First version, for githup; UNSTABLE, DO NOT USE!

www/intern/scripts/riegeneinteilung/ajax_delete_specific_abt.php

@@ -0,0 +1,74 @@
+<?php
+
+ini_set('display_errors', 1);
+ini_set('display_startup_errors', 1);
+// Show all errors except deprecation notices (these come from vendor libraries
+// that aren't yet typed for newer PHP versions). Long-term fix: update
+// dependencies to versions compatible with your PHP runtime.
+error_reporting(E_ALL & ~E_DEPRECATED & ~E_USER_DEPRECATED);
+
+
+if (session_status() !== PHP_SESSION_ACTIVE) session_start();
+
+if (empty($_SESSION['access_granted_wk_leitung']) || $_SESSION['access_granted_wk_leitung'] !== true || empty($_SESSION['passcodewk_leitung_id']) || intval($_SESSION['passcodewk_leitung_id']) < 0 ) {
+    http_response_code(403);
+	exit;
+}
+
+// Validate input
+if (!isset($_POST['abt']) || !ctype_digit($_POST['abt'])) {
+    http_response_code(406);
+    exit;
+}
+
+$abtInput = (int) $_POST['abt'];
+
+if (!isset($baseDir)) {
+    $baseDir = $_SERVER['DOCUMENT_ROOT'];
+}
+
+$type = 'wkl';
+
+$dbconnection = require $baseDir . '/../scripts/db/db-verbindung-script.php';
+
+if ($dbconnection['success'] !== true){
+    echo 'Critical DB Error.';
+    exit;
+}
+
+require $baseDir . '/../scripts/db/db-functions.php';
+require $baseDir . '/../scripts/db/db-tables.php';
+
+// Fetch existing Abteilungen ordered by name
+$abts = db_select($mysqli, $tableAbt, '*', '', [], 'name ASC');
+
+$deleteId = null;
+$deleteIndex = null;
+
+foreach ($abts as $ind => $abt) {
+    if ((int)$abt['name'] === (int)$abtInput) {
+        $deleteId = (int)$abt['id'];
+        $deleteIndex = $ind;
+        break;
+    }
+}
+
+if ($deleteId === null) {
+    http_response_code(406);
+    exit;
+}
+
+// Delete selected row
+db_delete($mysqli, $tableAbt, ['id' => $deleteId]);
+
+// Reindex subsequent rows
+for ($i = $deleteIndex + 1; $i < count($abts); $i++) {
+    db_update(
+        $mysqli,
+        $tableAbt,
+        ['name' => (int)$abts[$i]['name'] - 1],
+        ['id'   => (int)$abts[$i]['id']]
+    );
+}
+
+http_response_code(201);