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This article describes how to enhance the user model based on an existing user context. You will add user Identity information to the user context and adjust the user information API to include this information in the response.

Create a domain object

  1. On the bounded context page, click user context.

  2. On the technical modeling page for the user context, create a new domain object. For details, see Create a domain object.

    Use the following information to configure the Identity object:

    • Basic Information

      Parameter

      Example

      object name

      Identity

      code

      Identity

      object type

      value object (An identity document does not have an independent lifecycle or separate behaviors. It is a collection of attributes for the User entity, so it is defined as a value object.)

    • object attribute

      Parameter

      Example

      field name

      ID, User ID, Document Type, Document Number, Expiration Date

      code

      id, userId, cardType, cardId, expireDate

      data type

      Long, String, Integer, String, Date

    • object behavior

      Parameter

      Example

      behavior name

      List user identity documents

      behavior code

      listIdentityCard

      behavior description

      Retrieves a list of identity documents for a user based on the user ID.

      input parameter

      • Parameter Name: User ID

      • code: userId

      • Parameter Type: String

      • required: Required

      output parameter

      • Parameter Type: collection type > List > value object > Identity

      • Description: Identity

      The preceding table details the object behavior for the new Identity object.

  3. After creating a domain object, open the domain model designer to view and edit the domain object relationship diagram, for example, by drawing a relationship line to associate the User entity with the Identity value object. For more information, see Use the domain model designer. After creating the Identity object, in the domain object relationship configuration panel, set the current object to User (User), the target object to Identity (Identity), and the relationship type to 1:0..*. This indicates that one user can be associated with zero or more identity documents.

Edit the application service

After adding the Identity information, follow these steps to ensure it is included when you retrieve user information.

  1. Create a Data Transfer Object (DTO): On the technical modeling page of the user context, navigate to the Data Transfer Object (DTO) page and create a new DTO. For detailed instructions, see Create and manage Data Transfer Objects (DTOs).

    Use the following information to configure the new DTO:

    Parameter

    Example

    Basic information

    • object name: User Identity DTO

    • code: UserIdentityDTO

    Fields

    • field name: ID, Document Type, Document Number, Expiration Date

    • code: id, cardType, cardId, expireDate

    • data type: Long, Integer, String, Date

  2. Modify the user basic information DTO: In the user basic information DTO, add a new field for Identity information. Configure its data type as: collection type > List > DTO > UserIdentityDTO. For detailed instructions, see Create and manage Data Transfer Objects (DTOs).