Add function for adding base data and data reloading.

dsst/dsst_gtk3/handlers/left_column_handlers.py

@@ -0,0 +1,25 @@
+from datetime import datetime
+from dsst_gtk3.gtk_ui import DSSTGtkUi
+from dsst_sql import sql
+from dsst_gtk3 import dialogs, util
+
+
+class LeftColumnHandlers:
+    def __init__(self, app: DSSTGtkUi):
+        self.app = app
+
+    def do_add_season(self, *_):
+        name = dialogs.enter_string_dialog(self.app.ui, 'Name for the new Season')
+        if name:
+            sql.Season.create(game_name=name, number=1)
+            self.app.reload_seasons()
+
+    def do_season_selected(self, *_):
+        self.app.reload_for_season(self.app.get_selected_season_id())
+
+    def do_add_episode(self, *_):
+        season_id = self.app.get_selected_season_id()
+        if not season_id:
+            return
+        episode = dialogs.show_episode_dialog(self.app.ui, 'Create new Episode', season_id)
+        self.app.reload_for_season(season_id)