database-patterns
について
このスキルは、安全なCRUD操作を実現するために、better-sqlite3を使用したプリペアドステートメントによるSQLiteデータベースパターンを提供します。主な機能として、nanoidによる主キー、Unixタイムスタンプの管理、行レベルセキュリティによるユーザースコープのクエリを実装しています。セキュリティのベストプラクティスに沿った構造化されたデータベース連携が必要なアプリケーションを構築する際にご利用ください。
クイックインストール
Claude Code
推奨/plugin add https://github.com/spences10/devhub-crmgit clone https://github.com/spences10/devhub-crm.git ~/.claude/skills/database-patternsこのコマンドをClaude Codeにコピー&ペーストしてスキルをインストールします
ドキュメント
Database Patterns
Quick Start
import { db } from '$lib/server/db';
import { nanoid } from 'nanoid';
// SELECT with user_id (row-level security)
const contact = db
.prepare('SELECT * FROM contacts WHERE id = ? AND user_id = ?')
.get(id, user_id) as Contact | undefined;
// INSERT with nanoid and timestamps
const stmt = db.prepare(
'INSERT INTO contacts (id, user_id, name, created_at, updated_at) VALUES (?, ?, ?, ?, ?)',
);
stmt.run(nanoid(), user_id, name, Date.now(), Date.now());
Core Principles
- Prepared statements: Use for all queries (SQL injection prevention)
- ID generation: Use
nanoid()for all primary keys (no auto-increment) - Timestamps: Store as Unix epoch with
Date.now()(milliseconds) - Row-level security: Always include
user_idin WHERE clause (never query by ID alone) - Transactions: Use for multi-table operations (all-or-nothing)
- Synchronous: better-sqlite3 is sync - no async/await needed
Reference Files
- schema.md - Complete schema with columns and types
- relationships.md - Table relationships and foreign keys
- query-examples.md - Joins, transactions, and advanced patterns
GitHub リポジトリ
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