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philipmims
2022-11-04 10:46:07 -04:00
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88
lib/bups/dbhelper_example.dart Normal file
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import 'dart:io';
import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';
import 'package:path_provider/path_provider.dart';
class DatabaseHelper {
static final _databaseName = "MyDatabase.db";
static final _databaseVersion = 1;
static final table = 'my_table';
static final columnId = '_id';
static final columnName = 'name';
static final columnAge = 'age';
// make this a singleton class
DatabaseHelper._privateConstructor();
static final DatabaseHelper instance = DatabaseHelper._privateConstructor();
// only have a single app-wide reference to the database
static Database _database;
Future<Database> get database async {
if (_database != null) return _database;
// lazily instantiate the db the first time it is accessed
_database = await _initDatabase();
return _database;
}
// this opens the database (and creates it if it doesn't exist)
_initDatabase() async {
Directory documentsDirectory = await getApplicationDocumentsDirectory();
String path = join(documentsDirectory.path, _databaseName);
return await openDatabase(path,
version: _databaseVersion, onCreate: _onCreate);
}
// SQL code to create the database table
Future _onCreate(Database db, int version) async {
await db.execute('''
CREATE TABLE $table (
$columnId INTEGER PRIMARY KEY,
$columnName TEXT NOT NULL,
$columnAge INTEGER NOT NULL
)
''');
}
// Helper methods
// Inserts a row in the database where each key in the Map is a column name
// and the value is the column value. The return value is the id of the
// inserted row.
Future<int> insert(Map<String, dynamic> row) async {
Database db = await instance.database;
return await db.insert(table, row);
}
// All of the rows are returned as a list of maps, where each map is
// a key-value list of columns.
Future<List<Map<String, dynamic>>> queryAllRows() async {
Database db = await instance.database;
return await db.query(table);
}
// All of the methods (insert, query, update, delete) can also be done using
// raw SQL commands. This method uses a raw query to give the row count.
Future<int> queryRowCount() async {
Database db = await instance.database;
return Sqflite.firstIntValue(
await db.rawQuery('SELECT COUNT(*) FROM $table'));
}
// We are assuming here that the id column in the map is set. The other
// column values will be used to update the row.
Future<int> update(Map<String, dynamic> row) async {
Database db = await instance.database;
int id = row[columnId];
return await db.update(table, row, where: '$columnId = ?', whereArgs: [id]);
}
// Deletes the row specified by the id. The number of affected rows is
// returned. This should be 1 as long as the row exists.
Future<int> delete(int id) async {
Database db = await instance.database;
return await db.delete(table, where: '$columnId = ?', whereArgs: [id]);
}
}

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lib/bups/dummy.dart Normal file
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void main() {
runApp(const FormApp());
}

83
lib/bups/firebase_options.dart Normal file
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// File generated by FlutterFire CLI.
// ignore_for_file: lines_longer_than_80_chars, avoid_classes_with_only_static_members
import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
import 'package:flutter/foundation.dart'
show defaultTargetPlatform, kIsWeb, TargetPlatform;
/// Default [FirebaseOptions] for use with your Firebase apps.
///
/// Example:
/// ```dart
/// import 'firebase_options.dart';
/// // ...
/// await Firebase.initializeApp(
/// options: DefaultFirebaseOptions.currentPlatform,
/// );
/// ```
class DefaultFirebaseOptions {
static FirebaseOptions get currentPlatform {
if (kIsWeb) {
return web;
}
switch (defaultTargetPlatform) {
case TargetPlatform.android:
return android;
case TargetPlatform.iOS:
return ios;
case TargetPlatform.macOS:
return macos;
case TargetPlatform.windows:
throw UnsupportedError(
'DefaultFirebaseOptions have not been configured for windows - '
'you can reconfigure this by running the FlutterFire CLI again.',
);
case TargetPlatform.linux:
throw UnsupportedError(
'DefaultFirebaseOptions have not been configured for linux - '
'you can reconfigure this by running the FlutterFire CLI again.',
);
default:
throw UnsupportedError(
'DefaultFirebaseOptions are not supported for this platform.',
);
}
}
static const FirebaseOptions web = FirebaseOptions(
apiKey: 'AIzaSyC3r_l3tj1x9Za0XXio89OIFWIY3Um40c8',
appId: '1:497486937927:web:66bcf53b6b41b7d84d5662',
messagingSenderId: '497486937927',
projectId: 'dash-6e8c2',
authDomain: 'dash-6e8c2.firebaseapp.com',
storageBucket: 'dash-6e8c2.appspot.com',
measurementId: 'G-XZVH49N86G',
);
static const FirebaseOptions android = FirebaseOptions(
apiKey: 'AIzaSyB5CA0f2J9qB4zt5YLaXCX-lMP8dKkFpmM',
appId: '1:497486937927:android:133640261945f9744d5662',
messagingSenderId: '497486937927',
projectId: 'dash-6e8c2',
storageBucket: 'dash-6e8c2.appspot.com',
);
static const FirebaseOptions ios = FirebaseOptions(
apiKey: 'AIzaSyA6mRZkuPnAFsvfYeClMRpeuB174x5-Aqk',
appId: '1:497486937927:ios:0c6b9a9a0c06b4484d5662',
messagingSenderId: '497486937927',
projectId: 'dash-6e8c2',
