Creating Person Entity

We define entities in .Core (domain) project. We can define a Person entity (mapped to PbPersons table in database) to represent a person in phone book as shown below:

public class Person : FullAuditedEntity
    public virtual string Name { get; set; }

    public virtual string Surname { get; set; }

    public virtual string EmailAddress { get; set; }

Person's primary key type is int (as default). It inherits FullAuditedEntity that contains creation, modification and deletion audit properties. It's also soft-delete. When we delete a person, it's not deleted by database but marked as deleted (see entity and data filters documentations for more information). We created PersonConsts in Core.Shared project for MaxLength properties. This is a good practice since we will use same values later.

public class PersonConsts
    public const int MaxNameLength = 32;
    public const int MaxSurnameLength = 32;
    public const int MaxEmailAddressLength = 255;

We add a DbSet property for Person entity to PhoneBookDemoDbContext class defined in .EntityFrameworkCore project.

public class PhoneBookDemoDbContext : AbpZeroDbContext<Tenant, Role, User, PhoneBookDemoDbContext>
    public virtual DbSet<Person> Persons { get; set; }

    //...other entities

    public PhoneBookDemoDbContext()
        : base("Default")


    //...other codes


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