Nova Translatable

This Laravel Nova allows you to make any input field spatie/laravel-translatable compatible and localisable.

Requirements

PHP: ^8.0
laravel/nova: ^4.12
spatie/laravel-translatable: ^4.0 || ^5.0 || ^6.0

Features

Supports almost all fields (including third party ones)
Supports default validation automatically
Simple to implement with minimal code changes (after spatie/laravel-translatable support)
Locale tabs to switch between different locale values of the same field
Double click on a tab to switch all fields to that locale
Supports nova-settings package

Known non-working fields

Image and File
- Workarounds:
  - outl1ne/nova-media-hub
  - or any library that uploads images/files using XHR

Limitations

The following methods can not be used, as this package uses them internally:
- resolveUsing
- fillUsing

Screenshots

Installation

Firstly, set up spatie/laravel-translatable.

Install the package in a Laravel Nova project via Composer:

# Install nova-translatable
composer require outl1ne/nova-translatable

# Publish configuration (optional, but useful for setting default locales)
php artisan vendor:publish --tag="nova-translatable-config"

Usage

Call ->translatable() on any field, like so:

// Any Nova field
Text::make('Name')
  ->rules('required', 'min:2')
  ->translatable(),

// Any third-party input field
Multiselect::make('Football teams')
  ->rules('required')
  ->translatable(),

// Optionally pass custom locales on a per-field basis
Number::make('Population')
  ->translatable([
    'en' => 'English',
    'et' => 'Estonian',
  ]),

Validation

It's possible to define locale specific validation rules.

To do so, add the ->rulesFor() on your field and the HandlesTranslatable trait to your Nova resource.

->rulesFor accepts array|string|callable locales and array|callable rules.

use Outl1ne\NovaTranslatable\HandlesTranslatable;

class Product extends Resource
{
    use HandlesTranslatable;

    public function fields(Request $request)
    {
        return [
            Text::make(__('Name'), 'name')
                ->sortable()
                ->translatable()
                ->rules(['max:255'])
                ->rulesFor('en', [
                    'required',
                ])
                ->rulesFor(['en', 'et'], function ($locale) {
                    return ["unique:products,name->$locale{{resourceId}}"];
                }),
        ];
    }
}

In this example, rules will be added to the following values

max: name.*
required: name.en
unique: name.en & name.et

Configuration

You can define default locales for all the translatable fields in the config file. The config file can be published using:

php artisan vendor:publish --tag="nova-translatable-config"

Fill other locales from config option

The configuration option fill_other_locales_from allows you to pre-fill other locales from just one locale. This requires the resources to also have the HandlesTranslatable trait.

One select for all fields on a page

If you don't want to display the locale select next to each field, you can set the display_type to none and add a Outl1ne\NovaTranslatable\Fields\LocaleSelect field to your Nova resource. This will render a single select for all fields.

Custom locale display

To customize the locale display you can use Nova::provideToScript to pass customLocaleDisplay as in the example below.

// in app/Providers/NovaServiceProvider.php

public function boot()
{
    Nova::serving(function () {
        Nova::provideToScript([
            // ...
            'customLocaleDisplay' => [
                'en' => <img src="/flag-en.png"/>,
                'et' => <img src="/flag-et.png"/>,
            ]
        ]);
    });
}

Edge cases

BelongsToMany allowDuplicateRelations corner-case

When using this field inside a BelongsToMany as a pivot field with ->allowDuplicateRelations() and you want to filter out exact matches using the NotExactlyAttached rule, use the BelongsToManyTranslatable field instead of the regular BelongsToMany.

Credits

Tarvo Reinpalu

License

This project is open-sourced software licensed under the MIT license.