storageBucket: 'dash-6e8c2.appspot.com',
iosClientId: '497486937927-80niucdhlshtgeragten316bdnpqgo8u.apps.googleusercontent.com',
iosBundleId: 'com.example.dash',
);
static const FirebaseOptions macos = FirebaseOptions(
apiKey: 'AIzaSyA6mRZkuPnAFsvfYeClMRpeuB174x5-Aqk',
appId: '1:497486937927:ios:0c6b9a9a0c06b4484d5662',
messagingSenderId: '497486937927',
projectId: 'dash-6e8c2',
storageBucket: 'dash-6e8c2.appspot.com',
iosClientId: '497486937927-80niucdhlshtgeragten316bdnpqgo8u.apps.googleusercontent.com',
iosBundleId: 'com.example.dash',
);
}

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lib/bups/main - Copy.dart Normal file
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import 'dart:collection';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'dart:async';
import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';
// import 'package:flutter/src/widgets/form.dart';
void main() async {
runApp(
ChangeNotifierProvider(
create: (context) => GarageModel(),
child: MaterialApp(
title: 'Dashboard',
initialRoute: '/',
routes: {
'/' : (context) => const MyApp(),
'/newcar' : (context) => const NewCarScreen(),
'/about': (context) => const AboutScreen(),
},
// home: MyApp()
),
),
);
WidgetsFlutterBinding.ensureInitialized();
final database = openDatabase(
join(await getDatabasesPath(), 'dash_db_sqlite.db'),
onCreate: (db, version) {
return db.execute(
'''CREATE TABLE cars(
id INT INCREMENT,
nickname STRING,
vin STRING PRIMARY KEY,
mileage INT,
owner STRING)''',
);
},
version: 1,
);
/*
Future<void> insertCar(Car car) async {
final db = await database;
await db.insert(
'cars',
car.toMap(),
conflictAlgorithm: ConflictAlgorithm.abort,
);
}
Future<List<Car>> getCars() async {
final db = await database;
final List<Map<String, dynamic>> maps = await db.query('cars');
return List.generate(maps.length, (i) {
return Car(
nickname: maps[i]['nickname'],
vin: maps[i]['vin'],
plate: maps[i]['plate'],
mileage: maps[i]['mileage'],
owner: maps[i]['owner'],
);
});
}
Future<void> updateCar(Car car) async {
final db = await database;
await db.update(
'cars',
car.toMap(),
where: 'vin=?',
whereArgs: [car.vin],
);
}
Future<void> deleteCar(Car car) async {
final db = await database;
await db.delete(
'cars',
where: 'vin=?',
whereArgs: ['vin'],
);
}
*/
}
class GarageModel extends ChangeNotifier {
/// internal state of garage
final List<Car> _cars = [];
UnmodifiableListView<Car> get cars => UnmodifiableListView(_cars);
void add(Car car) {
_cars.add(car);
notifyListeners();
}
void removeAll() {
_cars.clear();
notifyListeners();
}
}
/* class Car {
final String vin;
final String plate;
final String nickname;
final int mileage;
final String owner;
const Car({
required this.vin,
required this.plate,
required this.nickname,
required this.owner,
required this.mileage,
});
// build map, keys must match db col names
Map<String, dynamic> toMap() {
return {
'vin': vin,
'plate': plate,
'nickname': nickname,
'owner': owner,
'mileage': mileage,
};
}
@override
String toString() {
return 'Car{nickname: $nickname, vin: $vin, plate: $plate, owner: $owner}';
}
} */
class Car {
Car({this.vin, this.plate, this.nickname, this.owner, this.mileage});
String? vin;
String? plate;
String? nickname;
String? owner;
int? mileage;
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
final _formKey = GlobalKey<FormState>();
/* _list() => Expanded(
child: Card(
margin: EdgeInsets.fromLTRB(20,30,20,0),
child: ListView.builder(
padding: EdgeInsets.all(8),
itemBuilder: (context, index){
return Column(
children: <Widget>[
ListTile(
leading: Icon(Icons.directions_car),
title: Text(_cares[index].nickname ?? ''),
subtitle: Text(_cares[index].vin ?? '')m
),
Divider(height: 5.0),
]
);
},
itemCount: _cares.length,
)
)
); */
/* Widget carInfo = Container(
padding: const EdgeInsets.all(16),
child: _list(),
); */
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.indigo,
title: const Text('Dashboard'),
// leading: IconButton(
// icon: const Icon(Icons.menu),
// ),
),
drawer: Drawer(
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
const SizedBox(
height: 64.0,
child: DrawerHeader(
decoration: BoxDecoration(
color: Colors.blue,
),
child: Text(
'Header',
style: TextStyle(
color: Colors.white,
fontSize: 18,
),
),
),
),
ListTile(
leading: Icon(Icons.settings),
title: Text('Settings'),
onTap: () {
print('settings');
},
// do something
),
ListTile(
leading: Icon(Icons.sync),
title: Text('Setup Database'),
onTap: () {
print('dbsetup');
},
),
ListTile(
leading: Icon(Icons.info_outline),
title: Text('About'),
onTap: () {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => const AboutScreen()));
},
),
],
),
),
body: Container(
color: Colors.lightBlue,
child: Column(
children: [
Expanded(
child: Padding(
padding: const EdgeInsets.all(32),
child: _CarList(),
),
),
const Divider(height: 3, color: Colors.grey),
]
)
),
/* ListView.builder(itemBuilder: (_, index) {
return Container(
padding: const EdgeInsets.all(8),
child: carInfo,
);
}), */
floatingActionButton: FloatingActionButton(
child: const Icon(Icons.add),
onPressed: () { //replace with route
Navigator.pushNamed(context, '/newcar');
/* Navigator.of(context).push(
MaterialPageRoute(builder: (context) => const NewCarScreen())); */
},
),
);
}
// _list() => Container();
void updateCars(Care care) {
setState(() {
_cares.add(care);
});
} //will this work???????????????????????????
