Rewrite for dictionary indexer

src/dictionary.rs

@@ -150,8 +150,7 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
                         v = v[..v.len() - 2].to_string()
                     }
 
-                    while v.contains(",,") {
-                        let index = v.find(",,").unwrap();
+                    while let Some(index) = v.find(",,") {
                         v.remove(index);
                     }
 
@@ -211,14 +210,12 @@ impl NavigatedPage<DictionaryMessage> for DictionaryState {
             SaveGroup => {
                 let state = &mut self.state.lock().unwrap();
                 let connection = &state.connection;
-                let group = &mut state
-                    .word_groups
-                    .get(self.selected_group_index)
-                    .unwrap()
+                let mut group = state
+                    .word_groups[self.selected_group_index]
                     .clone();
 
-                update_group(group, connection);
-                state.word_groups[self.selected_group_index] = group.clone();
+                update_group(&mut group, connection);
+                state.word_groups[self.selected_group_index] = group;
             }
             SelectGroup(i) => {
                 self.selected_group_index = i;
@@ -316,7 +313,7 @@ impl DictionaryState {
     fn save_word(&mut self, i: usize) {
         let state = &mut self.state.lock().unwrap();
         let connection = &state.connection;
-        let word = &mut state.dictionary.get(i).unwrap().clone();
+        let word = &mut state.dictionary[i].clone();
 
         update_word(word, connection);
         state.dictionary[i] = word.clone();

src/import.rs

@@ -517,8 +517,7 @@ impl ImportState {
             .iter()
             .map(|name| (name.clone(), Vec::<usize>::with_capacity(1)))
             .collect::<Vec<_>>();
-        for key in group.mapping.keys() {
-            let endpoint = group.mapping.get(key).unwrap();
+        for (key, endpoint) in &group.mapping {
             let property_index = group.fields.iter().position(|f| f == key).unwrap();
             let group_index = result
                 .iter()
@@ -538,7 +537,7 @@ impl ImportState {
     ) -> String {
         let mut working_words = Vec::with_capacity(indices.len());
         for index in indices {
-            let str = properties.get(*index).unwrap();
+            let str = &properties[*index];
             if skip_empty && str.is_empty() {
                 continue;
             }

src/lang.rs

@@ -360,7 +360,7 @@ impl DeckData {
         let last_list: Vec<_> = settings
             .get_word_list(&state_locked)
             .iter()
-            .map(|w| state_locked.dictionary.get(*w).unwrap())
+            .map(|w| &state_locked.dictionary[*w])
             .cloned()
             .collect();
         let word_ids = last_list.iter().map(|l| l.id).collect::<Vec<Id>>();

src/repetitions.rs

@@ -581,7 +581,7 @@ impl RepetitionsState {
         let words = &state.dictionary;
         let stats = &mut indices
             .map(|i| {
-                let word = words.get(i).unwrap();
+                let word = &words[i];
                 CardStatistics {
                     id: 0.into(),
                     word_id: word.id,