Laravel Helpful Code Snippets

Followings are some of useful code snippets of Laravel:

1). Show validation errors in view:

@if($errors->has())
   @foreach ($errors->all() as $error)
      <div>{{ $error }}</div>
  @endforeach
@endif

2) Prevent errors by using the optional helper:

When accessing object values, if that object is null, your code will raise an error. A simple way of avoiding errors is to use the optional Laravel helper. see below example:

return optional($data)->total;

3) Make Copy of a Row:

See below example to make a copy of database entry using Replicate method:

$post = Posts::find(1);

$newPost = $post->replicate();

$newPost->save();

4) Using Default SQL Queries:

If you want to run a simple SQL query, without getting any results – like changing something in DB schema, you can just do DB::statement(). see below example:

DB::statement('drop table users');

5) Blade @auth

Instead of using if condition to check logged in user, you can use @auth directive. see below example:

@if(auth()->user())
    // The user is authenticated.
@endif

6) Test email into laravel log file:

If you want to test email in your laravel app but unable to set up something like Mailgun, You can use .env parameter MAIL_DRIVER=log and all the email will be saved into storage/logs/laravel.log file, instead of actually being sent.

7) Generate Images with Seeds/Factories:

You can generate images with factories. see below example:

$factory->define(Post::class, function (Faker $faker) {
    return [
        'name' => $faker->name,
        'email' => $faker->unique()->safeEmail,
        'email_verified_at' => now(),
        'password' => bcrypt('password'),
        'remember_token' => Str::random(10),
        'avatar' => $faker->image(storage_path('images'), 50, 50)
    ];
});

8) Laravel Clear Cache:

You can clear cache from one place instead of running multiple artisan commands. Go to your routes/web.php file and add below code.

<?php

Route::get('/clear-cache', function() {
     $exitCode = Artisan::call('config:cache');
     $exitCode = Artisan::call('cache:clear');
     $exitCode = Artisan::call('view:clear');
     $exitCode = Artisan::call('route:cache');
});

Now open up your browser and add this route like below.

https://your_site_url/clear-cache

Hope this helps!