db/SQLiteClient.py

@@ -58,12 +58,10 @@ def update_user(id: int, name: str, email: str, password: str = None):
 
 
 def delete_user(id: int):
-    query = f"DELETE FROM habit_lists WHERE (SELECT list_id FROM habit_users WHERE user_id = {id}) = id;"
-    query2 = f"DELETE FROM users WHERE id = {id};"
+    query = f"DELETE FROM users WHERE id = {id};"
     conn = con3()
     cursor = conn.cursor()
     cursor.execute(query)
-    cursor.execute(query2)
     conn.commit()
     conn.close()
     return cursor.lastrowid

models/HabitList.py

@@ -1,5 +1,5 @@
 from dataclasses import dataclass
-from datetime import date, datetime
+from datetime import datetime
 
 from models.Habit import Habit
 from models.User import User

models/User.py

@@ -31,6 +31,9 @@ class User(UserMixin):
         update_user(self.id, self.name, self.email, self.password if self.password else None)
 
     def delete(self):
+        habitLists = self.get_habitLists()
+        for habitList in habitLists:
+            habitList.delete(self.id)
         delete_user(self.id)
 
     def get_habitLists(self) -> list: