lib/add_form.dart

@@ -84,9 +84,11 @@ class _AddFormState extends State<AddForm> {
               DropdownButtonFormField<int>(
                 focusNode: _TemplateFocusNode,
                 value: _templatChoice,
-                onChanged: (value) => setState(() {
-                  _templatChoice = value!;
-                }),
+                onChanged: (value) {
+                  setState() {
+                    _templatChoice = (value != null) ? value : -1;
+                  }
+                },
                 decoration:
                     const InputDecoration(labelText: "Starting Template"),
                 items: generateDropdown(),
@@ -99,16 +101,11 @@ class _AddFormState extends State<AddForm> {
         child: Icon(Icons.save_alt),
         onPressed: () async {
           if (_formKey.currentState!.validate()) {
-            int id = await DBHelper.dbHelper.insertList(
-              data.List(
-                _listLabel,
-                isTemplate: type.index == 1,
-                // TODO Add description to lists
-              ),
-            );
-            if (_templatChoice >= 0 && _templatChoice < templates.length) {
-              DBHelper.dbHelper.copyList(templates[_templatChoice].id!, id);
-            }
+            DBHelper.dbHelper.insertList(data.List(
+              _listLabel,
+              isTemplate: type.index == 1,
+            ));
+            // TODO implement template starting point
             Navigator.pop(context); // TODO replace route with checklist page
           }
         },

lib/box_checker.dart

@@ -53,10 +53,6 @@ class _MainListPageState extends State<MainListPage> {
     });
   }
 
-  Future<void> _removeList(data.List list) async {
-    DBHelper.dbHelper.deleteList(list);
-  }
-
   @override
   void initState() {
     _loadData(data.Page.lists);
@@ -88,66 +84,17 @@ class _MainListPageState extends State<MainListPage> {
             child: ListView.builder(
                 itemCount: lists.length,
                 itemBuilder: (context, index) {
-                  return Dismissible(
-                    direction: DismissDirection.startToEnd,
-                    key: Key(lists[index].id.toString()),
-                    background: Card(
-                      color: Colors.red,
-                      child: Row(
-                        children: const [
-                          Padding(
-                            padding: EdgeInsets.all(10),
-                            child: Icon(Icons.delete),
-                          ),
-                        ],
-                      ),
-                    ),
-                    confirmDismiss: (direction) async {
-                      if (direction != DismissDirection.startToEnd) {
-                        return false;
-                      }
-
-                      showDialog(
-                          context: context,
-                          builder: (context) {
-                            return AlertDialog(
-                              title: const Text('Are you sure?'),
-                              content: const Text(
-                                  'You are about to delete this permently'),
-                              actions: [
-                                TextButton(
-                                    onPressed: () =>
-                                        Navigator.pop(context, false),
-                                    child: const Text('Cancel')),
-                                TextButton(
-                                    onPressed: () =>
-                                        Navigator.pop(context, true),
-                                    child: const Text('OK')),
-                              ],
-                            );
-                          }).then((value) {
-                        if (value) {
-                          setState(() {
-                            _removeList(lists[index]);
-                            lists.removeAt(index);
-                          });
-                        }
-
-                        return value;
-                      });
-                    },
-                    child: Card(
-                      child: ListTile(
-                        onTap: () {
-                          Navigator.push(
-                              context,
-                              MaterialPageRoute(
-                                  builder: (context) =>
-                                      CheckList(id: lists[index].id!)));
-                        },
-                        title: Text(lists[index].name),
-                        subtitle: Text(lists[index].id.toString()),
-                      ),
+                  return Card(
+                    child: ListTile(
+                      onTap: () {
+                        Navigator.push(
+                            context,
+                            MaterialPageRoute(
+                                builder: (context) =>
+                                    CheckList(id: lists[index].id!)));
+                      },
+                      title: Text(lists[index].name),
+                      subtitle: Text(lists[index].id.toString()),
                     ),
                   );
                 })),

lib/db_helper.dart

@@ -77,35 +77,6 @@ class DBHelper {
     return db.insert("List", l.toMap());
   }
 
-  Future<int> deleteList(data.List l) async {
-    Database db = await database;
-
-    db.delete("Item", where: 'list_id = ?', whereArgs: [l.id]);
-    return db.delete("List", where: 'id = ?', whereArgs: [l.id]);
-  }
-
-  Future<void> copyList(int oldID, int newID) async {
-    Database db = await database;
-    print('$newID, $oldID');
-
-    var batch = db.batch();
-    db.execute("""
-      CREATE TEMPORARY TABLE list_copy AS
-        SELECT check_text, status, list_id
-        FROM Item
-        WHERE list_id = ?
-    """, [oldID]);
-    db.update("list_copy", {'list_id': newID});
-    db.rawInsert("""
-      INSERT INTO Item(check_text, status, list_id)
-      SELECT * FROM list_copy
-    """);
-    db.execute("""
-      DROP TABLE list_copy
-    """);
-    batch.commit();
-  }
-
   Future<int> insertItem(data.Check item) async {
     Database db = await database;