Requête éloquente laravel avec relation
Exemples de code
associé laravel
When updating a belongsTo relationship, you may use the associate method. This
method will set the foreign key on the child model:
$account = App\Account::find(10);
$user->account()->associate($account);
$user->save();
When removing a belongsTo relationship, you may use the dissociate method. This
method will set the relationship foreign key to null:
$user->account()->dissociate();
$user->save();relations éloquentes de laravel
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Project extends Model
{
/**
* Get all of the deployments for the project.
*/
public function deployments()
{
return $this->hasManyThrough(Deployment::class, Environment::class);
}
}où la requête de la table de relations dans laravel
UserModel::whereHas('attachments', function ($attachmentQuery) {
$attachmentQuery->where('level', 'profile_level');
})->get();
If you want from already queried model get specific attachments then write
$userModel->attachments()->where('level', 'profile_level')->get();
it is impossible to query both UserModel and AttachementModel in single query,
it must be at least two queries. Even fancy
UserModel::with('attachments')->get();,
which returns user with all attachments, do internally two queries.
OR:
I noticed that you can define relation constraints within with method
UserModel::with(['attachments' => function ($attachmentQuery) {
$attachmentQuery->where('level', 'profile_level');
}])->get();Pages connexes
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