Part select element now works properly

assets/controllers/elements/part_select_controller.js

@@ -12,19 +12,27 @@ export default class extends Controller {
 
         let settings = {
             allowEmptyOption: true,
+            plugins: ['dropdown_input'],
             searchField: "name",
             valueField: "id",
+            labelField: "name",
             render: {
                 item: (data, escape) => {
-                    return '<span>' + "<img style='height: 1.5rem;' ' src='" + data.image + "'/>" + escape(data.name) +  '</span>';
+                    return '<span>' + (data.image ? "<img style='height: 1.5rem;' ' src='" + data.image + "'/>" : "") + escape(data.name) +  '</span>';
                 },
                 option: (data, escape) => {
+                    if(data.text) {
+                        return '<span>' + escape(data.text) + '</span>';
+                    }
+
                     let tmp = '<div class="row m-0">' +
-                        "<div class='col-2 p-0 d-flex align-items-center'><img class='typeahead-image' src='" + data.image + "'/></div>" +
+                        "<div class='col-2 p-0 d-flex align-items-center'>" +
+                        (data.image ? "<img class='typeahead-image' src='" + data.image + "'/>" : "") +
+                        "</div>" +
                         "<div class='col-10'>" +
                         '<h6 class="m-0">' + escape(data.name) + '</h6>' +
-                        '<p class="m-0">' + marked.parseInline(data.description) + '</p>' +
+                        (data.description ? '<p class="m-0">' + marked.parseInline(data.description) + '</p>' : "") +
-                        '<p class="m-0"><span class="fa-solid fa-tags fa-fw"></span> ' + escape(data.category);
+                        (data.category ? '<p class="m-0"><span class="fa-solid fa-tags fa-fw"></span> ' + escape(data.category) : "");
 
                     if (data.footprint) { //If footprint is defined for the part show it next to the category
                         tmp += ' <span class="fa-solid fa-microchip fa-fw"></span> ' + escape(data.footprint);
@@ -53,6 +61,7 @@ export default class extends Controller {
 
 
             this._tomSelect = new TomSelect(this.element, settings);
+            //this._tomSelect.clearOptions();
         }
     }
 }

src/Form/Type/PartSelectType.php

@@ -3,19 +3,74 @@
 namespace App\Form\Type;
 
 use App\Entity\Parts\Part;
+use App\Services\Attachments\AttachmentURLGenerator;
+use App\Services\Attachments\PartPreviewGenerator;
+use Doctrine\ORM\EntityManagerInterface;
 use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\ChoiceList\ChoiceList;
+use Symfony\Component\Form\DataMapperInterface;
+use Symfony\Component\Form\Event\PreSetDataEvent;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\FormEvent;
+use Symfony\Component\Form\FormEvents;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 
-class PartSelectType extends AbstractType
+class PartSelectType extends AbstractType implements DataMapperInterface
 {
     private UrlGeneratorInterface $urlGenerator;
+    private EntityManagerInterface $em;
+    private PartPreviewGenerator $previewGenerator;
+    private AttachmentURLGenerator $attachmentURLGenerator;
 
-    public function __construct(UrlGeneratorInterface $urlGenerator)
+    public function __construct(UrlGeneratorInterface $urlGenerator, EntityManagerInterface $em, PartPreviewGenerator $previewGenerator,
+        AttachmentURLGenerator $attachmentURLGenerator)
     {
         $this->urlGenerator = $urlGenerator;
+        $this->em = $em;
+        $this->previewGenerator = $previewGenerator;
+        $this->attachmentURLGenerator = $attachmentURLGenerator;
+    }
+
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        //At initialization we have to fill the form element with our selected data, so the user can see it
+        $builder->addEventListener(FormEvents::PRE_SET_DATA, function (PreSetDataEvent $event) {
+            $form = $event->getForm();
+            $config = $form->getConfig()->getOptions();
+            $data = $event->getData() ?? [];
+
+            $config['compound'] = false;
+            $config['choices'] = is_iterable($data) ? $data : [$data];
+            $config['error_bubbling'] = true;
+
+            $form->add('autocomplete', EntityType::class, $config);
+        });
+
+        //After form submit, we have to add the selected element as choice, otherwise the form will not accept this element
+        $builder->addEventListener(FormEvents::PRE_SUBMIT, function(FormEvent $event) {
+            $data = $event->getData();
+            $form = $event->getForm();
+            $options = $form->get('autocomplete')->getConfig()->getOptions();
+
+
+            if (!isset($data['autocomplete']) || '' === $data['autocomplete']) {
+                $options['choices'] = [];
+            } else {
+                //Extract the ID from the submitted data
+                $id = $data['autocomplete'];
+                //Find the element in the database
+                $element = $this->em->find($options['class'], $id);
+
+                //Add the element as choice
+                $options['choices'] = [$element];
+                $options['error_bubbling'] = true;
+                $form->add('autocomplete', EntityType::class, $options);
+            }
+        });
+
+       $builder->setDataMapper($this);
     }
 
     public function configureOptions(OptionsResolver $resolver)
@@ -23,7 +78,9 @@ class PartSelectType extends AbstractType
         $resolver->setDefaults([
             'class' => Part::class,
             'choice_label' => 'name',
-            'placeholder' => 'None'
+            //'placeholder' => 'None',
+            'compound' => true,
+            'error_bubbling' => false,
         ]);
 
         $resolver->setDefaults([
@@ -32,23 +89,49 @@ class PartSelectType extends AbstractType
                 'data-autocomplete' => $this->urlGenerator->generate('typeahead_parts', ['query' => '__QUERY__']),
                 //Disable browser autocomplete
                 'autocomplete' => 'off',
+
             ],
         ]);
 
-        $resolver->setDefaults(['choices' => []]);
-
         $resolver->setDefaults([
+            //Prefill the selected choice with the needed data, so the user can see it without an additional Ajax request
             'choice_attr' => ChoiceList::attr($this, function (?Part $part) {
+                if($part) {
+                    //Determine the picture to show:
+                    $preview_attachment = $this->previewGenerator->getTablePreviewAttachment($part);
+                    if ($preview_attachment !== null) {
+                        $preview_url = $this->attachmentURLGenerator->getThumbnailURL($preview_attachment,
+                            'thumbnail_sm');
+                    } else {
+                        $preview_url = '';
+                    }
+                }
+
                 return $part ? [
-                    //'data-description' => $part->getDescription(),
+                    'data-description' => mb_strimwidth($part->getDescription(), 0, 127, '...'),
-                    //'data-category' => $part->getCategory() ? $part->getCategory()->getName() : '',
+                    'data-category' => $part->getCategory() ? $part->getCategory()->getName() : '',
+                    'data-footprint' => $part->getFootprint() ? $part->getFootprint()->getName() : '',
+                    'data-image' => $preview_url,
                 ] : [];
             })
         ]);
     }
 
-    public function getParent()
+    public function getBlockPrefix()
     {
-        return EntityType::class;
+        return 'part_select';
     }
+
+    public function mapDataToForms($data, $forms)
+    {
+        $form = current(iterator_to_array($forms, false));
+        $form->setData($data);
+    }
+
+    public function mapFormsToData($forms, &$data)
+    {
+        $form = current(iterator_to_array($forms, false));
+        $data = $form->getData();
+    }
+
 }

templates/Form/extendedBootstrap4_layout.html.twig

@@ -124,3 +124,7 @@
 
     {{- block("choice_widget_collapsed", "bootstrap_base_layout.html.twig") -}}
 {%- endblock choice_widget_collapsed -%}
+
+{% block part_select_widget %}
+    {{ form_widget(form.autocomplete) }}
+{% endblock %}