The Problem with the Current Logic

Oct 13, 2025 by talynt.org 6 views

Introduction

In the recent sprint from 25-Feb to 11-Mar 25, we merged PR #5118, which aimed to resolve a critical issue affecting the purse creation process during contract upgrades. However, upon further review, it has come to our attention that the implemented logic still falls short of our expectations. This retrospective issue is created to address the remaining concerns and provide a revised solution to ensure seamless purse creation during contract upgrades.

Background

For those unfamiliar with the context, let's briefly discuss the purse creation process in userland contract entities. The purse is a crucial component that enables users to manage their funds and interact with the contract. During contract upgrades, it is essential to preserve the existing purse to maintain continuity and prevent any disruptions to the user experience.

The Issue

The original implementation of PR #5118 aimed to resolve the issue of the main purse not carrying forward from a previous version. However, upon further investigation, it became apparent that the logic was not entirely accurate. The current implementation relies on a specific condition to determine whether the purse should be created or updated. Unfortunately, this condition is not robust enough to handle all possible scenarios, leading to inconsistent results.

The Problem with the Current Logic

The current logic for purse creation during contract upgrades is based on a simple if-else statement. While this approach may seem straightforward, it lacks the necessary flexibility to accommodate various edge cases. For instance, when the contract is upgraded from a previous version, the purse is not created or updated correctly, resulting in a loss of user funds.

// Current implementation
if (contract.version < 2) {
  // Create a new purse
  purse = new Purse();
} else {
  // Update the existing purse
  purse = contract.purse;
}

Proposed Solution

To address the issue, we propose a revised logic for purse creation during contract upgrades. The new approach will involve a more robust and flexible condition to determine whether the purse should be created or updated.

// Proposed implementation
if (contract.version === 1 && !contract.purse) {
  // Create a new purse
  purse = new Purse();
} else if (contract.version > 1 && contract.purse) {
  // Update the existing purse
  purse = contract.purse;
} else {
  // Handle edge cases
  purse = new Purse();
}

Benefits of the Proposed Solution

The revised logic offers several benefits over the current implementation:

Improved Robustness: The new condition is more comprehensive and can handle various edge cases, ensuring that the purse is created or updated correctly.
Enhanced Flexibility: The proposed solution allows for more flexibility in terms of contract versioning and purse creation, making it easier to adapt to changing requirements.
Better User Experience: By ensuring that the purse is created or updated correctly, users can enjoy a seamless experience when interacting with the contract.

Conclusion

In conclusion, the current logic for purse creation during contract upgrades is not robust enough to handle all possible scenarios. The proposed solution addresses this issue by introducing a more comprehensive and flexible condition to determine whether the purse should be created or updated. By implementing this revised logic, we can ensure that users can enjoy a seamless experience when interacting with the contract.

Recommendations

Based on the proposed solution, we recommend the following:

Implement the revised logic: Update the contract upgrade process to use the proposed logic for purse creation.
Test thoroughly: Conduct extensive testing to ensure that the revised logic works as expected in various scenarios.
Monitor and maintain: Continuously monitor the contract upgrade process and make any necessary adjustments to ensure that the purse creation logic remains robust and flexible.

Q&A: Frequently Asked Questions

Q: What is the current issue with purse creation during contract upgrades? A: The current implementation of purse creation during contract upgrades relies on a specific condition to determine whether the purse should be created or updated. Unfortunately, this condition is not robust enough to handle all possible scenarios, leading to inconsistent results.

Q: What is the proposed solution to address the issue? A: The proposed solution involves a revised logic for purse creation during contract upgrades. The new approach will involve a more robust and flexible condition to determine whether the purse should be created or updated.

Q: How does the proposed solution improve the current logic? A: The proposed solution offers several benefits over the current implementation, including improved robustness, enhanced flexibility, and a better user experience. The revised logic can handle various edge cases and ensures that the purse is created or updated correctly.

Q: What are the benefits of implementing the proposed solution? A: The benefits of implementing the proposed solution include:

Improved Robustness: The new condition is more comprehensive and can handle various edge cases, ensuring that the purse is created or updated correctly.
Enhanced Flexibility: The proposed solution allows for more flexibility in terms of contract versioning and purse creation, making it easier to adapt to changing requirements.
Better User Experience: By ensuring that the purse is created or updated correctly, users can enjoy a seamless experience when interacting with the contract.

Q: How can we ensure that the revised logic works as expected in various scenarios? A: To ensure that the revised logic works as expected, we recommend conducting extensive testing to cover various scenarios, including edge cases. This will help identify any potential issues and ensure that the purse creation process is reliable and efficient.

Q: What are the next steps to implement the proposed solution? A: The next steps to implement the proposed solution include:

Implementing the revised logic: Update the contract upgrade process to use the proposed logic for purse creation.
Testing thoroughly: Conduct extensive testing to ensure that the revised logic works as expected in various scenarios.
Monitoring and maintaining: Continuously monitor the contract upgrade process and make any necessary adjustments to ensure that the purse creation logic remains robust and flexible.

Q: Who should be involved in implementing the proposed solution? A: The following individuals should be involved in implementing the proposed solution:

Development team: The development team should be responsible for implementing the revised logic and conducting testing.
Quality assurance team: The quality assurance team should be responsible for testing the revised logic and ensuring that it meets the required standards.
Project manager: The project manager should be responsible for overseeing the implementation process and ensuring that it is completed on time and within budget.

Q: What are the potential risks associated with implementing the proposed solution? A: The potential risks associated with implementing the proposed solution include:

Technical issues: There is a risk that the revised logic may introduce technical issues, such as bugs or performance problems.
Testing challenges: There is a risk that testing the revised logic may be challenging, particularly if it involves complex scenarios or edge cases.
Timeline and budget: There is a risk that implementing the proposed solution may take longer than expected or exceed the allocated budget.

Conclusion

In conclusion, the proposed solution addresses the issue of inconsistent purse creation during contract upgrades by introducing a more robust and flexible condition to determine whether the purse should be created or updated. By implementing this revised logic, we can ensure that users can enjoy a seamless experience when interacting with the contract.