use single database accross chats -> no storage leaks

bot/commands/list/list.py

@@ -5,10 +5,7 @@ from telegram import InlineKeyboardButton, InlineKeyboardMarkup
 
 from .models import ListModel, set_db, db
 
-MEDIA_DIR = Path(os.getenv("MEDIA_DIR"))
-DB_DIR = MEDIA_DIR / "lists_db"
-DB_DIR.mkdir(parents=True, exist_ok=True)
-
+PERSISTENCE_DIR = Path(os.getenv("PERSISTENCE_DIR"))
 
 NAME, NEW, ACTION, ITEMADD, ITEMREMOVE, ITEMTOGGLE = range(6)
 
@@ -19,9 +16,11 @@ class ListHandler(BaseHandler):
     """Create and edit lists"""
 
     def __init__(self, entry_string, models):
-        self.journal_models = models # not needed here
+        del models # not needed here, but part of the template
         self.entry_string = entry_string
 
+        set_db(PERSISTENCE_DIR / "lists.sqlite")
+
         self.list_overview_keyboard = [
             [InlineKeyboardButton("Add item", callback_data="add")],
             [InlineKeyboardButton("Toggle item", callback_data="toggle")],
@@ -58,10 +57,9 @@ class ListHandler(BaseHandler):
 
     async def entry_point(self, update, context) -> None:
         await super().entry_point(update, context)
-        set_db(DB_DIR / f"chat_{update.message.chat_id}.db")
         with db:
-            lists = ListModel.select()
-        keyboard = [[InlineKeyboardButton(k.name, callback_data=f"list-{k.name}")] for k in lists] + \
+            lists = ListModel.select().where(ListModel.chat_id == update.effective_chat.id)
+        keyboard = [[InlineKeyboardButton(k.name, callback_data=f"list-{k.id}")] for k in lists] + \
             [[InlineKeyboardButton("New list", callback_data="new")]]
 
         reply_markup = InlineKeyboardMarkup(keyboard)
@@ -72,13 +70,13 @@ class ListHandler(BaseHandler):
     async def choose_list(self, update, context: CallbackContext) -> None:
         query = update.callback_query
         data = query.data
-        name = data.replace("list-","")
+        id = data.replace("list-","")
         await query.answer()
-        context.user_data["current_list"] = ListModel.get(name = name)
+        context.user_data["current_list"] = ListModel.get(id = id)
 
         reply_markup = InlineKeyboardMarkup(self.list_overview_keyboard)
 
-        await query.edit_message_text("Very well. For " + name + " the following actions are available:", reply_markup=reply_markup)
+        await query.edit_message_text(f"Using {context.user_data['current_list'].name}. Available actions:", reply_markup=reply_markup)
         return ACTION
 
 
@@ -88,7 +86,7 @@ class ListHandler(BaseHandler):
 
         reply_markup = InlineKeyboardMarkup(self.list_overview_keyboard)
 
-        await query.edit_message_text(f"Very well. For {context.user_data['current_list'].name} the following actions are available:", reply_markup=reply_markup)
+        await query.edit_message_text(f"Using {context.user_data['current_list'].name}. Available actions:", reply_markup=reply_markup)
         return ACTION
 
 
@@ -103,7 +101,7 @@ class ListHandler(BaseHandler):
         name = update.message.text
         try:
             with db:
-                context.user_data["current_list"] = ListModel.create(name = name)
+                context.user_data["current_list"] = ListModel.create(name = name, chat_id=update.effective_chat.id)
             keyboard = [[InlineKeyboardButton("Add an item", callback_data="add"), InlineKeyboardButton("To the menu!", callback_data="overview")]]
             reply_markup = InlineKeyboardMarkup(keyboard)
             await update.message.reply_text("Thanks. List " + name + " was successfully created.", reply_markup=reply_markup)

bot/commands/list/models.py

@@ -8,6 +8,7 @@ class BaseModel(Model):
 
 class ListModel(BaseModel):
     name = CharField(default="")
+    chat_id = IntegerField()
 
     @property
     def content(self) -> dict:
@@ -45,22 +46,6 @@ class ListEntryModel(BaseModel):
     done = BooleanField(default=None, null=True)
 
 
-# class ListModel(BaseModel):
-#     name = CharField(unique=True)
-#     content = TextField(default="") # unlimited length, use to serialise list into
-
-#     @property
-#     def content_list(self):
-#         return json.loads(self.content or '[]')
-    
-#     @content_list.setter
-#     def content_list(self, list_content):
-#         self.content = json.dumps(list_content)
-#         with db:
-#             self.save()
-
-
-
 def set_db(db_path):
     db.initialize(SqliteDatabase(db_path))
     with db: