2 * Copyright © 2018 Damyan Ivanov.
3 * This file is part of Mobile-Ledger.
4 * Mobile-Ledger is free software: you can distribute it and/or modify it
5 * under the term of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your opinion), any later version.
9 * Mobile-Ledger is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License terms for details.
14 * You should have received a copy of the GNU General Public License
15 * along with Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
18 package net.ktnx.mobileledger.ui.transaction_list;
20 import android.arch.lifecycle.ViewModel;
21 import android.database.Cursor;
22 import android.database.sqlite.SQLiteDatabase;
24 import net.ktnx.mobileledger.model.LedgerTransaction;
25 import net.ktnx.mobileledger.model.LedgerTransactionItem;
26 import net.ktnx.mobileledger.utils.MobileLedgerDatabase;
28 import java.util.ArrayList;
29 import java.util.List;
31 public class TransactionListViewModel extends ViewModel {
33 private List<LedgerTransaction> transactions;
35 public List<LedgerTransaction> getTransactions(MobileLedgerDatabase dbh) {
36 if (transactions == null) {
37 transactions = new ArrayList<>();
38 reloadTransactions(dbh);
43 private void reloadTransactions(MobileLedgerDatabase dbh) {
45 String sql = "SELECT id, date, description FROM transactions";
46 sql += " ORDER BY date desc, id desc";
48 try (SQLiteDatabase db = dbh.getReadableDatabase()) {
49 try (Cursor cursor = db.rawQuery(sql, null)) {
50 while (cursor.moveToNext()) {
51 LedgerTransaction tr =
52 new LedgerTransaction(cursor.getString(0), cursor.getString(1),
54 try (Cursor cAcc = db.rawQuery("SELECT account_name, amount, currency FROM " +
55 "transaction_accounts WHERE transaction_id = ?",
56 new String[]{tr.getId()}))
58 while (cAcc.moveToNext()) {
60 new LedgerTransactionItem(cAcc.getString(0), cAcc.getFloat(1),