修复NoneType object is not iterable的问题

app/DataBase/micro_msg.py

@@ -40,7 +40,7 @@ class MicroMsg:
 
     def get_contact(self):
         if not self.open_flag:
-            return None
+            return []
         try:
             lock.acquire(True)
             sql = '''SELECT UserName, Alias, Type, Remark, NickName, PYInitial, RemarkPYInitial, ContactHeadImgUrl.smallHeadImgUrl, ContactHeadImgUrl.bigHeadImgUrl,ExTraBuf,COALESCE(ContactLabel.LabelName, 'None') AS labelName

app/ui/chat/chat_window.py

@@ -1,7 +1,9 @@
+import shutil
+
 from PyQt5.QtCore import QThread, pyqtSignal
 from PyQt5.QtWidgets import QWidget, QMessageBox, QAction, QLineEdit
 
-from app.DataBase import micro_msg_db, misc_db, msg_db
+from app.DataBase import micro_msg_db, misc_db, msg_db, close_db
 from app.components import ContactQListWidgetItem, ScrollBar
 from app.person import Contact
 from app.ui.Icon import Icon
@@ -136,6 +138,15 @@ class ShowContactThread(QThread):
 
     def run(self) -> None:
         contact_info_lists = micro_msg_db.get_contact()
+        if not contact_info_lists:
+            self.load_finish_signal.emit(True)
+            # QMessageBox.critical(None, "错误", "数据库错误，请重启电脑后重试")
+            close_db()
+            try:
+                shutil.rmtree('./app/Database/Msg')
+            except:
+                pass
+            return
         for contact_info_list in contact_info_lists:
             # UserName, Alias,Type,Remark,NickName,PYInitial,RemarkPYInitial,ContactHeadImgUrl.smallHeadImgUrl,ContactHeadImgUrl,bigHeadImgUrl
             contact_info = {

app/ui/contact/contact_window.py

@@ -3,7 +3,7 @@ from typing import List
 from PyQt5.QtCore import QThread, pyqtSignal
 from PyQt5.QtWidgets import QWidget, QMessageBox, QAction, QLineEdit, QLabel
 
-from app.DataBase import micro_msg_db, misc_db
+from app.DataBase import micro_msg_db, misc_db, close_db
 from app.components import ContactQListWidgetItem, ScrollBar
 from app.person import Contact
 from app.ui.Icon import Icon
@@ -152,6 +152,16 @@ class ShowContactThread(QThread):
 
     def run(self) -> None:
         contact_info_lists = micro_msg_db.get_contact()
+        if not contact_info_lists:
+            self.load_finish_signal.emit(True)
+            # QMessageBox.critical(None, "错误", "数据库错误，请重启电脑后重试")
+            close_db()
+            import shutil
+            try:
+                shutil.rmtree('./app/Database/Msg')
+            except:
+                pass
+            return
         for contact_info_list in contact_info_lists:
             # UserName, Alias,Type,Remark,NickName,PYInitial,RemarkPYInitial,ContactHeadImgUrl.smallHeadImgUrl,ContactHeadImgUrl,bigHeadImgUrl,ExtraBuf
             detail = decodeExtraBuf(contact_info_list[9])

app/ui/mainview.py

@@ -332,11 +332,14 @@ class MainWinController(QMainWindow, mainwindow.Ui_MainWindow, QCursorGif):
         try:
             img_bytes = misc_db.get_avatar_buffer(wxid)
         except:
-            close_db()
             logger.error(f'数据库错误:\n{traceback.format_exc()}')
             QMessageBox.critical(self, "数据库错误", "请重启微信后重试")
+            close_db()
             import shutil
-            shutil.rmtree('./app/Database/Msg')
+            try:
+                shutil.rmtree('./app/Database/Msg')
+            except:
+                pass
             return
         if not img_bytes:
             return

doc/获取个人文件/使用说明.md

@@ -1,16 +0,0 @@
-教程参考
-[导出聊天记录](https://blog.csdn.net/m0_59452630/article/details/124222235?spm=1001.2014.3001.5501 "一文教会你导出微信聊天记录")
-
-对于模拟器中信息提取，如果使用自带的Amaze复制到共享文件夹出现错误，无法导入可以使用MT管理器
-
-![image-20231113143254986](..\images\MT)
-
-MT管理器打开界面如下图所示，右边打开微信文件存储位置，找到MicroMsg，左边打开共享文件位置，可以通过右边的电脑图案查看路径。
-
-如图，长按MicroMsg文件夹，弹出弹窗，点击复制->确认。
-
-![image-20231111001821854](..\images\cv-opration)
-
-开始复制，稍等一会即可完成复制。
-
-![image-20231111001132681](..\images\cv_process)