}
class AboutScreen extends StatelessWidget {
// change to AboutDialog
const AboutScreen(
{super.key}); //https://api.flutter.dev/flutter/material/AboutDialog-class.html
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('About Page'),
backgroundColor: Colors.indigo,
),
body: const Center(
child: Text('About Page Text, Lorum Ipsum and whatnot.'),
));
}
}
class NewCarScreen extends StatefulWidget {
const NewCarScreen({super.key});
@override
State<NewCarScreen> createState() => _NewCarScreenState();
}
class _NewCarScreenState extends State<NewCarScreen> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
Care _care = Care();
List<Care> _cares = [];
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Add New Car'),
backgroundColor: Colors.indigo,
),
body: Container(
padding: EdgeInsets.all(32),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
TextFormField(
decoration: const InputDecoration(
labelText: 'Nickname',
),
onSaved: (val) => setState(() => _care.nickname = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a nickname';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => _care.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => _care.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 16.0),
child: ElevatedButton(
onPressed: () {
if (_formKey.currentState!.validate()) {
_onSubmit();
}
},
child: Row(
children: const <Widget>[
Icon(Icons.add),
Text('Add Car'),
],
),
),
),
],
),
),
),
);
}
_onSubmit() {
var form = _formKey.currentState!;
// _formKey.currentState!.save();
form.save(); //callback in form text fields
print(_care.nickname);
setState(() { //ensure you re-pass values,
_cares.add(Care(vin:_care.vin,nickname:_care.nickname,owner:_care.owner, plate:_care.plate, mileage:_care.mileage));
});
setState(() {
widget._list.add(_care));
});
// widget.onSubmit(_care);
form.reset();
}
Future<void> _returnHome(BuildContext context) async {
final newCar = await Navigator.push(
context,
MaterialPageRoute(builder: (context) => const MyApp()),
);
if (!mounted) return;
}
}
/* class SelectCarIconScreen extends StatelessWidget {
const SelectCarIconScreen({super.key});
@override
Widget build(BuildContext context) {
return
}
} */

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// Copyright 2018 The Flutter team. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:dash/utils/dbhelper_sqflite.dart';
import 'package:flutter/material.dart';
// import 'package:flutter/provider.dart';
import 'dart:async';
import 'package:flutter/widgets.dart';
import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';
void main() async {
runApp(MaterialApp(home: MyApp()));
final dbHelper = DbHelperSqlite.instance; //medium method
var newCar = const Car(
vin: '123abc',
plate: 'n1ce',
nickname: 'My Car',
owner: 'Ben',
mileage: 7,
);
}
class Car {
final String vin;
final String plate;
final String nickname;
final int mileage;
final String owner;
const Car({
required this.vin,
required this.plate,
required this.nickname,
required this.owner,
required this.mileage,
});
// build map, keys must match db col names
Map<String, dynamic> toMap() {
return {
'vin': vin,
'plate': plate,
'nickname': nickname,
'owner': owner,
'mileage': mileage,
};
}
@override
String toString() {
return 'Car{nickname: $nickname, vin: $vin, plate: $plate, owner: $owner}';
}
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
Widget carInfo = Container(
padding: const EdgeInsets.all(16),
child: Row(children: [
Image.asset(
'images/mazda.png',
),
Icon(
Icons.directions_car_filled,
color: Colors.red[500],
),
const Text('Nickname'),
]),
);
return MaterialApp(
title: 'Dashboard App',
// home: const ManageScreen(),
home: Scaffold(
appBar: AppBar(
backgroundColor: Colors.indigo,
title: const Text('Dashboard'),
// leading: IconButton(
// icon: const Icon(Icons.menu),
// ),
),
drawer: Drawer(
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
const SizedBox(
height: 64.0,
child: DrawerHeader(
decoration: BoxDecoration(
color: Colors.blue,
),
child: Text(
'Header',
style: TextStyle(
color: Colors.white,
fontSize: 18,
),
),
),
),
ListTile(
leading: Icon(Icons.settings),
title: Text('Settings'),
onTap: () {
print('settings');
},
// do something
),
ListTile(
leading: Icon(Icons.sync),
title: Text('Setup Database'),
onTap: () {
print('dbsetup');
},
),
ListTile(
leading: Icon(Icons.info_outline),
title: Text('About'),
onTap: () {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => const AboutScreen()));
},
),
],
),
),
body: ListView.builder(itemBuilder: (_, index) {
return Container(
padding: const EdgeInsets.all(8),
child: carInfo,
);
}),
floatingActionButton: FloatingActionButton(
onPressed: () {
Navigator.of(context).push(
MaterialPageRoute(builder: (context) => const NewCarScreen()));
},
),
),
);
}
}
class AboutScreen extends StatelessWidget { // change to AboutDialog
const AboutScreen({super.key}); //https://api.flutter.dev/flutter/material/AboutDialog-class.html
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('About Page'),
backgroundColor: Colors.indigo,
),
body: const Center(
child: Text('About Page Text, Lorum Ipsum and whatnot.'),
));
}
}
class NewCarScreen extends StatefulWidget {
const NewCarScreen({super.key});
@override
State<NewCarScreen> createState() => _NewCarScreenState();
}
class _NewCarScreenState extends State<NewCarScreen> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Add New Car'),
backgroundColor: Colors.indigo,
),
body: Container(
padding: EdgeInsets.all(32),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
// Text('Add new car form here'),
TextFormField(
decoration: const InputDecoration(
hintText: 'Nickname for this car',
),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a nickname';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
hintText: 'Unique VIN',
),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
hintText: 'Mileage',
),
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 16.0),
child: ElevatedButton(
onPressed: () {
if (_formKey.currentState!.validate()) {
// process
}
},
child: Row(
children: const <Widget>[
Icon(Icons.add),
Text('Add Car'),
],
),
),
),
],
),
),
),
);
}
}
class SelectCarIconScreen extends StatelessWidget {
const SelectCarIconScreen({super.key});
@override
Widget build(BuildContext context) {
return
}
}

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import 'dart:collection';
import 'package:dash/utils/dbhelper_sqflite.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
// import 'package:path/path.dart';
// import 'package:sqflite/sqflite.dart';
import 'package:dash/models/car.dart';
// import 'package:flutter/src/widgets/form.dart';
void main() async {
runApp(
ChangeNotifierProvider(
create: (context) => GarageModel(),
child: const MaterialApp(
title: 'Dashboard',
home: MyApp(),
/* initialRoute: '/',
routes: {
'/': (context) => const MyApp(),
'/about': (context) => const AboutScreen(),
'/newcar': (context) => const NewCarScreen(),
'/detail': (context) => const CarDetailScreen(),
'/edit': (context) => EditCarScreen(),
}, */
),
),
);
// WidgetsFlutterBinding.ensureInitialized(); // is this necessary?
