One to many 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

Laravel where has

use Illuminate\Database\Eloquent\Builder;

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

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

Source: laravel.com

One to many laravel

Suppose you have a Post model with a hasMany relationship with Comment. You may insert a Comment object related to a post by doing the following:

$post = Post::find(1);
$commentToAdd = new Comment(['message' => 'This is a comment.']);
$post->comments()->save($commentToAdd);

Source: riptutorial.com

Similar codes

19 votes349 views6 answers
Laravel date validation
PHP Laravel
4 votes354 views4 answers
Multiple middleware laravel
PHP Laravel
3 votes349 views2 answers
Return last inserted id in laravel
PHP Laravel
0 vote347 views1 answer
Laravel make migration controller resource mcr
PHP Laravel
12 votes342 views6 answers
Laravel validate date
PHP Laravel
1 vote348 views5 answers
Laravel eloquent batch insert
PHP Laravel
0 vote381 views1 answer
Back() with errors in laravel
PHP Laravel
1 vote370 views1 answer
Laravel change post request before save
PHP Laravel
12 votes502 views6 answers
Email validation in laravel
PHP Laravel
2 votes361 views1 answer
Laravel sluggable
PHP Laravel