mirror of
https://github.com/asjqkkkk/flutter-todos.git
synced 2025-08-06 14:19:24 +08:00
109 lines
3.1 KiB
Dart
109 lines
3.1 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:path/path.dart';
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import 'package:sqflite/sqflite.dart';
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import 'package:todo_list/json/task_bean.dart';
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class DBProvider{
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DBProvider._();
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static final DBProvider db = DBProvider._();
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Database _database;
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Future<Database> get database async {
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if (_database != null) return _database;
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// if _database is null we instantiate it
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_database = await initDB();
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return _database;
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}
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initDB() async {
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var dataBasePath = await getDatabasesPath();
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String path = join(dataBasePath, "todo.db");
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return await openDatabase(path, version: 1, onOpen: (db) {},
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onCreate: (Database db, int version) async {
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await db.execute("CREATE TABLE TodoList ("
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"id INTEGER PRIMARY KEY AUTOINCREMENT,"
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"account TEXT,"
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"taskName TEXT,"
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"taskType TEXT,"
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"taskStatus INTEGER,"
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"taskDetailNum INTEGER,"
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"overallProgress TEXT,"
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"createDate TEXT,"
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"finishDate TEXT,"
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"detailList TEXT"
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")");
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});
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//注意，上面创建表的时候最后一行不能带逗号
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}
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//创建一项任务
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Future createTask(TaskBean task) async{
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final db = await database;
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task.id = await db.insert("TodoList", task.toMap());
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print("task:${task}");
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}
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//查询所有任务
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Future<List<Map<String, dynamic>>> getTasks() async{
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final db = await database;
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var list = db.query("TodoList");
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list.then((List<Map<String, dynamic>> data){
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print("list:${TaskBean.fromMapList(data)}");
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});
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return list;
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}
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// Future updateDiary(Diary newDiary) async {
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// final db = await database;
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// var res = await db.update("Diary", newDiary.toMap(),
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// where: "id = ?", whereArgs: [newDiary.id]);
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// return res;
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// }
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//
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// Future getDiary(int id) async {
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// final db = await database;
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// var res = await db.query("Diary", where: "id = ?", whereArgs: [id]);
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// return res.isNotEmpty ? Diary.fromMap(res.first) : null;
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// }
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//
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// Future<List<Diary>> getAllDiary(String account) async {
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// final db = await database;
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// var res = await db.query("Diary", where: "account = ?", whereArgs: [account]);
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// List<Diary> list =
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// res.isNotEmpty ? res.map((c) => Diary.fromMap(c)).toList() : [];
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// return list;
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// }
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//
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// Future<List<Diary>> searchDiary(String search, String account) async{
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// final db = await database;
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// var res = await db.rawQuery("SELECT * FROM Diary WHERE account = ? AND (diary_content LIKE ? OR location LIKE ? OR weather LIKE ? OR diary_title LIKE ?)",
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// [account, "%$search%","%$search%","%$search%","%$search%"]);
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// List<Diary> list = res.isNotEmpty ? res.map((c) => Diary.fromMap(c)).toList() : [];
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// return list;
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// }
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//
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// Future deleteDiary(int id) async {
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// final db = await database;
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// return db.delete("Diary", where: "id = ?", whereArgs: [id]);
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// }
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//
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// Future deleteAll() async {
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// final db = await database;
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// db.rawDelete("Delete * from Diary");
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// }
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}
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