Remove silent unwrap in data providers

src/dictionary.rs

@@ -210,9 +210,7 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
             SaveGroup => {
                 let state = &mut self.state.lock().unwrap();
                 let connection = &state.connection;
-                let mut group = state
-                    .word_groups[self.selected_group_index]
-                    .clone();
+                let mut group = state.word_groups[self.selected_group_index].clone();
 
                 update_group(&mut group, connection);
                 state.word_groups[self.selected_group_index] = group;
@@ -274,7 +272,7 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
                     self.groups_panel(),
                     row![horizontal().width(8), self.words_list(),],
                     row![
-                        button("Добавить слово").style(jl_button).on_press(NewWord),
+                        self.add_word_button(),
                         horizontal().width(Fill),
                         button("Импорт").style(text).on_press(ToImport),
                     ]
@@ -598,6 +596,21 @@ impl DictionaryState {
             space().into()
         }
     }
+
+    fn add_word_button(&self) -> iced::Element<'_, DictionaryMessage> {
+        let state = self.state.lock().unwrap();
+        let group_id = state.word_groups[self.selected_group_index].id;
+        let button = button("Добавить слово")
+            .style(jl_button);
+
+        if group_id.is_valid() {
+            return
+                button.on_press(NewWord)
+                .into();
+        }
+
+        button.into()
+    }
 }
 
 pub fn split_with_coma(ts: &str) -> Vec<String> {