UpdateTransactionsTask.java

   1 /*
   2  * Copyright © 2019 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.
   8  *
   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.
  13  *
  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/>.
  16  */
  17
  18 package net.ktnx.mobileledger.async;
  19
  20 import android.database.Cursor;
  21 import android.database.sqlite.SQLiteDatabase;
  22 import android.os.AsyncTask;
  23 import android.util.Log;
  24
  25 import net.ktnx.mobileledger.model.Data;
  26 import net.ktnx.mobileledger.model.LedgerTransaction;
  27 import net.ktnx.mobileledger.model.TransactionListItem;
  28 import net.ktnx.mobileledger.utils.Globals;
  29 import net.ktnx.mobileledger.utils.MLDB;
  30
  31 import java.text.ParseException;
  32 import java.util.ArrayList;
  33 import java.util.Date;
  34
  35 public class UpdateTransactionsTask extends AsyncTask<String, Void, String> {
  36     protected String doInBackground(String[] filterAccName) {
  37         Data.backgroundTaskCount.incrementAndGet();
  38         String profile_uuid = Data.profile.get().getUuid();
  39         try {
  40             ArrayList<TransactionListItem> newList = new ArrayList<>();
  41
  42             String sql;
  43             String[] params;
  44
  45             if (filterAccName[0] == null) {
  46                 sql = "SELECT id, date FROM transactions WHERE profile=? ORDER BY date desc, id " +
  47                       "desc";
  48                 params = new String[]{profile_uuid};
  49
  50             }
  51             else {
  52                 sql = "SELECT distinct tr.id, tr.date from transactions tr JOIN " +
  53                       "transaction_accounts ta " +
  54                       "ON ta.transaction_id=tr.id AND ta.profile=tr.profile WHERE tr.profile=? " +
  55                       "and ta.account_name LIKE ?||'%' AND ta" +
  56                       ".amount <> 0 ORDER BY tr.date desc, tr.id desc";
  57                 params = new String[]{profile_uuid, filterAccName[0]};
  58             }
  59
  60             Log.d("UTT", sql);
  61             SQLiteDatabase db = MLDB.getReadableDatabase();
  62             Date lastDate = null;
  63             boolean odd = true;
  64             try (Cursor cursor = db.rawQuery(sql, params)) {
  65                 while (cursor.moveToNext()) {
  66                     if (isCancelled()) return null;
  67
  68                     int transaction_id = cursor.getInt(0);
  69                     String dateString = cursor.getString(1);
  70                     Date date = Globals.parseLedgerDate(dateString);
  71
  72                     if ((lastDate == null) || !lastDate.equals(date)) {
  73                         boolean showMonth = (lastDate == null) || (date != null) &&
  74                                                                   (date.getMonth() !=
  75                                                                    lastDate.getMonth() ||
  76                                                                    date.getYear() !=
  77                                                                    lastDate.getYear());
  78                         newList.add(new TransactionListItem(date, showMonth));
  79                     }
  80                     newList.add(
  81                             new TransactionListItem(new LedgerTransaction(transaction_id), odd));
  82 //                    Log.d("UTT", String.format("got transaction %d", transaction_id));
  83
  84                     lastDate = date;
  85                     odd = !odd;
  86                 }
  87                 Data.transactions.set(newList);
  88                 Log.d("UTT", "transaction list value updated");
  89             }
  90
  91             return null;
  92         }
  93         catch (ParseException e) {
  94             return String.format("Error parsing stored date '%s'", e.getMessage());
  95         }
  96         finally {
  97             Data.backgroundTaskCount.decrementAndGet();
  98         }
  99     }
 100 }