}
class GarageModel extends ChangeNotifier {
/// internal state of garage
late List<Car> _cars = [];
final DbHelperSqlite _dbHelper = DbHelperSqlite.instance;
UnmodifiableListView<Car> get cars => UnmodifiableListView(_cars);
void add(Car car) {
_cars.add(car);
_dbHelper.insertCar(car);
// getCars(); // prob nec to update `id`
notifyListeners();
}
void update(Car car, int carIndex) {
_cars[carIndex] = car; // replace list car with new values
_dbHelper.updateCar(car);
print('car.id is ${car.id}');
getCars();
notifyListeners();
}
void delete(Car car) {
_cars.removeWhere((_car) => _car.id == car.id);
_dbHelper.deleteCar(car);
print('${car} deleted');
notifyListeners();
}
void clearCarList() {
// clear _cars; doesn't affect database
// useful for clearing cars that didn't make it into the db
_cars.clear();
notifyListeners();
}
void deleteAllCars() {
// delete rows from CarTable
_cars.clear();
_dbHelper.deleteAll();
notifyListeners();
}
Future<void> getCars() async {
// _cars.clear();
print('getcars');
_cars = await _dbHelper.fetchCars();
print(_cars);
// notifyListeners(); //for some reason this inits db infinitely
}
}
class Garage extends StatefulWidget {
const Garage({super.key});
@override
State<Garage> createState() => _Garage();
}
class _Garage extends State<Garage> {
late Future _cars;
@override
void initState() {
_cars = Provider.of<GarageModel>(context, listen: false).getCars();
super.initState();
}
@override
Widget build(BuildContext context) {
return FutureBuilder(
future: _cars,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(
child: CircularProgressIndicator(),
);
} else {
if (snapshot.error != null) {
return const Center(
child: Text('An error occurred'),
);
} else {
return Expanded(
child: Consumer<GarageModel>(builder: (context, garage, child) {
return ListView.separated(
// padding: const EdgeInsets.all(8),
itemCount: garage._cars.length,
itemBuilder: (context, index) => ListTile(
leading: const Icon(Icons.directions_car),
title: Text(garage.cars[index].nickname ?? "nick_ph"),
subtitle: Text(garage.cars[index].vin ?? "vin_ph"),
// onTap: () => Navigator.pushNamed(context, '/detail'),
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => EditCarScreen(
car: garage._cars[index], carIndex: index)),
);
}),
separatorBuilder: (BuildContext context, int index) =>
const Divider(),
);
}));
}
}
},
);
}
}
class _CarList extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Consumer<GarageModel>(
builder: (context, garage, child) {
return ListView.separated(
// padding: const EdgeInsets.all(8),
itemCount: garage._cars.length,
itemBuilder: (context, index) => ListTile(
leading: const Icon(Icons.directions_car),
title: Text(garage.cars[index].nickname ?? "nick_ph"),
subtitle: Text(garage.cars[index].vin ?? "vin_ph"),
// onTap: () => Navigator.pushNamed(context, '/detail'),
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => EditCarScreen(
car: garage._cars[index], carIndex: index)),
);
}),
separatorBuilder: (BuildContext context, int index) =>
const Divider(),
);
},
);
}
}
class MyDrawer extends StatelessWidget {
const MyDrawer({super.key});
@override
Widget build(BuildContext context) {
return Drawer(
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
const SizedBox(
height: 80.0,
child: DrawerHeader(
decoration: BoxDecoration(
color: Color.fromARGB(255, 185, 47, 5),
),
child: Text(
'Options',
style: TextStyle(
color: Colors.white,
fontSize: 18,
),
),
),
),
ListTile(
leading: const Icon(Icons.settings),
title: const Text('Settings'),
onTap: () {
print('settings');
},
// do something
),
ListTile(
leading: const Icon(Icons.sync),
title: const Text('Setup Database'),
onTap: () {
print('dbsetup');
},
),
ListTile(
leading: const Icon(Icons.info_outline),
title: const Text('About'),
onTap: () {
Navigator.of(context).push(
MaterialPageRoute(builder: (context) => const AboutScreen()));
},
),
],
),
);
}
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
// context.watch<GarageModel>().getCars(); // testing
var garage = context.watch<GarageModel>(); // testing
return Scaffold(
appBar: AppBar(
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
title: const Text('Dashboard'),
),
drawer: const MyDrawer(),
body: Container(
padding: const EdgeInsets.all(32),
child: Column(
children: [
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => garage.clearCarList()),
// onPressed: (() => VoidCallback),
onLongPress: () {
garage.deleteAllCars();
// VoidCallback;
},
child: Row(
children: const <Widget>[
Icon(Icons.delete),
Text('Remove All Cars'),
],
),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => garage.getCars()),
// onPressed: (() => VoidCallback),
child: Row(
children: const <Widget>[
Icon(Icons.sync),
Text('Refresh garage'),
],
),
),
),
const Garage(),
/* FutureBuilder(
future:
Provider.of<GarageModel>(context, listen: false).getCars(),
builder: (context, dataSnapshot) {
if (dataSnapshot.connectionState == ConnectionState.waiting) {
return const Center(
child: CircularProgressIndicator(),
);
} else {
if (dataSnapshot.error != null) {
return const Center(
child: Text('An error occurred'),
);
} else {
return Expanded(
child: _CarList(),
);
}
}
},
), */
],
),
),
floatingActionButton: FloatingActionButton(
child: const Icon(Icons.add),
onPressed: () {
Navigator.push(context,
MaterialPageRoute(builder: (context) => const NewCarScreen()));
},
),
);
}
}
class AboutScreen extends StatelessWidget {
// change to AboutDialog
const AboutScreen(
{super.key}); //https://api.flutter.dev/flutter/material/AboutDialog-class.html
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('About Page'),
backgroundColor: Colors.indigo,
),
body: const Center(
child: Text('About Page Text, Lorum Ipsum and whatnot.'),
));
}
}
class NewCarScreen extends StatefulWidget {
const NewCarScreen({super.key});
@override
State<NewCarScreen> createState() => _NewCarScreenState();
}
class _NewCarScreenState extends State<NewCarScreen> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
Car _car = Car(); //initialization is required
/* DbHelperSqlite _dbHelper = DbHelperSqlite.instance;
@override
void initState() {
super.initState();
setState(() {
_dbHelper = DbHelperSqlite.instance;
});
} */
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Add New Car'),
backgroundColor: Colors.indigo,
),
body: Container(
padding: const EdgeInsets.all(32),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
TextFormField(
decoration: const InputDecoration(
labelText: 'Nickname',
),
onSaved: (val) => setState(() => _car.nickname = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a nickname';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => _car.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => _car.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 16.0),
child: ElevatedButton(
// onPressed: () => _onSubmit(context),
onPressed: () {
final _form = _formKey.currentState!;
if (_form.validate()) {
//validate form
_form
.save(); //save values (reqd before putting them anywhere)
setState(() {
//modify state of car (necessary?)
