Relationship in laravel

WhereHas site:https://laravel.com/docs/

use Illuminate\Database\Eloquent\Builder;

// Retrieve posts with at least one comment containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
    $query->where('content', 'like', 'code%');
})->get();

// Retrieve posts with at least ten comments containing words like code%...
$posts = Post::whereHas('comments', function (Builder $query) {
    $query->where('content', 'like', 'code%');
}, '>=', 10)->get();

Source: laravel.com

How to use where relationship laravel

Event::with(["owner", "participants" => function($q) use($someId){
    $q->where('participants.IdUser', '=', 1);
    //$q->where('some other field', $someId);
}])

Source: stackoverflow.com

Eloquent relationships

$roles = App\User::find(1)->roles()->orderBy('name')->get();

Source: laravel.com

Laravel how to query belongsTo relationship

$movies = Movie::whereHas('director', function($q) {
    $q->where('name', 'great');
})->get();

Source: stackoverflow.com

Relationship in laravel

N + 1
return new SongsCollection(Song::with('album')->get());

'songs' => SongResource::collection($this->whenLoaded($this->songs))

Laravel relationship

$comment = Post::find(1)->comments()
                    ->where('title', 'foo')
                    ->first();

Source: laravel.com

Similar codes

0 vote271 views1 answer
Laravel display multiple selected values
PHP Laravel
2 votes301 views2 answers
Check if date between two dates laravel eloquent
PHP Laravel
0 vote239 views1 answer
Laravel command Retrieve a specific option
PHP
8 votes261 views6 answers
Laravel validation date
PHP
0 vote223 views1 answer
How to import Yomo in larave;
PHP
30 votes258 views6 answers
Laravel auth
PHP Laravel
0 vote247 views1 answer
Symfony dump request headers
PHP
0 vote241 views1 answer
ForPage return keys on page 2
PHP
-1 vote256 views1 answer
Laravel set production
PHP Laravel
0 vote355 views2 answers
Multiple image upload with CodeIgniter
PHP CodeIgniter