README

This package allows you to display and manage resource hierarchy in a tree view within Laravel Nova.

Features

• Drag-and-drop nesting and reordering
• A large number of configuration options
• Laravel Authorization support
• Localization support

Requirements

Installation Requirements

• php: >=8.1
• laravel/nova: ^5.0

Model Requirements

This package requires your model's database table to have the following columns:

You can customize the names of these columns - see customizing model keys below for details.

Installation

1. Install this package via composer:

composer require bencolmer/nova-resource-hierarchy

1. Register the tool with Laravel Nova via the tools method of the NovaServiceProvider.

// in app/Providers/NovaServiceProvider.php

use BenColmer\NovaResourceHierarchy\ResourceHierarchy;

// ...

public function tools()
{
    return [
        // ...

        ResourceHierarchy::make(\App\Nova\MyResource::class),
    ];
}

Next, take a look through the available configuration options.

Configuration

Once you have registered the tool in Nova, you have several configuration options available:

Customizing Model Keys

Set the ID, Parent ID, and order column (optional) names for the underlying model of a resource.

public function tools()
{
    return [
        ResourceHierarchy::make(\App\Nova\MyResource::class),
+           ->keyNames('idColumnName', 'parentIdColumnName', 'orderColumnName')
    ];
}

Enable Reordering

Enables reordering of the resource hierarchy (this functionality is disabled by default).

public function tools()
{
    return [
        ResourceHierarchy::make(\App\Nova\MyResource::class),
+           ->enableReordering()
    ];
}

Maximum Depth

Set the maximum hierarchy depth.

By default, the maximum depth is 10.

public function tools()
{
    return [
        ResourceHierarchy::make(\App\Nova\MyResource::class),
+           ->maxDepth(3)
    ];
}

Available Actions

You can control which actions (Create, View, Update, and Delete) are available.

By default, the Create, View, Update, and Delete actions are available. These actions are protected by authorization policies.

public function tools()
{
    return [
        ResourceHierarchy::make(\App\Nova\MyResource::class),
+           ->actions(['create', 'view', 'update', 'delete'])
    ];
}

Menu Entry

You can customize the menu entry title/icon:

public function tools()
{
    return [
        ResourceHierarchy::make(\App\Nova\MyResource::class),
+           ->menuTitle('This will be the menu title')
+           ->menuIcon('globe-alt')
    ];
}

Alternatively, you can hide the menu entry entirely:

public function tools()
{
    return [
        ResourceHierarchy::make(\App\Nova\MyResource::class),
+           ->hideMenu()
    ];
}

Page Title/Description

You can customize the title of the page and set a description.

public function tools()
{
    return [
        ResourceHierarchy::make(\App\Nova\MyResource::class),
+           ->pageTitle('Manage Hierarchy')
+           ->pageDescription('Manage the resource hierarchy below.')
    ];
}

Item Title

You can customize the title of each item displayed in the hierarchy.

By default, the resource title will be displayed.

use Illuminate\Database\Eloquent\Model;

// ...

public function tools()
{
    return [
        ResourceHierarchy::make(\App\Nova\MyResource::class),
+           ->formatItemTitle(fn(Model $item) => implode(' - ', ([$item->id, $item->name])))
    ];
}

Authorization

This package uses Laravel's authorization policies to check a user's Create / View / Update / Delete permissions.

You can also define one further authorization method to control whether a user is authorized to reorder the resource hierarchy:

1. Apply the AuthorizesHierarchy trait to your Nova resource:

// in app/Nova/MyResource.php

+ use BenColmer\NovaResourceHierarchy\Traits\AuthorizesHierarchy;

// ...

class MyResource extends Resource
{
+    use AuthorizesHierarchy;

    // ...
}

1. Define a reorderHierarchy method on your Policy class:

// in app/Policies/MyResourcePolicy.php

// ...

class MyResourcePolicy
{
+    /**
+     * Determine whether the user can reorder the hierarchy.
+     */
+    public function reorderHierarchy(User $user): bool
+    {
+        return true; // check if the user is authorized
+    }

    // ...
}

Localization & Message Customization

The package translation files can be published using the following command:

php artisan vendor:publish --provider="BenColmer\NovaResourceHierarchy\ToolServiceProvider" --tag=translations

You can then edit these files to customize the messages as required.

Credits

• Ben Colmer
• Ralph Huwiler (vue-nestable)
• Artem Stepanenko (vue3-nestable)

License

Nova Resource Hierarchy is open-sourced software licensed under the MIT license.