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work in progress database

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This commit is contained in:
Joe Küng
2023-09-29 11:38:06 +02:00
parent 039fde6dbe
commit b75903e3cb
6 changed files with 112 additions and 142 deletions
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81
lib/database/controller.dart Normal file
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@@ -0,0 +1,81 @@
import '../model/note.dart';
import '../model/promemoria.dart';
import 'database.dart';
class Controller {
NoteDatabase database = NoteDatabase.instance;
Future<List<Note>> getAllNote() async {
final db = await database.database;
var notes = await db.query(noteTable);
List<Note> noteList = notes.map((e) => Note.fromJson(e)).toList();
return noteList;
}
Future<List<Promemoria>> getAllPromemoria() async {
final db = await database.database;
var promemorias = await db.query(promemoriaTable);
List<Promemoria> promemoriaList =
promemorias.map((e) => Promemoria.fromJson(e)).toList();
return promemoriaList;
}
Future<Note> getNoteById(int id) async {
final db = await database.database;
var note = await db.query(noteTable, where: 'id = ?', whereArgs: [id]);
return Note.fromJson(note.first);
}
Future<Promemoria> getPromemoriaById(int id) async {
final db = await database.database;
var promemoria =
await db.query(promemoriaTable, where: 'id = ?', whereArgs: [id]);
return Promemoria.fromJson(promemoria.first);
}
//add note
void addNote(Note note) async {
final db = await database.database;
await db.execute('''
INSERT INTO note (
title,
creationDate,
lastModificationDate,
arrayPromemoria,
description
) VALUES (
'${note.title}',
'${note.creationDate}',
'${note.lastModificationDate}',
'${note.arrayPromemoria}',
'${note.description}'
)
''');
}
//add Promemoria
void addPromemoria(Promemoria promemoria) async {
final db = await database.database;
await db.execute('''
INSERT INTO promemoria (
title,
creationDate,
lastModificationDate,
expirationDate,
arrayPromemoria,
description,
priority,
color
) VALUES (
'${promemoria.title}',
'${promemoria.creationDate}',
'${promemoria.lastModificationDate}',
'${promemoria.expirationDate}',
'${promemoria.arrayPromemoria}',
'${promemoria.description}',
'${promemoria.priority}',
'${promemoria.color}'
)
''');
}
}

120
lib/database/database.dart
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@@ -1,17 +1,12 @@
import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';
// Models
import 'package:progetto_m335_flutter/model/note.dart';
import 'package:progetto_m335_flutter/model/promemoria.dart';
class NoteDatabase {
static final NoteDatabase instance = NoteDatabase._init();
static Database? _database;
// Zero args constructor needed to extend this class
NoteDatabase();
NoteDatabase._init();
Future<Database> get database async {
@@ -29,11 +24,6 @@ class NoteDatabase {
}
Future _createDB(Database database, int version) async {
if (await isDatabaseExists()) {
print("Database already created");
deleteDatabase();
print("Database deleted");
}
await database.execute('''CREATE TABLE promemoria (
id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -64,22 +54,6 @@ class NoteDatabase {
Future fillDemoData(Database database, int version) async {
var nota = Note();
nota.setTitle("Nota 1");
nota.setCreationDate("2023-09-56");
nota.setLastModificationDate("2023-09-56");
nota.setArrayPromemoria("1,2,3,4,5");
nota.setDescription("Questo è un esempio di nota 1.");
await createNote(database, nota);
print(await readNote(1));
nota.setDescription("ciao");
await updateNote (nota);
print(await readNote (1));
// Add fake categories
await database.execute('''
INSERT INTO note (
@@ -92,6 +66,7 @@ class NoteDatabase {
'Nota 2',
'2023-09-28',
'2023-09-28',
'1,1',
'Questo è un esempio di nota 2.'
)
''');
@@ -107,11 +82,11 @@ class NoteDatabase {
'Nota 2',
'2023-09-28',
'2023-09-28',
'1,1',
'Questo è un esempio di nota 2.'
)
''');
// Add currencies
await database.execute('''
INSERT INTO promemoria (
title,
@@ -127,6 +102,7 @@ class NoteDatabase {
'2023-09-27',
'2023-09-27',
'2023-10-05',
'2,1',
'Questo è un esempio di promemoria 1.',
'Alta',
'Rosso'
@@ -149,6 +125,7 @@ class NoteDatabase {
'2023-09-28',
'2023-09-28',
'2023-10-10',
'1,1',
'Questo è un esempio di promemoria 2.',
'Media',
'Verde'
@@ -157,40 +134,6 @@ class NoteDatabase {
print("Demo data inserted");
}
Future clearDatabase() async {
try {
await _database?.transaction((txn) async {
var batch = txn.batch();
batch.delete(noteTable);
batch.delete(promemoriaTable);
await batch.commit();
});
} catch (error) {
throw Exception('DbBase.cleanDatabase: $error');
}
}
Future close() async {
final database = await instance.database;
database.close();
}
Future<void> deleteDatabase() async {
final databasePath = await getDatabasesPath();
final path = join(databasePath, 'note.db');
databaseFactory.deleteDatabase(path);
}
Future<bool> isDatabaseExists() async {
final databasePath = await getDatabasesPath();
final path = join(databasePath, 'note.db');
// Apre il database in modalità sola lettura.
Database database = await openDatabase(path, readOnly: true);
// Restituisce true se il database è stato aperto correttamente, altrimenti false.
return database.isOpen;
}
Future<List<Map>> selectAllPromemoria() async {
final db = await database;
@@ -199,61 +142,6 @@ class NoteDatabase {
return maps;
}
Future<List<Map>> selectAllNotes() async {
final db = await database;
final List<Map<String, dynamic>> maps = await db.query(noteTable);
return maps;
}
Future<void> createNote(Database database, Note note) async {
await database.insert(
'note',
note.toMap(),
conflictAlgorithm: ConflictAlgorithm.replace,
);
print('note $note.title inserted');
}
Future<void> createPromemoria(
Database database, Promemoria promemoria) async {
await database.insert(
'promemoria',
promemoria.toMap(),
conflictAlgorithm: ConflictAlgorithm.replace,
);
print('promemoria $promemoria.title inserted');
}
Future<Map<String, Object?>> readPromemoria(int id) async {
final db = await database;
final results = await db.query('SELECT * FROM note where id=$id');
return results.first;
}
Future<Map<String, Object?>> readNote(int id) async {
final db = await database;
final results = await db.query('SELECT * FROM promemoria where id=$id');
return results.first;
}
Future<void> updatePromemoria(Promemoria promemoria) async {
final db = await database;
await db.update('promemoria', promemoria.toMap(),
where: 'id = ?', whereArgs: [promemoria.getId()]);
}
Future<void> updateNote(Note note) async {
final db = await database;
await db.update('note', note.toMap(),
where: 'id = ?', whereArgs: [note.getId()]);
}
}

