README

IMPORTANT: March 2022

It's horrible to see what is happening now in Ukraine, as Russian army is bombarding houses, hospitals and kindergartens.

Please check out supportukrainenow.org for the ways how you can help people there. Spread the word.

And if you are from Russia and you are against this war, please express your protest in some way. I know you can get punished for this, but you are one of the hopes of those innocent people.

Check if a translated value in a JSON column is unique in the database.

Imagine you want store a slug for a Post model in different languages.

The amazing spatie/laravel-translatable package makes this a cinch!

But then you want to make sure each translation is unique for its language.

That's where this package comes in to play.

This package also supports spatie/nova-translatable in case you are using Laravel Nova and filamentphp/spatie-laravel-translatable-plugin in case you are using Filament.

✅ Requirements

• PHP ^7.2 or PHP ^8.0
• MySQL >= 5.7
• Laravel >= 6
• spatie/laravel-translatable ^4.4|^5.0|^6.0
• spatie/nova-translatable ^3.0
• filamentphp/spatie-laravel-translatable-plugin ^3.0

📦 Installation

Require the package via Composer:

composer require codezero/laravel-unique-translation

Laravel will automatically register the ServiceProvider.

🛠 Usage

For the following examples, I will use a slug in a posts table as the subject of our validation.

☑️ Validate a Single Translation

Your form can submit a single slug:

<input name="slug">

We can then check if it is unique in the current locale:

$attributes = request()->validate([
    'slug' => 'required|unique_translation:posts',
]);

You could also use the Rule instance:

use CodeZero\UniqueTranslation\UniqueTranslationRule;

$attributes = request()->validate([
    'slug' => ['required', UniqueTranslationRule::for('posts')],
]);

☑️ Validate an Array of Translations

Your form can also submit an array of slugs.

<input name="slug[en]">
<input name="slug[nl]">

We need to validate the entire array in this case. Mind the slug.* key.

$attributes = request()->validate([
    'slug.*' => 'unique_translation:posts',
    // or...
    'slug.*' => UniqueTranslationRule::for('posts'),
]);

☑️ Specify a Column

Maybe your form field has a name of post_slug and your database field slug:

$attributes = request()->validate([
    'post_slug.*' => 'unique_translation:posts,slug',
    // or...
    'post_slug.*' => UniqueTranslationRule::for('posts', 'slug'),
]);

☑️ Specify a Database Connection

If you are using multiple database connections, you can specify which one to use by prepending it to the table name, separated by a dot:

$attributes = request()->validate([
    'slug.*' => 'unique_translation:db_connection.posts',
    // or...
    'slug.*' => UniqueTranslationRule::for('db_connection.posts'),
]);

☑️ Ignore a Record with ID

If you're updating a record, you may want to ignore the post itself from the unique check.

$attributes = request()->validate([
    'slug.*' => "unique_translation:posts,slug,{$post->id}",
    // or...
    'slug.*' => UniqueTranslationRule::for('posts')->ignore($post->id),
]);

☑️ Ignore Records with a Specific Column and Value

If your ID column has a different name, or you just want to use another column:

$attributes = request()->validate([
    'slug.*' => 'unique_translation:posts,slug,ignore_value,ignore_column',
    // or...
    'slug.*' => UniqueTranslationRule::for('posts')->ignore('ignore_value', 'ignore_column'),
]);

☑️ Use Additional Where Clauses

You can add 4 types of where clauses to the rule.

where

$attributes = request()->validate([
    'slug.*' => "unique_translation:posts,slug,null,null,column,value",
    // or...
    'slug.*' => UniqueTranslationRule::for('posts')->where('column', 'value'),
]);

whereNot

$attributes = request()->validate([
    'slug.*' => "unique_translation:posts,slug,null,null,column,!value",
    // or...
    'slug.*' => UniqueTranslationRule::for('posts')->whereNot('column', 'value'),
]);

whereNull

$attributes = request()->validate([
    'slug.*' => "unique_translation:posts,slug,null,null,column,NULL",
    // or...
    'slug.*' => UniqueTranslationRule::for('posts')->whereNull('column'),
]);

whereNotNull

$attributes = request()->validate([
    'slug.*' => "unique_translation:posts,slug,null,null,column,NOT_NULL",
    // or...
    'slug.*' => UniqueTranslationRule::for('posts')->whereNotNull('column'),
]);

☑️ Laravel Nova

If you are using Laravel Nova in combination with spatie/nova-translatable, then you can add the validation rule like this:

Text::make(__('Slug'), 'slug')
  ->creationRules('unique_translation:posts,slug')
  ->updateRules('unique_translation:posts,slug,{{resourceId}}');

☑️ Filament

If you are using Filament in combination with filamentphp/spatie-laravel-translatable-plugin, then you can add the validation rule like this:

TextInput::make('slug')
  ->title(__('Slug'))
  ->rules([
    UniqueTranslationRule::for('posts', 'slug')
  ])

TextInput::make('slug')
  ->title(__('Slug'))
  ->rules([
    fn (Get $get) => UniqueTranslationRule::for('posts', 'slug')->ignore($get('id'))
  ])

🖥 Example

Your existing slug column (JSON) in a posts table:

{
  "en":"not-abc",
  "nl":"abc"
}

Your form input to create a new record:

<input name="slug[en]" value="abc">
<input name="slug[nl]" value="abc">

Your validation logic:

$attributes = request()->validate([
    'slug.*' => 'unique_translation:posts',
]);

The result is that slug[en] is valid, since the only en value in the database is not-abc.

And slug[nl] would fail, because there already is a nl value of abc.

⚠️ Error Messages

You can pass your own error messages as normal.

When validating a single form field:

<input name="slug">

$attributes = request()->validate([
    'slug' => 'unique_translation:posts',
], [
    'slug.unique_translation' => 'Your custom :attribute error.',
]);

In your view you can then get the error with $errors->first('slug').

Or when validation an array:

<input name="slug[en]">

$attributes = request()->validate([
    'slug.*' => 'unique_translation:posts',
], [
    'slug.*.unique_translation' => 'Your custom :attribute error.',
]);

In your view you can then get the error with $errors->first('slug.en') (en being your array key).

🚧 Testing

vendor/bin/phpunit

☕️ Credits

• Ivan Vermeyen
• All contributors

🔓 Security

If you discover any security related issues, please e-mail me instead of using the issue tracker.

📑 Changelog

A complete list of all notable changes to this package can be found on the releases page.

📜 License

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