feat: P2 strankovani - PaginationHelper, Pagination komponenta, integrace do 4 modulu

- PaginationHelper.php: parseParams() + paginate() - DRY backend pagination logika
- Pagination.jsx: frontend strankovaci komponenta (prev/next/cisla/info)
- CSS: .admin-pagination styly v admin.css
- Refaktor handleru: offers, orders, invoices, projects pouzivaji PaginationHelper
- Default 25 zaznamu na stranku (misto 500), max 500
- Frontend: page state + reset na search/filter zmenu
- useListData: pagination data v response

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-03-12 18:07:29 +01:00
parent 6ad20ea04e
commit 6863c7c557
15 changed files with 372 additions and 177 deletions

View File

@@ -169,12 +169,7 @@ function handleGetStats(PDO $pdo): void
function handleGetList(PDO $pdo): void
{
$search = trim($_GET['search'] ?? '');
$statusFilter = trim($_GET['status'] ?? '');
$sort = $_GET['sort'] ?? 'created_at';
$order = strtoupper($_GET['order'] ?? 'DESC') === 'ASC' ? 'ASC' : 'DESC';
$page = max(1, (int) ($_GET['page'] ?? 1));
$perPage = min(500, max(1, (int) ($_GET['per_page'] ?? 500)));
$sortMap = [
'InvoiceNumber' => 'i.invoice_number',
@@ -188,10 +183,8 @@ function handleGetList(PDO $pdo): void
'IssueDate' => 'i.issue_date',
'issue_date' => 'i.issue_date',
];
if (!isset($sortMap[$sort])) {
errorResponse('Neplatný parametr řazení', 400);
}
$sortCol = $sortMap[$sort];
$p = PaginationHelper::parseParams($sortMap);
// Lazy overdue detekce
$pdo->exec("UPDATE invoices SET status = 'overdue' WHERE status = 'issued' AND due_date < CURDATE()");
@@ -199,10 +192,9 @@ function handleGetList(PDO $pdo): void
$where = 'WHERE 1=1';
$params = [];
if ($search) {
$search = mb_substr($search, 0, 100);
if ($p['search']) {
$where .= ' AND (i.invoice_number LIKE ? OR c.name LIKE ? OR c.company_id LIKE ?)';
$searchParam = "%{$search}%";
$searchParam = "%{$p['search']}%";
$params = array_merge($params, [$searchParam, $searchParam, $searchParam]);
}
@@ -215,36 +207,26 @@ function handleGetList(PDO $pdo): void
}
}
$countSql = "
SELECT COUNT(*)
FROM invoices i
$from = "FROM invoices i
LEFT JOIN customers c ON i.customer_id = c.id
$where
";
$stmt = $pdo->prepare($countSql);
$stmt->execute($params);
$total = (int) $stmt->fetchColumn();
LEFT JOIN orders o ON i.order_id = o.id";
$offset = ($page - 1) * $perPage;
$sql = "
SELECT i.id, i.invoice_number, i.order_id, i.status, i.currency,
$result = PaginationHelper::paginate(
$pdo,
"SELECT COUNT(*) FROM invoices i LEFT JOIN customers c ON i.customer_id = c.id {$where}",
"SELECT i.id, i.invoice_number, i.order_id, i.status, i.currency,
i.issue_date, i.due_date, i.paid_date, i.created_at, i.apply_vat,
c.name as customer_name,
(SELECT COALESCE(SUM(ii.quantity * ii.unit_price), 0)
FROM invoice_items ii WHERE ii.invoice_id = i.id) as subtotal,
o.order_number
FROM invoices i
LEFT JOIN customers c ON i.customer_id = c.id
LEFT JOIN orders o ON i.order_id = o.id
$where
ORDER BY $sortCol $order
LIMIT $perPage OFFSET $offset
";
{$from} {$where}
ORDER BY {$p['sort']} {$p['order']}",
$params,
$p
);
$stmt = $pdo->prepare($sql);
$stmt->execute($params);
$invoices = $stmt->fetchAll();
$invoices = $result['items'];
// Dopocitat celkovou castku s DPH
foreach ($invoices as &$inv) {
@@ -265,9 +247,7 @@ function handleGetList(PDO $pdo): void
successResponse([
'invoices' => $invoices,
'total' => $total,
'page' => $page,
'per_page' => $perPage,
'pagination' => $result['pagination'],
]);
}

