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vladimir-puzic / pos_software

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Transaction Management > Create Transaction > Create Custom Transaction - transaction creation fails after selecting item amount #6

Closed vladimir-puzic closed 2 weeks ago

vladimir-puzic commented 3 weeks ago

Terminal output and error message:

Transaction ID: 20240524-123456 Customer ID: 123456 Employee ID: vp123456 Total: 5.0 Transaction 20240524-123456 created Select item: Milk Amount: 3 20240524-123456 (123456, 'Milk', 'Dairy', 1.0, 2.0) Milk 3 Traceback (most recent call last): File "e:\PROJECTS\pos_software\database_session.py", line 944, in option.execute() File "e:\PROJECTS\pos_software\database_session.py", line 332, in execute session.db_itemize_transaction(transaction_id, item_data[0], item_to_add, amount_to_add) File "e:\PROJECTS\pos_software\database_session.py", line 132, in db_itemize_transaction self.cursor.execute(f"INSERT INTO Itemizer VALUES ('{transaction_id}', '{plu}', '{item_to_add}', '{amount}')") sqlite3.OperationalError: near "Milk": syntax error

vladimir-puzic commented 2 weeks ago

Issue fixed in commit db2e39b

Transaction Management > Create Transaction > Create Custom Transaction

The error occurred when executing the db_itemize_transaction function. With in the CreateTransactionCustom class the item name was used as for lookup after input. The input was used to obtain the PLU for that particular item and was supposed to be forwarded to the db_itemize_transaction function in the following format: db_itemize_transaction(transaction_id: str, plu, item_to_add: str, amount) db_itemize_transaction(20241706-123456, 644455, 'Milk', 5)

Due to a bug with the db_fetch_item_data function, the returned item info was not in the expected format: (644455, 'Milk', 'Dairy', 1.0, 2.5) but was instead returned as a list containing a single tuple: [(644455, 'Milk', 'Dairy', 1.0, 2.5)]

This caused the SQL insert statement to fail.

The issue was fixed by using .fetchone() instead .fetchall() in this case as there is only a single expected result. .fetchone() >> (644455, 'Milk', 'Dairy', 1.0, 2.5) .fetchall() >> [(644455, 'Milk', 'Dairy', 1.0, 2.5)]