Error in SQL query in TransactionMethods.selectById()

[jackrua]

While working on #149, I have noticed that this query returns an error:

sossoldi/lib/model/transaction.dart

Lines 195 to 204 in 366238e

	Future<Transaction> selectById(int id) async {
	final db = await database;
	final maps = await db.rawQuery('SELECT t.*, c.${CategoryTransactionFields.name} as ${TransactionFields.categoryName}, c.${CategoryTransactionFields.color} as ${TransactionFields.categoryColor}, c.${CategoryTransactionFields.symbol} as ${TransactionFields.categorySymbol}, b1.${BankAccountFields.name} as ${TransactionFields.bankAccountName}, b2.${BankAccountFields.name} as ${TransactionFields.bankAccountTransferName} FROM $transactionTable as t LEFT JOIN $categoryTransactionTable as c ON t.${TransactionFields.idCategory} = c.${CategoryTransactionFields.id} LEFT JOIN $bankAccountTable as b1 ON t.${TransactionFields.idBankAccount} = b1.${BankAccountFields.id} LEFT JOIN $bankAccountTable as b2 ON t.${TransactionFields.idBankAccountTransfer} = b2.${BankAccountFields.id} WHERE t.${TransactionFields.id} = ?', [id]);
	if (maps.isNotEmpty) {
	return Transaction.fromJson(maps.first);
	} else {
	throw Exception('ID $id not found');
	}
	}

The fix is easy but I would rather close this issue before moving on to push the whole PR.

[theperu]

IMHO you can open just one PR with both fixes, maybe you could have separated commits and make it also clear in the description of the PR itself