refactor kontor-schema by moving classes to seprate modules

python/kontor-gui/gui/table_model.py

@@ -2,6 +2,7 @@ from datetime import datetime
 
 from PySide6.QtCore import QAbstractTableModel, QModelIndex
 from PySide6.QtGui import Qt
+from kontor_schema.database import ColumnEntry
 
 from .model_config import KontorModelConfig
 
@@ -43,7 +44,7 @@ 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]['label']
+            return self._config.header[col][ColumnEntry.COLUMN_LABEL]
         if orientation == Qt.Orientation.Vertical and role == Qt.ItemDataRole.DisplayRole:
             return str(col+1)