first commit

src/Helper/FilterFormHelper.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace AlterPHP\EasyAdminExtensionBundle\Helper;
+
+use Symfony\Component\Form\FormFactoryInterface;
+
+/**
+ * This file is part of the EasyAdmin Extension package.
+ */
+class FilterFormHelper
+{
+    /**
+     * @var FormFactoryInterface
+     */
+    private $formFactory;
+
+    /**
+     * @var array
+     */
+    private $easyAdminConfig;
+
+    /**
+     * @param FormFactoryInterface $formFactory
+     * @param array                $easyAdminConfig
+     */
+    public function __construct(FormFactoryInterface $formFactory, array $easyAdminConfig)
+    {
+        $this->formFactory = $formFactory;
+        $this->easyAdminConfig = $easyAdminConfig;
+    }
+
+    public function generateFilterForm(string $entityName)
+    {
+        dump(func_get_args());
+        die;
+    }
+}

src/Twig/FilterFormExtension.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace AlterPHP\EasyAdminExtensionBundle\Twig;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+class FilterFormExtension extends AbstractExtension
+{
+    protected $filterFormHelper;
+
+    public function __construct($filterFormHelper)
+    {
+        $this->filterFormHelper = $filterFormHelper;
+    }
+
+    public function getFunctions()
+    {
+        return array(
+            new TwigFunction('filter_form', array($this, 'getFilterForm')),
+        );
+    }
+
+    public function getFilterForm(string $entityName)
+    {
+        return $this->filterFormHelper->generateFilterForm($entityName);
+    }
+}