_car = Car(
vin: _car.vin,
nickname: _car.nickname,
plate: _car.plate,
mileage: _car.mileage);
});
var garage =
context.read<GarageModel>(); //implement Provider
garage.add(_car);
_form.reset();
Navigator.pushNamed(context, '/');
}
},
child: Row(
children: const <Widget>[
Icon(Icons.add),
Text('Add Car'),
],
),
),
),
],
),
),
),
);
}
_onSubmit(context) async {
final _form = _formKey.currentState!;
if (_form.validate()) {
//validate form
_form.save(); //save values (reqd before putting them anywhere)
setState(() {
//modify state of car (necessary?)
_car = Car(
vin: _car.vin,
nickname: _car.nickname,
plate: _car.plate,
mileage: _car.mileage);
});
var garage = context.read<GarageModel>(); //implement Provider
garage.add(_car);
_form.reset();
Navigator.pushNamed(context, '/');
}
}
}
class CarDetailScreen extends StatelessWidget {
const CarDetailScreen({super.key});
//garage? load car using Provider?
// then feed to update screen
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
title: const Text('Vehicle Name'),
),
drawer: const MyDrawer(),
body: Container(
padding: const EdgeInsets.all(32),
child: const Text('Details here'),
),
floatingActionButton: FloatingActionButton(
child: const Icon(Icons.edit),
onPressed: () {
Navigator.pushNamed(context, '/edit');
},
),
);
}
}
class EditCarScreen extends StatefulWidget {
EditCarScreen({super.key, required this.car, required this.carIndex});
Car car;
int carIndex;
@override
State<EditCarScreen> createState() => _EditCarScreenState();
}
class _EditCarScreenState extends State<EditCarScreen> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
late Car car = widget.car; //initialization is required
late int carIndex = widget.carIndex;
@override
Widget build(BuildContext context) {
var garage = context.read<GarageModel>();
return Scaffold(
appBar: AppBar(
title: Text("Edit ${car.nickname}"),
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
),
body: Container(
padding: const EdgeInsets.all(16),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
TextFormField(
initialValue: car.nickname,
decoration: const InputDecoration(
labelText: 'Nickname',
),
onSaved: (val) => setState(() => car.nickname = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a nickname';
}
return null;
},
),
TextFormField(
initialValue: car.vin,
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => car.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
initialValue: car.mileage.toString(),
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => car.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: () {
final updateForm = _formKey.currentState!;
if (updateForm.validate()) {
//validate form
updateForm
.save(); //save values (reqd before putting them anywhere)
setState(() {
//modify state of car (necessary?)
car = Car(
vin: car.vin,
nickname: car.nickname,
plate: car.plate,
mileage: car.mileage);
}); //implement Provider
garage.update(car, carIndex);
updateForm.reset();
Navigator.pushNamed(context, '/');
}
},
child: Row(
children: const <Widget>[
//expand these children, too tight
Icon(Icons.save),
Text('Save Changes'),
],
),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
onLongPress: () {
garage.delete(car);
Navigator.pushNamed(context, '/');
},
child: Row(children: const <Widget>[
Icon(Icons.delete),
Text('Delete'),
]),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
child: Row(children: const <Widget>[
Icon(Icons.sync_alt),
Text('enable/disable'),
]),
),
),
],
),
),
),
);
}
}

790
lib/main.dart Normal file
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@@ -0,0 +1,790 @@
import 'dart:collection';
import 'package:dash/utils/dbhelper_sqflite.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
// import 'package:path/path.dart';
// import 'package:sqflite/sqflite.dart';
import 'package:dash/models/car.dart';
import 'package:dash/models/txn.dart';
// import 'package:flutter/src/widgets/form.dart';
void main() async {
runApp(
ChangeNotifierProvider(
create: (context) => GarageModel(),
child: const MaterialApp(
title: 'Dashboard',
home: MyApp(),
/* initialRoute: '/',
routes: {
'/': (context) => const MyApp(),
'/about': (context) => const AboutScreen(),
'/newcar': (context) => const NewCarScreen(),
'/detail': (context) => const CarDetailScreen(),
'/edit': (context) => EditCarScreen(),
}, */
),
),
);
// WidgetsFlutterBinding.ensureInitialized(); // is this necessary?
