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Start to fix null safety migration errors

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This commit is contained in:
Pierre HUBERT
2022-03-10 19:39:57 +01:00
parent ab2c5da0da
commit 3a997cdc56
258 changed files with 2879 additions and 2912 deletions
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6
lib/helpers/database/database_helper.dart
View File

@ -9,11 +9,11 @@ import 'package:sqflite/sqflite.dart';
/// @author Pierre HUBERT
abstract class DatabaseHelper {
static Database _db;
static Database? _db;
/// Open the database
static Future<void> open() async {
if (_db != null && _db.isOpen) return;
if (_db != null && _db!.isOpen) return;
var databasePath = await getDatabasesPath();
_db = await openDatabase(
@ -24,7 +24,7 @@ abstract class DatabaseHelper {
}
/// Get a database instance
static Future<Database> get() async {
static Future<Database?> get() async {
await open();
return _db;
}

40
lib/helpers/database/model_database_helper.dart
View File

@ -18,12 +18,12 @@ abstract class ModelDatabaseHelper<T extends CacheModel> {
/// Insert an entry in the database
Future<void> _insertDB(T el) async {
await (await DatabaseHelper.get()).insert(tableName(), el.toMap());
await (await DatabaseHelper.get())!.insert(tableName(), el.toMap());
}
/// Update an element in the database
Future<void> _updateDB(T el) async {
await (await DatabaseHelper.get()).update(
await (await DatabaseHelper.get())!.update(
tableName(),
el.toMap(),
where: "${BaseTableContract.C_ID} = ?",
@ -34,14 +34,14 @@ abstract class ModelDatabaseHelper<T extends CacheModel> {
/// Get an element from the database with a specified [id]
///
/// Returns null if none found
Future<T> get(int id) async {
List<Map> maps = await (await DatabaseHelper.get()).query(
Future<T?> get(int id) async {
List<Map> maps = await (await DatabaseHelper.get())!.query(
tableName(),
where: '${BaseTableContract.C_ID} = ?',
whereArgs: [id],
);
if (maps.length > 0) return initializeFromMap(maps[0]);
if (maps.length > 0) return initializeFromMap(maps[0] as Map<String, dynamic>);
return null;
}
@ -50,7 +50,7 @@ abstract class ModelDatabaseHelper<T extends CacheModel> {
///
/// Return true if at least one entry was deleted / false else
Future<bool> delete(int id) async {
return await (await DatabaseHelper.get()).delete(
return await (await DatabaseHelper.get())!.delete(
tableName(),
where: '${BaseTableContract.C_ID} = ?',
whereArgs: [id],
@ -59,22 +59,22 @@ abstract class ModelDatabaseHelper<T extends CacheModel> {
/// Get all the entries from the table
Future<List<T>> getAll() async {
List<Map> maps = await (await DatabaseHelper.get()).query(tableName());
return maps.map((f) => initializeFromMap(f)).toList();
List<Map> maps = await (await DatabaseHelper.get())!.query(tableName());
return maps.map((f) => initializeFromMap(f as Map<String, dynamic>)).toList();
}
/// Get some entries from the table based on some conditions
Future<List<T>> getMultiple(
{bool distinct,
List<String> columns,
String where,
List<dynamic> whereArgs,
String groupBy,
String having,
String orderBy,
int limit,
int offset}) async {
List<Map> maps = await (await DatabaseHelper.get()).query(
{bool? distinct,
List<String>? columns,
String? where,
List<dynamic>? whereArgs,
String? groupBy,
String? having,
String? orderBy,
int? limit,
int? offset}) async {
List<Map> maps = await (await DatabaseHelper.get())!.query(
tableName(),
distinct: distinct,
columns: columns,
@ -86,12 +86,12 @@ abstract class ModelDatabaseHelper<T extends CacheModel> {
limit: limit,
offset: offset,
);
return maps.map((f) => initializeFromMap(f)).toList();
return maps.map((f) => initializeFromMap(f as Map<String, dynamic>)).toList();
}
/// Empty the table
Future<void> clearTable() async {
await (await DatabaseHelper.get()).execute("DELETE FROM ${tableName()}");
await (await DatabaseHelper.get())!.execute("DELETE FROM ${tableName()}");
}
/// Check out whether an element specified with its [id] is present