Show the permissions a user have on the user info page.

src/Form/Permissions/PermissionsMapper.php

@@ -0,0 +1,128 @@
+<?php
+/**
+ *
+ * part-db version 0.1
+ * Copyright (C) 2005 Christoph Lechner
+ * http://www.cl-projects.de/
+ *
+ * part-db version 0.2+
+ * Copyright (C) 2009 K. Jacobs and others (see authors.php)
+ * http://code.google.com/p/part-db/
+ *
+ * Part-DB Version 0.4+
+ * Copyright (C) 2016 - 2019 Jan Böhmer
+ * https://github.com/jbtronics
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ *
+ */
+
+namespace App\Form\Permissions;
+
+
+use App\Services\PermissionResolver;
+use Symfony\Component\Form\DataMapperInterface;
+use Symfony\Component\Form\FormInterface;
+
+/**
+ * This class is a data mapper that maps the permission data from DB (accessed via a PermissionResolver),
+ * to TristateCheckboxes and vice versa.
+ */
+class PermissionsMapper implements DataMapperInterface
+{
+    protected $resolver;
+    protected $inherit;
+
+    public function __construct(PermissionResolver $resolver, bool $inherit = false)
+    {
+        $this->inherit = $inherit;
+        $this->resolver = $resolver;
+    }
+
+    /**
+     * Maps the view data of a compound form to its children.
+     *
+     * The method is responsible for calling {@link FormInterface::setData()}
+     * on the children of compound forms, defining their underlying model data.
+     *
+     * @param mixed $viewData View data of the compound form being initialized
+     * @param FormInterface[]|\Traversable $forms A list of {@link FormInterface} instances
+     *
+     */
+    public function mapDataToForms($viewData, $forms)
+    {
+        foreach ($forms as $form) {
+            if ($this->inherit) {
+                $value = $this->resolver->inherit(
+                    $viewData,
+                    $form->getParent()->getConfig()->getOption('perm_name'),
+                    $form->getName()
+                ) ?? false;
+            } else {
+                $value = $this->resolver->dontInherit(
+                    $viewData,
+                    $form->getParent()->getConfig()->getOption('perm_name'),
+                    $form->getName()
+                );
+            }
+            $form->setData($value);
+        }
+    }
+
+    /**
+     * Maps the model data of a list of children forms into the view data of their parent.
+     *
+     * This is the internal cascade call of FormInterface::submit for compound forms, since they
+     * cannot be bound to any input nor the request as scalar, but their children may:
+     *
+     *     $compoundForm->submit($arrayOfChildrenViewData)
+     *     // inside:
+     *     $childForm->submit($childViewData);
+     *     // for each entry, do the same and/or reverse transform
+     *     $this->dataMapper->mapFormsToData($compoundForm, $compoundInitialViewData)
+     *     // then reverse transform
+     *
+     * When a simple form is submitted the following is happening:
+     *
+     *     $simpleForm->submit($submittedViewData)
+     *     // inside:
+     *     $this->viewData = $submittedViewData
+     *     // then reverse transform
+     *
+     * The model data can be an array or an object, so this second argument is always passed
+     * by reference.
+     *
+     * @param FormInterface[]|\Traversable $forms A list of {@link FormInterface} instances
+     * @param mixed $viewData The compound form's view data that get mapped
+     *                                               its children model data
+     *
+     */
+    public function mapFormsToData($forms, &$viewData)
+    {
+        if ($this->inherit) {
+            throw new \RuntimeException('The permission type is readonly when it is showing read only data!');
+        }
+
+        foreach ($forms as $form) {
+            $value = $form->getData();
+            $this->resolver->setPermission(
+                $viewData,
+                $form->getParent()->getConfig()->getOption('perm_name'),
+                $form->getName(),
+                $value
+            );
+        }
+    }
+}