We will update our blogging system models to accommodate the Required field validation in the following entities:
- Data model entities: Address, Blog, Category, Comment, Person, Post, Tag, TagPost, and User
- View model entities: RegistrationViewModel and LoginViewModel
The preceding listed implementation is performed and available at the following Git repository commit—https://goo.gl/4jyHa2.
We have introduced a couple of view models in this commit which will be used in the authentication mechanism. We have looked, exhaustively, at Required field validations; let's explore the EmailAddress validation in the next section.