fu: single transaction list

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / transaction_list / TransactionListViewModel.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
index 1482c1d59d991b7f3bc2c459db9d72d7da315038..480c0de271b9d4d71d0f2215c84102a04e482c07 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
+++ b/app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListViewModel.java
@@ -18,38 +18,42 @@
 package net.ktnx.mobileledger.ui.transaction_list;
 
 import android.arch.lifecycle.ViewModel;
+import android.content.Context;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
+import android.util.Log;
 
 import net.ktnx.mobileledger.model.LedgerTransaction;
-import net.ktnx.mobileledger.utils.MobileLedgerDatabase;
+import net.ktnx.mobileledger.utils.MLDB;
 
 import java.util.ArrayList;
-import java.util.List;
 
 public class TransactionListViewModel extends ViewModel {
 
-    private List<LedgerTransaction> transactions;
+    private ArrayList<LedgerTransaction> transactions;
 
-    public List<LedgerTransaction> getTransactions(MobileLedgerDatabase dbh) {
-        if (transactions == null) {
-            transactions = new ArrayList<>();
-            reloadTransactions(dbh);
-        }
+    public void reloadTransactions(Context context) {
+        ArrayList<LedgerTransaction> newList = new ArrayList<>();
 
-        return transactions;
-    }
-    private void reloadTransactions(MobileLedgerDatabase dbh) {
-        transactions.clear();
         String sql = "SELECT id FROM transactions ORDER BY date desc, id desc";
 
-        try (SQLiteDatabase db = dbh.getReadableDatabase()) {
+        try (SQLiteDatabase db = MLDB.getReadableDatabase(context)) {
             try (Cursor cursor = db.rawQuery(sql, null)) {
                 while (cursor.moveToNext()) {
-                    transactions.add(new LedgerTransaction(cursor.getInt(0)));
+                    newList.add(new LedgerTransaction(cursor.getInt(0)));
                 }
+                transactions = newList;
+                Log.d("transactions", "transaction list updated");
             }
         }
 
     }
+    public LedgerTransaction getTransaction(int position) {
+        if (position >= transactions.size()) return null;
+        return transactions.get(position);
+    }
+    public int getTransactionCount() {
+        if (transactions == null) return 0;
+        return transactions.size();
+    }
 }