Correct and Incorrect Data

Oct 13, 2025 by wbrum.org 94 views

Introduction

In this article, we will delve into a peculiar issue encountered while working with a custom field called "Locked Field" in a Data Domain (DD) 3.7.77 environment. The field in question has a string value and a boolean status that determines whether it can be changed or not. We will explore the problem, analyze the provided code, and discuss possible solutions to resolve the issue.

Problem Description

The problem arises when updating multiple products in a single request, resulting in the "Locked Field" value switching between null and concrete values on every dataport run. This behavior is inconsistent and unpredictable, making it challenging to diagnose and resolve.

Correct and Incorrect Data

To better understand the issue, let's examine the correct and incorrect data formats. The correct data format is as follows:

On the other hand, the incorrect data format looks like this:

API Endpoint and Transformation Code

The API endpoint responsible for updating the "Locked Field" value is implemented using DD. The transformation code is as follows:

if (!empty($params['transfer']->product)) {
    $getter = 'get' . $params['field'];
    $value = $params['transfer']->product->{$getter}();
    
    $params['logger']->info('Product ID: ' . $params['transfer']->product->getId());
    
} else {
    $value = $params['currentValue'];
    
    $params['logger']->info('Product ID: null');
}

$params['logger']->info($params['field'] . ' [new value]: ' . $params['value']);
$params['logger']->info($params['field'] . ' [current value type]: ' . gettype($value));
if (is_object($value)) {
    $params['logger']->info($params['field'] . ' [current value]: ' . $value->getValue());
    $params['logger']->info($params['field'] . ' [current is loocked]: ' . (int) $value->isLocked());
}

if ($value == null) {
    $value = new \App\Model\DataObject\Data\LockedValue(null, true);
} elseif (is_string($value)) {
    $value = new \App\Model\DataObject\Data\LockedValue($value, true);
}

if ($value->isLocked()) {
    $value->setValue($params['value']);
}

return $value;

Logs and Observations

Analyzing the logs, we notice that the log messages are the same on every run, indicating that the transformation code is not the culprit. However, the version log shows a different message, suggesting that the issue might be related to the DD environment or the API endpoint implementation.

Possible Solutions

Based on the analysis, we can propose the following possible solutions:

DD Environment Configuration: The issue might be related to the DD environment configuration. We recommend checking the DD configuration and ensuring that it is set up correctly.
API Endpoint Implementation: The API endpoint implementation might be causing the issue. We suggest reviewing the API endpoint code and ensuring that it is correctly implemented.
Data Transformation Code: Although the data transformation code appears to be correct, we recommend reviewing it again to ensure that it is not causing the issue.
DD Version: The issue might be related to the DD version. We recommend checking the DD version and ensuring that it is up-to-date.

Conclusion

In conclusion, the strange behavior of the "Locked Field" value switching between null and concrete values on every dataport run is a complex issue that requires a thorough analysis. By examining the correct and incorrect data formats, API endpoint implementation, and transformation code, we can propose possible solutions to resolve the issue. We recommend checking the DD environment configuration, API endpoint implementation, data transformation code, and DD version to identify the root cause of the problem.

Recommendations

Based on the analysis, we recommend the following:

Review DD Environment Configuration: Ensure that the DD environment configuration is set up correctly.
Review API Endpoint Implementation: Ensure that the API endpoint implementation is correctly implemented.
Review Data Transformation Code: Ensure that the data transformation code is correctly implemented.
Check DD Version: Ensure that the DD version is up-to-date.

By following these recommendations, we can identify the root cause of the issue and resolve the strange behavior of the "Locked Field" value.

Introduction

In our previous article, we explored the strange behavior of the "Locked Field" value switching between null and concrete values on every dataport run. We analyzed the correct and incorrect data formats, API endpoint implementation, and transformation code to propose possible solutions to resolve the issue. In this Q&A article, we will address some of the frequently asked questions related to this issue.

Q: What is the root cause of the issue?

A: The root cause of the issue is not immediately apparent and requires a thorough analysis of the DD environment configuration, API endpoint implementation, data transformation code, and DD version.

Q: Is the issue related to the DD environment configuration?

A: Yes, the issue might be related to the DD environment configuration. We recommend checking the DD configuration and ensuring that it is set up correctly.

Q: Is the issue related to the API endpoint implementation?

A: Yes, the issue might be related to the API endpoint implementation. We recommend reviewing the API endpoint code and ensuring that it is correctly implemented.

Q: Is the issue related to the data transformation code?

A: Although the data transformation code appears to be correct, we recommend reviewing it again to ensure that it is not causing the issue.

Q: Is the issue related to the DD version?

A: Yes, the issue might be related to the DD version. We recommend checking the DD version and ensuring that it is up-to-date.

Q: What are the possible solutions to resolve the issue?

A: Based on the analysis, we propose the following possible solutions:

Review DD Environment Configuration: Ensure that the DD environment configuration is set up correctly.
Review API Endpoint Implementation: Ensure that the API endpoint implementation is correctly implemented.
Review Data Transformation Code: Ensure that the data transformation code is correctly implemented.
Check DD Version: Ensure that the DD version is up-to-date.

Q: How can I troubleshoot the issue?

A: To troubleshoot the issue, we recommend the following steps:

Check Logs: Analyze the logs to identify any errors or warnings related to the issue.
Review API Endpoint Code: Review the API endpoint code to ensure that it is correctly implemented.
Review Data Transformation Code: Review the data transformation code to ensure that it is correctly implemented.
Check DD Environment Configuration: Check the DD environment configuration to ensure that it is set up correctly.

Q: Can you provide any additional resources or documentation to help me troubleshoot the issue?

A: Yes, we recommend checking the following resources and documentation to help you troubleshoot the issue:

DD Documentation: Check the DD documentation for any relevant information related to the issue.
API Endpoint Documentation: Check the API endpoint documentation for any relevant information related to the issue.
Data Transformation Code Documentation: Check the data transformation code documentation for any relevant information related to the issue.

Conclusion

In conclusion, the strange behavior of the "Locked Field" value switching between null and concrete values on every dataport run is a complex issue that requires a thorough analysis. By addressing some of the frequently asked questions related to this issue, we hope to provide additional guidance and support to help you troubleshoot and resolve the issue.

Recommendations

Based on the analysis, we recommend the following:

Review DD Environment Configuration: Ensure that the DD environment configuration is set up correctly.
Review API Endpoint Implementation: Ensure that the API endpoint implementation is correctly implemented.
Review Data Transformation Code: Ensure that the data transformation code is correctly implemented.
Check DD Version: Ensure that the DD version is up-to-date.

By following these recommendations and troubleshooting steps, we hope to help you resolve the strange behavior of the "Locked Field" value and ensure that your DD environment is running smoothly.