Migrate to Id type

src/data_provider/words.rs

@@ -1,4 +1,4 @@
-use crate::lang::{WordData, WordGroup};
+use crate::lang::{WordData, WordGroup, INVALID_ID};
 use rusqlite::{Connection, params};
 use std::collections::HashMap;
 
@@ -20,7 +20,7 @@ pub fn add_word(word: &mut WordData, connection: &Connection) {
             0
         });
 
-    word.id = index;
+    word.id = index.into();
 }
 
 pub fn add_words(words: &mut [WordData], connection: &mut Connection) {
@@ -59,12 +59,12 @@ pub fn add_words(words: &mut [WordData], connection: &mut Connection) {
     let start_index = last_index - (count as u32) + 1;
 
     for (index, id) in (start_index..=last_index).enumerate() {
-        words[index].id = id;
+        words[index].id = id.into();
     }
 }
 
 pub fn update_word(word: &mut WordData, connection: &Connection) {
-    if word.id == 0 {
+    if word.id == INVALID_ID {
         add_word(word, connection);
     } else {
         connection
@@ -86,7 +86,7 @@ pub fn update_word(word: &mut WordData, connection: &Connection) {
 }
 
 pub fn delete_word(word: &WordData, connection: &Connection) {
-    if word.id == 0 {
+    if word.id == INVALID_ID {
         return;
     }
     connection
@@ -156,11 +156,11 @@ pub fn add_group(group: &mut WordGroup, connection: &Connection) {
             0
         });
 
-    group.id = index;
+    group.id = index.into();
 }
 
 pub fn update_group(group: &mut WordGroup, connection: &Connection) {
-    if group.id == 0 {
+    if group.id == INVALID_ID {
         add_group(group, connection);
     } else {
         connection
@@ -176,7 +176,7 @@ pub fn update_group(group: &mut WordGroup, connection: &Connection) {
 }
 
 pub fn delete_group(group: &WordGroup, connection: &Connection) {
-    if group.id == 0 {
+    if group.id == INVALID_ID {
         return;
     }
     connection