}
class GarageModel extends ChangeNotifier {
/// internal state of garage
late List<Car> _cars = [];
final DbHelperSqlite _dbHelper = DbHelperSqlite.instance;
UnmodifiableListView<Car> get cars => UnmodifiableListView(_cars);
void add(Car car) {
// _cars.add(car);
_dbHelper.insertCar(car);
getCars(); // prob nec to update `id`
notifyListeners();
}
void update(Car car, int carIndex) {
_cars[carIndex] = car; // replace list car with new values
_dbHelper.updateCar(car);
print('updated car ${car.toMap()}');
getCars();
// print(_cars);
notifyListeners();
}
void delete(Car car) {
// ignore: no_leading_underscores_for_local_identifiers
_cars.removeWhere((_car) => _car.id == car.id);
_dbHelper.deleteCar(car);
print('$car with id ${car.id} deleted');
getCars();
notifyListeners();
}
void clearCarList() {
// clear _cars; doesn't affect database
// useful for clearing cars that didn't make it into the db
_cars.clear();
notifyListeners();
}
void deleteAllCars() {
// delete rows from CarTable
_cars.clear();
_dbHelper.deleteAll();
notifyListeners();
}
Future<void> getCars() async {
// _cars.clear();
print('getcars');
_cars = await _dbHelper.fetchCars();
print(_cars);
// notifyListeners(); //for some reason this inits db infinitely
}
}
class Garage extends StatefulWidget {
const Garage({super.key});
@override
State<Garage> createState() => _Garage();
}
class _Garage extends State<Garage> {
late Future _cars;
@override
void initState() {
_cars = Provider.of<GarageModel>(context, listen: false).getCars();
// _cars = Provider.of<GarageModel>(context).getCars();
super.initState();
}
@override
Widget build(BuildContext context) {
return FutureBuilder(
future: _cars,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(
child: CircularProgressIndicator(),
);
} else {
if (snapshot.error != null) {
return const Center(
child: Text('An error occurred'),
);
} else {
return Expanded(
child: Consumer<GarageModel>(builder: (context, garage, child) {
return ListView.separated(
// padding: const EdgeInsets.all(8),
itemCount: garage._cars.length,
itemBuilder: (context, index) => ListTile(
leading: const Icon(Icons.directions_car),
title: Text(garage.cars[index].nickname ?? "nick_ph"),
subtitle: Text(garage.cars[index].vin ?? "vin_ph"),
/* trailing: IconButton(
onPressed: Navigator.push(
context,
MaterialPageRoute(
builder: (context) => EditCarScreen(
car: garage._cars[index], carIndex: index)),
),
icon: Icons.edit),
),
onTap: () => Navigator.pushNamed(context, '/detail'), */
onTap: () {
Navigator.of(context).push(
// context,
MaterialPageRoute(
builder: (context) => CarDetailScreen(
car: garage._cars[index], carIndex: index),
),
);
},
),
separatorBuilder: (BuildContext context, int index) =>
const Divider(),
);
}));
}
}
},
);
}
}
class MyDrawer extends StatelessWidget {
const MyDrawer({super.key});
@override
Widget build(BuildContext context) {
return Drawer(
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
const SizedBox(
height: 80.0,
child: DrawerHeader(
decoration: BoxDecoration(
color: Color.fromARGB(255, 185, 47, 5),
),
child: Text(
'Options',
style: TextStyle(
color: Colors.white,
fontSize: 18,
),
),
),
),
ListTile(
leading: const Icon(Icons.settings),
title: const Text('Settings'),
onTap: () {
print('settings');
},
// do something
),
ListTile(
leading: const Icon(Icons.sync),
title: const Text('Setup Database'),
onTap: () {
print('dbsetup');
},
),
ListTile(
leading: const Icon(Icons.info_outline),
title: const Text('About'),
onTap: () {
Navigator.of(context).push(
MaterialPageRoute(builder: (context) => const AboutScreen()));
},
),
],
),
);
}
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
var garage = context.watch<GarageModel>(); // testing
return Scaffold(
appBar: AppBar(
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
title: const Text('Dashboard'),
),
drawer: const MyDrawer(),
body: Container(
padding: const EdgeInsets.all(32),
child: Column(
children: [
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => garage.clearCarList()),
// onPressed: (() => VoidCallback),
onLongPress: () {
garage.deleteAllCars();
// VoidCallback;
},
child: Row(
children: const <Widget>[
Icon(Icons.delete),
Text('Remove All Cars'),
],
),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => garage.getCars()),
// onPressed: (() => VoidCallback),
child: Row(
children: const <Widget>[
Icon(Icons.sync),
Text('Refresh garage'),
],
),
),
),
const Garage(), // list of cars in garage
],
),
),
floatingActionButton: FloatingActionButton(
child: const Icon(Icons.add),
onPressed: () {
Navigator.push(context,
MaterialPageRoute(builder: (context) => const NewCarScreen()));
},
),
);
}
}
class AboutScreen extends StatelessWidget {
// change to AboutDialog
const AboutScreen(
{super.key}); //https://api.flutter.dev/flutter/material/AboutDialog-class.html
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('About Page'),
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
),
body: const Center(
child: Text('About Page Text, Lorum Ipsum and whatnot.'),
));
}
}
class NewCarScreen extends StatefulWidget {
const NewCarScreen({super.key});
@override
State<NewCarScreen> createState() => _NewCarScreenState();
}
class _NewCarScreenState extends State<NewCarScreen> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
Car _car = Car(); //initialization is required
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Add New Car'),
backgroundColor: Colors.indigo,
),
body: Container(
padding: const EdgeInsets.all(32),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
TextFormField(
decoration: const InputDecoration(
labelText: 'Nickname',
),
onSaved: (val) => setState(() => _car.nickname = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a nickname';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => _car.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'License Plate',
),
onSaved: (val) => setState(() => _car.plate = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a license plate';
}
return null;
},
),
TextFormField(
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => _car.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 16.0),
child: ElevatedButton(
// onPressed: () => _onSubmit(context),
onPressed: () {
final _form = _formKey.currentState!;
if (_form.validate()) {
//validate form
_form
.save(); //save values (reqd before putting them anywhere)
setState(() {
//modify state of car (necessary?)
_car = Car(
vin: _car.vin,
nickname: _car.nickname,
plate: _car.plate,
mileage: _car.mileage);
});
var garage =
context.read<GarageModel>(); //implement Provider
garage.add(_car);
_form.reset();
Navigator.pushNamed(context, '/');
}
},
child: Row(
children: const <Widget>[
Icon(Icons.add),
Text('Add Car'),
],
),
),
),
],
),
),
),
);
}
_onSubmit(context) async {
final _form = _formKey.currentState!;
if (_form.validate()) {
//validate form
_form.save(); //save values (reqd before putting them anywhere)
setState(() {
//modify state of car (necessary?)
