369 lines
No EOL
12 KiB
Dart
369 lines
No EOL
12 KiB
Dart
// Version: 1.4 (estimate テーブル定義修正・CRUD API 実装)
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import 'package:sqflite/sqflite.dart';
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import 'package:path/path.dart';
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import 'dart:convert';
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import '../models/customer.dart';
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import '../models/product.dart';
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import '../models/estimate.dart';
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class DatabaseHelper {
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static final DatabaseHelper instance = DatabaseHelper._init();
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static Database? _database;
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DatabaseHelper._init();
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Future<Database> get database async {
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if (_database != null) return _database!;
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_database = await _initDB('customer_assist.db');
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return _database!;
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}
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Future<Database> _initDB(String filePath) async {
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final dbPath = await getDatabasesPath();
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final path = join(dbPath, filePath);
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return await openDatabase(
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path,
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version: 2, // Estimate テーブル追加でバージョンアップ
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onCreate: _createDB,
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);
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}
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Future<void> _createDB(Database db, int version) async {
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const textType = 'TEXT NOT NULL';
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// customers テーブル作成（テストデータ挿入含む）
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await db.execute('''
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CREATE TABLE customers (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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customer_code TEXT $textType,
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name TEXT $textType,
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phone_number TEXT $textType,
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email TEXT NOT NULL,
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address TEXT $textType,
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sales_person_id INTEGER,
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tax_rate INTEGER DEFAULT 8,
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discount_rate INTEGER DEFAULT 0,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL
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)
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''');
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// employee テーブル（マスタ用）
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await db.execute('''
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CREATE TABLE employees (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL,
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position TEXT,
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phone_number TEXT,
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is_deleted INTEGER DEFAULT 0
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)
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''');
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// warehouse テーブル（マスタ用）
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await db.execute('''
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CREATE TABLE warehouses (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL,
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address TEXT,
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manager TEXT
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)
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''');
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// supplier テーブル（マスタ用）
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await db.execute('''
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CREATE TABLE suppliers (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL,
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tax_rate INTEGER DEFAULT 8
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)
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''');
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// product テーブル
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await db.execute('''
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CREATE TABLE products (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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product_code TEXT NOT NULL,
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name TEXT NOT NULL,
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price INTEGER NOT NULL,
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stock INTEGER DEFAULT 0,
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category TEXT,
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unit TEXT
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)
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''');
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// estimate テーブル（見積書用）
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await db.execute('''
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CREATE TABLE estimates (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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estimate_no TEXT NOT NULL UNIQUE,
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customer_id INTEGER,
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customer_name TEXT NOT NULL,
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date TEXT NOT NULL,
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total_amount REAL NOT NULL,
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tax_rate REAL DEFAULT 10,
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items_json TEXT NOT NULL,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL
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)
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''');
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// customer_snapshots テーブル（イベントソーシング用）
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await db.execute('''
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CREATE TABLE customer_snapshots (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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customer_id INTEGER NOT NULL,
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data_json TEXT NOT NULL,
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created_at TEXT NOT NULL
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)
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''');
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// employee_snapshots テーブル（イベントソーシング用）
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await db.execute('''
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CREATE TABLE employee_snapshots (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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employee_id INTEGER NOT NULL,
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data_json TEXT NOT NULL,
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created_at TEXT NOT NULL
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)
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''');
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// product_snapshots テーブル（イベントソーシング用）
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await db.execute('''
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CREATE TABLE product_snapshots (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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product_id INTEGER NOT NULL,
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data_json TEXT NOT NULL,
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created_at TEXT NOT NULL
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)
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''');
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// テストデータ初期化（各テーブルが空の場合のみ）
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await _insertTestData(db);
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}
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Future<void> _insertTestData(Database db) async {
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final existingCustomerCodes = (await db.query('customers', columns: ['customer_code']))
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.map((e) => e['customer_code'] as String?)
