Laravel Posts

While developing complex applications, sometimes we have to validate fields and data in a totally customized way, at that time you can use laravel's custom validations rules functionality.

In this tutorial, we are going to create our own custom validation rule to compare UUID. In our case, I have to check the UUID which is actually a binary string, whether it exists on DB or not.

Laravel doesn't provide any rule to compare that binary UUID string, so we will create our own validation rule.

So let's create our custom validation rule::

Generate Custom Validation Class

So here we have created a new class named UuidExists into App\Rules

namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
use Ramsey\Uuid\Uuid;
class UuidExists implements Rule
{

    protected $table;
    protected $column;

    public function __construct($table, $column)
    {
        $this->table = $table;
        $this->column = $column;
    }
    public function passes($attribute, $value)
    {
        $value = Uuid::fromString(strtolower($value))->getBytes();
        return \DB::table($this->table)->where($this->column, $value)->exists();
    }
    public function message()
    {
        return 'The validation error message.';
    }
}

Add Rule to AppServiceProvider

Add your rule to AppServiceProvider.php into boot() method. here I have to give the name uuid_exists to my custom rule. you can give your own name whatever you want.

\Validator::extend('uuid_exists', function ($attribute, $value, $parameters, $validator) {
    list($table, $column) = $parameters;
    return (new UuidExists($table, $column))->passes($attribute, $value);
});

How to use custom rules?

You can use your custom rule as follows. Here we have using the required and uuid_exists rule, where we are passing attributes and values to our custom rule, which will be used to passes($attribute, $value) function.

'tenant_id' => ['required', 'uuid_exists:tenant_id,uuid']

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The OneSingnal is the market leader in push notification providers. It provides mobile + web push, email & in-app messages, and an easy way to send notifications. OneSignal provides official core PHP APIs but not the Laravel package. We are using OneSignal in many projects and write a bunch of line code in all projects where we needed OneSingnal.

One day I had an idea in my mind why I should not write a Laravel wrapper for OneSignal?. Finally, I wrote the shailesh-ladumor/one-signal Laravel Wrapper for it. Using this package, we can write neat & clean code and just a few lines of code.

OneSignal add this package in his official docs here

You can watch the following video tutorial or follow the article.

This package also works with the previous Laravel version.

Today we are going to see how we can use Laravel OneSignal Wrapper in Laravel. Let's see step by step, how we can do that.

Spet 1: Install Packages

Install shailesh-ladumor/one-signal by the following command,

composer require ladumor/one-signal

Step 2: Publish the config file

Run the following command to publish config file,

php artisan vendor:publish --provider="Ladumor\OneSignal\OneSignalServiceProvider"

Step 3: Add Provider

Add the provider to your config/app.php into the provider section if using a lower version of Laravel,

Ladumor\OneSignal\OneSignalServiceProvider::class

Step 4: Add Facade

Add the Facade to your config/app.php into aliases section,

'OneSignal' => \Ladumor\OneSignal\OneSignal::class

Configure a .env file with following keys

ONE_SIGNAL_APP_ID=XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX 
ONE_SIGNAL_AUTHORIZE=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X 
ONE_SIGNAL_AUTH_KEY=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

ONE_SIGNAL_AUTH_KEY is optional if you do not want to create an app. I hope you are familiar with the One Signal Platform and know how to get APP_ID and AUTHORIZE. If not, you should see the below image for how to get it.

So, we are done. Let's check how to send push notifications.

Check out this code to send a push notification.

use Ladumor\OneSignal\OneSignal; 
$fields['include_player_ids'] = ['xxxxxxxx-xxxx-xxx-xxxx-yyyyy'] 
$message = 'hey!! This is a test push.!' OneSignal::sendPush($fields, $message);