add accounting page and fix issue with db selects

src/ez_lan_manager/services/AccountingService.py

@@ -47,6 +47,9 @@ class AccountingService:
                 balance_buffer += transaction.value
         return balance_buffer
 
+    def get_transaction_history(self, user_id: int) -> list[Transaction]:
+        return self._db_service.get_all_transactions_for_user(user_id)
+
     @staticmethod
     def make_euro_string_from_int(cent_int: int) -> str:
         """ Internally, all money values are cents as ints. Only when showing them to the user we generate a string. Prevents float inaccuracy. """

src/ez_lan_manager/services/DatabaseService.py

@@ -63,6 +63,7 @@ class DatabaseService:
     def get_user_by_name(self, user_name: str) -> Optional[User]:
         cursor = self._get_cursor()
         cursor.execute("SELECT * FROM users WHERE user_name=?", (user_name,))
+        self._connection.commit()
         result = cursor.fetchone()
         if not result:
             return
@@ -71,6 +72,7 @@ class DatabaseService:
     def get_user_by_id(self, user_id: int) -> Optional[User]:
         cursor = self._get_cursor()
         cursor.execute("SELECT * FROM users WHERE user_id=?", (user_id,))
+        self._connection.commit()
         result = cursor.fetchone()
         if not result:
             return
@@ -79,6 +81,7 @@ class DatabaseService:
     def get_user_by_mail(self, user_mail: str) -> Optional[User]:
         cursor = self._get_cursor()
         cursor.execute("SELECT * FROM users WHERE user_mail=?", (user_mail.lower(),))
+        self._connection.commit()
         result = cursor.fetchone()
         if not result:
             return
@@ -135,6 +138,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute("SELECT * FROM transactions WHERE user_id=?", (user_id,))
+            self._connection.commit()
             result = cursor.fetchall()
         except mariadb.Error as e:
             logger.error(f"Error getting all transactions for user: {e}")
@@ -167,6 +171,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute("SELECT * FROM news INNER JOIN users ON news.news_author = users.user_id WHERE news_date BETWEEN ? AND ?;", (dt_start, dt_end))
+            self._connection.commit()
         except Exception as e:
             logger.warning(f"Error fetching news: {e}")
             return []
@@ -189,6 +194,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute("SELECT * FROM tickets INNER JOIN users ON tickets.user = users.user_id;", ())
+            self._connection.commit()
         except Exception as e:
             logger.warning(f"Error fetching tickets: {e}")
             return []
@@ -208,6 +214,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute("SELECT * FROM tickets INNER JOIN users ON tickets.user = users.user_id WHERE user_id=?;", (user_id, ))
+            self._connection.commit()
         except Exception as e:
             logger.warning(f"Error fetching ticket for user: {e}")
             return
@@ -273,6 +280,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute("SELECT seats.*, users.* FROM seats LEFT JOIN users ON seats.user = users.user_id;")
+            self._connection.commit()
         except Exception as e:
             logger.warning(f"Error getting seats table: {e}")
             return results
@@ -303,6 +311,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute("SELECT * FROM catering_menu_items;")
+            self._connection.commit()
         except Exception as e:
             logger.warning(f"Error fetching menu items: {e}")
             return results
@@ -323,6 +332,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute("SELECT * FROM catering_menu_items WHERE catering_menu_item_id = ?;", (menu_item_id, ))
+            self._connection.commit()
         except Exception as e:
             logger.warning(f"Error fetching menu items: {e}")
             return
@@ -439,6 +449,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute(query)
+            self._connection.commit()
         except Exception as e:
             logger.warning(f"Error getting orders: {e}")
             return fetched_orders
@@ -467,6 +478,7 @@ class DatabaseService:
                 "WHERE order_id = ?;",
                 (order_id, )
             )
+            self._connection.commit()
         except Exception as e:
             logger.warning(f"Error getting order items: {e}")
             return result
@@ -498,6 +510,7 @@ class DatabaseService:
         cursor = self._get_cursor()
         try:
             cursor.execute("SELECT (picture) FROM user_profile_picture WHERE user_id = ?", (user_id, ))
+            self._connection.commit()
             r = cursor.fetchone()
             if r is None:
                 return