In this tutorial, you’ll debug a module loadable package that contains one custom module: msgc_Equipment. The module is used to manage the equipment at Professor Marum’s School for Gifted Coders. Users can request to checkout one or more pieces of equipment. The module has 2 custom fields: total and num_available. The total field stores the total number of pieces of equipment the school has. The num_available field stores how many pieces of
equipment are currently available to be checked out. For example, if the number available of a piece of equipment is 100 and you check out 5, the number available will become 95.