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import 'package:sqflite/sqflite.dart';
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import 'package:path/path.dart';
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import 'dart:async';
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class MyDatabase {
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static Future<Database> initDatabase() async {
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final databasePath = await getDatabasesPath();
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final path = join(databasePath, 'travelguide.db');
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// 打开数据库连接
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//onCreate表示只有如果数据库版本发生变化，将会触发 onCreate 回调
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final database =
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await openDatabase(path, version: 1, onCreate: _createTables);
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await _createTables(database, 1);
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return Future.value(database);
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}
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static Future<void> _createTables(Database db, int version) async {
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await _createCollectionInfoTable(db, version);
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}
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static Future<void> _createCollectionInfoTable(Database db, int version) async {
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await db.execute('''
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CREATE TABLE IF NOT EXISTS CollectionInfo(
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CollectionID BIGINT PRIMARY KEY,
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MuseumName TEXT NOT NULL,
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CollectionName TEXT NOT NULL,
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CollectionDetail TEXT NOT NULL
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);
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''');
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print("CollectionInfoTable create success");
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}
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static Future<void> reBuildDatabase() async {
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final databasePath = await getDatabasesPath();
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final path = join(databasePath, 'tma.db');
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final database =
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await openDatabase(path, version: 1, onCreate: _createTables);
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await _createTables(database, 1);
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}
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}
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