fix: SA: Fix "...Access to an undefined property..." rule.

SA stands for Static Analysis.

phpstan-critical.neon

@@ -195,11 +195,6 @@ parameters:
             count: 2
             path: src/Bundle/ChillCalendarBundle/DataFixtures/ORM/LoadCalendarRange.php
 
-        -
-            message: "#^Access to an undefined property Chill\\\\CustomFieldsBundle\\\\Form\\\\DataTransformer\\\\JsonCustomFieldToArrayTransformer\\:\\:\\$customField\\.$#"
-            count: 3
-            path: src/Bundle/ChillCustomFieldsBundle/Form/DataTransformer/JsonCustomFieldToArrayTransformer.php
-
         -
             message: "#^Call to an undefined method Chill\\\\ThirdPartyBundle\\\\Form\\\\Type\\\\PickThirdPartyTypeCategoryType\\:\\:transform\\(\\)\\.$#"
             count: 1

src/Bundle/ChillCustomFieldsBundle/Form/DataTransformer/JsonCustomFieldToArrayTransformer.php

@@ -1,28 +1,27 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Chill\CustomFieldsBundle\Form\DataTransformer;
 
+use Chill\CustomFieldsBundle\Entity\CustomField;
 use Symfony\Component\Form\DataTransformerInterface;
 use Doctrine\Persistence\ObjectManager;
-use Doctrine\Common\Collections\ArrayCollection;
 
 class JsonCustomFieldToArrayTransformer implements DataTransformerInterface {
-    /**
-     * @var ObjectManager
-     */
-    private $om;
+    private ObjectManager $om;
+
+    private array $customField;
 
-    /**
-     * @param ObjectManager $om
-     */
     public function __construct(ObjectManager $om)
     {
         $this->om = $om;
 
         $customFields = $this->om
-            ->getRepository('ChillCustomFieldsBundle:CustomField')
+            ->getRepository(CustomField::class)
             ->findAll();
 
+        // @TODO: in the array_map callback, CustomField::getLabel() does not exist. What do we do here?
         $customFieldsLablels = array_map(
             function($e) { return $e->getLabel(); },
             $customFields);
@@ -36,20 +35,12 @@ class JsonCustomFieldToArrayTransformer implements DataTransformerInterface {
     {
         echo $customFieldsJSON;
 
-        if($customFieldsJSON === null) { // lors de la creation
-            $customFieldsArray = array();
+        if($customFieldsJSON === null) {
+            $customFieldsArray = [];
         } else {
-            $customFieldsArray = json_decode($customFieldsJSON,true);
+            $customFieldsArray = json_decode($customFieldsJSON, true, 512, JSON_THROW_ON_ERROR);
         }
 
-        /*
-        echo "<br> - 4 - <br>";
-
-        var_dump($customFieldsArray);
-
-        echo "<br> - 5 - <br>";
-        */
-
         $customFieldsArrayRet = array();
 
         foreach ($customFieldsArray as $key => $value) {