Optimized again dictionary page and working import

src/data_provider/words.rs

@@ -1,12 +1,11 @@
 use crate::lang::{WordData, WordGroup};
-use rusqlite::Connection;
+use rusqlite::{params, Connection};
 use std::collections::HashMap;
 
 pub fn add_word(word: &mut WordData, connection: &Connection) {
     let index = connection
         .query_row(
-            "INSERT INTO words (key, value, tags, more, group_id) VALUES (?1, ?2, ?3, ?4, ?5\
-            ) RETURNING id",
+            "INSERT INTO words (key, value, tags, more, group_id) VALUES (?1, ?2, ?3, ?4, ?5) RETURNING id",
             (
                 &word.key,
                 &word.value,
@@ -24,6 +23,40 @@ pub fn add_word(word: &mut WordData, connection: &Connection) {
     word.id = index;
 }
 
+pub fn add_words(words: &mut[WordData], connection: &mut Connection) {
+    let tx = connection.transaction().unwrap();
+    let count = words.len();
+
+    {
+        let mut stmt = tx.prepare(
+            "INSERT INTO words (key, value, tags, more, group_id) VALUES (?1, ?2, ?3, ?4, ?5)",
+        ).unwrap();
+
+
+        for word in words.iter() {
+            stmt.execute(params![word.key, word.value, word.tags, serde_json::to_string(&word.additional).unwrap(), word.group_id]).unwrap();
+        }
+    }
+
+    tx.commit().unwrap();
+
+    let last_index: u32 = connection
+        .query_one(
+            "SELECT seq from sqlite_sequence WHERE name == ?1",
+            ("words".to_string(),),
+            |row| row.get(0),
+        )
+        .unwrap();
+
+    let start_index = last_index - (count as u32) + 1;
+
+    let mut index = 0;
+    for id in start_index..=last_index {
+        words[index].id = id;
+        index += 1;
+    }
+}
+
 pub fn update_word(word: &mut WordData, connection: &Connection) {
     if word.id == 0 {
         add_word(word, &connection);
@@ -126,7 +159,7 @@ pub fn update_group(group: &mut WordGroup, connection: &Connection) {
     } else {
         connection
             .execute(
-                "UPDATE word_group SET name = ?1 WHERE id = ?5",
+                "UPDATE word_group SET name = ?1 WHERE id = ?2",
                 (&group.name, &group.id),
             )
             .unwrap_or_else(|e| {