_car = Car(
vin: _car.vin,
nickname: _car.nickname,
plate: _car.plate,
mileage: _car.mileage);
});
var garage = context.read<GarageModel>(); //implement Provider
garage.add(_car);
_form.reset();
Navigator.pushNamed(context, '/');
}
}
}
class CarDetailScreen extends StatelessWidget {
const CarDetailScreen({super.key, required this.car, required this.carIndex});
final Car car;
final int carIndex; //pass this thru for edit screen
@override
Widget build(BuildContext context) {
// const Car car = context.read<GarageModel>()._cars[index];
return Scaffold(
appBar: AppBar(
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
title: Text(car.nickname ?? ""),
),
body: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
const Text("plh img picker"),
Center(
child: Ink(
decoration: const ShapeDecoration(
color: Colors.lightBlue, shape: CircleBorder()),
child: IconButton(
icon: const Icon(Icons.edit),
color: Colors.white,
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
EditCarScreen(car: car, carIndex: carIndex)),
);
},
),
),
),
],
),
IconButton(
iconSize: 48.0,
icon: const Icon(Icons.directions_car),
onPressed: (() => VoidCallback),
),
Text("Nickname: ${car.nickname}"),
Text("VIN: ${car.vin}"),
Text("License Plate: ${car.plate}"),
Text("Mileage: ${car.mileage.toString()}"),
],
),
),
floatingActionButton: FloatingActionButton(
child: const Icon(Icons.edit),
onPressed: (() => VoidCallback), //add Transaction
),
);
}
}
class EditCarScreen extends StatefulWidget {
EditCarScreen({super.key, required this.car, required this.carIndex});
Car car;
int carIndex;
@override
State<EditCarScreen> createState() => _EditCarScreenState();
}
class _EditCarScreenState extends State<EditCarScreen> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
late Car car = widget.car; //initialization is required
late int carIndex = widget.carIndex;
@override
Widget build(BuildContext context) {
var garage = context.read<GarageModel>();
return Scaffold(
appBar: AppBar(
title: Text("Edit ${car.nickname}"),
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
),
body: Container(
padding: const EdgeInsets.all(16),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
TextFormField(
initialValue: car.nickname,
decoration: const InputDecoration(
labelText: 'Nickname',
),
onSaved: (val) => setState(() => car.nickname = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a nickname';
}
return null;
},
),
TextFormField(
initialValue: car.vin,
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => car.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
initialValue: car.plate,
decoration: const InputDecoration(
labelText: 'License Plate',
),
onSaved: (val) => setState(() => car.plate = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a license plate';
}
return null;
},
),
TextFormField(
initialValue: car.mileage.toString(),
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => car.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: () {
final updateForm = _formKey.currentState!;
if (updateForm.validate()) {
//validate form
updateForm
.save(); //save values (reqd before putting them anywhere)
/* setState(() {
//modify state of car (necessary?)
car = garage._cars[carIndex];
car
vin: car.vin,
nickname: car.nickname,
plate: car.plate,
mileage: car.mileage);
}); //implement Provider */
garage.update(car, carIndex);
updateForm.reset();
Navigator.pushNamed(context, '/');
}
},
child: Row(
children: const <Widget>[
//expand these children, too tight
Icon(Icons.save),
Text('Save Changes'),
],
),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
onLongPress: () {
garage.delete(car);
Navigator.pushNamed(context, '/');
},
child: Row(children: const <Widget>[
Icon(Icons.delete),
Text('Delete'),
]),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
child: Row(children: const <Widget>[
Icon(Icons.sync_alt),
Text('enable/disable'),
]),
),
),
],
),
),
),
);
}
}
class NewTxn extends StatefulWidget {
NewTxn({super.key, required this.car});
Car car;
@override
State<NewTxn> createState() => _NewTxnState();
}
class _NewTxnState extends State<NewTxn> {
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
late Car car = widget.car; //initialization is required
Txn txn = Txn();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Edit ${car.nickname}"),
backgroundColor: const Color.fromARGB(255, 185, 47, 5),
),
body: Container(
padding: const EdgeInsets.all(16),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
//new car form text fields
/* RadioListTile(
value: ,
), */
TextFormField(
initialValue: car.vin,
decoration: const InputDecoration(
labelText: 'VIN',
),
onSaved: (val) => setState(() => car.vin = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a unique VIN';
}
return null;
},
),
TextFormField(
initialValue: car.plate,
decoration: const InputDecoration(
labelText: 'License Plate',
),
onSaved: (val) => setState(() => car.plate = val),
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter a license plate';
}
return null;
},
),
TextFormField(
initialValue: car.mileage.toString(),
decoration: const InputDecoration(
labelText: 'Mileage',
),
onSaved: (val) =>
setState(() => car.mileage = int.parse(val ?? "")),
// inputFormatters: <TextInputFormatter>[FilteringTextInputFormatter.digitsOnly] //try this?
keyboardType: TextInputType.number,
validator: (String? value) {
if (value == null || value.isEmpty) {
return 'Please enter car\'s current mileage';
}
return null;
},
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: () {
final updateForm = _formKey.currentState!;
if (updateForm.validate()) {
//validate form
updateForm
.save(); //save values (reqd before putting them anywhere)
/* setState(() {
//modify state of car (necessary?)
