codehero-mx/nova-json-wrapper

Allows you to group Nova fields and merge their output into a single JSON column.

1.0.0 2026-03-19 10:09 UTC

Requires

• php: ^8.2
• laravel/nova: ^5.0

MIT

• Rafael Milewski

• json
• nova
• laravel
• json-wrapper

README

A Laravel Nova 5 field that groups multiple Nova fields and stores their values as a single JSON column. Supports nested wrappers, validation, dependsOn for dynamic fields, and works seamlessly on create, update, and detail views.

Requirements

• PHP ^8.2
• Laravel Nova ^5.0
• Vue 3 (included with Nova 5)

Installation

composer require codehero-mx/nova-json-wrapper

The service provider is auto-registered.

Usage

1. Cast the JSON column on your model

class User extends Model
{
    protected $casts = [
        'setting_value' => 'array',
    ];
}

2. Add HasJsonWrapper trait and define fields in your Nova resource

use CodeheroMx\JsonWrapper\JsonWrapper;
use CodeheroMx\JsonWrapper\HasJsonWrapper;
use Laravel\Nova\Fields\Number;
use Laravel\Nova\Fields\Text;
use Laravel\Nova\Http\Requests\NovaRequest;

class User extends Resource
{
    use HasJsonWrapper;

    public function fields(NovaRequest $request): array
    {
        return [
            Text::make('Name', 'name')->rules('required'),

            JsonWrapper::make('options', [
                Text::make('First Name', 'first_name')->rules('required'),
                Text::make('Last Name', 'last_name')->rules('required'),
                Number::make('Age', 'age')->rules('required', 'numeric', 'min:0'),
            ]),
        ];
    }
}

This stores the following JSON in the options column:

{ "first_name": "John", "last_name": "Doe", "age": 30 }

3. Nested wrappers

You can nest JsonWrapper fields to create deep JSON structures:

JsonWrapper::make('options', [
    Text::make('First Name', 'first_name')->rules('required'),
    Text::make('Last Name', 'last_name')->rules('required'),

    JsonWrapper::make('body_mass', [
        Number::make('Weight', 'weight')->rules('required'),
        Number::make('Height', 'height')->rules('required'),
    ]),
])

Result:

{
    "first_name": "John",
    "last_name": "Doe",
    "body_mass": {
        "weight": 70,
        "height": 180
    }
}

4. Dynamic fields with dependsOn

JsonWrapper supports Nova's dependsOn to dynamically change the child fields based on another field's value. This is useful when the JSON structure varies depending on a selection.

In the dependsOn callback you receive the JsonWrapper instance — replace its $field->fields collection with the new set of fields and call $field->show() or $field->hide() as needed.

use Laravel\Nova\Fields\FormData;
use Laravel\Nova\Fields\Number;
use Laravel\Nova\Fields\Select;
use Laravel\Nova\Fields\Text;

public function fields(NovaRequest $request): array
{
    return [
        Select::make('Role', 'role')
            ->options([
                'developer' => 'Developer',
                'designer' => 'Designer',
            ])
            ->rules('required'),

        JsonWrapper::make('profile', $this->profileFieldsFor($this->resource->role ?? ''))
            ->dependsOn(
                ['role'],
                function (JsonWrapper $field, NovaRequest $request, FormData $formData) {
                    $role = $formData->get('role');

                    $field->fields = collect(match ($role) {
                        'developer' => [
                            Select::make('Language', 'language')
                                ->options(['php' => 'PHP', 'js' => 'JavaScript', 'go' => 'Go'])
                                ->rules('required'),
                            Number::make('Years of Experience', 'experience')->rules('required', 'min:0'),
                        ],
                        'designer' => [
                            Text::make('Tool', 'tool')->rules('required'),
                            Text::make('Portfolio URL', 'portfolio_url')->rules('required', 'url'),
                        ],
                        default => [],
                    });

                    $role ? $field->show() : $field->hide();
                },
            ),
    ];
}

/**
 * Return the initial child fields for edit/detail views.
 */
private function profileFieldsFor(string $role): array
{
    return match ($role) {
        'developer' => [
            Select::make('Language', 'language')
                ->options(['php' => 'PHP', 'js' => 'JavaScript', 'go' => 'Go'])
                ->rules('required'),
            Number::make('Years of Experience', 'experience')->rules('required', 'min:0'),
        ],
        'designer' => [
            Text::make('Tool', 'tool')->rules('required'),
            Text::make('Portfolio URL', 'portfolio_url')->rules('required', 'url'),
        ],
        default => [],
    };
}

When the user selects a role, the wrapper swaps its child fields accordingly. On edit, existing JSON values are automatically resolved into the fields.

Tip: The initial fields passed to JsonWrapper::make() are used when the resource already exists (edit/detail). The dependsOn callback fires on every form sync and replaces them dynamically.

How it works

• JsonWrapper extends Laravel\Nova\Fields\Field with the SupportsDependentFields trait. It manages a collection of child fields that are resolved, filled, and validated against the JSON column.
• HasJsonWrapper is a trait for your Nova Resource that ensures the wrapper is included during form operations (create, update, sync) and flattens child fields on the detail view so they display individually.
• On the frontend, the Vue 3 component uses Nova's DependentFormField mixin to handle dependsOn synchronization, visibility toggling, and delegating fill() to rendered child component instances.

Notes

• There are no visual indications that the fields are wrapped in JSON — they appear as normal Nova fields. This is intentional.
• The HasJsonWrapper trait is required on any resource that uses JsonWrapper. It handles field visibility across different Nova controllers (create, update, detail, index, sync).
• Validation rules on child fields work exactly like regular Nova fields (->rules('required', 'numeric'), etc.).

Credits

This package is based on nova-json-wrapper by Digital Creative, originally licensed under MIT. It has been upgraded and adapted for Laravel Nova 5.

License

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