Delete Guard

• What does it do?
• Installation
• Usage
  • 1) Implement the contract and use the trait
• Filament integration
  • BulkActions support
  • Optional: Disable the delete action and show tooltip
• How it works internally
• Translations
• License

Prevent unsafe deletions in Filament by enforcing deletion rules at the model level and showing friendly notifications when deletion is blocked.

#What does it do?

This package provides:

• A small contract (HasPreventDeletion) to describe deletion rules.
• A trait (InteractsWithPreventDeletion) with the core logic to validate relations and custom rules.
• A CannotDeleteModelException to block deletion.
• Filament integration that customizes DeleteAction to:
  • disable the action (optional),
  • show a tooltip (optional),
  • attempt $record->delete() and, if blocked, show a Filament notification.

#Installation

composer require joserojasrodriguez/filament-delete-guard

The package automatically registers its service provider (Laravel package discovery).

#Usage

#1) Implement the contract and use the trait

In your Eloquent model:

use Illuminate\Database\Eloquent\Model;
use Joserojasrodriguez\FilamentDeleteGuard\Contracts\HasPreventDeletion;
use Joserojasrodriguez\FilamentDeleteGuard\Traits\InteractsWithPreventDeletion;

class Invoice extends Model implements HasPreventDeletion
{
    use InteractsWithPreventDeletion;

    public function deletionRelations(): array
    {
        return [
            // relation method => human label (used in the default message)
            'payments' => 'payments',
            'lines' => 'lines',
        ];
    }

    public function deletionMessages(): array
    {
        return [
            // optional per-relation override
            'payments' => 'You cannot delete an invoice with associated payments.',
        ];
    }

    public function customDeletionRules(): void
    {
        // Optional: add any extra checks here.
        // To block deletion, throw CannotDeleteModelException.
        // throw CannotDeleteModelException::because('This invoice is locked.');
    }
}

Note: You do not need to manually add the deleting hook in your model. The InteractsWithPreventDeletion trait handles it automatically.

#Filament integration

Filament integration globally configures the delete action:

• Calls $record->delete() and catches CannotDeleteModelException.
• If the exception occurs, shows a Filament notification with:
  • title: filament-delete-guard::messages.deletion_prevented
  • body: the exception message

#BulkActions support

The package works with Filament DeleteBulkAction.

Each record deletion is executed individually, so the deleting event is triggered for every model. If a record throws CannotDeleteModelException, Filament counts it as a failed deletion and continues processing the remaining records.

Partial success notifications are automatically handled by Filament.

#Optional: Disable the delete action and show tooltip

If your model implements these methods, the delete action can be disabled and display a tooltip:

public function showDeleteAction(): bool
{
    return false; // disables the delete action
}

public function showDeleteActionMessage(): ?string
{
    return 'Cannot delete because it is reconciled.'; // tooltip text
}

These methods are checked at runtime by the Filament action configuration.

#How it works internally

The trait registers a model deleting event using Laravel’s trait booting convention:

protected static function bootInteractsWithPreventDeletion(): void
{
    static::deleting(fn ($model) => $model->ensureCanBeDeleted());
}

#Translations

The package ships translations for:

• filament-delete-guard::messages.deletion_prevented
• filament-delete-guard::messages.has_relation

Default messages (en):

• Deletion blocked
• Cannot delete because it has :relation associated.

#License

MIT