View File

@@ -4,12 +4,6 @@ declare(strict_types=1);
function handleGetList(PDO $pdo): void
{
$search = trim($_GET['search'] ?? '');
$sort = $_GET['sort'] ?? 'created_at';
$order = strtoupper($_GET['order'] ?? 'DESC') === 'ASC' ? 'ASC' : 'DESC';
$page = max(1, (int) ($_GET['page'] ?? 1));
$perPage = min(500, max(1, (int) ($_GET['per_page'] ?? 500)));
$sortMap = [
'Date' => 'q.created_at',
'CreatedAt' => 'q.created_at',
@@ -23,57 +17,37 @@ function handleGetList(PDO $pdo): void
'Currency' => 'q.currency',
'currency' => 'q.currency',
];
if (!isset($sortMap[$sort])) {
errorResponse('Neplatný parametr řazení', 400);
}
$sortCol = $sortMap[$sort];
$p = PaginationHelper::parseParams($sortMap);
$where = 'WHERE 1=1';
$params = [];
if ($search) {
$search = mb_substr($search, 0, 100);
if ($p['search']) {
$where .= ' AND (q.quotation_number LIKE ? OR q.project_code LIKE ? OR c.name LIKE ?)';
$searchParam = "%{$search}%";
$searchParam = "%{$p['search']}%";
$params = [$searchParam, $searchParam, $searchParam];
}
// Celkovy pocet pro pagination
$countSql = "
SELECT COUNT(*)
FROM quotations q
LEFT JOIN customers c ON q.customer_id = c.id
$where
";
$stmt = $pdo->prepare($countSql);
$stmt->execute($params);
$total = (int) $stmt->fetchColumn();
$from = "FROM quotations q LEFT JOIN customers c ON q.customer_id = c.id";
$offset = ($page - 1) * $perPage;
$sql = "
SELECT q.id, q.quotation_number, q.project_code, q.created_at, q.valid_until,
$result = PaginationHelper::paginate(
$pdo,
"SELECT COUNT(*) {$from} {$where}",
"SELECT q.id, q.quotation_number, q.project_code, q.created_at, q.valid_until,
q.currency, q.language, q.apply_vat, q.vat_rate, q.exchange_rate,
q.customer_id, q.order_id, q.status,
c.name as customer_name,
(SELECT COALESCE(SUM(CASE WHEN qi.is_included_in_total THEN qi.quantity * qi.unit_price ELSE 0 END), 0)
FROM quotation_items qi WHERE qi.quotation_id = q.id) as total
FROM quotations q
LEFT JOIN customers c ON q.customer_id = c.id
$where
ORDER BY $sortCol $order
LIMIT $perPage OFFSET $offset
";
$stmt = $pdo->prepare($sql);
$stmt->execute($params);
$quotations = $stmt->fetchAll();
{$from} {$where}
ORDER BY {$p['sort']} {$p['order']}",
$params,
$p
);
successResponse([
'quotations' => $quotations,
'total' => $total,
'page' => $page,
'per_page' => $perPage,
'quotations' => $result['items'],
'pagination' => $result['pagination'],
]);
}

