Stores information about the purchase items that will be delivered and
also the quantity that is already in stock. This view is used to query
which products are going to be delivered and if they are on time or
not.
| Class Variables | id | the id of the purchased item
|
| product_id | the id of the product
|
| purchased | the quantity purchased
|
| received | the quantity already received
|
| stocked | the quantity in stock
|
| expected_receival_date | the date that the item might be deliverd
|
| purchase_date | the date when the item was purchased
|
| branch | the branch where the purchase was done
|