import export dialog by adding selection of export type

gui/dialogs.py

@@ -1,5 +1,7 @@
+from pathlib import Path
+
 from PySide6.QtWidgets import QDialog, QDialogButtonBox, QVBoxLayout, QLabel, QHBoxLayout, QPushButton, QFileDialog, \
-    QGroupBox, QCheckBox
+    QGroupBox, QCheckBox, QComboBox
 
 
 class ExportKontorDialog(QDialog):
@@ -12,17 +14,26 @@ class ExportKontorDialog(QDialog):
         self.tables = []
         self._table_options = {}
 
+        self.export_options = {"JSON": {"ext": ".json"}, "YAML": {"ext": ".yaml"}, "SQLite": {"ext": ".db"}}
+        self.current_export_type = "JSON"
+
         buttons = (QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
 
         self.buttonBox = QDialogButtonBox(buttons)
         self.buttonBox.accepted.connect(self.accept)
         self.buttonBox.rejected.connect(self.reject)
 
+        layout = QVBoxLayout()
+
         self.label = QLabel()
         self.label.setText("Export DB to data.json")
-        layout = QVBoxLayout()
+
+        self.combo_box = QComboBox()
+        self.combo_box.addItems(["JSON", "YAML", "SQLite"])
+        self.combo_box.currentTextChanged.connect(self.change_export_type)
         file_layout = QHBoxLayout()
         file_layout.addWidget(self.label)
+        file_layout.addWidget(self.combo_box)
         file_button = QPushButton("Select file")
         file_button.clicked.connect(self.select_file)
         file_layout.addWidget(file_button)
@@ -30,6 +41,8 @@ class ExportKontorDialog(QDialog):
 
         for table_name in self.kontor_db.get_table_names():
             check_box = QCheckBox(table_name)
+            check_box.setChecked(True)
+            self.tables.append(table_name)
             self._table_options[table_name] = check_box
             check_box.stateChanged.connect(self.change_selection)
             layout.addWidget(check_box)
@@ -42,11 +55,19 @@ class ExportKontorDialog(QDialog):
             if box.isChecked():
                 self.tables.append(name)
 
+    def change_export_type(self, text):
+        self.current_export_type = text
+        self.label.setText(f"Export DB to data.{self.export_options[text]["ext"]}")
+
     def select_file(self):
         file_dialog = QFileDialog()
         file_dialog.setFileMode(QFileDialog.FileMode.AnyFile)
+        file_dialog.setDefaultSuffix(self.export_options[self.current_export_type]["ext"])
+        file_dialog.setNameFilter(f"*{self.export_options[self.current_export_type]["ext"]}")
         if file_dialog.exec():
             self.file_name = file_dialog.selectedFiles()[0]
+            export_file = Path(self.file_name)
+            self.file_name = export_file.with_suffix(self.export_options[self.current_export_type]["ext"])
             self.label.setText(f"Export DB to {self.file_name}")
 
     def get_tables_to_export(self) -> list:

gui/kontor.py

@@ -114,6 +114,7 @@ class MainWindow(QMainWindow):
         export_dlg = ExportKontorDialog(self, self.kontor_db)
         if export_dlg.exec():
             print(export_dlg.get_tables_to_export())
+            print(f"export DB to {export_dlg.file_name}")
             self.statusBar.showMessage(f"export DB to {export_dlg.file_name}", 3000)
         else:
             self.statusBar.showMessage("Export cancelled", 3000)