Start filling in TODO's with Income and Asset code..

lib/pages/home.dart

@@ -39,6 +39,7 @@ class _HomePageState extends State<HomePage> {
           notifyParent: refresh,
           type: ItemType.expense,
         );
+        break;
       case 1:
         page = TrackedItemPage(
           assetsToLoad: DatabaseHelper.instance.getIncomes(),
@@ -47,6 +48,7 @@ class _HomePageState extends State<HomePage> {
           notifyParent: refresh,
           type: ItemType.income,
         );
+        break;
       case 2:
         page = TrackedItemPage(
           assetsToLoad: DatabaseHelper.instance.getAssets(),
@@ -55,12 +57,16 @@ class _HomePageState extends State<HomePage> {
           notifyParent: refresh,
           type: ItemType.asset,
         );
+        break;
       case 3:
         page = ProjectionPage();
+        break;
       case 4:
         page = SettingsPage();
+        break;
       case 5:
         page = HelpPage();
+        break;
       default:
         throw UnimplementedError('No widget for page $pageSelected yet!');
     }

lib/pages/tracked_item.dart

@@ -10,8 +10,6 @@ import '/models/expense.dart';
 import '/models/frequency.dart';
 import '/db.dart';
 
-// TODO: Make this a generic UI based on a superclass of Expense, Income, and Assets.
-
 class TrackedItemPage extends StatefulWidget {
   final Future<List<TrackedItem>> assetsToLoad;
 
@@ -144,13 +142,19 @@ class _TrackedItemPageState extends State<TrackedItemPage> {
                             snapshot.data!.remove(curr);
                             switch (direction) {
                               case DismissDirection.startToEnd:
+                                // Remove the item from the database.
                                 if (curr is Expense) {
-                                  DatabaseHelper.instance
+                                  DatabaseHelper.instance.removeExpense(
-                                      .removeExpense(curr.id!);
+                                    curr.id!,
+                                  );
                                 } else if (curr is Income) {
-                                  // TODO
+                                  DatabaseHelper.instance.removeIncome(
+                                    curr.id!,
+                                  );
                                 } else if (curr is Asset) {
-                                  // TODO
+                                  DatabaseHelper.instance.removeAsset(
+                                    curr.id!,
+                                  );
                                 } else {
                                   throw UnimplementedError(
                                       "Cannot remove unimplemented item type.");
@@ -304,10 +308,10 @@ class _TrackedItemInputDialogState extends State<TrackedItemInputDialog> {
                       DatabaseHelper.instance.addExpense(widget.entry!);
                       break;
                     case ItemType.income:
-                      // TODO
+                      DatabaseHelper.instance.addIncome(widget.entry!);
                       break;
                     case ItemType.asset:
-                      // TODO
+                      DatabaseHelper.instance.addAsset(widget.entry!);
                       break;
                     default:
                       throw UnimplementedError(