View File

@@ -25,12 +25,6 @@ function generateOrderNumber(PDO $pdo): string
function handleGetList(PDO $pdo): void
{
$search = trim($_GET['search'] ?? '');
$sort = $_GET['sort'] ?? 'created_at';
$order = strtoupper($_GET['order'] ?? 'DESC') === 'ASC' ? 'ASC' : 'DESC';
$page = max(1, (int) ($_GET['page'] ?? 1));
$perPage = min(500, max(1, (int) ($_GET['per_page'] ?? 500)));
$sortMap = [
'OrderNumber' => 'o.order_number',
'order_number' => 'o.order_number',
@@ -41,36 +35,25 @@ function handleGetList(PDO $pdo): void
'Currency' => 'o.currency',
'currency' => 'o.currency',
];
if (!isset($sortMap[$sort])) {
errorResponse('Neplatný parametr řazení', 400);
}
$sortCol = $sortMap[$sort];
$p = PaginationHelper::parseParams($sortMap);
$where = 'WHERE 1=1';
$params = [];
if ($search) {
$search = mb_substr($search, 0, 100);
if ($p['search']) {
$where .= ' AND (o.order_number LIKE ? OR q.quotation_number LIKE ? OR q.project_code LIKE ? OR c.name LIKE ?)';
$searchParam = "%{$search}%";
$searchParam = "%{$p['search']}%";
$params = [$searchParam, $searchParam, $searchParam, $searchParam];
}
$countSql = "
SELECT COUNT(*)
FROM orders o
$from = "FROM orders o
LEFT JOIN quotations q ON o.quotation_id = q.id
LEFT JOIN customers c ON o.customer_id = c.id
$where
";
$stmt = $pdo->prepare($countSql);
$stmt->execute($params);
$total = (int) $stmt->fetchColumn();
LEFT JOIN customers c ON o.customer_id = c.id";
$offset = ($page - 1) * $perPage;
$sql = "
SELECT o.id, o.order_number, o.quotation_id, o.status, o.currency,
$result = PaginationHelper::paginate(
$pdo,
"SELECT COUNT(*) {$from} {$where}",
"SELECT o.id, o.order_number, o.quotation_id, o.status, o.currency,
o.created_at, o.apply_vat, o.vat_rate,
q.quotation_number, q.project_code,
c.name as customer_name,
@@ -78,23 +61,15 @@ function handleGetList(PDO $pdo): void
FROM order_items oi WHERE oi.order_id = o.id) as total,
(SELECT inv.id FROM invoices inv WHERE inv.order_id = o.id LIMIT 1) as invoice_id,
(SELECT inv.invoice_number FROM invoices inv WHERE inv.order_id = o.id LIMIT 1) as invoice_number
FROM orders o
LEFT JOIN quotations q ON o.quotation_id = q.id
LEFT JOIN customers c ON o.customer_id = c.id
$where
ORDER BY $sortCol $order
LIMIT $perPage OFFSET $offset
";
$stmt = $pdo->prepare($sql);
$stmt->execute($params);
$orders = $stmt->fetchAll();
{$from} {$where}
ORDER BY {$p['sort']} {$p['order']}",
$params,
$p
);
successResponse([
'orders' => $orders,
'total' => $total,
'page' => $page,
'per_page' => $perPage,
'orders' => $result['items'],
'pagination' => $result['pagination'],
]);
}

View File

@@ -156,12 +156,6 @@ function handleDeleteProject(PDO $pdo, int $id): void
function handleGetList(PDO $pdo): void
{
$search = trim($_GET['search'] ?? '');
$sort = $_GET['sort'] ?? 'created_at';
$order = strtoupper($_GET['order'] ?? 'DESC') === 'ASC' ? 'ASC' : 'DESC';
$page = max(1, (int) ($_GET['page'] ?? 1));
$perPage = min(500, max(1, (int) ($_GET['per_page'] ?? 500)));
$sortMap = [
'ProjectNumber' => 'p.project_number',
'project_number' => 'p.project_number',
@@ -176,56 +170,37 @@ function handleGetList(PDO $pdo): void
'CreatedAt' => 'p.created_at',
'created_at' => 'p.created_at',
];
if (!isset($sortMap[$sort])) {
errorResponse('Neplatný parametr řazení', 400);
}
$sortCol = $sortMap[$sort];
$p = PaginationHelper::parseParams($sortMap);
$where = 'WHERE 1=1';
$params = [];
if ($search) {
$search = mb_substr($search, 0, 100);
if ($p['search']) {
$where .= ' AND (p.project_number LIKE ? OR p.name LIKE ? OR c.name LIKE ?)';
$searchParam = "%{$search}%";
$searchParam = "%{$p['search']}%";
$params = [$searchParam, $searchParam, $searchParam];
}
$countSql = "
SELECT COUNT(*)
FROM projects p
$from = "FROM projects p
LEFT JOIN customers c ON p.customer_id = c.id
LEFT JOIN orders o ON p.order_id = o.id
$where
";
$stmt = $pdo->prepare($countSql);
$stmt->execute($params);
$total = (int) $stmt->fetchColumn();
LEFT JOIN orders o ON p.order_id = o.id";
$offset = ($page - 1) * $perPage;
$sql = "
SELECT p.id, p.project_number, p.name, p.status, p.start_date, p.end_date,
$result = PaginationHelper::paginate(
$pdo,
"SELECT COUNT(*) {$from} {$where}",
"SELECT p.id, p.project_number, p.name, p.status, p.start_date, p.end_date,
p.order_id, p.quotation_id, p.created_at,
c.name as customer_name,
o.order_number
FROM projects p
LEFT JOIN customers c ON p.customer_id = c.id
LEFT JOIN orders o ON p.order_id = o.id
$where
ORDER BY $sortCol $order
LIMIT $perPage OFFSET $offset
";
$stmt = $pdo->prepare($sql);
$stmt->execute($params);
$projects = $stmt->fetchAll();
{$from} {$where}
ORDER BY {$p['sort']} {$p['order']}",
$params,
$p
);
successResponse([
'projects' => $projects,
'total' => $total,
'page' => $page,
'per_page' => $perPage,
'projects' => $result['items'],
'pagination' => $result['pagination'],
]);
}

