91 lines
2.9 KiB
PHP
91 lines
2.9 KiB
PHP
<?php
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namespace App\Console\Commands;
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use Illuminate\Console\Command;
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use Illuminate\Support\Facades\DB;
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use Illuminate\Support\Facades\Config;
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class TransferSqliteToMysql extends Command
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{
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protected $signature = 'transfer:sqlite {path : SQLite 相對路徑（例：sqlite/song.sqlite）} ';
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protected $description = 'Transfer all data from SQLite to MySQL, optionally truncating tables first.';
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public function handle(): int
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{
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$path = ltrim($this->argument('path'), '/');
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$this->info("[Transfer] 開始轉移 SQLite 資料：{$path}");
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if (!file_exists($path)) {
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$this->error("[Transfer] 找不到 SQLite 檔案：{$path}");
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return 1;
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}
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// ✅ 動態產生唯一 connection 名稱
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$connectionName = 'sqlite_' . md5($path . microtime());
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config(["database.connections.{$connectionName}" => [
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'driver' => 'sqlite',
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'database' => $path,
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'prefix' => '',
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]]);
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$this->info("🚀 Starting transfer from SQLite to MySQL...");
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// 讀取 SQLite 資料庫的所有資料表
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$sqliteTables = DB::connection($connectionName)->select("
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SELECT name FROM sqlite_master
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WHERE type='table' AND name NOT LIKE 'sqlite_%';
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");
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if (empty($sqliteTables)) {
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$this->error("❌ No tables found in SQLite database.");
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return 1;
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}
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// 取得 .env 中指定的 MySQL 連線名稱
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$mysqlConnection = config('database.default'); // 默認會是 'mysql'，如果 .env 修改會自動更新
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foreach ($sqliteTables as $tableObj) {
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$table = $tableObj->name;
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// 忽略 Laravel 內部 migration 表
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if ($table === 'migrations') {
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continue;
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}
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$this->info("📦 Transferring table: {$table}");
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try {
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// 用 cursor 來避免一次性佔用過多記憶體
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$rows = DB::connection($connectionName)->table($table)->cursor();
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$buffer = [];
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$count = 0;
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foreach ($rows as $row) {
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$buffer[] = (array) $row;
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$count++;
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if ($count % 500 === 0) {
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DB::connection($mysqlConnection)->table($table)->insert($buffer);
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$buffer = []; // 清空 buffer
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}
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}
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// 插入剩下的資料
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if (!empty($buffer)) {
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DB::connection($mysqlConnection)->table($table)->insert($buffer);
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}
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$this->info("✅ Done: {$table} ({$count} records)");
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} catch (\Exception $e) {
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$this->error("❌ Failed to transfer {$table}: " . $e->getMessage());
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}
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}
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$this->info("🎉 Transfer complete!");
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return 0;
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}
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} |