Missing functions related to transaction (stock, rent item, return item, ....) about video-store-manager HOT 2 CLOSED

The transaction object is what you need to link Account, Item, and the borrowing state together.

class Transaction {
     Account account;
     Item item;
     boolean returned = false;

     void resolve() => returned = true;
     // Something for setting returned to false here
     // or just change it to setReturned(bool state) for simplicity.
}

If you want to perform a rent action, it would be best served on an Account object. Think of it like this:

if (PersonA.canRent(book1)) // Only check if this account can rent the given item
    PersonA.rent(book1);    // Create a transaction and call ItemManager.decreaseStock(book1)

Which is a valid case for using the rent() method on the Account without the much-needed confusion. For handling the decreasement of items, just call ItemManager.decreaseStock(book1), which by default decreases the item's stock by 1.

NOTE: You can also create an overloaded function:

void decreaseStock(Item item, int amount);

to decrease the stock by any amount of your choice.

Those are just a few basic ideas you'll have to keep in mind. Let me know if you need more clarifications on this topic, I'll be happy to help.

from video-store-manager.

@vhpx I have some confusions:

• Where can we put the method that perform renting item and returning item? In Account class or Transaction class?
  If in Account class, we will check if that item is possible to be rented or not then decrease numCopy and add to current rental list. After that, we will create the transaction.
  If in Transaction class, this class is responsible for all the checking and other tasks like decrease/add when Account call rentItem.

• Do we need to have add a list of transaction as attribute of Account class?

from video-store-manager.