The Best Way to Efficiently Delete All Rows in an ArrayKey in Guidewire

Discover the most efficient method to delete all records from an array entity in Guidewire, with a practical example for managing large data sets effectively.
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The Best Way to Efficiently Delete All Rows in an ArrayKey in Guidewire

Managing large datasets can be a challenge, particularly when it comes to maintaining the relationships between entities in your application. One common scenario developers encounter is needing to delete all records associated with a particular entity, in this case, the Specialties associated with a Contact in a Guidewire application.

In this guide, we will explore a practical solution to a specific problem raised by a developer—how to efficiently remove approximately 10,000 specialty records from a contact's array without causing timeout issues.

Background: The Challenge

Imagine a scenario where you have a Contact entity that can have many associated Specialties. This relationship follows a one-to-many design: one contact can have many specialties. The developer in question needed to implement a "Remove All" button in their PCF screen that would clear all associated specialties efficiently.

Current Approach and Its Pitfalls

The developer's existing approach was as follows:

[[See Video to Reveal this Text or Code Snippet]]

While this technique is straightforward, it is neither efficient nor practical when dealing with a large number of records. The process timed out, signaling that it is not an optimal solution for mass deletions.

A More Efficient Solution

To improve upon this issue, we can leverage a different method that interacts directly with the database rather than removing items individually. This way, we can avoid timeouts and achieve better performance.

Step-by-Step Implementation

Define a New Function:
We will create a function that directly deletes the specialties associated with the contact based on the contact ID.

[[See Video to Reveal this Text or Code Snippet]]

Link the Function to the "Remove All" Button:
Now, set this function as the action for the "Remove All" button in your PCF screen. When users click this button, the function will be executed, effectively removing all associated records with one database action.

Benefits of This Approach

Efficiency: This method handles bulk deletions, significantly reducing the load and time required to delete records.

Simplicity: The approach abstracts the deletion logic, making it easier to maintain and understand.

Avoids Timeouts: By performing batch deletions, you reduce the chances of hitting execution time limitations.

Conclusion

Handling a large number of records in any application can be challenging. Implementing a direct deletion strategy using queries and database interactions is a highly effective way to manage these operations without running into performance issues. By utilizing the removeAllSpecialitiesForContact function, you can ensure that your application runs efficiently and increases user satisfaction with fast and responsive UI actions.

With these insights, you are now equipped with the knowledge to efficiently manage deletions within your Guidewire application. Don't hesitate to implement this method in your projects and improve your application's overall performance.

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