use db contexts for better stability

bot/commands/journal.py

@@ -51,9 +51,10 @@ class JournalHandler(BaseHandler):
         await query.answer()
         if query.data == "today" or query.data == "yesterday":
             date = datetime.datetime.now().date() if query.data == "today" else datetime.datetime.now().date() - datetime.timedelta(days=1)
-            self.current_model, new = self.models.JournalEntry.get_or_create(
-                date = date
-            )
+            with self.models.db:
+                self.current_model, new = self.models.JournalEntry.get_or_create(
+                    date = date
+                )
             if not new:
                 await query.edit_message_text(text="An entry already exists for this date")
                 return ConversationHandler.END
@@ -69,9 +70,10 @@ class JournalHandler(BaseHandler):
         date = update.message.text
         try:
             date = datetime.datetime.strptime(date, "%d%m%Y").date()
-            self.current_model, new = self.models.JournalEntry.get_or_create(
-                date = date
-            )
+            with self.models.db:
+                self.current_model, new = self.models.JournalEntry.get_or_create(
+                    date = date
+                )
             if not new:
                 await update.message.reply_text("An entry already exists for this date")
                 return ConversationHandler.END