car = garage._cars[carIndex];
car
vin: car.vin,
nickname: car.nickname,
plate: car.plate,
mileage: car.mileage);
}); //implement Provider */
garage.update(car, carIndex);
updateForm.reset();
Navigator.pushNamed(context, '/');
}
},
child: Row(
children: const <Widget>[
//expand these children, too tight
Icon(Icons.save),
Text('Save Changes'),
],
),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
onLongPress: () {
garage.delete(car);
Navigator.pushNamed(context, '/');
},
child: Row(children: const <Widget>[
Icon(Icons.delete),
Text('Delete'),
]),
),
),
Padding(
padding: const EdgeInsets.symmetric(vertical: 4.0),
child: ElevatedButton(
onPressed: (() => VoidCallback),
child: Row(children: const <Widget>[
Icon(Icons.sync_alt),
Text('enable/disable'),
]),
),
),
],
),
),
),
);
}
}
/* class IconPicker extends SimpleDialog {
IconPicker({super.key})
@override
Widget build (BuildContext context) {
return SimpleDialog(
title: const Text("Pick an icon"),
);
}
} */

43
lib/models/car.dart Normal file
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class Car {
static const tblCars = 'cars';
static const colId = 'id';
static const colVin = 'vin';
static const colNickname = 'nickname';
static const colPlate = 'plate';
static const colMileage = 'mileage';
Car({this.id, this.vin, this.plate, this.nickname, this.mileage});
Car.fromMap(Map<String, dynamic> map) {
id = map[colId];
vin = map[colVin];
nickname = map[colNickname];
plate = map[colPlate];
mileage = map[colMileage];
}
int? id;
String? vin;
String? plate;
String? nickname;
int? mileage;
Map<String, dynamic> toMap() {
var map = <String, dynamic>{
colVin: vin,
colPlate: plate,
colNickname: nickname,
colMileage: mileage,
};
// if (id != null) {
// map[colId] = id; //not sure https://www.youtube.com/watch?v=tj7Lj9a3fyM
// }
return map;
}
/* <String, dynamic> toString() {
const output = """nickname: $colNickname, id: $colId, vin: $colVin,
plate: $colPlate, mileage: ($colMileage.runtimeType) $colMileage """;
return output;
} */
}

49
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class Txn {
static const tblTxns = 'txns';
static const colId = 'id';
static const colType = 'txntype';
static const colDatetime = 'datetime';
static const colCost = 'cost';
static const colMileage = 'mileage';
static const colNote = 'note';
static const colCarId = 'carid';
Txn(
{this.id,
this.txntype,
this.datetime,
this.cost,
this.mileage,
this.note,
this.carid});
Txn.fromMap(Map<String, dynamic> map) {
id = map[colId];
txntype = map[colType];
datetime = map[colDatetime];
cost = map[colCost];
mileage = map[colMileage];
note = map[colNote];
carid = map[colCarId];
}
int? id;
String? txntype;
int? datetime; // store as integer unix time
double? cost;
int? mileage;
String? note;
int? carid;
Map<String, dynamic> toMap() {
var map = <String, dynamic>{
colType: txntype,
colDatetime: datetime,
colCost: cost,
colMileage: mileage,
colNote: note,
colCarId: carid,
};
return map;
}
}

120
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import 'dart:io';
import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';
import 'package:path_provider/path_provider.dart';
import 'package:dash/models/car.dart';
import 'package:dash/models/txn.dart';
//https://suragch.medium.com/simple-sqflite-database-example-in-flutter-e56a5aaa3f91
// class dbWrapper {
// if (Platform.isWindows or Platform.isLinux or ) {
// print('build does not support sqlite')
// }
// }
class DbHelperSqlite {
final _dbName = "cars_sqlite.db";
final _dbVersion = 1;
// make singleton class
DbHelperSqlite._privateConstructor();
static final DbHelperSqlite instance = DbHelperSqlite._privateConstructor();
static Database? _database;
Future<Database?> get database async {
_database = await _initDatabase();
return _database!;
}
// open db and create if not exists
_initDatabase() async {
print('initializing db');
Directory documentsDirectory = await getApplicationDocumentsDirectory();
String dbPath = join(documentsDirectory.path, _dbName);
return await openDatabase(dbPath, version: _dbVersion, onCreate: _onCreate);
}
Future _onCreate(Database db, int version) async {
//docs say to avoid autoincrement
//looks like this may be a null issue?
await db.execute('''
CREATE TABLE ${Car.tblCars} (
${Car.colId} INTEGER PRIMARY KEY,
${Car.colVin} TEXT UNIQUE,
${Car.colNickname} TEXT,
${Car.colMileage} INTEGER,
${Car.colPlate} TEXT);
CREATE TABLE ${Txn.tblTxns} (
${Txn.colId} INTEGER PRIMARY KEY,
${Txn.colType} TEXT,
${Txn.colDatetime} INTEGER,
${Txn.colCost} REAL,
${Txn.colMileage} INTEGER,
${Txn.colNote} TEXT,
FOREIGN KEY(${Txn.colCarId}) REFERENCES ${Car.tblCars}(${Car.colId}),
)''');
}
Future<int> insertCar(Car car) async {
Database db = await instance.database as Database;
return await db.insert(Car.tblCars, car.toMap(),
conflictAlgorithm: ConflictAlgorithm.abort);
}
Future<List<Car>> fetchCars() async {
Database db = await database as Database;
List<Map<String, dynamic>> cars = await db.query(Car.tblCars);
if (cars.isEmpty) {
return [];
} else {
return cars.map((car) => Car.fromMap(car)).toList();
}
}
Future<int> updateCar(Car car) async {
Database db = await instance.database as Database;
print('car id to update: ${car.id}');
return await db.update(Car.tblCars, car.toMap(),
where: '${Car.colId}=?', whereArgs: [car.id]);
}
Future<int> deleteCar(Car car) async {
Database db = await instance.database as Database;
print('car id to delete: ${car.id}');
return await db
.delete(Car.tblCars, where: '${Car.colId}=?', whereArgs: [car.id]);
}
Future<int> deleteAll() async {
Database db = await instance.database as Database;
return await db.rawDelete("DELETE FROM ${Car.tblCars}");
}
}
// flutter ex: https://docs.flutter.dev/cookbook/persistence/sqlite
/* Future<void> insertCar(Car car) async {
final db = await database;
await db.insert(
'cars',
car.toMap(),
conflictAlgorithm: ConflictAlgorithm.abort,
);
} */
/* Future<void> insertTestCar(Car car) async {
final db = await database;
await db.insert('cars', car.toMap(),
conflictAlgorithm: ConflictAlgorithm.abort);
}
Future<int> deleteCar(String vin) async {
Database db = await instance.database;
return await db.delete(tableCars, where: '$colVin=?', whereArgs: [vin]);
}
Future<List<Map<String, dynamic>>> queryAllCars() async {
Database db = await instance.database;
return await db.query(tableCars);
}
} */