sqflite broke on Android after adding a new table Flutter - sqlite

Question

I just added a new "Translations" table to the database init and wrote all the crud methods. Commands db.query and db.insert work just fine, but as tried inside updateVersion() either db.delete or db.update throw the missing plugin error :
ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: MissingPluginException(No implementation found for method update on channel com.tekartik.sqflite).
After a while I realised that also older two tables are now throwing the same error on delete and update command. Looks like adding a new table broke it all.. I tried flutter clean but nothing changed, so I uninstalled and reinstalled the app, but I still get same errors. I then commented out new table and reinstalled the app but still get the errors..I also tried invalidating the cache a restart but still the same..
On iPhone dough it does not throw any error..
In iOS CoreData kinda behaves the same when you change something.. but with a fresh app install it all resets.. here it seems that the db is still written on disk..
How do I make sure I erased it? I tried await deleteDatabase(path);.
Any Idea of what's going on?
As always thank you very much for your time and help.
This is the db:
class DBProvider {
//1.Create a private constructor that can be used only inside the class :
DBProvider._();
static final DBProvider db = DBProvider._();
//2.Setup the database
//Next we will create the database object and provide it with a getter
//where we will instantiate the database if it’s not (lazy initialization).
static Database _database;
Future<Database> get database async {
if (_database != null) return _database;
// await Sqflite.devSetDebugModeOn(true);
// if _database is null we instantiate it
_database = await initDB();
return _database;
}
// If there is no object assigned to the database,
// we use the initDB function to create the database.
// In this function, we will get the path for storing the database
// and create the desired tables:
initDB() async {
Directory documentsDirectory = await getApplicationDocumentsDirectory();
String path = join(documentsDirectory.path, "Fixit.db");
//TODO: tried deleting
// await deleteDatabase(path); // still errors
return await openDatabase(path, version: 1, onOpen: (db) {},
onCreate: (Database db, int version) async {
await db.execute("CREATE TABLE Route("
"routeId TEXT,"
"routeName TEXT,"
"routeDistance TEXT,"
"routeDuration TEXT,"
"coordinates TEXT"
")");
await db.execute("CREATE TABLE Alarm("
"alarmId TEXT,"
"alarmName TEXT,"
"enabled BOOL,"
"repeatWeekdays TEXT,"
"time TEXT,"
"sound TEXT,"
"routeName TEXT"
")");
// await db.execute("CREATE TABLE Translations("
// "version TEXT"
// ")");
});
}
}
and these are the CRUD methods:
class DefaultsDbRepository {
var database = DBProvider.db.database;
Future<int> checkVersion() async {
final db = await database;
try {
var res = await db.query('Translations');
assert(res != null);
int version = res != null ? int.parse(res.first['version']) : 0;
print('checkVersion() db version is: $version');
return version;
} catch (err) {
print(err);
}
}
saveVersion({int version}) async {
print('saveVersion() version to save is : $version');
assert(version != null);
final db = await database;
try {
Map<String, dynamic> map = {'version': version};
db.insert("Translations", map);
} catch (e) {
print(e);
}
}
updateVersion({int newVersion, int oldVersion}) async {
print('updateVersion() version to save is : $newVersion');
assert(newVersion != null);
final db = await database;
db.delete("Translations");
try {
// Map<String, dynamic> map = {'version': newVersion};
//
// db.insert("Translations", map);
// db.update("Translations", map); // [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: MissingPluginException(No implementation found for method update on channel com.tekartik.sqflite)
// db.update("Translations", map,
// where: "version = ?", whereArgs: [oldVersion]);
} catch (e) {
print(e);
}
}
}

Answer 1

Finally made it work again. After quite a few, uninstall, flutter clean and reinstalls I saw the problem. I was using ' instead of " in my db methods.
So I changed'ed from:
saveVersion({int version}) async {
print('saveVersion() version to save is : $version');
assert(version != null);
final db = await database;
try {
Map<String, dynamic> map = {'version': version};
db.insert("Translations", map);
} catch (e) {
print(e);
}
}
to:
saveVersion({int version}) async {
print('saveVersion() version to save is : $version');
assert(version != null);
final db = await database;
try {
Map<String, dynamic> map = {"version": version};
db.insert("Translations", map);
} catch (e) {
print(e);
}
}
and all commands are working as expected.
Hope this will be of help to others.
Cheers.