[9.x] Translation of the default message of the validator

[andrey-helldar]

Before:

{
    "message": "The given data was invalid.",
    "errors": {
        "email": [
            "Taki adres e-mail już występuje."
        ]
    }
}

{
    "message": "Taki adres e-mail już występuje. (and 1 more error)",
    "errors": {
        "email": [
            "Taki adres e-mail już występuje."
        ],
        "name": [
            "Taki nazwa już występuje."
        ]
    }
}

After

{
    "message": "Podane dane były nieprawidłowe.",
    "errors": {
        "email": [
            "Taki adres e-mail już występuje."
        ]
    }
}

{
    "message": "Taki adres e-mail już występuje. (i jeszcze 1 błąd)",
    "errors": {
        "email": [
            "Taki adres e-mail już występuje."
        ],
        "name": [
            "Taki nazwa już występuje."
        ]
    }
}

On line 99, I deliberately put the space character outside the translation function, as it can be confusing for developers, namely, they can compose translations as "(and :count more errors)" instead of " (and :count more errors)" and will not understand why the translation does not work.

[igorgaming]

Finally it was accepted.
Before that there were a bunch of attempts at the same changes that were closed.

[Elnadrion]

It's a cool thing, thanks!

[Pablo-Camara]

Tried this and none worked ( in validation.php translation file ):

' (and :count more errors)' => 'Test',
'(and :count more errors)' => 'Test',
' (and :count more error)' => 'Test',
'(and :count more error)' => 'Test',
' (and 1 more error)' => 'Test',
'(and 1 more error)' => 'Test',

[andrey-helldar]

@Pablo-Camara, you need to add this to json file like fr.json, not a validation.php.

For example, lang/fr.json:

{
    "(and :count more error)": "(et :count erreur en plus)",
    "(and :count more errors)": "(et :count erreurs en plus)",
}

You can also install a localization publisher for your project: publisher.laravel-lang.com

[arg2009]

For anyone else who like us uses PHP files rather than JSON files for translations.

We used a Service Provider to inject language strings from validation.php into the Lang lines so that the translation system would pick them up as if they were sourced from JSON files.

class ValidationServiceProvider extends ServiceProvider
{
    public const JSON_INJECTION_KEY = 'json-injection';

    public function boot(): void
    {
        // ...
        $this->injectJsonTranslations();
    }

    /**
     * Because of Laravel's ValidationException::summarize function only supports JSON translations,
     * we are injecting some strings into Laravel's Lang engine to make the function's translation
     * work with php lang files.
     *
     * @see ValidationException::summarize()
     */
    protected function injectJsonTranslations(): void
    {
        $locales = collect(scandir(lang_path()))
            ->filter(fn (string $locale) => ! Str::startsWith($locale, '.'));

        $locales->map(function (string $locale): void {
            $langFilePath = lang_path("{$locale}/validation.php");

            if (! file_exists($langFilePath)) {
                return;
            }

            $languageStrings = require $langFilePath;

            if (array_key_exists(self::JSON_INJECTION_KEY, $languageStrings)) {
                foreach ($languageStrings[self::JSON_INJECTION_KEY] as $key => $value) {
                    Lang::addLines(["*.{$key}" => $value], $locale);
                }
            }
        });
    }
}

So our validation.php file looks like this:

<?php

return [
    // ...
    
    /**
     * @see ValidationServiceProvider::injectJsonTranslations
     */
    \App\Providers\ValidationServiceProvider::JSON_INJECTION_KEY => [
        '(and :count more error)' => '(and :count more error)',
        '(and :count more errors)' => '(and :count more errors)',
    ],
];

[Pablo-Camara]

@andrey-helldar that worked! My mistake trying to add in the validation.php , thanks for the help!