Rector changes and immplementations of required methods

docs/source/_static/code/exports/BirthdateFilter.php

@@ -28,7 +28,7 @@ class BirthdateFilter implements ExportElementValidatedInterface, FilterInterfac
     }
 
     // here, we alter the query created by Export
-    public function alterQuery(\Doctrine\ORM\QueryBuilder $qb, $data)
+    public function alterQuery(\Doctrine\ORM\QueryBuilder $qb, $data): void
     {
         $where = $qb->getDQLPart('where');
         // we create the clause here
@@ -58,7 +58,7 @@ class BirthdateFilter implements ExportElementValidatedInterface, FilterInterfac
     }
 
     // we build a form to collect some parameters from the users
-    public function buildForm(\Symfony\Component\Form\FormBuilderInterface $builder)
+    public function buildForm(\Symfony\Component\Form\FormBuilderInterface $builder): void
     {
         $builder->add('date_from', DateType::class, [
             'label' => 'Born after this date',
@@ -99,7 +99,7 @@ class BirthdateFilter implements ExportElementValidatedInterface, FilterInterfac
     // is executed here. This function is added by the interface
     // `ExportElementValidatedInterface`, and can be ignore if there is
     // no need for a validation
-    public function validateForm($data, ExecutionContextInterface $context)
+    public function validateForm($data, ExecutionContextInterface $context): void
     {
         $date_from = $data['date_from'];
         $date_to = $data['date_to'];

docs/source/_static/code/exports/CountPerson.php

@@ -32,7 +32,7 @@ class CountPerson implements ExportInterface
         $this->entityManager = $em;
     }
 
-    public function buildForm(FormBuilderInterface $builder)
+    public function buildForm(FormBuilderInterface $builder): void
     {
         // this export does not add any form
     }