Symfony EasyAdmin: How to Create a CRUD DELETE for Another Entity

If you’re reading this, chances are you’re struggling to create a CRUD (Create, Read, Update, Delete) operation in Symfony’s EasyAdmin for an entity that’s related to another entity. Don’t worry, I’ve got you covered! In this article, we’ll dive into the world of EasyAdmin and explore how to create a DELETE operation for an entity that’s connected to another entity.

What’s the Big Deal?

Before we dive into the solution, let’s talk about why this is a common problem in the first place. Imagine you have two entities: `Order` and `OrderItem`. An `Order` can have multiple `OrderItem`s, and each `OrderItem` belongs to one `Order`. When you delete an `Order`, you also want to delete all its associated `OrderItem`s. Sounds simple, right? But in EasyAdmin, this can get tricky.

The Problem with EasyAdmin’s Default Behavior

By default, EasyAdmin uses the `DELETE` method to remove an entity from the database. However, when you delete an `Order`, EasyAdmin won’t automatically delete its associated `OrderItem`s. This is because the deletion process is performed at the entity level, without considering related entities.

Why We Need a Custom DELETE Operation

To solve this problem, we need to create a custom DELETE operation that takes into account the relationships between entities. We’ll create a custom action that deletes the `Order` and its associated `OrderItem`s in one go.

Step 1: Create a Custom Controller

The first step is to create a custom controller that will handle the DELETE operation for our `Order` entity. Create a new file `src/Controller/Admin/OrderController.php` with the following content:

<?php

namespace App\Controller\Admin;

use App\Entity\Order;
use EasyCorp\Bundle\EasyAdminBundle\Controller\AbstractCrudController;
use EasyCorp\Bundle\EasyAdminBundle\Field\IdField;
use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;

class OrderController extends AbstractCrudController
{
    public static function getEntityFqcn(): string
    {
        return Order::class;
    }

    public function configureFields(string $pageName): iterable
    {
        return [
            IdField::new('id'),
            TextField::new('customerName'),
        ];
    }
}

Step 2: Define the DELETE Action

In the same controller, add a new method `deleteOrderAction()` that will handle the DELETE operation:

<?php

// ...

public function deleteOrderAction(Request $request, Order $order)
{
    $em = $this->getDoctrine()->getManager();

    // Delete OrderItems associated with this Order
    $orderItems = $order->getOrderItems();
    foreach ($orderItems as $orderItem) {
        $em->remove($orderItem);
    }

    // Delete the Order itself
    $em->remove($order);

    $em->flush();

    return $this->redirectToRoute('admin_orders_index');
}

Step 3: Configure the DELETE Action in EasyAdmin

In `src/config/easyadmin.yaml`, add the following configuration to enable the custom DELETE action:

easy_admin:
  entities:
    Order:
      class: App\Entity\Order
      controller: App\Controller\Admin\OrderController
      delete:
        action: deleteOrder

Step 4: Add the DELETE Button to the Order Index Page

In `src/views/admin/order/index.html.twig`, add a new button to the action column:

<{% extends '@EasyAdmin/default/index.html.twig' %}

<{% block actions %}>
  {# ... #}
  <a href="<?php {{ path('admin_orders_delete', {'id': entity.id}) }} ?>">
    <i class="fas fa-trash"></i>
  </a>
<{% endblock %}>

Step 5: Test the DELETE Operation

That’s it! Now, when you delete an `Order`, EasyAdmin will automatically delete all its associated `OrderItem`s. Test the DELETE operation by going to the `Order` index page, clicking the “Delete” button next to an `Order`, and verifying that the associated `OrderItem`s are also deleted.

Conclusion

Creating a custom DELETE operation for an entity that’s related to another entity in Symfony’s EasyAdmin may require some extra effort, but it’s definitely doable. By following these steps, you’ve successfully implemented a DELETE operation that takes into account the relationships between entities.

Bonus: Tips and Variations

Here are some additional tips and variations to consider:

• Use a more robust approach to handle relationships between entities, such as using Doctrine’s `cascade` option.
• Implement a confirmation step before deleting an entity to prevent accidental deletions.
• Use a custom template for the DELETE button to customize its appearance.
• Extend the custom DELETE operation to handle more complex relationships between entities.

Remember, the key to success lies in understanding how EasyAdmin works and how to customize it to fit your specific needs.

Final Thoughts

In this article, we’ve covered how to create a custom DELETE operation in Symfony’s EasyAdmin for an entity that’s related to another entity. By following these steps and tips, you’ll be able to handle complex relationships between entities with ease.

Happy coding, and don’t hesitate to reach out if you have any questions or need further assistance!

Entity	CRUD Operation
Order	DELETE (custom)
OrderItem	DELETE (cascade)

Related Articles

• Symfony EasyAdmin: How to Create a CRUD Operation for a Related Entity
• Symfony Doctrine: How to Use Cascade Deletes for Related Entities
• EasyAdmin Customization: How to Create a Custom Template for a CRUD Operation

Read more articles on Symfony, EasyAdmin, and Doctrine to become a master of building robust and scalable applications!

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