[Change Request To #8103] Add PageableAdvancedDto As Response Wrapper

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Description of a Change Request

The /select endpoint in our system is being updated to return a PageableAdvancedDto<TableRowsDto> instead of a plain TableRowsDto. This change includes adding the total number of elements in the table, calculating and returning pagination metadata (current page, total pages, etc.), and wrapping the selected portion of data into a TableRowsDto and then into a paginated response.

Reason for Change

The WebUI team has requested the implementation of proper pagination. The frontend requires pagination metadata to correctly display navigable tables, which will improve performance and user experience. This change is a direct response to this requirement.

Acceptance Criteria

To ensure that this change is implemented correctly, the following acceptance criteria must be met:

  • The /select endpoint returns a PageableAdvancedDto<TableRowsDto>
  • The PageableAdvancedDto must contain:
    • List of TableRowsDto (containing the portion of selected data)
    • totalElements
    • currentPage
    • totalPages
    • Navigation flags: hasPrevious, hasNext, first, last
  • The pagination logic is based on provided limit and offset parameters

Impact of Change

This change affects the controller and repository logic for selecting table data. It improves compatibility with the UI by adding pagination metadata. The impact of this change is significant, as it will enable the frontend to display navigable tables with proper pagination, enhancing the overall user experience.

Implementation Details

To implement this change, the following steps will be taken:

  1. Update the /select endpoint to return a PageableAdvancedDto<TableRowsDto> instead of a plain TableRowsDto.
  2. Add the total number of elements in the table to the response.
  3. Calculate and return pagination metadata (current page, total pages, etc.).
  4. Wrap the selected portion of data into a TableRowsDto and then into a paginated response.
  5. Update the controller and repository logic to handle the new pagination metadata.

Benefits of Change

The benefits of this change are numerous:

  • Improved user experience: With proper pagination, users can navigate through large datasets with ease.
  • Enhanced performance: By limiting the amount of data returned, the system can improve performance and reduce the load on the database.
  • Better compatibility with UI: The frontend can now correctly display navigable tables with pagination metadata, improving overall compatibility.

Testing and Validation

To ensure that this change is implemented correctly, thorough testing and validation will be performed. This will include:

  • Unit testing: Individual components will be tested to ensure that they function correctly.
  • Integration testing: The updated system will be tested as a whole to ensure that all components work together seamlessly.
  • User acceptance testing: Real users will be involved in testing the system to ensure that it meets their needs and expectations.

Conclusion

In conclusion, the change to add PageableAdvancedDto as a response wrapper is a significant improvement to the system. It addresses the requirement for proper pagination, enhances user experience, and improves performance. With thorough testing and validation, this change will ensure that the system meets the needs of both the frontend and backend components.

Future Development

As the system continues to evolve, future development will focus on further improving the user experience and performance. This may include:

  • Implementing additional pagination features, such as sorting and filtering.
  • Enhancing the UI to provide a more intuitive and user-friendly experience.
  • Optimizing the system for large-scale deployments and high-traffic scenarios.

Frequently Asked Questions

In this article, we will address some of the most frequently asked questions related to the change request to add PageableAdvancedDto as a response wrapper.

Q: What is the purpose of adding PageableAdvancedDto as a response wrapper?

A: The purpose of adding PageableAdvancedDto as a response wrapper is to provide pagination metadata to the frontend, enabling it to display navigable tables with proper pagination. This improves user experience and enhances performance.

Q: How does PageableAdvancedDto differ from a plain TableRowsDto?

A: PageableAdvancedDto differs from a plain TableRowsDto in that it includes additional metadata, such as:

  • totalElements: The total number of elements in the table.
  • currentPage: The current page number.
  • totalPages: The total number of pages.
  • hasPrevious, hasNext, first, last: Navigation flags indicating whether there are previous, next, first, or last pages.

Q: How will the pagination logic be affected by this change?

A: The pagination logic will be based on the provided limit and offset parameters. This means that the system will return a paginated response based on the specified limit and offset.

Q: What are the benefits of this change?

A: The benefits of this change include:

  • Improved user experience: With proper pagination, users can navigate through large datasets with ease.
  • Enhanced performance: By limiting the amount of data returned, the system can improve performance and reduce the load on the database.
  • Better compatibility with UI: The frontend can now correctly display navigable tables with pagination metadata, improving overall compatibility.

Q: How will this change affect the controller and repository logic?

A: This change will affect the controller and repository logic for selecting table data. The controller will need to update the response to include the pagination metadata, and the repository will need to handle the new pagination logic.

Q: What testing and validation will be performed to ensure this change is implemented correctly?

A: Thorough testing and validation will be performed to ensure that this change is implemented correctly. This will include:

  • Unit testing: Individual components will be tested to ensure that they function correctly.
  • Integration testing: The updated system will be tested as a whole to ensure that all components work together seamlessly.
  • User acceptance testing: Real users will be involved in testing the system to ensure that it meets their needs and expectations.

Q: What are the next steps after implementing this change?

A: After implementing this change, the next steps will include:

  • Reviewing and refining the system to ensure that it meets the requirements and expectations.
  • Continuously monitoring and improving the system to ensure that it remains a valuable and effective tool for users.
  • Exploring additional features and enhancements to further improve the user experience and performance.

Q: How will this change impact the overall architecture of the system?

A: This change will have a positive impact on the overall architecture of the system. It will enable the system to handle large datasets more efficiently, improve user experience, and enhance performance.

Q: What are the potential risks and challenges associated with this change?

A: The potential risks and challenges associated with this change include:

  • Complexity: The change may introduce additional complexity to the system, which can be challenging to manage.
  • Performance: The change may impact performance, especially if not implemented correctly.
  • Compatibility: The change may require updates to the frontend and backend components, which can be challenging to coordinate.

By understanding these potential risks and challenges, we can take proactive steps to mitigate them and ensure a smooth implementation of this change.