102 lines
2.7 KiB
Dart
102 lines
2.7 KiB
Dart
import 'package:sqflite/sqflite.dart';
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import 'package:path/path.dart';
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class DatabaseHelper {
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static final DatabaseHelper _instance = DatabaseHelper._internal();
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static Database? _database;
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factory DatabaseHelper() => _instance;
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DatabaseHelper._internal();
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Future<Database> get database async {
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if (_database != null) return _database!;
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_database = await _initDatabase();
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return _database!;
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}
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Future<Database> _initDatabase() async {
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String path = join(await getDatabasesPath(), 'gemi_invoice.db');
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return await openDatabase(
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path,
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version: 2,
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onCreate: _onCreate,
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onUpgrade: _onUpgrade,
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);
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}
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Future<void> _onUpgrade(Database db, int oldVersion, int newVersion) async {
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if (oldVersion < 2) {
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await db.execute('ALTER TABLE invoices ADD COLUMN tax_rate REAL DEFAULT 0.10');
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}
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}
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Future<void> _onCreate(Database db, int version) async {
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// 顧客マスター
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await db.execute('''
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CREATE TABLE customers (
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id TEXT PRIMARY KEY,
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display_name TEXT NOT NULL,
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formal_name TEXT NOT NULL,
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title TEXT DEFAULT '様',
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department TEXT,
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address TEXT,
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tel TEXT,
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odoo_id TEXT,
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is_synced INTEGER DEFAULT 0,
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updated_at TEXT NOT NULL
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)
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''');
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// GPS履歴 (直近10件想定だがDB上は保持)
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await db.execute('''
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CREATE TABLE customer_gps_history (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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customer_id TEXT NOT NULL,
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latitude REAL NOT NULL,
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longitude REAL NOT NULL,
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timestamp TEXT NOT NULL,
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FOREIGN KEY (customer_id) REFERENCES customers (id) ON DELETE CASCADE
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)
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''');
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// 商品マスター
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await db.execute('''
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CREATE TABLE products (
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id TEXT PRIMARY KEY,
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name TEXT NOT NULL,
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default_unit_price INTEGER,
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odoo_id TEXT
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)
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''');
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// 伝票マスター
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await db.execute('''
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CREATE TABLE invoices (
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id TEXT PRIMARY KEY,
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customer_id TEXT NOT NULL,
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date TEXT NOT NULL,
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notes TEXT,
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file_path TEXT,
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total_amount INTEGER,
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tax_rate REAL DEFAULT 0.10,
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odoo_id TEXT,
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is_synced INTEGER DEFAULT 0,
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updated_at TEXT NOT NULL,
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FOREIGN KEY (customer_id) REFERENCES customers (id)
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)
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''');
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// 伝票明細
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await db.execute('''
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CREATE TABLE invoice_items (
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id TEXT PRIMARY KEY,
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invoice_id TEXT NOT NULL,
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description TEXT NOT NULL,
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quantity INTEGER NOT NULL,
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unit_price INTEGER NOT NULL,
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FOREIGN KEY (invoice_id) REFERENCES invoices (id) ON DELETE CASCADE
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)
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''');
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}
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}
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