Navigation Property Domain Driven Design
May 27 2013 1 min read by.
Navigation property domain driven design. Domain driven design ddd is the concept that the structure and language of software code class names class methods class variables should match the business domain for example if a software processes loan applications it might have classes such as loanapplication and customer and methods such as acceptoffer and withdraw. If you don t want to introduce a fk property the way with the least db roundtrip costs would probably be to fetch the person s id and then create a dummy person with that key in memory. This article is about why ddd is useful with a database and how you can implement a ddd approach to data persistence classes using ef core. Trong phần lớn trường hợp việc này nhằm mục đích estimate.
This technique is called disconnected domain selection from implementing domain driven design book. This article is about how to apply a domain driven design ddd approach to the classes that the entity framework core ef core library maps to a database. Some will use a repository 12 from inside an aggregate for lookup. Có lẽ chúng ta đã quá quen thuộc với cách tiếp cận truyền thống khi xây dựng một ứng dụng.
The first thing a. Domain driven design là gì. Documentation guide for teams doing domain driven design lire ce contenu en français like print bookmarks. Is this architecture appropriate for a domain driven design.
In this case the person navigation property can be null and the value of the fk property personid doesn t matter. Is it appropriate for poco s to contain navigation properties. On my article creating domain driven design entity classes with entity framework core ardalis commented that your entities all are tightly coupled to ef core. đầu tiền chúng ta đọc spec và tìm hiểu các chức năng sau đó tiến hành chia nhỏ các task.
Model navigation reference by identity doesn t completely prevent navigation through the model. Lets say i have customer as a navigation property inside the order then if i were to add and orderline i have to retract the order resulting in me also retrieving the customer. Active 1 year ago. It really feels wrong for poco s to contain navigation properties in a ddd architecture to me because it doesn t make sense to me to have a navigation property that may or may not be serialized.
Then i did a podcast with bryan hogan where we discussed domain driven design ddd and he goes further than my crud only create read update and delete approach he says that the entity classes.