104 lines
3.1 KiB
PHP
104 lines
3.1 KiB
PHP
<?php
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/**
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* 检查数据库版本是否需要升级
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* 返回 JSON: {needs_upgrade: bool, current: string, target: string}
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*/
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require_once __DIR__ . '/../config.php';
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header('Content-Type: application/json; charset=utf-8');
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// 只有班主任才能检查升级
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if (!isset($_SESSION['user_id']) || $_SESSION['user_type'] !== 'admin') {
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echo json_encode(['error' => '未授权']);
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exit();
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}
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$role = $_SESSION['role'] ?? '';
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if ($role !== '班主任') {
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echo json_encode(['needs_upgrade' => false]);
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exit();
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}
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// 读取后端 .env 获取数据库配置
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$envPath = __DIR__ . '/../../backend/.env';
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if (!file_exists($envPath)) {
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echo json_encode(['error' => '数据库配置文件不存在']);
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exit();
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}
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$lines = file($envPath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
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$dbConfig = [];
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foreach ($lines as $line) {
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$line = trim($line);
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if ($line === '' || strpos($line, '#') === 0) {
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continue;
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}
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if (strpos($line, '=') !== false) {
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list($key, $value) = explode('=', $line, 2);
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$dbConfig[trim($key)] = trim($value);
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}
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}
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$required = ['DB_HOST', 'DB_PORT', 'DB_USER', 'DB_PASSWORD', 'DB_NAME'];
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foreach ($required as $key) {
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if (!isset($dbConfig[$key]) || $dbConfig[$key] === '') {
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echo json_encode(['error' => "缺少数据库配置: {$key}"]);
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exit();
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}
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}
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try {
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$dsn = "mysql:host={$dbConfig['DB_HOST']};port={$dbConfig['DB_PORT']};dbname={$dbConfig['DB_NAME']};charset=utf8mb4";
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$pdo = new PDO($dsn, $dbConfig['DB_USER'], $dbConfig['DB_PASSWORD'], [
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
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]);
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// 检测当前版本
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$currentVersion = '0.0.0';
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try {
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$stmt = $pdo->query("SELECT setting_value FROM system_settings WHERE setting_key = 'db_version'");
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$row = $stmt->fetch(PDO::FETCH_ASSOC);
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if ($row) {
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$currentVersion = $row['setting_value'];
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}
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} catch (PDOException $e) {
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// 表不存在，使用默认值
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}
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// 读取目标版本
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$versionFile = __DIR__ . '/../../VERSION';
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if (!file_exists($versionFile)) {
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echo json_encode(['error' => 'VERSION 文件不存在']);
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exit();
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}
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$targetVersion = trim(file_get_contents($versionFile));
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$needsUpgrade = version_compare($targetVersion, $currentVersion, '>');
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$allVersions = [
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'1.7' => 'v1.7.sql',
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'1.8' => 'v1.8.sql',
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'2.0' => 'v2.0.sql',
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'2.0.1' => 'v2.0.1.sql',
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'2.1' => 'v2.1.sql',
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];
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$steps = [];
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foreach ($allVersions as $version => $file) {
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if (version_compare($version, $currentVersion, '>') &&
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version_compare($version, $targetVersion, '<=')) {
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$steps[] = ['version' => $version, 'file' => $file];
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}
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}
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usort($steps, function($a, $b) { return version_compare($a['version'], $b['version']); });
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echo json_encode([
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'needs_upgrade' => $needsUpgrade,
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'current' => $currentVersion,
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'target' => $targetVersion,
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'steps' => $steps
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]);
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} catch (PDOException $e) {
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echo json_encode(['error' => '数据库连接失败: ' . $e->getMessage()]);
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}
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