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.whereType<String>()
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.toList();
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if (existingCustomerCodes.isEmpty) {
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await db.insert('customers', {
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'customer_code': 'C00001',
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'name': 'テスト株式会社 Alpha',
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'phone_number': '03-1234-5678',
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'email': 'alpha@test.com',
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'address': '東京都港区_test 1-1-1',
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'sales_person_id': null,
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'tax_rate': 8,
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'discount_rate': 0,
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'created_at': DateTime.now().toIso8601String(),
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'updated_at': DateTime.now().toIso8601String(),
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});
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await db.insert('customers', {
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'customer_code': 'C00002',
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'name': 'テスト株式会社 Beta',
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'phone_number': '06-8765-4321',
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'email': 'beta@test.com',
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'address': '大阪府大阪市_test 2-2-2',
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'sales_person_id': null,
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'tax_rate': 9,
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'discount_rate': 5,
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'created_at': DateTime.now().toIso8601String(),
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'updated_at': DateTime.now().toIso8601String(),
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});
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await db.insert('customers', {
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'customer_code': 'C00003',
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'name': 'テスト株式会社 Gamma',
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'phone_number': '011-1111-2222',
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'email': 'gamma@test.com',
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'address': '北海道札幌市_test 3-3-3',
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'sales_person_id': null,
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'tax_rate': 10,
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'discount_rate': 10,
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'created_at': DateTime.now().toIso8601String(),
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'updated_at': DateTime.now().toIso8601String(),
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});
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// employees テーブル
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try {
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final existingEmployees = (await db.query('employees', columns: ['name']))
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.map((e) => e['name'] as String?)
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.whereType<String>()
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.toList();
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if (existingEmployees.isEmpty) {
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await db.insert('employees', {'name': '山田 太郎', 'position': '営業部長', 'phone_number': '090-1234-5678'});
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await db.insert('employees', {'name': '鈴木 花子', 'position': '経理部長', 'phone_number': '090-8765-4321'});
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await db.insert('employees', {'name': '田中 次郎', 'position': '技術部長', 'phone_number': '090-1111-2222'});
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}
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} catch (e) {}
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// warehouses テーブル
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try {
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final existingWarehouses = (await db.query('warehouses', columns: ['name']))
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.map((e) => e['name'] as String?)
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.whereType<String>()
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.toList();
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if (existingWarehouses.isEmpty) {
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await db.insert('warehouses', {'name': '中央倉庫', 'address': '千葉県市川市_物流センター 1-1', 'manager': '佐藤 健一'});
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await db.insert('warehouses', {'name': '東京支庫', 'address': '東京都品川区_倉庫棟 2-2', 'manager': '高橋 美咲'});
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}
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} catch (e) {}
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// suppliers テーブル
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try {
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final existingSuppliers = (await db.query('suppliers', columns: ['name']))
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.map((e) => e['name'] as String?)
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.whereType<String>()
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.toList();
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if (existingSuppliers.isEmpty) {
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await db.insert('suppliers', {'name': '仕入元 Alpha', 'tax_rate': 8});
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await db.insert('suppliers', {'name': '仕入元 Beta', 'tax_rate': 10});
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await db.insert('suppliers', {'name': '仕入元 Gamma', 'tax_rate': 10});
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}
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} catch (e) {}
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// products テーブル
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try {
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final existingProducts = (await db.query('products', columns: ['product_code']))
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.map((e) => e['product_code'] as String?)
