implement general data tab view

gui/table_model.py

@@ -12,24 +12,22 @@ class KontorTableModel(QAbstractTableModel):
         super().__init__()
         self._main_window = model_config.main_window
         self._config = model_config
-        self._data = None
+        self._data = []
 
     def refresh(self):
-        data = []
-        cursor = self._config.db_conn.cursor()
-        cursor.execute(self._config.get_statement())
-        rows = cursor.fetchall()
-        # print(len(rows))
-        if len(rows) > 0:
+        data = self._config.get_data()
+        count = 0
+        # print(data)
+        if data is not None:
             self.beginResetModel()
-            for row in rows:
-                data.append(list(row))
+            self._data.clear()
             self._data = data
             self.endResetModel()
-        else:
-            self._data = None
+            count = len(data)
+            # print(data)
+            # print(self._data)
         self.layoutChanged.emit()
-        self._main_window.statusBar.showMessage(f"{len(rows)} Einträge geladen", 3000)
+        self._main_window.statusBar.showMessage(f"{count} Einträge geladen", 3000)
 
     def rowCount(self, parent=QModelIndex()):
         # The length of the outer list.
@@ -39,7 +37,7 @@ class KontorTableModel(QAbstractTableModel):
 
     def headerData(self, col, orientation, role=Qt.ItemDataRole.DisplayRole):
         if orientation == Qt.Orientation.Horizontal and role == Qt.ItemDataRole.DisplayRole:
-            return self._config.header[col]['column']
+            return self._config.header[col]['label']
         if orientation == Qt.Orientation.Vertical and role == Qt.ItemDataRole.DisplayRole:
             return str(col+1)