19
lib/model/base_entity.dart
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@@ -1,19 +0,0 @@
abstract class BaseEntity{
static String id = 'id';
static String title = 'Title';
static String creationDate = 'CreationDate';
static String lastEditDate = 'LastEditDate';
static String get getId{
return id;
}
static String get getTitle{
return title;
}
static String get getCreationDate{
return creationDate;
}
static String get getLastEditDate{
return lastEditDate;
}
}

16
lib/model/note.dart
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@@ -1,13 +1,13 @@
import 'base_entity.dart';
const String noteTable = 'note';
class Note{
String id;
String id='';
String title;
String creationDate;
String lastModificationDate;
String arrayPromemoria;
String? arrayPromemoria;
String description;
Map<String, dynamic> toMap() {
@@ -30,6 +30,14 @@ class Note{
this.description,
);
Note.newConstructor(
this.title,
this.creationDate,
this.lastModificationDate,
this.arrayPromemoria,
this.description,
);
String getId() {
return id;
}
@@ -62,7 +70,7 @@ class Note{
lastModificationDate = lastModificationDate1;
}
String getArrayPromemoria() {
String? getArrayPromemoria() {
return arrayPromemoria;
}

5
lib/model/promemoria.dart
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@@ -1,4 +1,3 @@
import 'base_entity.dart';
import 'identifiers/enum/color.dart';
import 'identifiers/enum/priority.dart';
@@ -10,7 +9,7 @@ class Promemoria {
String creationDate;
String lastModificationDate;
String expirationDate;
String arrayPromemoria;
String? arrayPromemoria;
String description;
String priority;
String color;
@@ -90,7 +89,7 @@ class Promemoria {
expirationDate = expirationDate1;
}
String getArrayPromemoria() {
String? getArrayPromemoria() {
return arrayPromemoria;
}

13
lib/pages/test.dart
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@@ -1,4 +1,5 @@
import 'package:flutter/material.dart';
import 'package:progetto_m335_flutter/database/controller.dart';
import 'package:progetto_m335_flutter/database/database.dart';
import 'package:progetto_m335_flutter/model/note.dart';
@@ -13,6 +14,7 @@ class Test extends StatefulWidget {
class _TestState extends State<Test> {
NoteDatabase noteDatabase = NoteDatabase.instance;
Controller controller = Controller();
Future<void> _pressed() async {
print("Inserting demo data");
@@ -22,9 +24,20 @@ class _TestState extends State<Test> {
}
Future<void> _printdata() async {
var nota = Note.newConstructor(
"nota 5",
"2023-09-56",
"2023-09-56",
"1,2,3,4,5",
"Questo è un esempio di nota 1.");
final db = await noteDatabase.database;
print("Printing data");
print((await controller.getAllNote()).first);
print(await db.query(noteTable));
print("Data printed");
}