Form and theme improvements (#513)

src/Form/Extension/SelectWithApiDataExtension.php

@@ -0,0 +1,85 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Form\Extension;
+
+use Symfony\Bridge\Doctrine\Form\Type\EntityType;
+use Symfony\Component\Form\AbstractTypeExtension;
+use Symfony\Component\Form\FormInterface;
+use Symfony\Component\Form\FormView;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+
+/**
+ * Support Remote-API calls for Entity select-boxes.
+ */
+class SelectWithApiDataExtension extends AbstractTypeExtension
+{
+    /**
+     * @var UrlGeneratorInterface
+     */
+    private $router;
+
+    /**
+     * @param UrlGeneratorInterface $router
+     */
+    public function __construct(UrlGeneratorInterface $router)
+    {
+        $this->router = $router;
+    }
+
+    /**
+     * @return string
+     */
+    public function getExtendedType()
+    {
+        return EntityType::class;
+    }
+
+    /**
+     * @param FormView $view
+     * @param FormInterface $form
+     * @param array $options
+     */
+    public function buildView(FormView $view, FormInterface $form, array $options)
+    {
+        if (!isset($options['api_data'])) {
+            return;
+        }
+
+        $apiData = $options['api_data'];
+
+        if (!isset($apiData['select'])) {
+            throw new \InvalidArgumentException('Missing "select" option for "api_data" option for form "' . $form->getName() . '"');
+        }
+
+        if (!isset($apiData['route'])) {
+            throw new \InvalidArgumentException('Missing "route" option for "api_data" option for form "' . $form->getName() . '"');
+        }
+
+        if (!isset($apiData['route_params'])) {
+            $apiData['route_params'] = [];
+        }
+
+        $view->vars['attr'] = array_merge($view->vars['attr'], [
+            'data-related-select' => $form->getParent()->getName() . '_' . $apiData['select'],
+            'data-api-url' => $this->router->generate($apiData['route'], $apiData['route_params']),
+        ]);
+    }
+
+    /**
+     * @param OptionsResolver $resolver
+     */
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setDefined(['api_data']);
+        $resolver->setAllowedTypes('api_data', 'array');
+        //$resolver->setDefault('api_data', []);
+    }
+}