forked from lxm_tools/flutter-picgo
98 lines
3.2 KiB
Dart
98 lines
3.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_picgo/resources/pb_type_keys.dart';
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import 'package:flutter_picgo/resources/table_name_keys.dart';
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import 'package:sqflite/sqflite.dart';
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import 'package:path/path.dart';
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class DbProvider {
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static Database db;
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/// 获取数据库中所有的表
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Future<List> getTables() async {
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if (db == null) {
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return Future.value([]);
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}
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List tables = await db
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.rawQuery('SELECT name FROM sqlite_master WHERE type = "table"');
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List<String> targetList = [];
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tables.forEach((item) {
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targetList.add(item['name']);
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});
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return targetList;
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}
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/// 检查数据库中, 表是否完整, 在部份android中, 会出现表丢失的情况
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Future checkTableIsRight() async {
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List<String> expectTables = [TABLE_NAME_UPLOADED, TABLE_NAME_PBSETTING];
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List<String> tables = await getTables();
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for (int i = 0; i < expectTables.length; i++) {
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if (!tables.contains(expectTables[i])) {
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return false;
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}
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}
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return true;
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}
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/// 初始化数据库
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Future init({bool isCreate = false}) async {
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String dbPath = await getDatabasesPath();
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String path = join(dbPath, 'picgo.db');
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try {
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db = await openDatabase(
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path,
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version: 3,
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onCreate: (db, version) async {
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// 创建pb_setting表
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_initPb(db);
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// 创建uploaded表
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await db.execute('''
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CREATE TABLE $TABLE_NAME_UPLOADED (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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path varchar(255) NOT NULL,
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type varchar(20) NOT NULL,
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info varchar(255) NOT NULL
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)''');
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},
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onUpgrade: (db, oldVersion, newVersion) {
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_initPb(db);
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_upgradeDbV1ToV2(db);
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},
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);
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} catch (e) {
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debugPrint('DataBase init Error >>>>>> $e');
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}
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}
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/// 初始化图床设置表
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_initPb(Database db) async {
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await db.execute('DROP TABLE IF EXISTS $TABLE_NAME_PBSETTING');
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// 创建pb_setting表
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await db.execute('''
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CREATE TABLE $TABLE_NAME_PBSETTING (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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type varchar(20) NOT NULL UNIQUE,
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path varchar(20) NOT NULL UNIQUE,
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name varchar(50) DEFAULT NULL,
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config varchar(255) DEFAULT NULL,
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visible INTEGER DEFAULT 1
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)''');
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await db.transaction((txn) async {
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// github图床
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await txn.rawInsert(
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'INSERT INTO $TABLE_NAME_PBSETTING(type, path, name, config, visible) VALUES("${PBTypeKeys.github}", "/setting/pb/github", "Github图床", NULL, 1)');
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// SM.MS图床
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await txn.rawInsert(
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'INSERT INTO $TABLE_NAME_PBSETTING(type, path, name, config, visible) VALUES("${PBTypeKeys.smms}", "/setting/pb/smms", "SM.MS图床", NULL, 1)');
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// Gitee图床
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await txn.rawInsert(
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'INSERT INTO $TABLE_NAME_PBSETTING(type, path, name, config, visible) VALUES("${PBTypeKeys.gitee}", "/setting/pb/gitee", "Gitee图床", NULL, 1)');
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});
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}
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/// db版本升级
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_upgradeDbV1ToV2(Database db) async {
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await db.execute(
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'ALTER TABLE $TABLE_NAME_UPLOADED ADD COLUMN info varchar(255)');
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}
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}
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