BelongsTo Field with Dependency

Using an older version of Laravel?

This version is compatible with Laravel 5.8 and newer.

If you use an older version of Laravel you can use an older version of the package. These aren't maintained anymore, but they should be pretty stable. We still accept small bugfixes.

• v1 for Laravel 5.7+ / PHP 7.0

Installation

You can install the package in to a Laravel app that uses Nova via composer:

composer require orlyapps/nova-belongsto-depend

Use this field in your Nova Resource

use Orlyapps\NovaBelongsToDepend\NovaBelongsToDepend;

public function fields(Request $request)
{
    return [
        ID::make()->sortable(),
        Text::make('Name')->rules('required', 'max:255'),

        NovaBelongsToDepend::make('Company')
            ->options(\App\Company::all()),
        NovaBelongsToDepend::make('Department')
            ->optionsResolve(function ($company) {
                // Reduce the amount of unnecessary data sent
                return $company->departments()->get(['id','name']);
            })
            ->dependsOn('Company'),
        NovaBelongsToDepend::make('Location')
            ->optionsResolve(function ($company) {
                // Reduce the amount of unnecessary data sent
                return $company->locations()->get(['id','name']);
            })
            ->fallback(
                Text::make('Location Name')->rules('required', 'max:255'),
            )
            ->hideLinkToResourceFromDetail()
            ->hideLinkToResourceFromIndex()
            ->nullable()
            ->dependsOn('Company'),

    ];
}

Sample

Demo Project

• Warehouse hasMany Articles
• Articles belongsToMany Suppliers
• Suppliers belongsToMany Articles

1. Select a Warehouse and get all articles of the warehouse
2. Select a Article and get all suppliers who has this article

public function fields(Request $request)
{
    return [
        ID::make()->sortable(),
        Text::make('Name')->rules('required', 'max:255'),

        NovaBelongsToDepend::make('Warehouse')
        ->options(\App\Warehouse::all())
        ->rules('required'),
        NovaBelongsToDepend::make('Article')
            ->optionsResolve(function ($warehouse) {
                return $warehouse->articles;
            })
            ->dependsOn('Warehouse')
            ->rules('required'),
        NovaBelongsToDepend::make('Supplier')
            ->optionsResolve(function ($article) {
                return \App\Supplier::whereHas('articles', function ($q) use ($article) {
                    $q->where('article_id', $article->id);
                })->get();
            })
            ->dependsOn('Article')
            ->rules('required'),


    ];
}

Security

If you discover any security related issues, please email info@orlyapps.de instead of using the issue tracker.

Credits

• Orlyapps

License

The MIT License (MIT). Please see License File for more information.