Day 7 - Python Flask AJAX CRUD (Create, Read, Update, Delete)

In our journey of building a Role-Based Access Control (RBAC) application with Python Flask, we've adopted a top-down modular approach to ensure scalability and maintainability. Today, we delve into implementing AJAX CRUD operations, focusing on the `modules` table in our RBAC schema. Here's how we'll tackle it:

1. Introduction to RBAC Application Modules
   
   Our RBAC application comprises distinct modules for User Management, Access Control, Dashboard, and Settings. This modular architecture ensures clear separation of concerns and facilitates easier maintenance and expansion.

2. Creating ModuleController and Blueprint Registration

   To manage CRUD operations for the `modules` table, we'll create a dedicated controller named `ModuleController` and register its blueprint in `route.py`. This sets the stage for efficient data manipulation within the application.

3. Adding Records to Modules Table

   We kickstart our AJAX CRUD journey by enabling the addition of records to the `modules` table:
   - Integrate a modal dialog and button to facilitate user interaction.
   - Utilize jQuery and JavaScript to dynamically load page content within the modal dialog.
   - Implement form validation logic to ensure data integrity.
   - Leverage Flask's `jsonify` function and handle validation errors gracefully using custom classes for uniqueness.

4. Displaying All Records in Modules Table

   We empower our application to showcase its data with finesse:
   - Craft a function to fetch and display all records from the `modules` table.
   - Utilize dictionaries and Bootstrap tables for structured and elegant data presentation.

5. Editing and Updating Records (AJAX)

   We empower users with the ability to edit and update records seamlessly:
   - Strengthen data integrity by validating form inputs.
   - Submit form data asynchronously using jQuery's powerful `.ajax()` method for a smooth user experience.

6. Deleting Records (Sweet Alert)

   Streamlining data deletion tasks with interactive functionality:
   - Integrate Sweet Alert for user-friendly confirmation dialogs prior to record deletion.
   - Enhance user interactions by initializing and triggering Sweet Alert dialog boxes using JavaScript.
   - Implement a dedicated function to handle record deletion and provide informative flash messages upon completion.

With these steps, our Python Flask RBAC application evolves into a dynamic powerhouse, offering users a seamless experience for managing data. Stay tuned as we continue to enhance and refine our application in the days to come!

Source Code on GitHub
Click here to access or download the source code.