';
-}
-
-// --- 2. Fetch Data for Dropdowns ---
-$available_users = [];
-$available_todo_lists = [];
-if ($can_edit) {
- // Owners: Creator + Household Members (if shared)
- if ($packing_list['household_id']) {
- $stmt = $conn->prepare("SELECT id, COALESCE(NULLIF(display_name, ''), username) AS username FROM users WHERE household_id = ?");
- $stmt->bind_param("i", $packing_list['household_id']);
- } else {
- $stmt = $conn->prepare("SELECT id, COALESCE(NULLIF(display_name, ''), username) AS username FROM users WHERE id = ?");
- $stmt->bind_param("i", $packing_list['user_id']);
- }
- $stmt->execute();
- $res = $stmt->get_result();
- while ($row = $res->fetch_assoc()) {
- $available_users[] = $row;
- }
-
- // Fetch Todo Lists
- $stmt_tl = $conn->prepare("SELECT id, name FROM todo_lists WHERE user_id = ? OR (household_id IS NOT NULL AND household_id = ?)");
- $stmt_tl->bind_param("ii", $current_user_id, $current_user_household_id);
- $stmt_tl->execute();
- $res_tl = $stmt_tl->get_result();
- while ($row = $res_tl->fetch_assoc()) {
- $available_todo_lists[] = $row;
- }
- $stmt_tl->close();
-
- // Current Assignments
- $current_assignments = [];
- $stmt_ca = $conn->prepare("SELECT user_id, backpack_id FROM packing_list_carriers WHERE packing_list_id = ?");
- $stmt_ca->bind_param("i", $packing_list_id);
- $stmt_ca->execute();
- $res_ca = $stmt_ca->get_result();
- while ($row = $res_ca->fetch_assoc()) {
- $current_assignments[$row['user_id']] = $row['backpack_id'];
- }
-}
-
-// --- 3. Handle Form Submission ---
-if ($_SERVER["REQUEST_METHOD"] == "POST" && $can_edit) {
- // Update Basic Details
- $name = trim($_POST['name']);
- $description = trim($_POST['description']);
-
- // Household sharing logic
- $new_household_id = NULL;
- if (isset($_POST['is_household_list']) && $_POST['is_household_list'] == '1' && $current_user_household_id) {
- $new_household_id = $current_user_household_id;
- }
-
- $todo_list_id = !empty($_POST['todo_list_id']) ? intval($_POST['todo_list_id']) : NULL;
-
- $stmt_update = $conn->prepare("UPDATE packing_lists SET name = ?, description = ?, household_id = ?, todo_list_id = ? WHERE id = ?");
- $stmt_update->bind_param("sssii", $name, $description, $new_household_id, $todo_list_id, $packing_list_id);
- $stmt_update->execute();
- $packing_list['name'] = $name;
- $packing_list['description'] = $description;
- $packing_list['household_id'] = $new_household_id;
- $packing_list['todo_list_id'] = $todo_list_id;
-
- // Handle Participation & Backpacks
- // Get all potential users to check if they were unchecked
- $participate_map = $_POST['participate'] ?? []; // Array of UserID => "1" if checked
-
- foreach ($available_users as $user) {
- $uid = $user['id'];
- $is_checked = isset($participate_map[$uid]);
- $was_participating = array_key_exists($uid, $current_assignments);
-
- if ($is_checked) {
- // User participates -> Update/Insert Backpack
- $bid = isset($_POST['backpacks'][$uid]) ? intval($_POST['backpacks'][$uid]) : 0;
- $bid = ($bid > 0) ? $bid : NULL;
-
- if ($was_participating) {
- $old_bid = $current_assignments[$uid];
- // Update if changed
- if ($old_bid != $bid) {
- $stmt_up = $conn->prepare("UPDATE packing_list_carriers SET backpack_id = ? WHERE packing_list_id = ? AND user_id = ?");
- $stmt_up->bind_param("iii", $bid, $packing_list_id, $uid);
- $stmt_up->execute();
-
- // Cleanup Old Containers
- cleanup_old_backpack_containers($conn, $packing_list_id, $uid);
-
- // Sync New
- if ($bid) {
- sync_backpack_items($conn, $packing_list_id, $uid, $bid);
- }
- }
- } else {
- // New Participant
- $stmt_in = $conn->prepare("INSERT INTO packing_list_carriers (packing_list_id, user_id, backpack_id) VALUES (?, ?, ?)");
- $stmt_in->bind_param("iii", $packing_list_id, $uid, $bid);
- $stmt_in->execute();
-
- if ($bid) {
- sync_backpack_items($conn, $packing_list_id, $uid, $bid);
- }
- }
- } else {
- // User NOT checked -> Remove if existed
- if ($was_participating) {
- $conn->query("DELETE FROM packing_list_carriers WHERE packing_list_id = $packing_list_id AND user_id = $uid");
- // Cleanup Items: Delete all items carried by this user?
- // Or move to unassigned? Let's move to unassigned (NULL) to be safe against data loss.
- // But Containers (Backpacks) should be deleted.
-
- // 1. Delete Containers
- cleanup_old_backpack_containers($conn, $packing_list_id, $uid);
-
- // 2. Move remaining items (loose items) to unassigned?
- $conn->query("UPDATE packing_list_items SET carrier_user_id = NULL WHERE packing_list_id = $packing_list_id AND carrier_user_id = $uid");
- }
- }
- }
-
- $message = '
Änderungen gespeichert!
';
- // Refresh assignments
- $stmt_ca->execute();
- $res_ca = $stmt_ca->get_result();
- $current_assignments = [];
- while ($row = $res_ca->fetch_assoc()) {
- $current_assignments[$row['user_id']] = $row['backpack_id'];
- }
-}
-
-function cleanup_old_backpack_containers($conn, $list_id, $user_id) {
- // Find all container items for this user (backpacks or compartments)
- $stmt = $conn->prepare("SELECT id FROM packing_list_items WHERE packing_list_id = ? AND carrier_user_id = ? AND (backpack_id IS NOT NULL OR backpack_compartment_id IS NOT NULL)");
- $stmt->bind_param("ii", $list_id, $user_id);
- $stmt->execute();
- $res = $stmt->get_result();
- $container_ids = [];
- while ($r = $res->fetch_assoc()) $container_ids[] = $r['id'];
-
- if (!empty($container_ids)) {
- $ids_str = implode(',', $container_ids);
- // Unparent children so they don't get deleted (or keep them and they get deleted? No, save content)
- // Set parent to NULL for children of these containers
- $conn->query("UPDATE packing_list_items SET parent_packing_list_item_id = NULL WHERE packing_list_id = $list_id AND parent_packing_list_item_id IN ($ids_str)");
-
- // Delete containers
- $conn->query("DELETE FROM packing_list_items WHERE id IN ($ids_str)");
- }
-}
-
-$back_link = 'packing_lists.php' . (!empty($packing_list['is_template']) ? '?view=templates' : '');
-$page_headline = !empty($packing_list['is_template']) ? 'Vorlage bearbeiten' : 'Details bearbeiten';
-
-?>
-
-