Скачать или смотреть How to Refresh Your React Component After CRUD Operations

Learn how to keep your React application in sync with your database by automatically refreshing components after CRUD operations.
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Keeping Your React Component Fresh: Automatically Updating After CRUD Operations

When building a React web application that features CRUD (Create, Read, Update, Delete) operations, one common challenge developers face is ensuring that their components automatically reflect changes made to the underlying database. In this guide, we'll dissect the issue many face while using axios for AJAX calls and provide effective solutions to keep your components up-to-date without requiring a manual page refresh.

The Problem

Imagine you have a Customers component that serves as the heart of your web application, displaying a list of customer records from your database. After performing CRUD operations—like adding or deleting a customer—the data doesn't automatically refresh. Instead, users find themselves stuck with stale information unless they refresh the page manually.

Here's a typical scenario that illustrates this problem:

You create a new customer using a modal.

The customer is successfully added to the database.

Upon closing the modal, the Customers component still displays the old list of customers.

This lack of real-time updating can lead to confusion and frustration, especially for end-users trying to see their recent changes.

The Solution

To achieve the desired functionality where your Customers component updates seamlessly after CRUD operations, you have two primary strategies to choose from:

1. Pass a Callback Function to Modals

You can pass a function from the Customers component that triggers state changes (specifically, re-fetching customer data) to any modal responsible for CRUD operations.

Steps to Implement:

Define a Callback Function: Create a function in the Customers component that will handle updating the state after CRUD operations.

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Pass the Callback to Modals: Pass this function as a prop to your modal components such as AddCustomerModal, EditCustomerModal, and DeleteCustomerModal.

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Invoke the Callback in the Modals: Inside each modal that performs CRUD operations, call the onSuccess prop function once the operation is successful.

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2. Directly Call the Data Fetching Function

Alternatively, you can directly invoke the populateCustomerData() method from within your modal components after completing a CRUD operation.

Steps to Implement:

Pass the Data Fetching Function: Simply pass your populateCustomerData function to the modals.

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Call It After CRUD Operations: Within each modal, make sure to call this method after successfully completing the CRUD action.

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Conclusion

By implementing either of these strategies, you can ensure that your Customers component remains in sync with the current state of your database, automatically reflecting new changes made by users. This not only enhances the user experience but also instills confidence that they are always viewing the most up-to-date information.

Whether you choose to use a callback function or pass the data fetching method directly, both approaches are valid and will help you maintain a responsive and dynamic interface in your React application.

Happy coding!