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.whereType<String>()
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.toList();
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if (existingProducts.isEmpty) {
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await db.insert('products', {'product_code': 'PRD001', 'name': 'テスト商品 A', 'price': 3500, 'stock': 100, 'category': '食品', 'unit': '個'});
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await db.insert('products', {'product_code': 'PRD002', 'name': 'テスト商品 B', 'price': 5500, 'stock': 50, 'category': '家電', 'unit': '台'});
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await db.insert('products', {'product_code': 'PRD003', 'name': 'テスト商品 C', 'price': 2800, 'stock': 200, 'category': '文具', 'unit': '冊'});
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}
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} catch (e) {}
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}
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}
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// ========== Customer CRUD ======
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Future<int> insert(Customer customer) async {
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final db = await instance.database;
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return await db.insert('customers', customer.toMap());
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}
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Future<List<Customer>> getCustomers() async {
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final db = await instance.database;
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final List<Map<String, dynamic>> maps = await db.query('customers');
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return (maps as List)
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.map((json) => Customer.fromMap(json))
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.where((c) => c.isDeleted == 0)
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.toList();
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}
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Future<Customer?> getCustomer(int id) async {
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final db = await instance.database;
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final maps = await db.query('customers', where: 'id = ?', whereArgs: [id]);
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if (maps.isEmpty) return null;
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return Customer.fromMap(maps.first);
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}
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Future<int> update(Customer customer) async {
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final db = await instance.database;
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return await db.update('customers', customer.toMap(), where: 'id = ?', whereArgs: [customer.id]);
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}
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Future<int> delete(int id) async {
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final db = await instance.database;
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return await db.update('customers', {'is_deleted': 1}, where: 'id = ?', whereArgs: [id]);
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}
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// ========== Estimate CRUD ======
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Future<int> insertEstimate(String estimateNo, String customerName, DateTime date, List<EstimateItem> items) async {
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final db = await instance.database;
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// 見積番号の重複チェック
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final existing = await db.query('estimates', where: 'estimate_no = ?', whereArgs: [estimateNo]);
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if (existing.isNotEmpty) {
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throw ArgumentError('見積番号「$estimateNo」は既に存在します');
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}
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final itemsJson = jsonEncode(items.map((e) => e.toMap()).toList());
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final totalAmount = items.fold(0, (sum, item) => sum + item.total);
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return await db.insert('estimates', {
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'estimate_no': estimateNo,
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'customer_name': customerName,
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'date': date.toIso8601String(),
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'total_amount': totalAmount,
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'tax_rate': 10,
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'items_json': itemsJson,
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'created_at': DateTime.now().toIso8601String(),
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'updated_at': DateTime.now().toIso8601String(),
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});
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}
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Future<List<Estimate>> getEstimates() async {
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final db = await instance.database;
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final List<Map<String, dynamic>> maps = await db.query('estimates', orderBy: 'created_at DESC');
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return (maps as List)
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.map((json) => Estimate.fromMap(json))
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.toList();
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}
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Future<Estimate?> getEstimate(int id) async {
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final db = await instance.database;
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final maps = await db.query('estimates', where: 'id = ?', whereArgs: [id]);
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if (maps.isEmpty) return null;
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return Estimate.fromMap(maps.first);
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}
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Future<void> saveSnapshot(Estimate estimate) async {
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//_estimate_snapshots テーブルも必要に応じて追加可
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}
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// ========== Product CRUD ======
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Future<int> insert(Product product) async {
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final db = await instance.database;
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return await db.insert('products', product.toMap());
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}
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Future<List<Product>> getProducts() async {
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final db = await instance.database;
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final List<Map<String, dynamic>> maps = await db.query('products', orderBy: 'product_code ASC');
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return (maps as List)
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.map((json) => Product.fromMap(json))
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.where((p) => p.isDeleted == 0)
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.toList();
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}
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Future<Product?> getProduct(int id) async {
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final db = await instance.database;
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final maps = await db.query('products', where: 'id = ?', whereArgs: [id]);
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if (maps.isEmpty) return null;
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return Product.fromMap(maps.first);
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}
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Future<int> update(Product product) async {
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final db = await instance.database;
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return await db.update('products', product.toMap(), where: 'id = ?', whereArgs: [product.id]);
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}
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Future<int> delete(int id) async {
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final db = await instance.database;
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return await db.update('products', {'is_deleted': 1}, where: 'id = ?', whereArgs: [id]);
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}
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Future<void> close() async {
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final db = await instance.database;
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db.close();
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}
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} |