feat(tasks): add db sanitation task

src/PagesectionSanitizeTask.php

@@ -0,0 +1,76 @@
+<?php
+
+use FLXLabs\PageSections\PageElement;
+use FLXLabs\PageSections\PageElementSelfRel;
+use FLXLabs\PageSections\PageSectionPageElementRel;
+use SilverStripe\Dev\BuildTask;
+use SilverStripe\Security\Permission;
+use SilverStripe\Security\Security;
+use SilverStripe\Versioned\Versioned;
+
+/**
+ * Cleans up leftover relations
+ */
+class PagesectionSanitizeTask extends BuildTask
+{
+
+    private static $segment = 'PagesectionSanitizeTask';
+
+    protected $title = 'Sanitizes the db from broken relations caused by a bug in the PageSections module';
+
+    protected $description = 'Affected version: dev-feature/ss4-treeview#0c33dfe98b17e3d88127ff1b3f70fc7c443e040f. Note: you will have to unpublish and publish the affected pages again';
+
+    public function run($request)
+    {
+        if (!Permission::check('ADMIN') && !Director::is_cli()) {
+            $response = Security::permissionFailure();
+            if ($response) {
+                $response->output();
+            }
+            die;
+        }
+
+        $stages = [Versioned::DRAFT];
+        foreach ($stages as $stage) {
+            Versioned::set_stage($stage);
+            foreach (Page::get() as $page) {
+                echo "Page: " . $page->URLSegment . "<br>";
+                foreach ($page->getPageSectionNames() as $sectionName) {
+                    $section = $page->__get("PageSection{$sectionName}");
+                    echo "Section: " . $section->ID . "<br>";
+                    $trustedElementIds = $section->Elements()->Column("ID");
+                    $untrustedElementIds = PageSectionPageElementRel::get()->Filter("PageSectionID", $section->ID)->Column("ElementID");
+                    $toDelete = array_diff($untrustedElementIds, $trustedElementIds);
+                    echo "trusted:<br>";
+                    echo implode($trustedElementIds, ", ");
+                    echo "<br>untrusted:<br>";
+                    echo implode($untrustedElementIds, ", ");
+                    if (count($toDelete)) {
+                        echo "<br>to delete:<br>";
+                        echo implode($toDelete, ", ");
+                        $section->Elements()->removeMany($toDelete);
+                    }
+                }
+                echo "<hr>";
+            }
+
+            foreach (PageElement::get() as $element) {
+                echo "Element: " . $element->ID . "<br>";
+                $trustedElementIds = $element->Children()->Column("ID");
+                $untrustedElementIds = PageElementSelfRel::get()->Filter("ParentID", $element->ID)->Column("ChildID");
+                $toDelete = array_diff($untrustedElementIds, $trustedElementIds);
+                echo "trusted:<br>";
+                echo implode($trustedElementIds, ", ");
+                echo "<br>untrusted:<br>";
+                echo implode($untrustedElementIds, ", ");
+                if (count($toDelete)) {
+                    echo "<br>to delete:<br>";
+                    echo implode($toDelete, ", ");
+                    $element->Children()->removeMany($toDelete);
+                }
+                echo "<hr>";
+            }
+
+        }
+    }
+}