48 lines
1.8 KiB
PHP
48 lines
1.8 KiB
PHP
<?php
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const STARTING_CREDITS = 3;
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function getDbConnection(): PDO
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{
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static $pdo = null;
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if ($pdo === null) {
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$dbPath = __DIR__ . '/../app.sqlite';
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$pdo = new PDO('sqlite:' . $dbPath);
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$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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$pdo->exec('PRAGMA foreign_keys = ON');
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$pdo->exec('PRAGMA busy_timeout = 5000');
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// WAL lets readers proceed without blocking a writer's commit (and vice versa),
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// which the default rollback-journal mode doesn't: two concurrent requests each
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// holding open, unfetched-to-completion statement handles could otherwise make a
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// writer's COMMIT fail with "database is locked" even within the busy_timeout.
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$pdo->exec('PRAGMA journal_mode = WAL');
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$pdo->exec('CREATE TABLE IF NOT EXISTS users (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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username TEXT NOT NULL UNIQUE,
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email TEXT NOT NULL UNIQUE,
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password TEXT NOT NULL,
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credits INTEGER NOT NULL DEFAULT 0
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)');
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$userColumns = $pdo->query('PRAGMA table_info(users)')->fetchAll(PDO::FETCH_COLUMN, 1);
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if (!in_array('credits', $userColumns, true)) {
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$pdo->exec('ALTER TABLE users ADD COLUMN credits INTEGER NOT NULL DEFAULT 0');
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}
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if (!in_array('email_verified_at', $userColumns, true)) {
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$pdo->exec('ALTER TABLE users ADD COLUMN email_verified_at TEXT');
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}
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if (!in_array('session_version', $userColumns, true)) {
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$pdo->exec('ALTER TABLE users ADD COLUMN session_version INTEGER NOT NULL DEFAULT 0');
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}
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}
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return $pdo;
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}
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function rowExistsById(PDO $pdo, string $table, $id): bool
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{
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$stmt = $pdo->prepare("SELECT 1 FROM {$table} WHERE id = :id");
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$stmt->execute(['id' => $id]);
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return (bool) $stmt->fetch();
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}
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