/
private $productLine;
/**
* #ORM\Column(type="string", length=20, nullable=true)
*/
private $productCode;
/**
* #ORM\Column(type="string", length=20, nullable=true)
*/
private $productLineCode;
/**
* #ORM\Column(type="string", length=20, nullable=true)
*/
private $sourceLot;
/**
* #ORM\Column(type="integer", nullable=true)
*/
private $division;
/**
* #ORM\Column(type="string", length=255, nullable=true)
*/
//private $comment;
/**
* #ORM\Column(type="string", length=255, nullable=true)
*/
private $testStatus;
/**
* #ORM\Column(type="integer", nullable=true)
*/
//private $lastUpdate;
/**
* #ORM\Column(type="integer", nullable=true)
*/
private $maturity;
/**
* #ORM\OneToMany(targetEntity="App\Entity\Operations", mappedBy="silicon")
*/
private $operations;
/**
* #ORM\OneToMany(targetEntity="App\Entity\State", mappedBy="silicon")
*/
private $states;
/**
* #ORM\Column(type="string", length=20, nullable=true)
*/
private $fatherLotNumber;
public function __construct()
{
$this->operations = new ArrayCollection();
$this->states = new ArrayCollection();
}
public function getId(): ?int
{
return $this->id;
}
public function getLotNumber(): ?string
{
return $this->lotNumber;
}
public function setLotNumber(string $lotNumber): self
{
$this->lotNumber = $lotNumber;
return $this;
}
public function getProductLine(): ?string
{
return $this->productLine;
}
public function setProductLine(?string $productLine): self
{
$this->productLine = $productLine;
return $this;
}
public function getProductCode(): ?string
{
return $this->productCode;
}
public function setProductCode(?string $productCode): self
{
$this->productCode = $productCode;
return $this;
}
public function getProductLineCode(): ?string
{
return $this->productLineCode;
}
public function setProductLineCode(?string $productLineCode): self
{
$this->productLineCode = $productLineCode;
return $this;
}
public function getSourceLot(): ?string
{
return $this->sourceLot;
}
public function setSourceLot(?string $sourceLot): self
{
$this->sourceLot = $sourceLot;
return $this;
}
public function getDivision(): ?int
{
return $this->division;
}
public function setDivision(?int $division): self
{
$this->division = $division;
return $this;
}
/*public function getComment(): ?string
{
return $this->comment;
}
public function setComment(?string $comment): self
{
$this->comment = $comment;
return $this;
}*/
public function getTestStatus(): ?string
{
return $this->testStatus;
}
public function setTestStatus(?string $testStatus): self
{
$this->testStatus = $testStatus;
return $this;
}
/*public function getLastUpdate(): ?int
{
return $this->lastUpdate;
}
public function setLastUpdate(int $lastUpdate): self
{
$this->lastUpdate = $lastUpdate;
return $this;
}*/
public function getMaturity(): ?int
{
return $this->maturity;
}
public function setMaturity(?int $maturity): self
{
$this->maturity = $maturity;
return $this;
}
/**
* #return Collection|Operations[]
*/
public function getOperations(): Collection
{
return $this->operations;
}
public function addOperation(Operations $operation): self
{
while (!($this)->operations->contains($operation)) {
$this->operations[] = $operation;
$operation->setSilicon($this);
}
return $this;
}
public function removeOperation(Operations $operation): self
{
if ($this->operations->contains($operation)) {
$this->operations->removeElement($operation);
//$this->reformatTab($this->operations);
// set the owning side to null (unless already changed)
if ($operation->getSilicon() === $this) {
$operation->setSilicon(null);
}
}
return $this;
}
/**
* #return Collection|State[]
*/
public function getStates(): Collection
{
return $this->states;
}
public function addState(State $state): self
{
if (!$this->states->contains($state)) {
$this->states[] = $state;
$state->setSilicon($this);
}
return $this;
}
public function removeState(State $state): self
{
if ($this->states->contains($state)) {
$this->states->removeElement($state);
// set the owning side to null (unless already changed)
if ($state->getSilicon() === $this) {
$state->setSilicon(null);
}
}
return $this;
}
public function getFatherLotNumber(): ?string
{
return $this->fatherLotNumber;
}
public function setFatherLotNumber(?string $fatherLotNumber): self
{
$this->fatherLotNumber = $fatherLotNumber;
return $this;
}
}
Thanks in advance !