Allow to filter parameters based on their text value

src/Form/Filters/Constraints/ParameterConstraintType.php

@@ -8,6 +8,8 @@ use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\SearchType;
 use Symfony\Component\Form\Extension\Core\Type\TextType;
 use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\FormEvent;
+use Symfony\Component\Form\FormEvents;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 class ParameterConstraintType extends AbstractType
@@ -17,6 +19,7 @@ class ParameterConstraintType extends AbstractType
         $resolver->setDefaults([
             'compound' => true,
             'data_class' => ParameterConstraint::class,
+            'empty_data' => new ParameterConstraint(),
         ]);
     }
 
@@ -31,7 +34,26 @@ class ParameterConstraintType extends AbstractType
         ]);
 
         $builder->add('symbol', SearchType::class, [
-           'required' => false
+            'required' => false
         ]);
+
+        $builder->add('value_text', TextConstraintType::class, [
+            //'required' => false,
+        ] );
+
+        /*
+         * I am not quite sure why this is needed, but somehow symfony tries to create a new instance of TextConstraint
+         * instead of using the existing one for the prototype (or the one from empty data). This fails as the constructor of TextConstraint requires
+         * arguments.
+         * Ensure that the data is never null, but use an empty ParameterConstraint instead
+         */
+        $builder->addEventListener(FormEvents::PRE_SET_DATA, function (FormEvent $event) {
+            $form = $event->getForm();
+            $data = $event->getData();
+
+            if ($data === null) {
+                $event->setData(new ParameterConstraint());
+            }
+        });
     }
 }

src/Form/Filters/PartFilterType.php

@@ -2,6 +2,7 @@
 
 namespace App\Form\Filters;
 
+use App\DataTables\Filters\Constraints\Part\ParameterConstraint;
 use App\DataTables\Filters\PartFilter;
 use App\Entity\Attachments\AttachmentType;
 use App\Entity\Parts\Category;
@@ -211,12 +212,16 @@ class PartFilterType extends AbstractType
             'label' => 'part.filter.attachmentName',
         ]);
 
+        $constraint_prototype = new ParameterConstraint();
+
         $builder->add('parameters', CollectionType::class, [
             'label' => 'parameter.label',
             'entry_type' => ParameterConstraintType::class,
             'allow_delete' => true,
             'allow_add' => true,
             'reindex_enable' => false,
+            'prototype_data' => $constraint_prototype,
+            'empty_data' => $constraint_prototype,
         ]);
 
         $builder->add('submit', SubmitType::class, [