From f39cb0fcafdd516c6ff42335c616005f2e09f5ee166f124885ec16ecc7695982 Mon Sep 17 00:00:00 2001
From: Marco Gatzen <gatzen.marco@outlook.de>
Date: Fri, 20 Dec 2024 14:11:34 +0100
Subject: [PATCH] notificationbox

---
 Gui/LoginScreen.qml   | 11 +++++++++++
 Gui/Notifications.qml | 11 ++++++++++-
 lib/DB/UserDAO.py     |  7 ++++++-
 lib/DB/UserManager.py |  7 +++++--
 4 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/Gui/LoginScreen.qml b/Gui/LoginScreen.qml
index c292666..ff032b2 100644
--- a/Gui/LoginScreen.qml
+++ b/Gui/LoginScreen.qml
@@ -181,6 +181,10 @@ Item
             onAccepted: config.getRecoveryKey(getRecoveryDialog.currentFile, recpass)
             onRejected: quit()
         }
+        Notifications
+        {
+            id: oschkar
+        }
     }
 
     Component.onCompleted:
@@ -188,6 +192,7 @@ Item
         loggedin_user.loginOkay.connect(loggedin)
         config.invalidEncryptionKey.connect(getEncryptionKey)
         config.checkEncryptionKey()
+        loggedin_user.noDbConnection.connect(dbConnectionFailed)
     }
 
     function loggedin()
@@ -199,4 +204,10 @@ Item
     {
         recoveryPaswordDialog.open()
     }
+    function dbConnectionFailed(msg)
+    {
+        oschkar.notificationBox.informativeText = msg
+        oschkar.notificationBox.text = "Verbindung zum Datenbankserver verloren"
+        oschkar.notificationBox.open()
+    }
 }
diff --git a/Gui/Notifications.qml b/Gui/Notifications.qml
index 0c0bbd6..875d059 100644
--- a/Gui/Notifications.qml
+++ b/Gui/Notifications.qml
@@ -1,5 +1,14 @@
 import QtQuick
+import QtQuick.Dialogs
 
-Item {
+Item
+{
+    id: oschkar
+    property alias notificationBox: notificationDialog
+    MessageDialog
+    {
+        id: notificationDialog
+        buttons: MessageDialog.Ok
+    }
 
 }
diff --git a/lib/DB/UserDAO.py b/lib/DB/UserDAO.py
index af33556..aedb459 100644
--- a/lib/DB/UserDAO.py
+++ b/lib/DB/UserDAO.py
@@ -2,11 +2,14 @@
 from .DbManager import DbManager
 from ..PyqcrmFlags import PyqcrmFlags
 import mariadb
+from PySide6.QtCore import QObject, Signal
 
-class UserDAO:
+class UserDAO(QObject):
+    noDbConnection = Signal(str)
     __cursor = None
     def __init__(self):
         #print(f"*** File: {__file__}, init()")
+        super().__init__()
         self.__con = DbManager().getConnection()
         if self.__con:
             self.__cur = self.__con.cursor()
@@ -22,6 +25,7 @@ class UserDAO:
             print(f"Error: {e}")
             print(e.errno)
             user_created = False
+            self.noDbConnection.emit(str(e))
         finally:
             return user_created
 
@@ -34,6 +38,7 @@ class UserDAO:
                 return None
         except mariadb.Error as e:
             print(str(e))
+            self.noDbConnection.emit(str(e))
 
 
 
diff --git a/lib/DB/UserManager.py b/lib/DB/UserManager.py
index b7fa8f5..83da450 100644
--- a/lib/DB/UserManager.py
+++ b/lib/DB/UserManager.py
@@ -9,10 +9,13 @@ from PySide6.QtCore import Slot, QObject, Signal, QUrl
 class UserManager(QObject):
 
     loginOkay = Signal()
+    noDbConnection = Signal(str)
 
     def __init__(self, user_config = None, role = None):
         super().__init__()
         self.__con = DbManager().getConnection()
+        self.__user_dao = UserDAO()
+        self.__user_dao.noDbConnection.connect(self.noDbConnection)
         if self.__con:
             self.__cur = self.__con.cursor()
             if user_config and role:
@@ -25,7 +28,7 @@ class UserManager(QObject):
 
     def createUser(self):
         self.__hashPassword()
-        user_created = UserDAO().createUser(self.__username, self.__password, self.__info, self.__role)
+        user_created = self.__user_dao.createUser(self.__username, self.__password, self.__info, self.__role)
 
         return user_created
 
@@ -54,7 +57,7 @@ class UserManager(QObject):
 
     @Slot(str, str)
     def login(self, username, password):
-        user = UserDAO().getUser(username)
+        user = self.__user_dao.getUser(username)
         if user:
             self.__checkPassword(password, user[2])
         else: