feat: multiselect field for filtering

src/Form/AssignmentFilterType.php

@@ -80,11 +80,11 @@ class AssignmentFilterType extends AbstractType
 
         if (0 < count($options['job_profiles'])) {
             $builder
-                ->add('jobProfile', EntityType::class, [
+                ->add('jobProfiles', MultiselectEntityType::class, [
                     'label' => 'Job-Profil',
                     'class' => JobProfile::class,
                     'required' => false,
-                    'placeholder' => 'nicht filtern',
+                    'empty_label' => 'nicht filtern',
                     'choice_label' => 'name',
                     'choices' => $options['job_profiles'],
                 ])
@@ -96,10 +96,10 @@ class AssignmentFilterType extends AbstractType
                 $choices[$item->getHotel()] = $item->getHotelCode();
             }
             $builder
-                ->add('hotel', ChoiceType::class, [
+                ->add('hotels', MultiselectType::class, [
                     'label' => 'Haus',
                     'required' => false,
-                    'placeholder' => 'nicht filtern',
+                    'empty_label' => 'nicht filtern',
                     'choices' => $choices,
                 ])
             ;

src/Form/MultiselectEntityType.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Form;
+
+use Symfony\Bridge\Doctrine\Form\Type\EntityType;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\FormInterface;
+use Symfony\Component\Form\FormView;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class MultiselectEntityType extends AbstractType
+{
+    public function getParent(): string
+    {
+        return EntityType::class;
+    }
+
+    public function buildView(FormView $view, FormInterface $form, array $options): void
+    {
+        $view->vars['empty_label'] = $options['empty_label'];
+    }
+
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults([
+            'multiple' => true,
+            'expanded' => true,
+            'empty_label' => null,
+        ]);
+    }
+
+    public function getBlockPrefix(): string
+    {
+        return 'multiselect';
+    }
+}

src/Form/MultiselectType.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Form;
+
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Symfony\Component\Form\FormInterface;
+use Symfony\Component\Form\FormView;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class MultiselectType extends AbstractType
+{
+    public function getParent(): string
+    {
+        return ChoiceType::class;
+    }
+
+    public function buildView(FormView $view, FormInterface $form, array $options): void
+    {
+        $view->vars['empty_label'] = $options['empty_label'];
+    }
+
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults([
+            'multiple' => true,
+            'expanded' => true,
+            'empty_label' => null,
+        ]);
+    }
+
+    public function getBlockPrefix(): string
+    {
+        return 'multiselect';
+    }
+}