refactor project by using enums for recurring strings

python/kontor-gui/gui/model_config.py

@@ -1,6 +1,5 @@
 from PySide6.QtWidgets import QHBoxLayout, QCheckBox, QMdiSubWindow
-from kontor_schema import KontorDB
-from kontor_schema.database import ColumnEntry
+from kontor_schema import KontorDB, ColumnEntry
 
 
 class KontorModelConfig:
@@ -30,7 +29,7 @@ class KontorModelConfig:
         # print(self.filter["download"].isChecked())
         for column, filter_info in self.filter.items():
             # print(column, filter_info)
-            if filter_info['widget'].isChecked():
+            if filter_info[ColumnEntry.COLUMN_WIDGET].isChecked():
                 _filters[column] = True
         # print(f"{filter_rule=}")
         # self.log.info("filters -> %s", _filters)
@@ -49,7 +48,7 @@ class KontorModelConfig:
             filter_checkbox = QCheckBox()
             filter_checkbox.setText(filter_info[ColumnEntry.COLUMN_LABEL])
             filter_checkbox.checkStateChanged.connect(self.main_window.refresh)
-            self.filter[column]['widget'] = filter_checkbox
+            self.filter[column][ColumnEntry.COLUMN_WIDGET] = filter_checkbox
             filter_layout.addWidget(filter_checkbox)
         filter_layout.addStretch()
         # self.log.info("get_filter_layout: %s", self.filter)