https://github.com/webparking/nova-belongs-to-dependency

This package is an extension of Laravel Nova's existing BelongsTo field and Vue components.

You can install this package on a Laravel app that uses Nova via composer:

composer require manmohanjit/nova-belongs-to-dependency

The following will list categories with type_id equal to the value set in the first BelongsTo field.

use Manmohanjit\BelongsToDependency\BelongsToDependency;
...
return [
    ...
    BelongsTo::make('Type'),
    
    BelongsToDependency::make('User')
        ->dependsOn('type', 'type_id'),
    ...
];

Look at the example below for other use cases.

Database Structure

• Type (id, name)
• Posts (id, type_id, category_id, title, body)
• Category (id, type_id, title)

We should only be able to assign categories to posts that belong to the same type.

This is how you would achieve it on the Nova category resource:

use Manmohanjit\BelongsToDependency\BelongsToDependency;
...
return [
    ...
    BelongsTo::make('Type'),
    
    BelongsToDependency::make('User')
        ->dependsOn('type', 'type_id'),
    ...
];

This would work if you used a text/enum type field too.

use Manmohanjit\BelongsToDependency\BelongsToDependency;
...
return [
    ...
    Select::make('Type')->options([
        'post' => 'Post',
        'page' => 'Page',
    ])>displayUsingLabels(),
    
    BelongsToDependency::make('User')
        ->dependsOn('type', 'type'),
    ...
];

Please see CHANGELOG for more information on what has changed recently.

• nova-belongsto-depend (alternative)
• nova-dependency-container

This tool extends the base Laravel Nova BelongsTo field and is inspired by Nova Dependency Container.

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