Lesson 29 - E-shop in ASP.NET Core MVC - Order List
In the previous lesson, E-shop in ASP.NET Core MVC - Tree Menu Editor, we implemented a JavaScript tree menu editor for product categories. In the following two ASP.NET Core tutorials, we're going to work on an order list and changing the order state. Today we're mainly going to prepare necessary methods in the business layer. But let's start with a small modification in the data layer.
EOrder class
The basic information about each order is stored in the EOrder
class structure. What we don't have here is the final price of the completed
order. Although this price can be calculated because we have both accounting
settings and product ids and their status (including price) at the time of
purchase, I would not consider storing the total price as an unnecessary data.
It's information that we're going to need repeatedly in various operations and
it's unnecessary to compute it over and over again.
So let's add a nullable property of the decimal type called
FinalPrice to the EOrder class. Of course, we need to
perform a migration to update the database.
Modifying the OrderManager
We'll assign the value to the new property at the time of completing the
order, ideally in the CompleteOrder() method in
OrderManager. After adding the selected delivery method, we can
calculate the total price using the GetOrderSummary() method and
save it to the current order.
... order.FinalPrice = GetOrderSummary().Price; ...
The upcoming edits will also be in the business layer.
...End of the preview...
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Article description
Requested article covers this content:
In this ASP.NET tutorial, we'll prepare a page for administrators to see completed orders and manage their status (we'll prepare the business layer).
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