优化批量删除项目出现卡顿的问题。

electron/main/item/data.ts

@@ -323,6 +323,34 @@ function del(id: number) {
   }
 }
 
+/**
+ * 批量删除
+ */
+function batchDel(idList: Array<number>) {
+  // 批量查询
+  let itemList = selectByIdList(true, idList);
+  // 参数
+  let params = itemList.map((item) => item.id).join(",");
+  // SQL
+  let sql = `DELETE FROM ${tableName} WHERE id in (?)`;
+  // 运行
+  let res = db.prepare(sql).run(params).changes > 0;
+  if (res) {
+    // 提取分类ID
+    let classificationIdList = new Set<number>();
+    itemList.forEach((item) => {
+      classificationIdList.add(item.classificationId);
+    });
+    // 更新序号
+    classificationIdList.forEach((classificationId) => {
+      reorder(classificationId);
+    });
+    return true;
+  } else {
+    return false;
+  }
+}
+
 /**
  * 删除
  * @param classificationId
@@ -419,6 +447,7 @@ export {
   batchAdd,
   update,
   del,
+  batchDel,
   selectById,
   selectByIdList,
   deleteByClassificationId,

electron/main/item/ipcEvent.ts

@@ -28,7 +28,15 @@ import {
   getStartMenuItemList,
   getSystemItemList,
 } from "./commons";
-import { add, del, list, selectById, update, updateOrder } from "./data";
+import {
+  add,
+  batchDel,
+  del,
+  list,
+  selectById,
+  update,
+  updateOrder,
+} from "./data";
 import { Item } from "../../../types/item";
 import { getFileExtname, isAbsolutePath } from "../../../commons/utils/common";
 import {
@@ -579,12 +587,10 @@ export default function () {
                 [global.language.ok, global.language.cancel]
               );
               if (res === 0) {
-                for (const id of batchSelectedIdList) {
-                  // 删除数据
-                  del(id);
-                  // 快捷键
-                  setShortcutKey();
-                }
+                // 批量删除
+                batchDel(batchSelectedIdList);
+                // 快捷键
+                setShortcutKey();
                 // 通知前端删除数据
                 sendToWebContent(
                   "mainWindow",