View File

@@ -19,6 +19,7 @@ require_once dirname(__DIR__) . '/config.php';
require_once dirname(__DIR__) . '/includes/JWTAuth.php';
require_once dirname(__DIR__) . '/includes/AuditLog.php';
require_once dirname(__DIR__) . '/includes/CnbRates.php';
require_once dirname(__DIR__) . '/includes/PaginationHelper.php';
require_once __DIR__ . '/handlers/invoices-handlers.php';
setCorsHeaders();

View File

@@ -18,6 +18,7 @@ declare(strict_types=1);
require_once dirname(__DIR__) . '/config.php';
require_once dirname(__DIR__) . '/includes/JWTAuth.php';
require_once dirname(__DIR__) . '/includes/AuditLog.php';
require_once dirname(__DIR__) . '/includes/PaginationHelper.php';
require_once __DIR__ . '/handlers/offers-handlers.php';
setCorsHeaders();

View File

@@ -15,6 +15,7 @@ declare(strict_types=1);
require_once dirname(__DIR__) . '/config.php';
require_once dirname(__DIR__) . '/includes/JWTAuth.php';
require_once dirname(__DIR__) . '/includes/AuditLog.php';
require_once dirname(__DIR__) . '/includes/PaginationHelper.php';
require_once __DIR__ . '/handlers/orders-handlers.php';
setCorsHeaders();

View File

@@ -18,6 +18,7 @@ declare(strict_types=1);
require_once dirname(__DIR__) . '/config.php';
require_once dirname(__DIR__) . '/includes/JWTAuth.php';
require_once dirname(__DIR__) . '/includes/AuditLog.php';
require_once dirname(__DIR__) . '/includes/PaginationHelper.php';
require_once __DIR__ . '/handlers/projects-handlers.php';
setCorsHeaders();

View File

@@ -0,0 +1,82 @@
<?php
/**
* Pagination helper - extrakce spolecne logiky pro strankovani seznamu.
*/
declare(strict_types=1);
class PaginationHelper
{
private const DEFAULT_PER_PAGE = 25;
private const MAX_PER_PAGE = 500;
/**
* Nacte pagination parametry z GET requestu.
*
* @return array{page: int, per_page: int, sort: string, order: string, search: string}
*/
public static function parseParams(array $sortMap, string $defaultSort = 'created_at'): array
{
$sort = $_GET['sort'] ?? $defaultSort;
$order = strtoupper($_GET['order'] ?? 'DESC') === 'ASC' ? 'ASC' : 'DESC';
$page = max(1, (int) ($_GET['page'] ?? 1));
$perPage = min(self::MAX_PER_PAGE, max(1, (int) ($_GET['per_page'] ?? self::DEFAULT_PER_PAGE)));
$search = trim($_GET['search'] ?? '');
if (!isset($sortMap[$sort])) {
errorResponse('Neplatný parametr řazení', 400);
}
return [
'page' => $page,
'per_page' => $perPage,
'sort' => $sortMap[$sort],
'order' => $order,
'search' => $search ? mb_substr($search, 0, 100) : '',
];
}
/**
* Spusti COUNT + SELECT dotazy s pagination a vrati vysledek.
*
* @param PDO $pdo
* @param string $countSql - COUNT(*) dotaz
* @param string $dataSql - SELECT dotaz (bez LIMIT/OFFSET)
* @param array $params - parametry pro prepared statement
* @param array{page: int, per_page: int, sort: string, order: string} $pagination
* @return array{items: array, pagination: array}
*/
public static function paginate(
PDO $pdo,
string $countSql,
string $dataSql,
array $params,
array $pagination
): array {
$page = $pagination['page'];
$perPage = $pagination['per_page'];
$stmt = $pdo->prepare($countSql);
$stmt->execute($params);
$total = (int) $stmt->fetchColumn();
$offset = ($page - 1) * $perPage;
$totalPages = (int) ceil($total / $perPage);
$sql = "{$dataSql} LIMIT {$perPage} OFFSET {$offset}";
$stmt = $pdo->prepare($sql);
$stmt->execute($params);
$items = $stmt->fetchAll();
return [
'items' => $items,
'pagination' => [
'total' => $total,
'page' => $page,
'per_page' => $perPage,
'total_pages' => $totalPages,
],
];
}
}